PHOTOGEN TECHNOLOGIES INC
10QSB, 1998-11-13
NON-OPERATING ESTABLISHMENTS
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                                    UNITED STATES
                          SECURITIES AND EXCHANGE COMMISSION
                                Washington, D.C. 20549

                                     FORM 10-QSB

/x/  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
     ACT OF 1934 for the quarterly period ended September 30, 1998

                          Commission File Number 0-23553

                            PHOTOGEN TECHNOLOGIES, INC.
               (Exact name of registrant as specified in its charter)

               NEVADA                             36-4010347
(State or other jurisdiction of    (I.R.S. Employer Identification No.)
 incorporation or organization)

                           7327 OAK RIDGE HIGHWAY, SUITE B
                                 KNOXVILLE, TN 37931
                  (Address of principal executive offices)(Zip Code)

                                    (423) 769-4012
                  (Registrant's telephone number including area code)

     Check whether the issuer (1) has filed all reports required to be filed 
by section 13 or 15(d) of the Securities Exchange Act of 1934 during the past 
12 months (or for such shorter period that the Registrant was required to 
file such reports), and (2) has been subject to such filing requirements for 
the past 90 days:

               YES:  /x/        NO:  / /

     State the number of shares outstanding of each of the issuer's classes 
of common equity, as of the latest practicable date:  36,875,001 SHARES OF 
COMMON STOCK, $.001 PAR VALUE PER SHARE, ISSUED AND OUTSTANDING AS OF 
SEPTEMBER 30, 1998. NO SHARES OF PREFERRED STOCK, $.01 PAR VALUE PER SHARE, 
WERE ISSUED OR OUTSTANDING AS OF THAT DATE.

     Transitional Small Business Disclosure Format:

               YES: / /          NO:  /x/

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<PAGE>


                                        INDEX


                                                                           PAGE

PART I  -  FINANCIAL INFORMATION

     ITEM 1.   FINANCIAL STATEMENTS (UNAUDITED)  . . . . . . . . . . . . .   1

     ITEM 2.   MANAGEMENT'S DISCUSSION AND ANALYSIS OF 
               FINANCIAL CONDITION OR PLAN OF OPERATION  . . . . . . . . .   8

PART II - OTHER INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . 11

          ITEM 5.   OTHER INFORMATION . . . . . . . . . . . . . . . . . . . 11

          ITEM 6.   EXHIBITS AND REPORTS ON FORM 8-K. . . . . . . . . . . . 14




                                          i
<PAGE>

                          PART I. FINANCIAL INFORMATION

ITEM 1.   FINANCIAL STATEMENTS

                           PHOTOGEN TECHNOLOGIES, INC.
                          (A DEVELOPMENT STAGE COMPANY)
                      CONSOLIDATED CONDENSED BALANCE SHEETS

                                     ASSETS
<TABLE>
<CAPTION>
                                                      September 30, 1998     December 31,
                                                           (Unaudited)           1997
                                                      ------------------     -------------
<S>                                                   <C>                    <C>
CURRENT ASSETS
         Cash and cash equivalents                     $    443,578           $     82,631
         Interest receivable                                    -0-                 21,402
         prepaid expenses                                   100,125                  8,164
         Marketable securities                                    -                409,238
                                                       ------------           ------------
                  TOTAL CURRENT ASSETS                      543,703                521,435

UNITED STATES TREASURY NOTES, TOTAL
         FACE VALUE $6,550,000 and $1,538,000             6,759,978              1,531,413

EQUIPMENT AND LEASEHOLD IMPROVEMENTS                        427,651                194,252

PATENTS COSTS                                               123,621                 37,273
                                                       ------------           ------------
                  TOTAL ASSETS                         $  7,854,953           $  2,284,373
                                                       ------------           ------------
                                                       ------------           ------------
                      LIABILITIES AND STOCKHOLDERS' EQUITY

CURRENT LIABILITIES
         Accounts Payable                              $     32,647           $    118,233
         Current portion of obligations under
               capital leases                                19,861                 18,626
                                                       ------------           ------------
                  TOTAL CURRENT LIABILITIES            $     52,508           $    136,859
                                                       ------------           ------------
OBLIGATION UNDER CAPITAL LEASES                              43,357                 60,469
                                                       ------------           ------------
                                                       ------------           ------------

SHAREHOLDERS' EQUITY
         Preferred stock; par value    
         $.01 per share; 5,000,000
         shares authorized; none issued                           -                      -

         Common stock; par value $.001
         per share; 150,000,000 shares
         authorized; 36,875,001 and
         36,000,000 shares issued and
         outstanding                                         36,875                 36,000

         Additional paid-in capital                       9,606,651              2,607,526

         Deficit accumulated during
         development stage after
         recapitalization                                (1,884,438)              (556,481)
                                                       ------------           ------------
                  TOTAL SHAREHOLDERS' EQUITY              7,759,088              2,087,045
                                                       ------------           ------------
                                                       $  7,854,953           $  2,284,373
                                                       ------------           ------------
                                                       ------------           ------------
</TABLE>

                                       1
<PAGE>

                           PHOTOGEN TECHNOLOGIES, INC.
                          (A DEVELOPMENT STAGE COMPANY)
                 CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS
                                   (UNAUDITED)
<TABLE>
<CAPTION>
                                       Three Months      Three Months        Nine Months       Nine Months      Cumulative
                                       Ended             Ended September     Ended             Ended            Amounts
                                       September 30,     30, 1997            September 30,     September        From
                                       1998                                  1998              30, 1997         November 3,
                                                                                                                1996
<S>                                    <C>               <C>                 <C>               <C>              <C>
REVENUES
      Investment Income                $    126,297      $     48,292        $    276,479      $     84,395     $    383,612

EXPENSES
      General and administrative            703,612           237,938           1,604,436           309,675        2,268,050
                                       ------------     -------------       -------------      ------------    -------------

                  NET INCOME (LOSS)    $   (577,315)     $   (189,646)       $ (1,327,957)     $   (225,280)    $ (1,884,438)
                                       ------------     -------------       -------------      ------------    -------------
                                       ------------     -------------       -------------      ------------    -------------
NET INCOME (LOSS)
      PER COMMON SHARE                 $       (.02)     $          -        $       (.04)     $       (.01)
                                       ------------     -------------       -------------      ------------
                                       ------------     -------------       -------------      ------------
WEIGHTED AVERAGE
      NUMBER OF COMMON
      SHARES OUTSTANDING                 36,875,001        36,000,000          36,875,001        32,878,269
                                       ------------     -------------       -------------      ------------
                                       ------------     -------------       -------------      ------------
</TABLE>


                                     2

<PAGE>

                           PHOTOGEN TECHNOLOGIES, INC.
                          (A DEVELOPMENT STAGE COMPANY)
                 CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOW
                                   (UNAUDITED)

<TABLE>
<CAPTION>
                                                                                                       Cumulative
                                                       Nine Months Ended    Nine Months Ended         Amounts From
                                                       September 30, 1998   September 30, 1997      November 3, 1996
<S>                                                    <C>                  <C>                     <C>
OPERATING ACTIVITIES
      Net income (loss)                                 $(1,327,957)             (225,280)          $(1,884,438)
      Depreciation                                           57,369                 2,605                74,883
      Realized gain on United States
        Treasury Notes                                           --               (18,599)              (29,737)
      Loss on Securities                                      9,238                 1,048                18,503
Changes in operating assets and liabilities:
      Prepaid expense                                       (91,961)              (11,329)             (100,125)
      Interest receivable                                    21,402               (47,697)                    -
      Accounts payable                                      (85,586)               29,944                32,649
                                                        -----------         -------------          ------------
      NET CASH PROVIDED (USED) BY
      OPERATING ACTIVITIES                              $(1,417,495)             (269,308)           (1,888,265)
                                                        -----------         -------------          ------------
                                                        -----------         -------------          ------------

INVESTING ACTIVITIES

      Sale of marketable securities                         400,000             1,204,464             2,164,464
      Purchase of marketable securities                          --            (2,222,247)           (2,182,967)
      Purchase of United States Treasury Notes           (7,795,816)           (1,406,212)           (9,840,692)
      Sale of United States Treasury Notes                2,567,249             1,300,780             4,207,099
      Purchase of capital assets                           (290,766)              (72,046)             (419,933)
      Patent cost                                           (86,348)              (14,400)             (123,683)
                                                        -----------         -------------          ------------
                  NET CASH PROVIDED (USED)
                  BY INVESTING ACTIVITIES                (5,205,681)           (1,209,661)           (6,195,712)
                                                        -----------         -------------          ------------
                                                        -----------         -------------          ------------
FINANCING ACTIVITIES
      Proceeds from issuance of common stock              7,000,000                 6,313             7,006,313
      Proceeds from capital contributions by
         stockholders                                             -             1,918,312             1,911,674
      Cost of recapitalization                                    -              (371,111)             (371,111)
      Principal payments on capital lease
         obligations                                        (15,877)                    -               (19,321)
                                                        -----------         -------------          ------------
      NET CASH PROVIDED (USED) BY
      FINANCING ACTIVITIES                                6,984,123             1,553,514             8,527,555
                                                        -----------         -------------          ------------
                                                        -----------         -------------          ------------
NET INCREASE (DECREASE) IN CASH
   AND CASH EQUIVALENTS                                     360,947                74,545               443,578

CASH AND CASH EQUIVALENTS AT
   BEGINNING OF PERIOD                                       82,631                     -                     -
                                                        -----------         -------------          ------------
                  CASH AND CASH
                  EQUIVALENTS
                  AT END OF PERIOD                          443,578                74,545               443,578
                                                        -----------         -------------          ------------
                                                        -----------         -------------          ------------
</TABLE>

                                     3

<PAGE>

                           PHOTOGEN TECHNOLOGIES, INC.
                          (A DEVELOPMENT STAGE COMPANY)
            CONSOLIDATED CONDENSED STATEMENTS OF SHAREHOLDERS' EQUITY
                                   (UNAUDITED)

<TABLE>
<CAPTION>
                                            Common Stock                         Additional       During The
                                                                   Members         Paid-In        Development
                                    Shares            Amount       Capital         Capital           Stage          Total
                                    ------            ------       -------         -------           -----          -----
<S>                             <C>               <C>             <C>          <C>               <C>              <C>
BALANCE AT
    JANUARY 1, 1997             $        -         $        -     $   5,489     $         -       $        -      $     5,489

