INHALE THERAPEUTIC SYSTEMS
10-Q, 1998-05-14
PHARMACEUTICAL PREPARATIONS
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                                   UNITED STATES 
                         SECURITIES AND EXCHANGE COMMISSION
                               WASHINGTON,  DC  20549
                                          
                                     FORM 10-Q
                                          
[X]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
     ACT OF 1934.

For the quarterly period ended March 31, 1998

                                        or,
                                          
[ ]  TRANSITION REPORTS PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934.

For the transition period from _________________ to ___________________

                          COMMISSION FILE NUMBER: 0-23556
                                          
                             INHALE THERAPEUTIC SYSTEMS
               (Exact name of registrant as specified in its charter)
                                          
        CALIFORNIA                                      94-3134940         
- -------------------------------              ---------------------------------
(State of other jurisdiction of              (IRS Employer Identification No.)
incorporation or organization)     

                                150 INDUSTRIAL ROAD
                           SAN CARLOS,  CALIFORNIA  94070
                      (Address of principal executive offices)
                                          
                                    650-631-3100
                (Registrant's telephone number, including area code)
                                          
                                   Not applicable                 
- ------------------------------------------------------------------------------
                (Former name, former address and former fiscal year,
                           if changed since last report)


Indicate by check mark whether the registrant (1) has filed all reports required
by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the
preceding 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.
[X] Yes        [  ] No

                                          
                                          
                        APPLICABLE ONLY TO CORPORATE ISSUERS

The number of outstanding shares of the registrant's Common Stock, no par value,
was 15,621,434 as of April 30, 1998.


                                                                  Page 1 of 18

<PAGE>

                             INHALE THERAPEUTIC SYSTEMS
                                       INDEX
                                          
                                          
                                          
<TABLE>
<CAPTION>

PART I: FINANCIAL INFORMATION
- -----------------------------                                                PAGE
<S>                                                                          <C>
Item 1.   Condensed Financial Statements - unaudited . . . . . . . . . . . .   3

          Condensed Balance Sheets - March 31, 1998 and December 31, 1997. .   3

          Condensed Statements of Operations for the three month period
             ended March 31, 1998 and 1997 . . . . . . . . . . . . . . . . .   4
          
          Condensed Statements of Cash Flows for the three month period
             ended March 31, 1998 and 1997 . . . . . . . . . . . . . . . . .   5
          
          Notes to Condensed Financial Statements. . . . . . . . . . . . . .   6
          
Item 2.   Management's Discussion and Analysis of Financial Condition and
             Results of Operations . . . . . . . . . . . . . . . . . . . . .   7
          
          
          
PART II:  OTHER INFORMATION
- ---------------------------

Item 1.   Legal Proceedings. . . . . . . . . . . . . . . . . . . . . . . . .  16

Item 2.   Changes in Securities. . . . . . . . . . . . . . . . . . . . . . .  16

Item 3.   Defaults Upon Senior Securities. . . . . . . . . . . . . . . . . .  16

Item 4.   Submission of Matters to a Vote of Security Holders. . . . . . . .  16

Item 5.   Other Information. . . . . . . . . . . . . . . . . . . . . . . . .  16

Item 6.   Exhibits and Reports on Form 8-K . . . . . . . . . . . . . . . . .  16

          Signatures . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18

</TABLE>

                                                                  Page 2 of 18

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Item 1.
                             INHALE THERAPEUTIC SYSTEMS
                                          
                              Condensed Balance Sheets
                                   (in thousands)
                                          
<TABLE>
<CAPTION>

                                                     March 31, 1998  December 31, 1997
                                                     --------------  -----------------
                                                      (unaudited)        (Note) 
<S>                                                  <C>             <C>
                                         ASSETS
                                                                     
Current assets:
   Cash and cash equivalents                           $   11,397     $   14,948
   Short-term investments                                  72,443         85,225
   Other current assets                                     3,140            752
                                                       ----------     ----------
     Total current assets                                  86,980        100,925

Property and equipment:
   Laboratory and other equipment                           9,866          4,408
   Leasehold improvements                                  22,106          2,427
   Leased equipment                                           677            677
                                                       ----------     ----------
                                                           32,649          7,512
   Less accumulated depreciation and amortization          (5,899)        (3,302)
                                                       ----------     ----------
  Net property and equipment                               26,750          4,210

Deposits and other assets                                     143            143
                                                       ----------     ----------
                                                       $  113,873     $  119,762
                                                       ----------     ----------
                                                       ----------     ----------



                         LIABILITIES AND SHAREHOLDERS' EQUITY
                                                                     
Current liabilities:
   Accounts payable and accrued liabilities               $ 7,899       $ 10,428
   Deferred revenue                                         6,743          6,686
                                                       ----------     ----------
     Total current liabilities                             14,642         17,114

Equipment financing obligations                             5,088          5,102
Accrued rent                                                  614            453

Shareholders' equity:
   Common stock                                           135,924        135,273
   Deferred compensation                                     (578)          (538)
   Accumulated deficit                                    (41,817)       (37,642)
                                                       ----------     ----------
     Total shareholders' equity                            93,529         97,093
                                                       ----------     ----------
                                                        $ 113,873     $  119,762
                                                       ----------     ----------
                                                       ----------     ----------
   
</TABLE>


Note:  The balance sheet at December 31, 1997 has been derived from the
audited financial statements at that date but does not include all of the
information and footnotes required by generally accepted accounting
principles for complete financial statements.


SEE ACCOMPANYING NOTES. 