NET LOSS AND CAPITAL
   CONTRIBUTIONS FOR THE
   PERIOD JANUARY 1, 1997
   TO MAY 15, 1997                        -                 -         3,511               -        (3,511)                  -
                                -----------       -----------     ---------     -----------      -----------      -----------
BALANCE AT MAY 15, 1997         $         -       $         -     $   9,000     $         -       ($3,511)        $     5,489


ISSUANCE OF STOCK FOR
   CASH                         $ 6,312,833       $     6,313             -     $ 1,797,137                -        1,803,450

EFFECT OF
   RECAPITALIZATION
   AND MERGER                    29,687,167            29,687        (9,000)      1,181,500            1,732        1,203,919

COST ASSOCIATED WITH
   RECAPITALIZATION
   AND MERGER                             -                 -             -        (371,111)               -         (371,111)

NET LOSS FOR THE
   PERIOD MAY 16, 1997
   TO DECEMBER 31, 1997                   -                 -             -               -      ($  554,702)        (554,702)
                                -----------       -----------     ---------     -----------      -----------      -----------
BALANCE AT
   DECEMBER 31, 1997             36,000,000            36,000             -     $ 2,607,526         (556,481)       2,087,045


ISSUANCE OF STOCK
   FOR CASH                         875,001               875             -       6,999,125                -        7,000,000


NET LOSS FOR NINE
   MONTHS ENDED
   SEPTEMBER 30, 1998                     -                 -             -               -       (1,327,957)      (1,327,957)
                                -----------       -----------     ---------     -----------      -----------      -----------

BALANCE AT
   SEPTEMBER 30, 1998            36,875,001       $    36,875             -     $ 9,606,651      ($1,884,438)     $ 7,759,088
                                -----------       -----------     ---------     -----------      -----------      -----------
                                -----------       -----------     ---------     -----------      -----------      -----------
</TABLE>

                                     4

<PAGE>

                           PHOTOGEN TECHNOLOGIES, INC.
               NOTES TO CONDENSED FINANCIAL STATEMENTS (UNAUDITED)
                               September 30, 1998

1.   BASIS OF PRESENTATION

     The accompanying unaudited condensed financial statements have been 
prepared in accordance with generally accepted accounting principles for 
interim financial information pursuant to Regulation S-B. Accordingly, they 
do not include all of the information and footnotes required by generally 
accepted accounting principles for complete financial statements. In the 
opinion of management, all adjustments (consisting of normal recurring 
accruals) considered necessary for a fair presentation have been included. 
Operating results for the nine months ended September 30, 1998 and are not 
necessarily indicative of the results that may be expected for the year ended 
December 31, 1998.


                                     5

<PAGE>

ITEM 2.   MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION OR PLAN OF
          OPERATION

     UNCERTAINTIES RELATING TO COMPANY.  Since acquiring Photogen, Inc. in 
May 1997, Photogen Technologies, Inc. (which, together with its wholly-owned 
subsidiary Photogen, Inc., are collectively referred to as the "Company") has 
been principally engaged in the research and development of drugs and medical 
device products and processes for use in photodynamic therapy and imaging 
technology.  The Company has not completed development of any product or 
process at this time and has no revenues from operations.  Portions of the 
discussion in this Item 2 contain forward-looking statements and are subject 
to the Risk Factors described in Item 5 below.

     RESULTS OF OPERATIONS.  The Company has not generated revenues from the 
sale of any proposed products or other operations, and has continued to 
experience losses.  The Company's net loss for the nine month period ended 
September 30, 1998, was $1,327,957, compared to a loss of $225,280 for the 
nine month period ended September 30, 1997.  The Company's net loss for the 
three month period ended September 30, 1998 was $577,315, compared to a loss 
of $189,646 for the three months ended September 30, 1997.  The losses are 
attributable primarily to expenses related to pursuing patent protection for 
the Company's technology, conducting animal studies and other general and 
administrative costs. 

     The Company expects to continue to incur increasing losses for at least 
the next several years as it intensifies its research and development, 
clinical testing, regulatory approval activities and engages in the 
manufacture and/or sale of any products that the Company may develop.  In 
particular, the Company is presently a party to four research contracts with 
various third parties that will require an expenditure of a total of $509,000 
over the remaining terms of those contracts (see "Plan of Operation," below). 

     The Company's revenue for the nine month period ended September 30, 1998 
was $276,479, compared to $84,325 of revenue for the nine month period ended 
September 30, 1997.  The Company's revenue for the three month period ended 
September 30, 1998 was $126,297, compared to $48,292 of revenue during the 
three months ended September 30, 1997.  The revenue resulted primarily from 
investment income on the proceeds from the sale of common stock in the 
Company's 1997 restructuring and its 1998 private placement. The proceeds of 
the sales of the Company's common stock are invested primarily in United 
States Government obligations.  Because the Company has no revenues from 
operations at this time, investment of such funds in that manner is necessary 
to enable the Company to avoid becoming subject to the Investment Company Act 
of 1940.

     LIQUIDITY; CAPITAL RESOURCES.  The Company has used, and expects over 
the next 12 to 18 months to use, the gross proceeds from the March 13, 1998 
private placement and from the sale of stock in the Company's 1997 
restructuring for corporate overhead and operating expenses, animal trials, 
the purchase or lease of scientific and laboratory equipment and related 
facilities, legal and regulatory consulting fees and for other working 
capital purposes, assuming the Company has no revenues during that period.

     PATENT AND OPERATIONAL MATTERS.  The Company is continuing to pursue 
patent protection for its proprietary technologies with the U. S. Patent and 
Trademark Office, and


                                      8

<PAGE>

in various foreign jurisdictions.  In November of 1998, U.S. Patent Number 
5,829,444 issued to the Company containing 68 claims for Photogen's treatment 
application.  In June of 1998, the Company received a Notice of Allowance 
from the U.S. Patent and Trademark Office allowing over 70 claims for 
Photogen's imaging application.  At the United States level, divisional 
patent applications are pending.  In addition, the Company recently filed 
three additional United States patent applications.  The Company has also 
filed patent applications under the Patent Cooperation Treaty ("PCT") 
covering a number of foreign countries, as well as a patent application in 
India.  A preliminary report has been received at the international level, 
indicating the novelty, inventive step and industrial applicability of the 
claims of each PCT application.  The national stages of the PCT applications 
have been entered into in Australia and Canada, with other countries to 
follow. 

     The Company is continuing its animal studies to examine the efficacy of 
photodynamic therapy utilizing its proprietary simultaneous two-photon 
excitation technology in a variety of applications.  The Company has research 
contracts with the University of Tennessee School of Veterinary Medicine and 
the Thomson Cancer Survival Center; and the Company recently announced that 
it signed two research agreements with teaching affiliates of Harvard Medical 
School:  the first agreement is with Massachusetts General Hospital's Center 
for Imaging and Pharmaceutical Research ("CIPR") for the study of possible 
treatment of lung and prostate cancer; the other is with the Massachusetts 
Eye and Ear Infirmary ("MEEI") for the study of possible treatments for 
age-related macular degeneration. Copies of the CIPR and MEEI Research 
Agreements are attached hereto as Exhibits 10.1 and 10.2.

     The Company, primarily in its own laboratories, has been working on 
research pursuant to a Phase 1 Small Business Innovation Research ("SBIR") 
Project grant of $99,927 from the National Institutes of Health National 
Cancer Institute.  During the course of the SBIR project, the Company 
demonstrated successful multiphoton activation of an FDA approved photoactive 
drug in a living organism.  That study also indicated that the Company's 
simultaneous two-photon laser beam could be directed at a target area in a 
mouse liver with little or no collateral damage to other tissues outside the 
target area.  In contrast, conventional single-photon excitation produced 
damage on the laser beam line of flight and in some cases severely damaged 
non-targeted organs.  

     The Company is also conducting research assessing the use of ultrafast 
light to activate melanin and its precursors to kill melanoma cells. 
Preliminary results of that research were announced in September, 1998.  
Tumors produced in mice were treated by scanning the affected area with light 
from an ultrafast pulsed laser. Tumors ranging in size from 6 to 10 mm in 
diameter and up to 3 mm deep, when treated with ultrafast pulsed laser light, 
produced a visible "blanching" effect, resulting from the interaction between 
melanin and the light.  After treatment, tumor volume was reduced by 100 
percent with little or no scarring.  Tumors treated with conventional, 
continuous wave, laser light produced only a minimal response.  Results of a 
single treatment showed that mice with tumors 6 to 10 mm in diameter and 3 mm 
deep showed no evidence of tumor recurrence after three weeks. Tumors 5 to 7 
mm deep have shown some recurrence three weeks after treatment.  However, 
Photogen's multiphoton process is very precisely confined to the confocal 
(concentrated region of light) area of the laser beam, which reaches a depth 
of approximately 3-5 mm.  Therefore, the deeper parts of very large tumors 
under testing conditions described above were not exposed to the confocal 
region and not actually treated.  Recurrent tumors were eliminated upon 
subsequent treatment.  The Company will continue to evaluate the effects of 
multiple treatments for recurrent tumors as well as methods to insure that 
all areas of large tumors can be treated.

                                      9

<PAGE>

          In September, 1998 the Company announced the formation of its 
Scientific Advisory Council.  The Council was organized to provide scientific 
advice and counsel to the Board of Directors and Company management team.  It 
is charged with providing guidance and recommendations to help the Company 
pursue commercially important applications, benefit from the latest 
developments in chemistry, biochemistry, laser design and photochemistry, 
avoid investing Company resources in unprofitable areas, benefit fully from 
the Company's proprietary technologies, become properly staffed and equipped, 
and advance its interests by facilitating the development of licenses and 
collaborative agreements.  In addition to the Company's President, Dr. Daniel 
Tosteson (former dean of the Harvard Medical School and an accomplished 
contributor to the fields of molecular biology and medical education) 
currently serves on the Council. 

     PLAN OF OPERATION.  During the next twelve months, the Company will 
continue with animal studies and evaluation of its proprietary photoactive 
agent candidates, pursuing patent protection and seeking potential research 
and development and collaboration candidates. During the nine months ended 
September 30, 1998, the Company spent approximately $290,766 to acquire the 
laboratory instruments necessary to support animal clinical trials, and on 
development of its proprietary photoactive agent and targeting systems.  
During the third quarter of 1998, the Company purchased $92,750 of equipment 
associated with continuing development of photodynamic therapy procedures, 
(specifically melanoma, barretts esophagus and psoriasis) and equipment for 
the collection and assessment of imaging procedures technology.  The Company 
anticipates increased spending during the fourth quarter for clinical 
equipment and clinical work provided by third-party researchers.  During the 
next twelve months the Company expects to spend approximately $750,000 to 
$1,000,000 to acquire laser systems and related hardware required to support 
new clinical activities at well known clinical research centers.   The four 
research contracts to which the Company is currently a party, in the 
aggregate, will require the Company to spend $850,000 during the next twelve 
months for the projects presently contemplated under those agreements.  
Additional projects may be undertaken with those institutions with 
compensation to be agreed upon at that time.

     The Company is evaluating its future needs for laboratory and office 
space and for scientific, managerial and support personnel.  See "Risk 
Factors" in Item 5, below.  The Company presently anticipates slowly adding 
additional personnel to support its current activities, while deferring any 
substantial growth in hiring and acquisition of space and equipment until the 
final results of the animal testing are known. The Company has hired two 
full-time employees and one part-time employee during the last six months to 
provide personnel for administrative functions and laboratory assistance.  
The Company is also planning to engage a consultant for FDA and related 
regulatory matters.  The Company intends to structure its research and 
development and collaborative arrangements to make the fullest possible use 
of personnel and facilities provided by the parties with whom the Company may 
contract.

     For these reasons, the Company believes it has enough cash resources for 
its current commitments during the next 12 to 18 months and will not be 
required to raise additional funds.  However, as the Company progresses 
toward human clinical trials, its use of capital will increase and will 
continue to do so at an accelerating pace.  Greater capital resources would 
enable the Company to quicken and expand its research and development 
activities over that 12- to 18-month period; and failure to raise additional 
capital will (absent a suitable collaborative agreement providing for a third 
party to take over these functions) significantly impair the Company's 
ability


                                      10

<PAGE>

to conduct further research and development activities beyond those currently 
contracted for as well as its ability to seek regulatory approval for any 
possible product resulting from that research.  In any event, complete 
development and commercialization of the Company's technology will require 
substantial additional funds.  Accordingly, the Company is continuously 
evaluating capital formation activities and opportunities, either as part of 
its collaborative arrangements with third parties or through offerings of 
equity or debt unrelated to collaborations.  See "Risk Factors" in Item 5, 
below.

                             PART II - OTHER INFORMATION

ITEM 5.   OTHER INFORMATION

                                    RISK FACTORS 

     The Company cannot provide assurances that it will successfully achieve 
its goals or the commercial development of its technology in the foreseeable 
future. The Company's success in this regard must at this time be deemed 
speculative. This Form 10-QSB and other announcements and documents of the 
Company contain forward-looking statements which involve risks, uncertainties 
and other factors that may cause the Company's actual results or performance 
to differ materially from any results or performance expressed or implied by 
such forward-looking statements.  The statements under the caption "Risk 
Factors" are intended to serve as cautionary statements within the meaning of 
the Private Securities Litigation Reform Act of 1995 and should be read in 
conjunction with the forward-looking statements in this Report and statements 
presented elsewhere by management of the Company.  Factors that could cause 
or contribute to those differences include the following:  

     DEVELOPMENT STAGE COMPANY; NO PRODUCTS.  The Company and its technology 
are in an early stage of development.  The Company does not have any products 
for sale and has not generated revenues from sales.  The Company does not 
expect to achieve revenues for at least several years.  The products 
currently contemplated for development by the Company will require 
significant additional research and development, preclinical and clinical 
testing and regulatory approval prior to commercialization.  There can be no 
assurances that the Company's research or product development efforts will be 
successfully completed, or that any resulting products will be successfully 
transformed into marketable products, that required regulatory approvals can 
be obtained, that products can be manufactured at an acceptable cost and with 
appropriate quality, that any approved products can be successfully marketed, 
or that any products will be favorably accepted in the market.  

     HISTORY OF LOSSES; NO ASSURANCE OF FUTURE PROFITS; NO DIVIDENDS.  The 
Company and its predecessors have not declared or paid any cash dividends to 
stockholders, and the Company does not expect to do so in the foreseeable 
future.  The Company expects to incur substantial and increasing losses for 
at least the next several years as its financial resources are used for 
research and development, preclinical and clinical testing and regulatory 
activities, manufacturing, marketing and related expenses.  The Company 
cannot provide assurances that it will be able to achieve profitability in 
the future.  


                                      11

<PAGE>

     UNPROVEN SAFETY AND EFFICACY; NO CLINICAL TRIALS.  None of the Company's 
proposed drug and device products have completed the extensive preclinical 
and clinical testing for efficacy and safety in animals and humans required 
for regulatory approval prior to commercial use.  This process may take at 
least several years, and the Company may encounter problems or delays.  If 
clinical trials are successful, there can be no assurances that the Company's 
proposed products will demonstrate sufficient safety or efficacy to warrant 
approval by the Food and Drug Administration or other domestic or foreign 
regulatory authorities or that any approvals will cover the clinical 
indications for which the Company may seek approval. 

     RELIANCE ON THIRD PARTIES, COLLABORATIVE RELATIONSHIPS AND EMPLOYEES.  
The Company does not have manufacturing or clinical testing facilities for 
its proposed products.  The Company intends to enter into collaborative 
relationships with third parties in connection with the research and 
development, preclinical and clinical testing, manufacturing, marketing and 
distribution of its proposed products.  The Company initially will also be 
dependent on third parties for supply of laser products and for supplies of 
photodynamic drugs.  There can be no assurances that the Company will be able 
to negotiate acceptable collaborative and supply arrangements or that 
collaborative arrangements will result in marketable products.  In addition, 
there can be no assurances that collaborative relationships will not limit or 
restrict the Company or give the Company an adequate supply of necessary 
resources.  Further, there can be no assurances that the Company's 
collaborative partners will not develop or pursue alternative technologies 
either on their own or with others, including the Company's competitors, as a 
means of developing or marketing products for the diseases targeted by the 
collaborative programs and the Company's proposed products.  The Company is 
also highly dependent upon six employees for scientific and management 
expertise.  

     SUBSTANTIAL ADDITIONAL FINANCING REQUIRED.  The Company has incurred 
negative cash flows from operations since its inception and will expend 
substantial funds in connection with its research and development programs.  
The Company will require substantial additional funding (the amount of which 
cannot be accurately estimated at this time; however, the amount could be at 
least $50 million) to continue or undertake its research and development 
activities, clinical testing and manufacturing, marketing, sales, 
distribution and administrative activities.  Depending on market conditions, 
the Company will attempt to raise additional capital through equity and debt 
offerings, collaborative relationships and other available sources.  No 
assurances can be given that additional funds will be available on acceptable 
terms (if at all) or the extent of dilution to existing stockholders that may 
result from such offerings.  

     SUBSTANTIAL COMPETITION.  Many of the Company's competitors have 
substantially greater financial, technical and human resources than the 
Company and, alone or with collaborative partnerships, have substantially 
greater experience in developing products, conducting preclinical or clinical 
testing, obtaining regulatory approvals and manufacturing and marketing.  The 
Company's competitors include firms in the field of photodymanic therapy as 
well as firms in other fields generally relating to the diagnosis and 
treatment of disease but which use different technologies or scientific and 
medical approaches.  Some of these firms have drugs or devices that are in 
advanced stages of clinical trials and regulatory approvals.  Examples of 
such technologies are novel anti-tumor drugs, focused ultra-sound and focused 
microwave procedures.


                                      12

<PAGE>

     UNCERTAINTIES REGARDING REIMBURSEMENT AND HEALTH CARE REFORM.  Third 
party payors (including health insurers, managed care entities and similar 
organizations) are increasingly challenging the price of medical procedures 
and services and establishing protocols which may limit physicians' 
selections of products and procedures.  The extent to which third party 
payors will provide reimbursement for health care procedures and services 
(especially those using innovative technologies) is uncertain, and there can 
be no assurances that adequate reimbursement coverage will be available to 
enable the Company to achieve market acceptance of its proposed products or 
to maintain price levels sufficient for realization of an appropriate return 
on its proposed products.  

     UNCERTAINTIES REGARDING PATENT MATTERS.  The Company's success will 
depend, in part, on its ability to obtain, assert and defend its patents, 
protect trade secrets and operate without infringing the proprietary rights 
of others.  There is a risk that some of the Company's patent applications 
will not result in issued patents; and there is a risk that any issued 
patents will not provide the Company with proprietary protection or 
competitive advantages, will be designed around by others, will be challenged 
by others and held to be invalid or unenforceable or that the patents of 
others will have a material adverse effect on the Company.  The Company's 
current technology and any related patents are subject to two Confirmatory 
Licenses in favor of the United States Government as required by applicable 
regulations, in which the Company granted an irrevocable license to the 
Government to use the technology under certain circumstances and granted 
certain "march-in rights" (permitting the Department of Energy to make use of 
the technology under certain circumstances).  The Company also seeks to 
protect its proprietary technology and processes in part by confidentiality 
agreements; however, there can be no assurances that these agreements will 
not be breached, that the Company will have adequate remedies for any breach, 
or that the Company's trade secrets will not otherwise become known or be 
independently discovered by competitors.  

     CONTROL BY EXISTING STOCKHOLDERS.  As of September 30, 1998, the 
Company's officers, directors and principal stockholders beneficially owned 
approximately 86.40% of the outstanding common stock.  Certain of the 
Company's principal stockholders are also parties to a Voting Agreement 
concerning the election of certain designees to the Board of Directors of the 
Company and Photogen, Inc. These stockholders will be able to elect the 
Company's directors and will have the ability to influence significantly the 
Company and the direction of its business and affairs.  Such concentration of 
ownership may delay or prevent a change in control of the Company, and may 
also result in the scarcity of outstanding shares currently available for 
purchase on the open markets.  These factors may affect the market and the 
market price for the common stock in ways that do not necessarily reflect the 
intrinsic value of the Company's stock (see "Possible Volatility of Stock 
Price," below). 