                                                                  Page 3 of 18

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                             INHALE THERAPEUTIC SYSTEMS
                                          
                         Condensed Statements of Operations
                    (in thousands, except per share information)
                                    (unaudited)

<TABLE>
<CAPTION>
                                          
                                                        THREE MONTHS ENDED MARCH 31,
                                                        ----------------------------
                                                            1998            1997
                                                        ----------------------------
<S>                                                     <C>               <C>
Contract research revenue                                 $ 3,865        $ 3,177

Operating costs and expenses:
    Research and development                                7,217          4,569
    General and administrative                              1,925          1,382
                                                         --------         ------
Total operating costs and expenses                          9,142          5,951
                                                         --------         ------
Loss from operations                                       (5,277)        (2,774)

Interest income, net                                        1,128            730
                                                         --------         ------

Net loss                                                  $(4,149)       $(2,044)
                                                         --------         ------
                                                         --------         ------

Basic and diluted net loss per share                      $ (0.27)       $ (0.16)
                                                         --------         ------
                                                         --------         ------

Shares used in basic and diluted net loss per share
     calculation                                           15,568         12,878
                                                         --------         ------
                                                         --------         ------

</TABLE>


SEE ACCOMPANYING NOTES. 

                                                                  Page 4 of 18

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                           INHALE THERAPEUTIC SYSTEMS
                                                                     
                       Condensed Statements of Cash Flows
                Increase/(Decrease) in Cash and Cash Equivalents
                                (in thousands)
                                 (unaudited)
                                                                     
<TABLE>
<CAPTION>
                                                                     
                                                                     THREE MONTHS ENDED MARCH 31,
                                                                     ----------------------------
                                                                           1998          1997
                                                                     ----------------------------
<S>                                                                  <C>                <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Cash provided by (used in) operations                                  $(8,164)      $  1,868

CASH FLOWS FROM INVESTING ACTIVITIES:
  Sales and maturities (purchases) of available for sale securities       12,756        (13,388)
  Purchases of property and equipment                                     (8,774)          (898)
                                                                         -------       --------
  Net cash provided by (used in) investing activities                      3,982        (14,286)

CASH FLOWS FROM FINANCING ACTIVITIES:
  Payments of equipment financing obligations                                (20)           (63)
  Issuance of common stock, net of issuance costs                            651         30,575
                                                                         -------       --------
  Net cash provided by financing activities                                  631         30,512
                                                                         -------       --------
  Net increase (decrease) in cash and cash equivalents                    (3,551)        18,094

Cash and cash equivalents at beginning of period                          14,948         18,568
                                                                         -------       --------

Cash and cash equivalents at end of period                               $11,397       $ 36,662
                                                                         -------       --------
                                                                         -------       --------
 
</TABLE>

SEE ACCOMPANYING NOTES. 

                                                                  Page 5 of 18

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                             INHALE THERAPEUTIC SYSTEMS
                                          
                      NOTES TO CONDENSED FINANCIAL STATEMENTS
                                   March 31, 1998
                                     (unaudited)


1.   BASIS OF PRESENTATION

     The accompanying unaudited condensed financial statements of Inhale
Therapeutic Systems ("Inhale" or the "Company") have been prepared in accordance
with generally accepted accounting principles for interim financial information
and the instructions for Form 10-Q and Article 10 of Regulation S-X.  The
balance sheet as of March 31, 1998 and the related statements of operations and
cash flows for the three month periods ended March 31, 1998 and 1997, are
unaudited but include all adjustments (consisting of normal recurring
adjustments) which the Company considers necessary for a fair presentation of
the financial position at such dates and the operating results and cash flows
for those periods.  Although the Company believes that the disclosures in these
financial statements are adequate to make the information presented not
misleading, certain information normally included in financial statements and
related footnotes prepared in accordance with generally accepted accounting
principles have been condensed or omitted pursuant to the rules and regulations
of the Securities and Exchange Commission (the "Commission").  The accompanying
financial statements should be read in conjunction with the financial statements
and notes thereto included in the Company's Annual Report on Form 10-K for the
year ended December 31, 1997 as filed with the Commission.

     Results for any interim period are not necessarily indicative of results
for any other interim period or for the entire year.

2.   REVENUE RECOGNITION

     Contract revenue from collaborative research agreements is recorded when
earned and as the related costs are incurred.  Payments received which are
related to future performance are deferred and recognized as revenue when earned
over future performance periods.  In accordance with contract terms, up-front
and milestone payments from collaborative research agreements are considered
reimbursements for costs incurred under the agreements, and accordingly, are
generally recognized based on actual efforts expended over the terms of the
agreements. The Company's research revenue is derived primarily from partners
in the pharmaceutical and biotechnology industries. All of the Company's
research and development agreements are generally cancelable by the partner
without significant penalty to the partner.
     
     Contract research revenue from two partners represented 67% of the
Company's revenue in the three month period ended March 31, 1998.  Contract
revenue from two partners accounted for 71% of the Company's revenue in the
comparable period in 1997.  Costs of contract research revenue approximate such
revenue and are included in research and development expenses.

3.   NET LOSS PER SHARE

     In 1997, the Financial Accounting Standards Board issued Statement No. 128,
"Earnings Per Share" (FAS 128) which replaced the calculation of primary and
fully diluted earnings per share with basic and diluted earnings per share.
Unlike primary earnings per share, basic earnings per share excludes any
dilutive effects of options, warrants and convertible securities. Diluted
earnings per share is very similar to the previously reported fully diluted
earnings per share. All earnings per share amounts for all periods have been
presented, and where appropriate restated, to conform to the FAS 128
requirements.
     
     Basic and diluted net loss per common share is computed based upon the
weighted average number of common shares outstanding in accordance with FAS 128.
Common equivalent shares for stock options and warrants are not included in the
per share calculations where the effect of their inclusion would be
antidilutive.

      
                                                                  Page 6 of 18

<PAGE>

ITEM 2.

   MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
                                  OPERATIONS

     This Management's Discussion and Analysis of Financial Condition and
Results of Operations for the three months ended March 31, 1998 and 1997 should
be read in conjunction with the Management's Discussion and Analysis of
Financial Condition and Results of Operations included in the Company's Annual
Report on Form 10-K for the year ended December 31, 1997. The following
discussion contains forward-looking statements that involve risk and
uncertainties. The Company's actual results could differ materially from those
discussed here. Factors that could cause or contribute to such differences
include, but are not limited to, those discussed herein under the heading "Risk
Factors" as well as those discussed in the Company's Annual Report on Form 10-K
for the year ended December 31, 1997.  
     
     Readers are cautioned not to place undue reliance on these forward-looking
statements, which reflect management's analysis only as of the date hereof.  The
Company undertakes no obligation to publicly release the results of any revision
to these forward-looking statements which may be made to reflect events or
circumstances occurring after the date hereof or to reflect the occurrence of
unanticipated events.
     
OVERVIEW

     Since its inception in July 1990, Inhale has been engaged in the
development of a pulmonary system for the delivery of macromolecules and other
drugs for systemic and local lung applications.  The Company has been
unprofitable since inception and expects to incur significant and increasing
additional operating losses over the next several years primarily due to
increasing research and development expenditures and expansion of late stage
clinical and early stage commercial manufacturing facilities.  To date, Inhale
has not sold any products and does not anticipate receiving revenue from product
sales or royalties in the near future.  For the period from inception through
March 31, 1998, the Company incurred a cumulative net loss of approximately
$41.8 million.  The sources of working capital have been equity financings,
financings of equipment acquisitions, interest earned on investments of cash,
and revenues from research and development contracts.

     Inhale typically has been compensated for research and development expenses
during initial feasibility work performed under collaborative arrangements.
Inhale's strategy is to enter into development contracts with pharmaceutical and
biotechnology corporate partners after feasibility is demonstrated. Partners
that enter into collaborative agreements will pay for research and development
expenses and may make payments to Inhale as it achieves certain key milestones. 
Inhale expects to receive royalties from its partners based on revenues received
from product sales, and to receive revenue from the manufacturing of powders and
the supply of devices.  In certain cases, the Company may enter into
collaborative agreements under which the Company's partners would manufacture or
package powders or supply inhalation devices, thereby potentially limiting one
or more sources of revenue for the Company.  To achieve and sustain profitable
operations, the Company, alone or with others, must successfully develop, obtain
regulatory approval for, manufacture, introduce, market and sell products
utilizing its pulmonary drug delivery system.  There can be no assurance that
the Company can generate sufficient product or contract research revenue to
become profitable or to sustain profitability.
     
RESULTS OF OPERATIONS

     Revenue in the first quarter of 1998 was $3.9 million compared to $3.2
million in the first quarter of 1997, an increase of 22%. The increase in
revenue was primarily due to the expansion of the Company's existing
collaborative agreements. Revenue for both the first quarter of 1998 and 1997
was comprised of reimbursed research and development expenses and the
amortization of the pro-rata portion of the up-front signing and milestone
payments based on actual efforts expended.  Costs of contract research revenue
approximate such revenue and are included in research and development expenses.

     Research and development expenses increased to approximately $7.2 million
in the first quarter of 1998 from $4.6 million in the corresponding period of
1997, an increase of 58%. The increase was due primarily to continued expansion
of research activities resulting from an increase in the number of projects,
additional hiring of scientific and development personnel, costs associated with
the development of its commercial manufacturing facility and increased costs of
laboratory supplies and consulting services.  The Company expects research,
development and process development spending to increase significantly over the
next few years as the Company expands its 


                                                                  Page 7 of 18

<PAGE>

development efforts under collaborative agreements and scales up its late 
stage clinical and early commercial manufacturing facility.

     General and administrative expenses increased to $1.9 million in the 
first quarter of 1998 from $1.4 million in the first quarter of 1997, an 
increase of 39%. The increase was due primarily to costs associated with 
supporting the Company's increased research efforts including administrative 
staffing, business development activities and marketing activities.  General 
and administrative expenses are expected to continue to increase over the 
next few years to support increased levels of research, development and 
manufacturing activities.

     Net interest income increased to $1.1 million in the first quarter of 
1998 compared to $0.7 million in the first quarter of 1997, an increase of 
55%. The increase in income was due to larger cash and investment balances 
maintained by the Company during the quarter ended March 31, 1998, compared 
to the same period in 1997.  The higher cash and investment balances are the 
result of the Company receiving milestone and research funding payments from 
collaborative partners as well as the completion of a public offering of the 
Company's Common Stock in November 1997 which raised net proceeds of 
approximately $40.0 million.

LIQUIDITY AND CAPITAL RESOURCES

     The Company has financed its operations primarily through public and 
private placements of its equity securities, contract research and milestone 
revenues, interest income earned on its investments of cash and financing of 
equipment acquisitions.  At March 31, 1998, the Company had cash, cash 
equivalents and short-term investments of approximately $83.8 million.

     The Company's operations used cash of $8.2 million in the three months 
ended March 31, 1998, as compared to the Company's operations providing cash 
of $1.9 million for the three months ended March 31, 1997.  The increase in 
net cash used in operations is principally due to the Company's greater net 
loss incurred during the quarter ended March 31, 1998 compared the net loss 
incurred during 1997, as well increases in other current assets, deposits and 
other assets, depreciation and deferred revenue, and decreases in accounts 
payable and accrued liabilities.