     POSSIBLE VOLATILITY OF STOCK PRICE.  The market price of the Company's 
Common Stock, like that of the securities of other companies generally in the 
biotechnology and similar scientific fields, has fluctuated significantly 
recently and is likely to fluctuate in the future.  The market for securities 
of such companies has experienced significant price and volume fluctuations 
that are unrelated to the operating performance of such companies.  In 
addition, announcements by the Company or others regarding scientific 
discoveries, technological innovations, commercial products, patents or 
proprietary rights, the progress of clinical trials or government regulation, 
public concern as to the safety of devices or drugs, the issuance of 


                                      13

<PAGE>

securities analysts' reports and general market conditions may all have a 
significant effect on the market price of the Company's Common Stock.  
Fluctuations in financial performance from period to period, and the 
availability of stock on the market compared to demand (see "Control by 
Existing Stockholders"), may also have a significant impact on the market 
price of the Common Stock.

ITEM 6.   EXHIBITS AND REPORTS ON FORM 8-K

(a)  Exhibits.  The following exhibits are furnished with this Form 10-QSB:


     EXHIBIT        DESCRIPTION
     -------        -----------

     10.1      Research Agreement dated as of October 1, 1998 by and between
               Photogen, Inc. and Massachusetts General Hospital (relating to
               the Center for Imaging and Pharmaceutical Research).

     10.2      Research Agreement dated as of October 1, 1998 by and between
               Photogen, Inc. and The Massachusetts Eye and Ear Infirmary
               (relating to age-related macular degeneration research).

     27        Financial Data Schedule of  Photogen Technologies, Inc.

(b)  Reports on Form 8-K.

     The following reports on Form 8-K were filed in the three month period 
ended September 30,  1998:

     1.   Report on Form 8-K dated July 14, 1998, announcing U.S. Patent and
          Trademark Office notice of allowance regarding imaging patent
          application.

     2.   Report on Form 8-K dated September 3, 1998 disclosing the Company's
          announcement of preliminary results of research regarding melanoma 
          treatment.

     3.   Report on Form 8-K dated September 24, 1998 disclosing the Company's
          announcement that Daniel Tosteson, M.D., the retired dean of Harvard 
          Medical School, joined the Photogen Scientific Advisory Council.


                                      14

<PAGE>

                                      SIGNATURES

     In accordance with the requirements of the Exchange Act, the Registrant 
caused this report to be signed on its behalf by the undersigned, thereunto 
duly authorized.

                                         Photogen Technologies, Inc.


                                         /s/ John T. Smolik
                                         ------------------------------
Date:   November 13, 1998                John T. Smolik, President


                                      15

<PAGE>

                                    EXHIBIT INDEX


EXHIBIT
NO.       DESCRIPTION
- -------   -----------

10.1      Research Agreement dated as of October 1, 1998 by and between
          Photogen, Inc. and Massachusetts General Hospital (relating to the
          Center for Imaging and Pharmaceutical Research).

10.2      Research Agreement dated as of October 1, 1998 by and between
          Photogen, Inc. and The Massachusetts Eye and Ear Infirmary (relating
          to age-related macular degeneration research).

27        Financial Data Schedule of  Photogen Technologies, Inc.


                                       16

<PAGE>

                                                           EXHIBIT 10.1

                                  RESEARCH AGREEMENT

     THIS RESEARCH AGREEMENT ("Agreement") is made effective as of October 1,
1998 by and between Photogen, Inc., a Tennessee corporation with offices in
Knoxville, Tennessee (hereinafter referred to as "Sponsor"), and the Center for
Imaging and Pharmaceutical Research ("CIPR") of The General Hospital
Corporation, a Massachusetts corporation (doing business as "Massachusetts
General Hospital"), with offices on Fruit St. in Boston, Massachusetts 02114
(hereinafter collectively referred to as "General") and joined into by each
person engaged by General as an Investigator to the extent indicated in Section
20 of this Agreement.  Sponsor and General are collectively referred to as the
"Parties."

                                     WITNESSETH:

     WHEREAS, the research project contemplated by this Agreement is of mutual
interest and benefit to the Sponsor and General, and will further the
instructional, medical, and research objectives of General and the research and
development objectives of the Sponsor.

     NOW THEREFORE, in consideration of the mutual covenants contained herein,
the Parties hereto agree as follows:

1.   THE PROJECT.  General, through the Principal Investigator (as defined
     below) agrees to use its best efforts to perform in a timely and
     expeditious manner one or more research projects pursuant and limited to
     one or more protocols agreed to between the Parties (the "Project").  The
     first phase of the Project will consist of research pursuant to the terms
     of the protocol dated October 1, 1998 entitled "Combination of Two-Photon
     Excitation Photodynamic Therapy (TPE-PDT) with Advanced Tumor Imaging
     Technology for the Treatment of Lung and Prostate Cancer" between the
     Sponsor and General which has been separately delivered and acknowledged by
     the Parties ("Protocol-1").  Additional phases of the Project will be
     conducted pursuant to mutually agreed upon protocols which shall be subject
     in all respects to this Agreement and shall be designated by consecutive
     numbers (e.g., Protocol-2, Protocol-3, etc.). Revised budgets shall be
     mutually agreed for such additional protocols and shall form the basis for
     an amendment to this Agreement  The Project will be conducted under the
     direction of Gerald L. Wolf, Ph.D., M.D. ("Principal Investigator").
     General shall provide personnel, working under the Principal Investigator's
     supervision, (who, together with the 

                                                                               1

<PAGE>

     Principal Investigator, are referred to as the "Investigators"), 
     facilities, and resources as required to accomplish the work necessary 
     to complete the Project in accordance with Protocol-1 and any subsequent 
     protocols agreed to between the Parties.

2.   TERM.  The term of this Agreement and the Project shall be from October 1,
     1998 through September 30, 2003, unless sooner terminated in accordance
     with the terms hereof.

3.   PAYMENT.  The total cost to the Sponsor for the work described in
     Protocol-1 will not exceed $225,000.  The cost for subsequent work pursuant
     to other protocols will be agreed upon by the Parties.  Payments during the
     first year shall be made to General by the Sponsor according to the
     following schedule:

<TABLE>
<CAPTION>
               Amount         Date
               ------         ----
               <S>       <C>
               $50,000   October 1, 1998
               $50,000   By December 1, 1998
               $50,000   By March 1, 1999
               $74,008   By June 1, 1999
</TABLE>

     Checks shall be made payable to "The General Hospital Corporation" and 
     shall be mailed to the following address:

               Financial Director, Grants and Contracts
               Research Finance
               Massachusetts General Hospital
               Thirteenth Street, Building 149, Suite 1115
               Charlestown, MA 02129

     All funds provided by Sponsor under this Agreement may be used at the
     discretion of General in support of the work for the Project.  Any changes
     to the above payment schedule must be agreed to in writing by the Parties.

                                                                               2

<PAGE>

4.   TERMINATION.  This Agreement and the Project may be terminated as set forth
     below, in which case Sponsor's payment obligations will be adjusted through
     the date of termination:

     a.   In the event that either Party defaults in the due performance of its
          respective obligations under this Agreement, or in the event that any
          representation or warranty by either Party in this Agreement or in the
          documentation or data produced through the Project proves to be
          materially false or misleading, and such default or breach is not
          cured within thirty (30) days after written notice by the other Party,
          then the non-defaulting Party may elect to terminate the Project and
          this Agreement by giving written notice to the defaulting Party, and
          this Agreement shall terminate upon the defaulting Party's receipt of
          said notice.

     b.   General shall promptly advise Sponsor if for any reason Dr. Wolf
          cannot be available as the Principal Investigator.  If the Parties
          cannot agree on a qualified scientist as a replacement, Sponsor may
          terminate the Project and this Agreement on the 30th day after
          delivery of written notice to General.

     c.   Notwithstanding anything in this Agreement to the contrary, either
          Party may terminate this Agreement, with or without cause and without
          liability, on 90 days' prior written notice to the other Party; in
          which event this Agreement and the Project shall terminate on the 90th
          day after delivery of such notice. In the event of such termination,
          Sponsor shall have an obligation to continue for up to four (4) months
          beyond such written notification, salary support at the pretermination
          level of all Ph.D. or M.D. personnel who have been committed to the
          Project on half-time or greater basis, provided General uses
          reasonable efforts to reduce such costs to Sponsor.

     d.   The Parties recognize that the results of any particular research
          project cannot be guaranteed even through the use of General's best
          efforts; therefore, it is specifically agreed that the failure of
          General to achieve specific research results or to reach specific
          research milestones shall not constitute a default or breach of this
          Agreement.  Further, the Parties agree that obligations under Sections
          5, 6, 7, 9, 10, 12, 13, 14 and 19 survive any termination of this
          Agreement or the Project.

                                                                              3

<PAGE>

5.   EQUIPMENT.  Title to any equipment purchased or manufactured by General in
     the course of the research conducted under this Agreement or with the use
     of funds provided by Sponsor shall vest in General.

6.   PROPRIETARY INFORMATION OF THE PARTIES.

     a.   General and Sponsor recognize that the conduct of the Project may
          involve the exchange and/or development or discovery of proprietary
          information, including Inventions (as defined in Section 13.a below)
          and other confidential business, technical and scientific information
          or Trade Secrets (defined below).  Accordingly, it is agreed that each
          Party shall use reasonable efforts, no less than those used for its
          own information of similar nature, to retain in confidence all
          proprietary information of the other Party identified as confidential
          at the time of disclosure  and not disclose such information to any
          other person or entity, nor use such information without written
          permission of the Party owning such information, except in accordance
          with the terms of this Agreement. The obligations of this paragraph
          shall be binding upon the parties for a period of 5 years from the
          Effective Date of this Agreement.

     b.   The term "proprietary information" as used herein shall not include
          any information which the recipient clearly shows by appropriate
          documentation:

          (1)  Was at the time of receipt both lawfully and independently known
               to the receiving Party, its agents, or employees;

          (2)  Without breach of this Agreement by the receiving Party has been
               published or is otherwise within the public knowledge or is
               generally known to the public at the time of disclosure;

          (3)  Becomes known or available to the receiving Party without
               restriction from a source other than the disclosing Party,
               provided that such source has an unqualified right to disclose
               such information without restriction;

          (4)  Becomes a part of the public domain after disclosure without
               breach of this Agreement by the receiving Party; or

                                                                              4

<PAGE>

          (5)  Is required by law to be disclosed, in which case the receiving
               Party will give the disclosing Party prompt written notice of the
               required disclosure.  The disclosing Party may, in good faith and
               at its own expense, contest disclosure or seek confidential
               treatment and the receiving Party shall cooperate with the
               disclosing Party in all reasonable respects.