     The Company purchased property and equipment of approximately $8.8 
million during the three months ended March 31, 1998, compared to $0.9 
million for the corresponding period in 1997. The increase is primarily due 
to the build out of the Company's new facility in San Carlos, California as 
well as the acquisition of laboratory equipment to support its research 
activities.  

     The Company expects its cash requirements to increase due to expected 
increases in costs associated with further research and development of its 
technologies, resulting in larger numbers of projects, development of drug 
formulations, process development for the manufacture and filling of powders 
and devices, marketing and general and administrative costs. These expenses 
include, but are not limited to, increases in personnel and personnel related 
costs, purchases of capital equipment, investments in technologies, 
inhalation device prototype construction and facilities expansion, including 
the completion of its late stage clinical and early stage commercial 
manufacturing facility. 

     The Company believes that its cash, cash equivalents and short-term 
investments as of March 31, 1998 together with interest income and possible 
additional equipment financing, will be sufficient to meet its operating 
expense and capital expenditure requirements at least through 1999.  However, 
the Company's capital needs will depend on many factors, including continued 
scientific progress in its research and development arrangements, progress 
with pre-clinical and clinical trials, the time and costs involved in 
obtaining regulatory approvals, the costs of developing and the rate of 
scale-up of the Company's powder processing and packaging technologies, the 
timing and cost of its late-stage clinical and early commercial production 
facility, the costs involved in preparing, filing, prosecuting, maintaining 
and enforcing patent claims, the need to acquire licenses to new technologies 
and the status of competitive products.  To satisfy its long-term needs, the 
Company intends to seek additional funding, as necessary, from corporate 
partners and from the sale of securities.  There can be no assurance that 
additional funds, if and when required, will be available to the Company on 
favorable terms, if at all.

YEAR 2000 COMPLIANCE
     
     The Company is aware of the issues associated with the programming code 
in existing computer systems as the millennium (year 2000) approaches.  The 
"year 2000" problem is pervasive and complex as virtually every computer 
operation will be affected in some way by the rollover of the two digit year 
value to 00. The issue is 


                                                                  Page 8 of 18

<PAGE>

whether computer systems will properly recognize date sensitive information 
when the year changes to 2000.  Systems that do not properly recognize such 
information could generate erroneous data or cause a system to fail.

     The Company is utilizing internal resources to conduct a comprehensive 
review of its computer systems to identify the systems that could be affected 
by the "year 2000" issue and is developing an implementation plan to resolve 
the issue.  The Company presently believes that, with modifications to 
existing software and converting to new software, the "year 2000" problem 
will not pose significant operational problems for the Company's computer 
systems as so modified and converted.  However, if such modifications and 
conversions are not completed timely, the "year 2000" problem may have a 
material adverse impact on the operations of the Company.

RECENT ACCOUNTING PRONOUNCEMENTS

     As of January 1, 1998, the Company adopted Statement of Financial 
Accounting Standards No. 130 ("SFAS 130"), "Reporting Comprehensive Income." 
SFAS 130 establishes new rules for the reporting and display of comprehensive 
income and its components; however, the adoption of this Statement had no 
impact on the Company's net loss or stockholders' equity.  SFAS 130 requires 
unrealized gains or losses on the Company's available-for-sale securities and 
foreign currency translation adjustments, which prior to adoption were 
reported separately in stockholders' equity, to be included in other 
comprehensive income.  Comprehensive income is equal to net income for the 
three months ended March 31, 1998 and 1997.

     Effective January 1, 1998, the Company adopted the Financial Accounting 
Standard Board's Statement of Financial Accounting Standards No. 131 ('SFAS 
131"), "Disclosures about Segments of an Enterprise and Related Information." 
SFAS 131 superseded SFAS 14, "Financial Reporting for Segments of a Business 
Enterprise."  SFAS 131 establishes standards for the way that public business 
enterprises report selected information about operating segments in interim 
financial reports.  SFAS 131 also establishes standards for related 
disclosures about products and services, geographic areas, and major 
customers.  The adoption of SFAS 131 had no impact on the Company's results 
of operation, financial position, or disclosure of segment information at 
March 31, 1998 or 1997. 

RISK FACTORS 

EARLY STAGE COMPANY.  Inhale is in an early stage of development. There can 
be no assurance that the Company's pulmonary delivery technology will prove 
to be technically feasible or commercially applicable to a range of 
macromolecules and small molecule drugs. Only six of the Company's fourteen 
pulmonary delivery formulations, insulin, interleukin-1 receptor, salmon 
calcitonin, an osteoporosis drug and two small molecules have been subject to 
any human clinical testing. Although many of the underlying drug compounds 
with which the Company is working have been tested in humans by others using 
alternative delivery routes, Inhale's potential products will require 
extensive research, development, pre-clinical and clinical testing, and may 
involve lengthy regulatory review. There can be no assurance that any of the 
Company's potential products will prove to be safe and effective in clinical 
trials, meet applicable regulatory standards, be capable of being produced in 
commercial quantities at acceptable cost or be marketed successfully. Any 
failure of the Company to achieve technical feasibility, demonstrate safety, 
achieve clinical efficacy, obtain regulatory approval or, together with 
partners, successfully market products, would have a material adverse effect 
on the Company. 

UNCERTAINTIES RELATED TO TECHNOLOGY AND PRODUCT DEVELOPMENT.  The success of 
Inhale's pulmonary drug delivery system for any drugs will depend upon the 
Company achieving sufficient system efficiency (measured by the percentage of 
bulk drug entering the manufacturing process that eventually is absorbed into 
the bloodstream relative to injection for systemic indications, or the amount 
of drug delivered to the lung tissue for local lung indications), formulation 
stability, safety and dosage reproducibility. 

     The initial screening determinant for the feasibility of pulmonary 
delivery of any systemic drug is pulmonary bioavailability, which measures 
the percentage of the drug absorbed into the bloodstream when delivered 
directly to the lungs. In addition, a certain percentage of each drug dose is 
lost at various stages of the manufacturing and pulmonary delivery process in 
drug formulation, dry powder processing, packaging, and in moving the drug 
from a delivery device into the lungs. Excessive drug loss at any one stage 
or cumulatively in the manufacturing and delivery process could render a drug 
commercially unfeasible for pulmonary delivery. 

     Formulation stability (the physical and chemical stability of the 
formulated drug over time and under various storage conditions) and safety 
will vary with each drug and the type and amount of excipients that are used 
in the formulation. Reproducible dosing (the ability to deliver a consistent 
and predictable amount of drug into the bloodstream 


                                                                  Page 9 of 18

<PAGE>

over time both for a single patient and across patient groups) requires the 
development of an inhalation device that consistently delivers predictable 
amounts of dry powder formulations to the deep lung, accurate unit dose 
packaging of dry powder formulations and moisture resistant packaging. There 
can be no assurance that the Company will be able to develop successfully 
such an inhalation device or overcome such other obstacles to reproducible 
dosing. 

     The Company's integrated approach to systems development relies upon 
several different but related technologies. Development of powder 
formulations, processing and packaging technology and the delivery device, 
establishing collaborations with partners, laboratory and clinical testing, 
and manufacturing scale-up must proceed contemporaneously so as not to delay 
any aspect of systems development. Any delay in one component of product or 
business development could cause consequential delays in the Company's 
ability to develop, obtain approval of or market therapeutic products using 
its system. Further refinement of the Company's device prototype, further 
scale-up of the powder processing system and automated packaging system will 
need to be accomplished before initiation of late stage clinical trials. 

     There can be no assurance that Inhale will be able to demonstrate 
pulmonary bioavailability for the drug candidates it has identified or may 
identify, will be able to achieve commercial viability of its pulmonary 
delivery system or will achieve the total system efficiency needed to be 
competitive with alternative routes of delivery. Further, there can be no 
assurance that the Company's pulmonary delivery system will prove to be safe 
or provide reproducible dosages of stable formulations sufficient to achieve 
clinical efficacy, regulatory approval or market acceptance. In addition, 
there can be no assurance that Inhale will advance the numerous aspects of 
product and business development such that delays in overall product 
development do not occur. The failure to demonstrate pulmonary 
bioavailability, achieve total system efficiency, provide safe, reproducible 
dosages of stable formulations or advance on a timely basis the numerous 
aspects of product and business development would have a material adverse 
effect on the Company. 

UNCERTAINTIES RELATED TO CLINICAL TRIALS.  The Company has limited experience 
in conducting clinical trials and intends to rely primarily on the 
pharmaceutical companies with which it collaborates, including Pfizer Inc. 
and Eli Lilly & Company.  The Company is responsible for managing the 
clinical trials in its collaboration with Baxter Healthcare Corporation 
("Baxter"). Before seeking regulatory approvals for the commercial sale of 
products under development, the Company must demonstrate through pre-clinical 
studies and clinical trials that such products are safe and effective for use 
in the target indications. The results from pre-clinical studies and early 
clinical trials may not be indicative of results that will be obtained in 
large-scale testing, and there can be no assurance that the Company's 
clinical trials will demonstrate sufficient safety and efficacy to obtain the 
requisite regulatory approvals or will result in marketable products. 
Clinical trials are also often conducted with patients having advanced stages 
of disease. During the course of treatment, these patients can die or suffer 
other adverse medical effects for reasons that may not be related to the 
pharmaceutical agent being tested but which can nevertheless affect clinical 
trial results. A number of companies in the pharmaceutical industry have 
suffered significant setbacks in advanced clinical trials, even after 
promising results in earlier trials. Clinical trials for products being 
developed by the Company and its partners may be delayed by many factors, 
including enrolling a sufficient number of patients fitting the appropriate 
trial profile. If any of the Company's products under development are not 
shown to be safe and effective in clinical trials, the resulting delays in 
developing other compounds and conducting related pre-clinical testing and 
clinical trials, as well as the need for additional financing, would have a 
material adverse effect on the Company. 

HISTORY OF OPERATING LOSSES; UNCERTAINTY OF FUTURE PROFITABILITY.  The 
Company has not been profitable since inception and, through March 31, 1998, 
has incurred a cumulative deficit of approximately $41.8 million. The Company 
expects to continue to incur substantial and increasing losses over at least 
the next several years as the Company's research and development efforts, 
preclinical and clinical testing activities and manufacturing scale-up 
efforts expand and as the Company plans and builds its late stage clinical 
and early commercial production facility. All of the Company's potential 
products are in research or in the early stages of development, and no 
revenues have been generated from approved product sales. The Company's 
revenues to date have consisted primarily of payments under short-term 
research and feasibility agreements and development contracts. To achieve and 
sustain profitable operations, the Company, alone or with others, must 
successfully develop, obtain regulatory approval for, manufacture, introduce, 
market and sell products utilizing its pulmonary drug delivery system. There 
can be no assurance that the Company can generate sufficient product or 
contract research revenue to become profitable or to sustain profitability. 