7.   PUBLICATION.

     a.   The Project studies may be worthy of written or oral publication in
          scholarly journals or at meetings.  Such presentation or publication
          shall be jointly authored by the Principal Investigator and Sponsor's
          scientists in accordance with their respective scientific
          contributions to the Project, if applicable (otherwise, by the
          originating person).  Prior to publication, each Party will give the
          other the opportunity to review and comment on any intended public
          disclosure covering the Project, but in no event shall publication be
          permitted without the express written approval of the Party from which
          the results originated in accordance with prevailing academic
          practice.

     b.   In order to give Sponsor an opportunity to protect against loss of
          confidentiality or patent rights as a result of publication, the
          Principal Investigator and/or General shall submit copies of drafts of
          any article, abstract or presentation on the research conducted in the
          Project written by any Investigator to Sponsor for review and comment
          at least thirty (30) days prior to the anticipated date of submission
          for publication or presentation.  In the absence of Sponsor's notice
          to the contrary, General shall be free to submit such drafts for
          publication or presentation. If Sponsor notifies General in writing
          within such 30 day period that it needs additional time to seek patent
          protection for the information, then General and the Investigators, as
          the case may be, agree to defer the submission for publication until
          such patent application has been filed, or an additional 60 days,
          whichever is sooner.  The person seeking to publish the material shall
          make appropriate changes in such material to reflect the Parties'
          reasonable comments concerning patent protection and non-disclosure of
          Sponsor's Trade Secrets (defined below).

                                                                              5

<PAGE>

8.   INDEPENDENT CONTRACTOR.  The Parties' relationship to one another in the
     performance of this Agreement is  that of independent contractors.  The
     Parties are not employees or agents of one another.  Neither Party shall
     have the authority to bind or incur liability for the other except as may
     be expressly authorized in writing.

9.   INDEMNIFICATION.

     a.   Sponsor shall be responsible and shall hold General harmless for any
          injury to persons or damage to property to the extent that such injury
          or damage is caused by the negligence or willful misconduct of
          Sponsor, its employees or staff in carrying out the Project. Sponsor
          will defend, indemnify, and hold harmless General and its trustees,
          employees and staff against any and all actions, suits, claims,
          demands or prosecutions that may be brought or instituted against
          General and/or its trustees, employees and staff based on or arising
          out of the manufacture, use, sale or other distribution of any product
          of Sponsor (or its affiliates or licensees) resulting from the
          Project, except to the extent any such action, suit, claim, demand or
          prosecution is based on the negligence or willful misconduct of
          General and/or its trustees, employees or staff.

     b.   General will defend, indemnify and hold harmless Sponsor and its
          directors, employees and representatives from and against all actions,
          suits, claims, demands or prosecutions that may be brought or
          instituted against any of them to the extent based on the negligence
          or willful misconduct of General and/or its trustees, employees or
          staff.

10.  NEGATION OF WARRANTIES BY GENERAL. Although General will use its best
     efforts in connection with the Project as set forth in Section 1 of this
     Agreement, General makes no warranties, either expressed or implied, as to
     the result of such research or the merchantability or fitness for a
     particular purpose of the research or any product arising out of the
     Project.  General shall not be liable for any direct, consequential, or
     other damages suffered by the Sponsor or others which may result from the
     use of any product arising out of the Project (except to the extent set
     forth in Section 9, above).

                                                                              6

<PAGE>

11.  KEY PERSONNEL.  Gerald L. Wolf, Ph.D., M.D., Principal Investigator, is
     considered to be essential to the Project.  Substitutions for or
     substantial changes in his level effort or participation will not be made
     without the prior written approval of Sponsor.  Each Party will obtain
     agreements from those of its employees, independent contractors,
     consultants and similar persons involved in the Project (in the case of
     General, all Investigators) causing such third parties to be bound by the
     provisions of Sections 6, 7, 12 and 13 hereof.

12.  INTELLECTUAL PROPERTY RIGHTS OF THE PARTIES.  Neither Party shall have any
     claim by virtue of this Agreement or the Project to any right, title or
     interest in any Invention, Trade Secret or Patent Rights (defined below) or
     any other intellectual property rights (a) issued to, owned or controlled
     by the other Party prior to the date hereof, or (b) after the date hereof
     except any new Inventions, Trade Secrets or Patent Rights conceived and
     reduced to practice, constructively or actually in the performance of the
     Project and as specifically set forth in Section 13 below.

13.  INVENTIONS AND PATENT RIGHTS.

     a.   The term "Invention" means a patentable discovery or invention
          conceived and reduced to practice, constructively or actually in the
          performance of the Project, including any novel process, method,
          formula, machine, manufacture, composition of matter and technology.
          The term "Sponsor Trade Secret" means non-patented know-how,
          compositions, protocols, formulas, processes and techniques,
          discoveries, machines, ideas, compilations of information, computer
          programs (including software and data used in all such programs),
          drawings, specifications and technical information owned or developed
          by Sponsor or its employees.  The term "Patent Rights" means patent
          applications and patent disclosures claiming an Invention, together
          with all letters patent, reissuances, continuations, divisionals,
          those claims in any continuations-in-part of any patent application
          which claim an Invention described in said patent application,
          revisions, extensions, and reexaminations thereof.

     b.   Inventions, Patent Rights and Sponsor Trade Secrets arising out of
          the Project during the term of this Agreement and for a period of 12
          months thereafter shall be owned as follows:

                                                                              7

<PAGE>

          (1)  General will own all such Inventions it, the Principal
               Investigator or any other General Investigator independently
               conceives (a "General Invention") and all corresponding Patent
               Rights, subject to the license if Sponsor exercises its option
               described in paragraph 13.f below;

          (2)  General and Sponsor will jointly own all such Inventions jointly
               conceived by General, the Principal Investigator or any other
               Investigator together with Sponsor (a "Joint Invention") and all
               corresponding Patent Rights, subject to the license if Sponsor
               exercises its option described in paragraph 13.f below; and

          (3)  Sponsor will own all Inventions and Sponsor Trade Secrets Sponsor
               independently conceives or owns and all corresponding Patent
               Rights.

     c.   With respect to General Inventions, General will use reasonable
          efforts, consistent with the practices of the Office of Technology
          Affairs to cause all Investigators to report such Invention and assign
          all of their right, title and interest therein to General; and with
          respect to Joint Inventions, the Sponsor will cause its personnel and
          General will use reasonable efforts to cause each Investigator to
          report such Invention and assign all of their right, title and
          interest therein to Sponsor and General jointly.  Sponsor and General
          shall promptly advise the other in writing of each General Invention
          or Joint Invention and shall cause their Investigators and personnel,
          as applicable, to maintain current and reasonably detailed records (in
          accordance with customary academic research practice) as to possible
          General and Joint Inventions, which shall be open to inspection by the
          other Party with reasonable advance notice.  The Parties shall discuss
          for up to 90 days after the date an Invention is disclosed by one
          Party to the other Party whether patent applications pertaining to
          such General or Joint Invention should be filed and in which
          countries.  All of the foregoing shall constitute proprietary
          information subject to Section 6, above.

     d.   If both Parties agree that patent applications should be filed, patent
          applications relating to General Inventions shall be filed by General
          and patent applications relating to Joint Inventions shall be filed as
          agreed by the Parties.  If within such 90-day period one Party states
          in writing that it 

                                                                              8

<PAGE>

          is not interested in filing patent applications on either a General 
          Invention or a Joint Invention (a "declining Party") and the other 
          Party (a "prosecuting Party") is interested in filing such 
          applications, the prosecuting Party shall be free, at its own 
          expense, to file such applications in the name(s) of the parties to 
          whom the Inventors would be obliged to assign and the declining 
          Party shall render the prosecuting party, at the prosecuting 
          Party's expense, all necessary assistance in order to facilitate 
          filing of such Joint Inventions..  All prosecution costs pertaining 
          to patent applications covering a General or Joint Invention that 
          are filed by mutual agreement of the Parties (including 
          preparation, filing, prosecution, issuance and maintenance costs) 
          shall be borne by Sponsor. General shall select counsel for such 
          General or Joint Inventions, subject to the approval of the 
          Sponsor, which approval shall not be unreasonably withheld. General 
          agrees to cause Patent counsel selected by it to promptly provide 
          Sponsor with copies of all documents relating to the patent 
          application, to be available to Sponsor for consultation and 
          suggestions and for Sponsor to be otherwise fully informed 
          regarding all matters relating to the patent application and its 
          prosecution.

     e.   The Parties agree to cooperate and work together in good faith to
          effect the provisions of this Section 13.  Each Party agrees to
          execute and deliver (or cause to be executed and delivered) all
          assignments and other instruments of transfer necessary to effect the
          provisions of this Section 13.

     f.   As to all Patent Rights relating to a General Invention or a Joint
          Invention, General hereby grants Sponsor for the twelve (12) months
          next following the first filing of patent applications in any
          jurisdiction relating to such Invention the irrevocable first option
          to obtain a license granting Sponsor the following rights and
          containing the following terms:

          (1)  Sponsor shall for the life of all patent rights, unless sooner
               terminated by either party in accordance with the terms of such a
               license agreement, have a world-wide, exclusive (subject only to
               paragraph (h) below), royalty-bearing license granting Sponsor
               the right to use the Invention, to design, make, have made,
               market lease, offer for sale, sell and/or distribute products
               embodying or produced through the use of the Invention, itself or
               through third parties by way of sublicense, and in all other
               respects to use, sublicense, and commercialize the Invention and
               any such product 

                                                                              9

<PAGE>

               under all Patent Rights.  Pursuant to such license, Sponsor 
               shall use reasonable efforts to commercialize such products in 
               accordance with time limits and objectives consistent with the 
               market potential of the Invention and the capacity and 
               resources of the Sponsor.  Sponsor will be free to design the 
               products, and select pricing and marketing methods in its 
               discretion.

          (2)  Sponsor shall pay General a reasonable royalty of an amount
               equal to the greater of $10,000 per year  or up to 5% of
               Sponsor's annual net sales revenues for such Invention (gross
               revenues actually received by Sponsor from sales of the specific
               product which results from the General or Joint Invention, net of
               customary cash and trade discounts, returns and allowances);
               provided, that Sponsor will pay the minimum $10,000 annual
               royalty beginning in the fifth year after the license is executed
               or sooner if Sponsor has net sales revenues before the fifth
               year. The applicable royalty rate shall be agreed upon by the
               parties within 30 days of Sponsor's exercise of the option.