DEPENDENCE UPON COLLABORATIVE PARTNERS.  The Company currently does not 
possess the resources necessary to develop, obtain regulatory approvals, or 
commercialize any of its potential therapeutic products. The Company's 
ability to apply its pulmonary delivery system to a broad range of drugs will 
depend upon its ability to establish and maintain collaborative arrangements 
since many of the drugs currently approved for sale or in clinical testing 
are covered by third-party patents. The Company has entered into 
collaborative arrangements with certain of its partners to fund clinical 


                                                                  Page 10 of 18

<PAGE>

trials, assist in obtaining regulatory approvals, supply drugs for 
formulation and market and distribute products. While Inhale has also entered 
into agreements with partners to test the feasibility of its pulmonary 
delivery system with certain of their proprietary molecules, there can be no 
assurance that the Company will be able to enter into additional 
collaborations or that its feasibility agreements will lead to 
collaborations. There also can be no assurance that the Company will be able 
to maintain any such collaborative arrangements or feasibility agreements or 
that any such collaborative arrangements or feasibility agreements will be 
successful. The failure of the Company to enter into or maintain such 
collaborative arrangements and feasibility agreements would have a material 
adverse effect on the Company. Moreover, the inability of the Company to 
enter into a collaborative arrangement with the owner of any patented drug 
may preclude the Company from working with such drug. Beginning in October 
1997, Inhale announced its plan to renegotiate with Baxter certain terms of 
their collaboration agreement to address concerns raised by both parties 
about the overall scope and cost of the collaborative arrangement. In April 
1998, the renegotiation of the collaborative agreement with Baxter was 
finalized. Under the revised terms, Inhale and Baxter will focus on the 
product which entered Phase I testing in November 1997 and continue to pursue 
its commercialization. 

     The Company's existing partners have rights to pursue parallel 
development of other drug delivery systems which may compete with the 
Company's pulmonary drug delivery system and to terminate their agreements 
with the Company at any time without significant penalty. The Company 
anticipates that any future partners would have similar rights. Although the 
Company intends generally to formulate and manufacture powders for partners 
and to supply inhalation devices for such powders, certain partners may 
choose to formulate or manufacture their own powders, or to develop or supply 
their own device, thereby limiting one or more potential sources of revenue 
for Inhale. In addition, the Company anticipates that it may be precluded 
from entering into new arrangements with companies whose products compete 
with those of its existing partners. The Company also has limited or no 
control over the resources that any partner may devote to the Company's 
products, over partners' development efforts, including the design and 
conduct of clinical trials, and over the pricing of any such products. The 
pharmaceutical and biotechnology industries are consolidating, and 
acquisitions by, or of, the Company's existing or potential collaborative 
partners may affect the initiation or continuation of any such 
collaborations. There can be no assurances that any of the Company's present 
or future collaborative partners will perform their obligations as expected, 
will devote sufficient resources to the development, clinical testing or 
marketing of the Company's potential products or will not terminate their 
agreements with the Company prematurely or renegotiate such agreements. Any 
parallel development by a partner of alternate drug delivery systems, 
development by a partner rather than by Inhale of components of the delivery 
system, preclusion from entering into competitive arrangements, failure to 
obtain timely regulatory approvals, premature termination of an agreement, 
renegotiation of an agreement, or failure by a partner to devote sufficient 
resources to the development and commercialization of the Company's products 
would have a material adverse effect on the Company. 

LIMITED MANUFACTURING EXPERIENCE; RISK OF SCALE-UP.  To achieve the levels of 
production of Inhale's dry powder drug formulations necessary to support late 
stage human clinical trials and for early commercialization of any of such 
products, the Company will need to scale-up its current powder processing 
facilities and automated filling, build a late stage clinical and early 
commercial production facility, and comply with the good manufacturing 
practice ("GMP") standards prescribed by the United States Food and Drug 
Administration ("FDA") and other standards prescribed by various federal, 
state and local regulatory agencies in the United States and any other 
country of use. 

     The Company has no experience manufacturing products for large scale 
clinical testing or commercial purposes. To date, the Company has performed 
powder processing on the small scale needed for early stage trials and for 
testing formulations of certain other potential therapeutic products and 
scaled-up powder processing for larger clinical trials. There can be no 
assurance that manufacturing and control problems will not arise as the 
Company attempts to further scale-up its powder processing facilities or that 
such scale-up can be achieved in a timely manner or at a commercially 
reasonable cost. Any failure to surmount such problems could delay or prevent 
late stage clinical testing and commercialization of the Company's products 
and would have a material adverse effect on the Company. To date, the Company 
has relied on a particular method of powder processing. There can be no 
assurance that this technology will be applicable to all drugs or that the 
drug losses in powder processing will not be too high for commercial 
viability for certain drugs. In the event that the Company decides to pursue 
alternative powder processing methods for some or all of its drugs, there can 
be no assurance that these methods will prove commercially practical for 
aerosol drugs or that the Company will have or be able to acquire rights to 
use such alternative methods. 

     Fine particle powders and small quantity packaging (such as those to be 
used in the Company's delivery system) require special handling. The Company 
has designed and qualified small scale automated filling equipment for small 
quantity packaging of fine powders. The Company faces significant technical 
challenges scaling-up an automated filling system that can accurately and 
economically handle the small dose and particle sizes of its powders in 
commercial quantities. There can be no assurances that the Company will be 
able to scale-up its automated filling equipment in a 


                                                                  Page 11 of 18
<PAGE>


timely manner or at commercially reasonable costs. Any failure or delay in 
such scale-up would delay product development or bar commercialization of the 
Company's products and would have a material adverse effect on the Company. 

     The Company also faces technical challenges in further developing its 
inhalation device to achieve the efficiency necessary to deliver a broad 
range of drugs, to produce such a device in quantities sufficient for later 
stage clinical trials and early commercialization, and to adapt the device as 
may be required for different powder formulations. There can be no assurance 
that Inhale will successfully achieve such efficiencies, will be able to 
produce such quantities or will be able to adapt the device as required. The 
failure of the Company to overcome any such challenges would have a material 
adverse effect on the Company. For late stage clinical trials and initial 
commercial production, the Company intends to use one or more contract 
manufacturers to produce its device. There can be no assurance that Inhale 
will be able to enter into or maintain such arrangements. The failure of the 
Company to enter into and maintain such arrangements would have a material 
adverse effect on the Company. 