          (3)  Sponsor will use all reasonable efforts to defend all challenges
               to Patent Rights, including alleged infringements, and General
               will cooperate with Sponsor in that regard.

          (4)  Sponsor may abandon the license at any time by express written
               notice to General, in which case all rights will revert back to
               General and all license and royalty obligations on Sponsor shall
               terminate.

          (5)  Product liability indemnification and insurance requirements
               which are reasonably acceptable to General's liability insurance
               carrier.

          (6)  In addition to the foregoing, any other commercially reasonable
               terms standard for agreements between universities and industry
               not inconsistent with the foregoing.

          Sponsor may exercise this option by giving written notice of exercise
          to General during said twelve-month period.  Thereafter, General and
          Sponsor each agree to negotiate in good faith and to enter into a
          license agreement incorporating the foregoing terms within six (6)
          months after 

                                                                              10

<PAGE>

          notice of exercise.  If Sponsor elects not to give written notice 
          of exercise during such 12-month period, General may grant a 
          license to such Invention and Patent Rights to any other person or 
          entity.

     g.   General represents and warrants to Sponsor that, to the best of its
          knowledge, based on a diligent review of its documents, as of the
          effective date hereof, General is not prohibited or prevented from
          granting such a license to Sponsor.  General agrees, during the term
          of the Project hereunder, not to enter into an agreement with any
          third party to fund Principal Investigator to conduct the Project and
          to use reasonable care not to enter into an agreement with a third
          party under terms that will prevent General from granting to the
          Sponsor the license contemplated under subsection (f) above.  General
          will monitor the activities of the Principal Investigator in order to
          avoid conflicting activities that would prevent General from granting
          such a License.

     h.   It is understood that General will reserve the right to use any
          General Invention or Joint Invention only for research, clinical and
          educational purposes, and that if federal funding supports the
          Invention, Sponsor's license will be subject to the rights, conditions
          and limitations imposed by U.S. law including without limitation the
          royalty-free non-exclusive license granted to the U.S. government (see
          35 USC sec. 202 et. seq. and regulations pertaining thereto). General
          represents, warrants and agrees with Sponsor that no federal funds
          will be used to support the Project as of the date of this Agreement
          and, if any such funds will be used in the future, General will give
          Sponsor at least 120 days' prior written notice of General's
          acceptance of federal funds..

14.  DATA.  The original data generated as a result of the Project shall be
     provided to Sponsor promptly, and Sponsor may use such data as it deems
     advisable, including for purposes of publication, presentation to the
     scientific community, seeking regulatory approvals or for any other
     purposes, except to the extent that such use infringes a patent owned or
     controlled by General not licensed to Sponsor. However, this provision
     shall not be interpreted to restrict General's publication rights under
     Section 7 of this Agreement.  The Principal Investigator shall report to
     the Sponsor every 90 days on the status and results of the Project. The
     Principal Investigator shall keep reasonable and customary records of the
     Project and related data sufficient for Sponsor's regulatory approval
     activities and shall make such records available to Sponsor on reasonable
     request.

                                                                              11

<PAGE>

15.  PUBLICITY.  Neither Party shall use the name of the other Party or of any
     Investigator in any advertising or promotional material without the prior
     written approval of the other Party.  The foregoing notwithstanding, (a)
     General and the Principal Investigator shall acknowledge Sponsor's support
     of the Project in their respective reports and publications, (b) Sponsor
     may disclose the existence and describe the terms of, and may file a copy
     of this Agreement (redacted to the extent Sponsor deems appropriate to
     ensure confidentiality) as an exhibit to its press releases, reports and
     governmental filings, including reports and filings with the U.S.
     Securities and Exchange Commission and relevant foreign government
     authorities; and (c) Sponsor may make reference to technical publications
     by the Principal Investigator or his co-authors.  Any publicity or
     governmental filings of this Agreement pursuant to this Section 15 shall
     describe the relationship of the Parties accurately and appropriately,
     including the fact that CIPR is a division of Massachusetts General
     Hospital and the same are affiliated with Harvard Medical School.

16.  APPROVALS.  General represents and warrants to Sponsor that this Agreement
     and the Project have received the required approvals within Massachusetts
     General Hospital and that no other approvals are required to authorize the
     execution and effectiveness of this Agreement.  Sponsor represents and
     warrants to General that this Agreement and the Project have been approved
     by its Board of Directors.

17.  MODIFICATION.  This Agreement and the Protocol constitute the sole, full,
     and complete agreement by and between the Parties concerning the subject
     matter hereof and supersedes and replaces all prior agreements, discussions
     and representations (including the July 9, 1998 and July 10, 1998
     correspondence between the Parties and the Memorandum of Understanding
     referred to therein).  No amendments of any provision of this Agreement
     shall be valid unless reduced in writing and signed by the Parties and all
     waivers must be in writing and signed by the Party against which the waiver
     is to be enforced.

18.  NOTICES AND OTHER COMMUNICATIONS. With the exception of Sponsor's payments
     under Section 3, all notices and other communications between the Parties
     in connection with this Agreement shall be in writing and deemed
     sufficiently given when delivered by messenger or overnight courier
     providing for receipted delivery, transmitted by fax with confirmation of

                                                                              12

<PAGE>

     transmission or sent by prepaid United States mail or other recognized
     carrier, addressed as follows:

     a.   If to Sponsor:

          John Smolik
          President, CEO
          Photogen, Inc.
          7327 Oak Ridge highway
          Knoxville, TN 37931
          Fax number:  (423) 769-4013

     b.   If to General:

          Director, Office of Technology Affairs
          Massachusetts General Hospital
          13th Street, Building 149
          Suite 1101
          Charleston, MA  02129
          Fax number:  (617) 726-1668

     Either Party may change its address by written notice given to the other
     Party. It is specifically provided that this notice provision shall not be
     construed in such a manner as to abrogate the provisions of Section 16
     regarding modification of this Agreement.

19.  GOVERNING LAW; CHOICE OF FORUM. This Agreement is made and entered into the
     State of Massachusetts and its validity and interpretation and the legal
     relations of the Parties shall be governed by the internal laws of the
     State of Massachusetts without regard to its provisions on conflict of
     laws.  Each Party submits to the exclusive jurisdiction of any state or
     federal court sitting in Chicago, Illinois in any action or proceeding
     relating to this Agreement and each Party agrees that all claims in respect
     of the action or proceeding may be heard and determined only in any such
     court.  Each of such Parties waives any defense of inconvenient forum to
     the maintenance of any action or proceeding so brought and waives any bond,
     surety, or other security that might be required of any other Party with
     respect thereto.

                                                                              13

<PAGE>

20.   INVESTIGATORS JOIN INTO AGREEMENT.  Each person engaged by General as an
     Investigator hereby joins into this Agreement and agrees to become bound to
     all terms applicable to him or her and in particular, Sections as 1, 7(b)
     and 13.

THIS AGREEMENT shall not be considered accepted, approved, or otherwise
effective until the signature of each Party is affixed in the space provided
below.

IN WITNESS WHEREOF, signifying their acceptance of and agreement to be bound by
the terms and conditions of this Agreement, the signatures of the Parties are
affixed hereto:

PHOTOGEN, INC.                     THE GENERAL HOSPITAL CORPORATION,
                                   doing business as MASSACHUSETTS
                                   GENERAL HOSPITAL


By: /s/John Smolik                 By: /s/David J. Glass
    ----------------------             ---------------------
       John Smolik                     David J. Glass, Ph.D.
       President, CEO                  Associate Director for Patents
       Photogen, Inc.                  Office of Technology Affairs



Date: 10/12/98                     Date: 10/6/98
      --------------------               --------------------


                     JOINED INTO BY THE FOLLOWING INVESTIGATORS:

                                   Name(s)

Date:        10/7/98                   Gerald L. Wolf
       -----------------------     --------------------------------
Date:
       -----------------------     --------------------------------
Date:
       -----------------------     --------------------------------


<PAGE>

                                                              EXHIBIT 10.2

                                  RESEARCH AGREEMENT


     THIS RESEARCH AGREEMENT ("Agreement") is made effective as of October 1,
1998 by and between Photogen, Inc., a Tennessee corporation with offices in
Knoxville, Tennessee (hereinafter referred to as "Sponsor"), and The
Massachusetts Eye and Ear Infirmary, with offices at 243 Charles St. in Boston,
Massachusetts 02114 (hereinafter referred to as "MEEI").  Sponsor and MEEI are
collectively referred to as the "Parties."

                                     WITNESSETH:

     WHEREAS, the research project contemplated by this Agreement is of mutual
interest and benefit to the Sponsor and MEEI, and will further the
instructional, medical, and research objectives of MEEI and the research and
development objectives of the Sponsor.

     NOW THEREFORE, in consideration of the mutual covenants contained herein,
the Parties hereto agree as follows:

 1.  THE PROJECT.  MEEI agrees to use its best efforts to perform in a timely
     and expeditious manner the research project entitled "Evaluation of
     two-photon excitation (TPE) PDT using rose bengal and BPD-MA as a treatment
     for AMD" (the "Project").  The Project will be conducted under the
     direction of Joan W. Miller, M.D. ("Principal Investigator") pursuant to
     the terms of the protocol dated October 1, 1998 between the Sponsor and
     MEEI which has been separately delivered and acknowledged by the Parties
     (the "Protocol").  MEEI shall provide personnel (who, together with the
     Principal Investigator, are referred to as the "Investigators"),
     facilities, and resources as required to accomplish the work necessary to
     complete the Project in accordance with the Protocol.  The Project shall be
     limited to the scope described in the Protocol.

 2.  TERM.  The term of this Agreement and the Project shall be from October 1,
     1998 through June 30, 1999, or, as extended by mutual written agreement,
     unless sooner terminated in accordance with the terms hereof.

 3.  PAYMENT.  The total cost to the Sponsor for the Project will not exceed
     $160,000 for the work described in the Protocol.  The cost for subsequent
     work pursuant to other protocols or consulting, including but not limited
     to, the design of clinical trials and work with regulatory agencies will be
     agreed upon by the 

                                                                             1

<PAGE>

     Parties and covered by a separate agreement.  Delays caused by third 
     party actions may alter the following payment schedule as mutually 
     agreed upon in writing by the Parties.  Payments during the Project  
     shall be made to MEEI by the Sponsor according to the following schedule:

           AMOUNT             DATE
          -------            ---------------
          $40,000            October 1, 1998
          $40,000            By January 1, 1999
          $40,000            By March 1, 1999
          $40,000            By June 1, 1999


     Checks shall be made payable to:

          Massachusetts Eye and Ear Infirmary

     and shall be mailed to the following address:

          Director, Research Administration
          Massachusetts Eye and Ear Infirmary
          243 Charles Street
          Boston, MA 02114

     All funds provided by Sponsor under this Agreement may be used at the
     discretion of MEEI in support of the work for the Project.  Any changes to
     the above payment schedule must be agreed to in writing by the Parties.