UNCERTAINTY OF MARKET ACCEPTANCE.  The commercial success of the Company's 
pulmonary drug delivery system will depend upon market acceptance by health 
care providers, payors and patients. The Company's products under development 
use a new method of drug delivery, and there can be no assurance that any of 
the Company's products under development will ever achieve market acceptance. 
Market acceptance will depend on many factors, including the safety and 
efficacy results of the Company's clinical trials, favorable regulatory 
approval and product labeling, the frequency of administration, the 
availability of third-party reimbursement, the availability of alternative 
technologies and the price of the Company's products relative to alternative 
technologies. There can be no assurance that health care providers, patients 
or third-party payors will accept the Company's pulmonary drug delivery 
system and the failure to do so would have a material adverse effect on the 
Company. 

FUTURE CAPITAL NEEDS; UNCERTAINTY OF ADDITIONAL FUNDING.  The Company's 
operations to date have consumed substantial and increasing amounts of cash. 
The negative cash flow from operations is expected to continue and to 
accelerate in the foreseeable future. The development of the Company's 
technology and proposed products will require a commitment of substantial 
funds to conduct costly and time-consuming research, preclinical and clinical 
testing, establish an early commercial production facility and bring any such 
products to market. The Company's future capital requirements will depend on 
many factors, including continued progress in the research and development of 
the Company's technology and drug delivery system, the ability of the Company 
to establish and maintain collaborative arrangements with others and the 
terms thereof, payments received from partners under research and development 
agreements, progress with preclinical and clinical trials, the time and costs 
involved in obtaining regulatory approvals, the cost of development and the 
rate of scale-up of the Company's powder processing and packaging 
technologies, the timing and costs of its late stage clinical and early 
commercial production facility, the cost involved in preparing, filing, 
prosecuting, maintaining and enforcing patent claims, the need to acquire 
licenses to new technology and the status of competitive products. 

     The Company expects that its existing capital resources, contract 
research revenues from collaborations and the net proceeds from the November 
1997 public offering and the interest thereon, will enable the Company to 
maintain its current and planned operations at least through 1999. 
Thereafter, the Company may need to raise substantial additional capital to 
fund its operations. The Company intends to seek such additional funding 
through collaborative or partnering arrangements, the extension of existing 
arrangements, or through public or private equity or debt financings. There 
can be no assurance that additional financing will be available on acceptable 
terms or at all. If additional funds are raised by issuing equity securities, 
further dilution to shareholders may result. If adequate funds are not 
available, the Company may be required to delay, reduce the scope of, or 
eliminate one or more of its research or development programs or obtain funds 
through arrangements with collaborative partners or others that may require 
the Company to relinquish rights to certain of its technologies, product 
candidates or products that the Company would otherwise seek to develop or 
commercialize. 

DEPENDENCE UPON PROPRIETARY TECHNOLOGY; UNCERTAINTY OF OBTAINING LICENSES OR 
DEVELOPING TECHNOLOGY.  The Company's success will depend in part upon 
protecting its proprietary technology from infringement, misappropriation, 
duplication and discovery. The Company intends to rely principally on a 
combination of patent law, trade secrets and contract law to protect its 
proprietary technology in the United States and abroad. Inhale has filed 
patent applications covering certain aspects of its device, powder processing 
technology, and powder formulations and pulmonary route of delivery for 
certain molecules, and plans to file additional patent applications. On 
October 17, 1995 the PTO issued U.S. Patent No. 5,458,135 to Inhale covering 
the use of its device as a method for delivering powder formulations of drugs 
to the lung. There can be no assurance that any of the patents applied for by 
the Company will issue, or that any 


                                                                  Page 12 of 18

<PAGE>

patents that issue will be valid and enforceable. Even if such patents are 
enforceable, the Company anticipates that any attempt to enforce its patents 
could be time consuming and costly. 

     The patent positions of pharmaceutical, biotechnology and drug delivery 
companies, including Inhale, are uncertain and involve complex legal and 
factual issues. Additionally, the coverage claimed in a patent application 
can be significantly reduced before the patent is issued. As a consequence, 
the Company does not know whether any of its patent applications will result 
in the issuance of patents or, if any patents issue, whether they will 
provide significant proprietary protection or will be circumvented or 
invalidated. Since patent applications in the United States are maintained in 
secrecy until patents issue, and since publication of discoveries in the 
scientific or patent literature often lag behind actual discoveries, the 
Company cannot be certain that it was the first inventor of inventions 
covered by its pending patent applications or that it was the first to file 
patent applications for such inventions. Moreover, the Company may have to 
participate in interference proceedings declared by the PTO to determine 
priority of invention, which could result in substantial cost to the Company, 
even if the eventual outcome is favorable to the Company. An adverse outcome 
could subject the Company to significant liabilities to third parties, 
require disputed rights to be licensed from or to third parties or require 
the Company to cease using the technology in dispute. 