 4.  TERMINATION.  This Agreement and the Project may be terminated as set forth
     below, in which case Sponsor's payment obligations will be adjusted through
     the date of termination:

     a.   In the event that either Party defaults in the due performance of its
          respective obligations under this Agreement, or in the event that any
          representation or warranty by either Party in this Agreement or in the
          documentation or data produced through the Project proves to be
          materially false or misleading, and such default or breach is not
          cured within thirty (30) days after written notice by the other Party,
          then the non-defaulting Party may elect to terminate the Project and
          this Agreement by 

                                                                             2

<PAGE>

          giving written notice to the defaulting Party, and this Agreement 
          shall terminate upon the defaulting Party's receipt of said notice.

     b.   MEEI shall promptly advise Sponsor if for any reason Dr. Miller cannot
          be available as the Principal Investigator.  If the Parties cannot
          agree on a qualified scientist as a replacement, Sponsor may terminate
          the Project and this Agreement on the 30th (thirtieth) day after
          delivery of written notice to MEEI.

     c.   Notwithstanding anything in this Agreement to the contrary, either
          Party may terminate this Agreement, with or without cause and without
          liability, on 90 (ninety) days' prior written notice to the other
          Party; in which event this Agreement and the Project shall terminate
          on the 90th (ninetieth) day after delivery of such notice.  The
          payment schedule shall be adjusted to reflect work completed up to the
          termination date.

     d.   The Parties recognize that the results of any particular research
          project cannot be guaranteed even through the use of MEEI's best
          efforts.  Further, MEEI shall not be held responsible for delays due
          to third party suppliers.  Therefore, it is specifically agreed that
          the failure of MEEI to achieve specific research results shall not
          constitute a default or breach of this Agreement.  Further, the
          Parties agree that obligations under Sections 5, 6, 7, 9, 10, 12, 13,
          14 and 19 survive any termination of this Agreement or the Project.

 5.  EQUIPMENT.  Title to any equipment purchased or manufactured by MEEI in the
     course of the research conducted under this Agreement or with the use of
     funds provided by Sponsor shall vest in MEEI.

 6.  PROPRIETARY INFORMATION OF THE PARTIES.

     a.   MEEI and Sponsor recognize that the conduct of the Project may require
          the exchange of proprietary information, identified as such in
          writing, including Inventions (as defined in Section 13.a below) and
          other confidential business, technical and scientific information,
          between the Parties. Accordingly, it is agreed that each receiving
          Party shall retain in confidence all proprietary information of the
          other Party and shall not disclose such information to any other
          person or entity, nor use such information without written permission
          of the Party owning such information, except in accordance with the
          terms of this Agreement.

                                                                             3

<PAGE>

     b.   The term "proprietary information" as used herein shall not include
          any information which the recipient clearly shows by appropriate
          documentation:

          (1)  Was at the time of receipt both lawfully and independently known
               to the receiving Party, its agents, or employees;

          (2)  Without breach of this Agreement by the receiving Party has been
               published or is otherwise within the public knowledge or is
               generally known to the public at the time of disclosure;

          (3)  Becomes known or available to the receiving Party without
               restriction from a source other than the disclosing Party,
               provided that such source has an unqualified right to disclose
               such information without restriction;

          (4)  Becomes a part of the public domain after disclosure without
               breach of this Agreement by the receiving Party; or

          (5)  Is required by law to be disclosed, in which case the receiving
               Party will give the disclosing Party prompt written notice of the
               required disclosure.  The disclosing Party may, in good faith and
               at its own expense, contest disclosure or seek confidential
               treatment and the receiving Party shall cooperate with the
               disclosing Party in all reasonable respects.

 7.  PUBLICATION.

     a.   The Project studies may be worthy of written or oral publication in
          scholarly journals or at meetings.  Such presentation or publication
          shall be jointly authored by the Principal Investigator and Sponsor's
          scientists in accordance with their respective scientific
          contributions to the Project, if applicable (otherwise, by the
          originating person).  Prior to publication, each Party will give the
          other the opportunity to review and comment on any intended public
          disclosure covering the Project, but in no event shall such
          publication be permitted without the express written approval of the
          Party from which the results originated.

                                                                             4

<PAGE>

     b.   In order to give Sponsor an opportunity to protect against loss of
          confidentiality or patent rights as a result of publication, the
          Principal Investigator and/or MEEI shall submit copies of drafts of
          any article, or presentation on the research written by any
          Investigator resulting from work on this Project to Sponsor for review
          and comment at least thirty (30) days and in the case of abstracts
          seven (7) business days prior to the anticipated date of submission
          for publication or presentation.  If Sponsor, in its reasonable
          judgment, determines that it needs additional time to seek patent
          protection for the information, then MEEI and the Investigators, as
          the case may be, agree to defer the submission for publication for an
          additional period as determined by written advice of Sponsor's patent
          counsel; provided that MEEI's patent counsel agrees, which agreement
          shall not be unreasonably withheld.  The person seeking to publish the
          material shall make  appropriate changes in such material to reflect
          the Parties' reasonable comments concerning patent protection and
          non-disclosure of Trade Secrets (defined below).

 8.  INDEPENDENT CONTRACTOR.  The Parties' relationship to one another in the
     performance of this Agreement is that of independent contractors.  The
     Parties are not employees or agents of one another.  Neither Party shall
     have the authority to bind or incur liability for the other except as may
     be expressly authorized in writing.

 9.  INDEMNIFICATION.

     a.   Sponsor will defend, indemnify, and hold harmless MEEI and its
          trustees, employees and staff against any and all actions, suits,
          claims, demands or prosecutions that may be brought or instituted
          against MEEI and/or its trustees, employees and staff based on or
          arising out of the manufacture, use, sale or other distribution of any
          product of Sponsor (or its affiliates or licensees) resulting from the
          Project, except to the extent any such action, suit, claim, demand or
          prosecution is based on the negligence or willful misconduct of MEEI
          and/or its trustees, employees or staff.

     b.   MEEI will defend, indemnify and hold harmless Sponsor and its
          directors, employees and representatives from and against all actions,
          suits, claims, demands or prosecutions that may be brought or
          instituted against any of them based on the negligence or willful
          misconduct of MEEI and/or its trustees, employees or staff.

                                                                             5

<PAGE>

10.  NEGATION OF WARRANTIES BY MEEI. Although MEEI will use its best efforts in
     connection with the Project as set forth in Section 1 of this Agreement,
     MEEI makes no warranties, either expressed or implied, as to the result of
     such research or the merchantability or fitness for a particular purpose of
     the research or any product arising out of the Project.  MEEI shall not be
     liable for any direct, consequential, or other damages suffered by the
     Sponsor or others which may result from the use of any product arising out
     of the Project (except to the extent set forth in Section 9, above).

11.  KEY PERSONNEL.  Joan W. Miller, M.D., Principal Investigator, is considered
     to be essential to the Project.  Substitutions for or substantial changes
     in her level effort or participation will not be made without the prior
     written approval of Sponsor.  Each Party will obtain agreements from its
     employees, independent contractors, consultants and similar persons causing
     such third parties to be bound by the provisions of Sections 6, 7, 12 and
     13 hereof.

12.  INTELLECTUAL PROPERTY RIGHTS OF THE PARTIES.  Neither Party shall have any
     claim by virtue of this Agreement or the Project to any right, title or
     interest in any Invention, Trade Secret or Patent Rights (defined below) or
     any other intellectual property rights issued to, owned or controlled by
     the other Party (a) prior to the date hereof, or (b) after the date hereof
     except a New Invention, Trade Secrets or Patent Rights arising out of the
     Project and as specifically set forth in Section 13 below.

13.  INVENTIONS AND PATENT RIGHTS.

     a.   The term "Invention" means a patentable discovery or invention,
          including processes, methods, formulas and technologies.  The term
          "Trade Secret" means non-patented trade secrets, know-how,
          compositions, protocols, processes and techniques, discoveries,
          machines, ideas, computer programs (including software and data used
          in all such programs), drawings, specifications and technical
          information.  The term "Patent Rights" means patent applications and
          patent disclosures related to an Invention, together with all letters
          patent, reissuances, continuations, continuations-in-part, revisions,
          extensions, and reexaminations thereof.

     b.   Inventions, related Patent Rights and Trade Secrets arising directly
          from work on this Project during the term of this Agreement and for a
          period of 12 months thereafter shall be owned as follows:

                                                                             6

<PAGE>

          (1)  MEEI will own all such Inventions or Trade Secrets it, the
               Principal Investigator or any other Investigator independently
               conceives (a "MEEI Invention") and all related Patent Rights,
               subject to the license if Sponsor exercises its option described
               in paragraph 13.f below;

          (2)  MEEI and Sponsor will jointly own all such Inventions jointly
               conceived by MEEI, or the Principal Investigator or any other
               Investigator together with Sponsor (a "Joint Invention") and all
               related Patent Rights, subject to the license if Sponsor
               exercises its option described in paragraph 13.f below; and

          (3)  Sponsor will own (A) all Inventions and Trade Secrets Sponsor
               independently conceives and all related Patent Rights, and (B)
               all MEEI or Joint Inventions and related Patent Rights, described
               in the foregoing clauses (1) or (2), as to which MEEI declines to
               prosecute a patent application in accordance with paragraph (d),
               below (collectively, a "Sponsor Invention").

          (4)  All Trade Secrets, arising from work on this Project, related to
               a MEEI Invention or a Joint Invention shall be subject to the
               license if Sponsor exercises its option described in paragraph
               13.f below.

     c.   With respect to MEEI Inventions and related Trade Secrets, MEEI will
          cause all Investigators to report such Invention and related Trade
          Secrets and assign all of their right, title and interest therein to
          MEEI; with respect to Joint Inventions and related Trade Secrets, the
          Sponsor will cause its personnel and MEEI will cause each Investigator
          to report such Invention and related Trade Secrets and assign all of
          their right, title and interest therein to Sponsor and MEEI jointly;
          and with respect to Sponsor Inventions and related Trade Secrets, all
          Investigators shall report such Invention and related Trade Secrets
          and assign all of their right, title and interest therein (if any) to
          Sponsor.  Sponsor and MEEI shall promptly advise the other in writing
          of each MEEI Invention or Joint Invention and related Trade Secrets
          and shall cause their Investigators and personnel, as applicable, to
          maintain current and reasonably detailed records as to possible MEEI
          and Joint Inventions and Trade Secrets, which shall be open to
          inspection by the other Party.  The Parties shall discuss for up to 90
          days whether patent applications pertaining to such MEEI or Joint
          Invention should be filed and in which countries.  All of the
          foregoing shall constitute proprietary information subject to 
          Section 6, above.

                                                                             7

<PAGE>

     d.   If either Party determines that patent applications should be filed,
          patent applications relating to MEEI Inventions shall be filed by MEEI
          and patent applications relating to Joint Inventions shall be filed as
          agreed upon by the Parties.  If within 90 days after the date on which
          such an Invention was disclosed by one Party to the other Party, one
          Party states in writing that it is not interested in filing patent
          applications on either an MEEI Invention or a Joint Invention or fails
          to state in writing that it desires to file patent applications (a
          "declining Party") and the other Party (a "prosecuting Party") is
          interested in filing such applications, the declining Party, if the
          Sponsor, shall assign all of its Patent Rights in such Invention to
          the prosecuting Party and the prosecuting Party shall be free to file
          and prosecute, all Patent Rights in the Invention in the name of the
          appropriate inventor, for its own account (including the right to
          license the same to any third party) and at its own expense.  If the
          declining Party is MEEI, then MEEI agrees to file and prosecute  at
          Sponsor expense, all patent rights in the Invention in the name of the
          appropriate Inventor for its own account, subject, however, to
          providing Sponsor with the option to obtain a license as contemplated
          in Section 13.f below.  All prosecution costs pertaining to patent
          applications covering an MEEI or Joint Invention that are filed by
          mutual agreement of the Parties or by MEEI when it is the declining
          Party (including preparation, filing, prosecution, issuance and
          maintenance costs) shall be borne by Sponsor, and Sponsor shall have
          the right to select patent counsel.

     e.   The Parties agree to cooperate and work together in good faith to
          effect the provisions of this Section 13.  Each Party agrees to take
          such actions as may be necessary to effect the provisions of this
          Section 13.

     f.   As to all Patent Rights relating to a MEEI Invention or a Joint
          Invention, MEEI hereby grants Sponsor for the twelve (12) months next
          following the first filing of patent applications in any jurisdiction
          relating to such Invention the irrevocable first option to obtain a
          license.  Upon exercise of this option, the parties shall negotiate in
          good faith a license agreement containing terms that are commercially
          reasonable, such license to include, but not be limited to the
          following:

          (1)  Sponsor shall have a world-wide, exclusive (subject only to
               paragraph (h) below), royalty-bearing license granting Sponsor
               the right to use the Invention, to design, make, have made,
               market lease, offer for sale, sell and/or distribute products
               embodying or 

                                                                             8

<PAGE>

               produced through the use of the Invention, itself or
               through third parties by way of sublicense, and in all other
               respects to use, sublicense, and commercialize the Invention and
               any such product under all Patent Rights.  Pursuant to such
               license, Sponsor shall use reasonable efforts to commercialize
               such products and will be free to design the products, and select
               pricing and marketing methods in its discretion; but Sponsor
               makes no representation, warranty or covenant as to whether any
               such product can be developed, manufactured or sold, or as to the
               revenues, if any, resulting from sales.

          (2)  Sponsor shall pay MEEI a reasonable licensing fee, and a
               reasonable royalty of an amount not less than $10,000 per year.

          (3)  Sponsor will defend all challenges to Patent Rights and MEEI will
               cooperate with Sponsor in that regard.

          (4)  Sponsor may abandon the license at any time by express written
               notice to MEEI, in which case all rights will revert back to MEEI
               and all license and royalty obligations on Sponsor shall
               terminate.

          (5)  Product liability indemnification and insurance requirements
               which are reasonably acceptable to MEEI's liability insurance
               carrier.

          (6)  In addition to the foregoing, any other commercially reasonable
               terms standard for agreements between universities and industry
               not inconsistent with the foregoing.

          Sponsor may exercise this option by giving written notice of exercise
          to MEEI during said twelve-month period.  Thereafter, MEEI and Sponsor
          each agree to negotiate in good faith and to enter into a license
          agreement incorporating the foregoing terms within six (6) months
          after notice of exercise.  If Sponsor elects not to give written
          notice of exercise during such 12-month period (but not otherwise),
          MEEI may grant a license to such Invention and Patent Rights to any
          other person or entity.

     g.   MEEI represents and warrants that MEEI is not now and will not in the
          future be prohibited or prevented from granting such a license to
          Sponsor pursuant to the terms of Section 13.f above.

                                                                             9

<PAGE>

     h.   It is understood that MEEI will reserve the right beyond rights
          described above in Sections 13.a to and including 13.g to use any MEEI
          Invention or Joint Invention only for research, clinical and
          educational purposes, and that if federal funding supports the
          Invention, Sponsor's license will be subject to the rights, conditions
          and limitations imposed by U.S. law including without limitation the
          royalty-free non-exclusive license granted to the U.S. government (see
          35 USC sec. 202 et. seq. and regulations pertaining thereto). MEEI
          represents, warrants and agrees with Sponsor that no federal funds
          will be used to support the Project without providing Sponsor with one
          hundred twenty (120) days prior written notice.

14.  DATA.  The original data generated as a result of the Project shall be
     retained or under the control of MEEI; however, copies shall be provided to
     Sponsor promptly, and Sponsor may use such data as it deems advisable,
     including for purposes of publication, presentation to the scientific
     community, seeking regulatory approvals or for any other purposes. However,
     this provision shall not be interpreted to restrict MEEI's publication
     rights under Section 7 of this Agreement.  The Principal Investigator shall
     report to the Sponsor every 90 days on the status and results of the
     Project.  The Principal Investigator shall keep reasonable and customary
     records of the Project and related data sufficient for Sponsor's regulatory
     approval activities and shall make such records available to Sponsor on
     reasonable request.

15.  PUBLICITY.  Neither Party shall use the name of the other Party or of any
     Investigator in any advertising or promotional material without the prior
     written approval of the other Party.  The foregoing notwithstanding, (a)
     MEEI and the Principal Investigator shall acknowledge Sponsor's support of
     the Project in their respective reports and publications, (b) Sponsor may
     disclose the existence and describe the terms of, and may file a copy of
     this Agreement (redacted to the extent Sponsor deems appropriate to ensure
     confidentiality) as an exhibit to its press releases, reports and
     governmental filings, including reports and filings with the U.S.
     Securities and Exchange Commission and relevant foreign government
     authorities; and (c) Sponsor may make reference to technical publications
     by the Principal Investigator or his co-authors.  Any publicity or
     governmental filings of this Agreement pursuant to this Section 15 shall
     describe the relationship of the Parties accurately and appropriately,
     including the fact that MEEI is affiliated with Harvard Medical School.


                                                                             10

<PAGE>

16.  APPROVALS.  MEEI represents and warrants to Sponsor that this Agreement and
     the Project have been approved by the proper governing authorities of MEEI.
     Sponsor represents and warrants to MEEI that this Agreement and the Project
     have been approved by its Board of Directors.

17.  MODIFICATION.  This Agreement and the Protocol constitute the sole, full,
     and complete agreement by and between the Parties concerning the subject
     matter hereof and supersedes and replaces all prior agreements, discussions
     and representations between the Parties.  No amendments of any provision of
     this Agreement shall be valid unless reduced in writing and signed by the
     Parties and all waivers must be in writing and signed by the Party against
     which the waiver is to be enforced.

18.  NOTICES AND OTHER COMMUNICATIONS. With the exception of Sponsor's payments
     under Section 3, all notices and other communications between the Parties
     in connection with this Agreement shall be in writing and deemed
     sufficiently given when delivered by messenger or overnight courier
     providing for receipted delivery, transmitted by fax with confirmation of
     transmission or sent by prepaid United States mail or other recognized
     carrier, addressed as follows:

     a.   If to Sponsor:

          John Smolik
          President, CEO
          PHOTOGEN, Inc.
          7327 Oak Ridge highway
          Knoxville, TN 37931
          Fax number:  (423) 769-4013

     b.   If to MEEI:

          F. Curtis Smith, President
          The Massachusetts Eye and Ear Infirmary
          243 Charles Street
          Boston, MA 02114
          Fax number:  617-573-3091

                                                                             11

<PAGE>

     Either Party may change its address by written notice given to the other
     Party. It is specifically provided that this notice provision shall not be
     construed in such a manner as to abrogate the provisions of Section 16
     regarding modification of this Agreement.

19.  GOVERNING LAW; CHOICE OF FORUM. This Agreement is made and entered into the
     State of Tennessee and its validity and interpretation and the legal
     relations of the Parties shall be governed by the internal laws of the
     State of Tennessee without regard to its provisions on conflict of laws.
     Each Party submits to the exclusive jurisdiction of any state or federal
     court sitting in Chicago, Illinois in any action or proceeding relating to
     this Agreement and each Party agrees that all claims in respect of the
     action or proceeding may be heard and determined only in any such court.
     Each of such Parties waives any defense of inconvenient forum to the
     maintenance of any action or proceeding so brought and waives any bond,
     surety, or other security that might be required of any other Party with
     respect thereto.

THIS AGREEMENT shall not be considered accepted, approved, or otherwise
effective until the signature of each Party is affixed in the space provided
below.

IN WITNESS WHEREOF, signifying their acceptance of and agreement to be bound by
the terms and conditions of this Agreement, the signatures of the Parties are
affixed hereto:


PHOTOGEN, INC.                     MASSACHUSETTS EYE
                                      AND EAR INFIRMARY

By:  /s/John Smolik                By: /s/F. Curtis Smith
     -----------------------           --------------------------
       John Smolik                        F. Curtis Smith
       President, CEO                     President


Date:   10/6/98                    Date:       10/2/98
      ----------------------              ------------------------


<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM 10-QSB
FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 1998, AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               SEP-30-1998
<CASH>                                         443,578
<SECURITIES>                                 6,759,978
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