     The Company is aware of numerous pending and issued U.S. and foreign 
patent rights and other proprietary rights owned by third parties that relate 
to aerosol devices and delivery, pharmaceutical formulations, dry powder 
processing technology and the pulmonary route of delivery for certain 
macromolecules. The Company cannot predict with any certainty which, if any, 
patents and patent applications will be considered relevant to the Company's 
technology by authorities in the various jurisdictions where such rights 
exist, nor can the Company predict with certainty which, if any, of these 
rights will or may be asserted against it by such third parties. The Company 
is aware of an alternate dry powder processing technology which Inhale is not 
using for its current products under development but may desire to use for 
certain products in the future. The ownership of this powder processing 
technology is unclear and the Company is aware that multiple parties, 
including Inhale, claim patent, trade secret and other rights in the 
technology. If the Company determines that this alternate powder processing 
technology is relevant to the development of future products and further 
determines that a license to this alternate powder processing technology is 
needed, there can be no assurance that the Company can obtain a license from 
the relevant party or parties on commercially reasonable terms, if at all. 
The Company is also aware of an issued U.S. patent which covers a broad range 
of macromolecule drugs in dry formulations. The Company is evaluating the 
validity of this patent, its relevance to the Company's products and whether 
the license proposed by the patent owner is of interest to the Company. There 
can be no assurance that the Company can obtain any license to any technology 
that the Company determines it needs, on reasonable terms, if at all, or that 
Inhale could develop or otherwise obtain alternate technology. The failure of 
the Company to obtain licenses if needed would have a material adverse effect 
on the Company. 

     In June 1997, the Company acquired the intellectual property portfolio 
of the BioPreservation Division of Pafra Limited of Basildon, England 
("Pafra"). This portfolio includes issued U.S. and foreign Letters Patent and 
pending applications relating to the stabilization of macromolecule drugs in 
dry formulations. A granted European patent included in this portfolio is 
currently the subject of an opposition proceeding before the European Patent 
Office and the Company is continuing the defense of this patent, the 
opposition to which was initiated prior to the acquisition. There can be no 
assurance that the Company will be successful in the defense of this 
opposition proceeding. In addition, there can be no assurance that any of the 
Pafra patent applications will issue, or that any Pafra patents will be valid 
and enforceable. The loss of the opposition proceeding or the inability to 
obtain or defend the Pafra patents could have a material adverse effect on 
the Company. 

     Third parties from time to time have asserted and may assert that the 
Company is employing technology that they believe is based on issued patents, 
trade secrets or know-how of others. In addition, future patents may issue to 
third parties which the Company's technology may infringe. The Company could 
incur substantial costs in defending itself and its partners against any such 
claims. Furthermore, parties making such claims may be able to obtain 
injunctive or other equitable relief which could effectively block the 
Company's ability to further develop or commercialize some or all of its 
products in the United States and abroad, and could result in the award of 
substantial damages. In the event of a claim of infringement, the Company and 
its partners may be required to obtain one or more licenses from third 
parties. There can be no assurances that the Company or its partners will be 
able to obtain such licenses at a reasonable cost, if at all. Defense of any 
lawsuit or failure to obtain any such license could have a material adverse 
effect on the Company. 

     The Company's ability to develop and commercialize its technology will 
be affected by the Company's or its partners' access to the drugs which are 
to be formulated. Many drugs, including powder formulations of certain drugs 
which are presently under development by the Company, are subject to issued 
and pending United States and foreign patent rights which may be owned by 
competing entities. There are issued patents and pending patent applications 


                                                                  Page 13 of 18

<PAGE>

relating to the pulmonary delivery of macromolecule drugs, including several 
for which the Company is developing pulmonary delivery formulations. 
Specifically, patents have been granted in the United States and Europe 
directed to aerosol formulations for the treatment of the lung containing 
alpha-1 antitrypsin (U.S.) and serine protease inhibitors, including alpha-1 
antitrypsin (Europe). The Company's development partner for alpha-1 
antitrypsin, Centeon L.L.C (a joint venture of Hoechst AG and Rhone-Poulenc 
Rorer, Inc.) ("Centeon"), is negotiating with multiple partners to secure 
rights under these patents. The failure by Centeon to secure rights under 
these patents could result in the termination of this program by Centeon. The 
resulting patent situation is highly complex, and the ability of any one 
company to commercialize a particular biopharmaceutical drug is highly 
unpredictable. The Company intends generally to rely on the ability of its 
partners to provide access to the drugs which are to be formulated for 
pulmonary delivery. There can be no assurance that the Company's partners 
will be able to provide access to drug candidates for formulation for 
pulmonary delivery or that, if such access is provided, the Company or its 
partners will not be accused of, or determined to be, infringing a third 
party's rights and will not be prohibited from working with the drug or be 
found liable for damages that may not be subject to indemnification. Any such 
restriction on access or liability for damages would have a material adverse 
effect on the Company. 

     The Company also will rely on trade secrets and contract law to protect 
certain of its proprietary technology. There can be no assurance that any 
such contract will not be breached, or that if breached, the Company will 
have adequate remedies. Furthermore, there can be no assurance that any of 
the Company's trade secrets will not become known or independently discovered 
by third parties. 

     In 1995 the PTO adopted changes to the United States patent law that 
changed the term of issued patents, subject to certain transition periods, to 
20 years from the date of filing rather than 17 years from date of issuance. 
Beginning in June 1995, the patent term became 20 years from the earliest 
effective filing date of the underlying patent application. Such change may 
reduce the effective term of protection for patents that are pending for more 
than three years in the PTO. In addition, as of January 1996, all inventors 
who work outside of the United States are able to establish a date of 
invention on the same basis as those working in the United States. Such 
change could adversely affect the ability of the Company to prevail in a 
priority of invention dispute with a third party located or doing work 
outside of the United States. While the Company cannot predict the effect 
that such changes will have on its business, such changes could have a 
material adverse effect on the Company's ability to protect its proprietary 
information and sustain the commercial viability of its products. 
Furthermore, the possibility of extensive delays in such process, could 
effectively further reduce the term during which a marketed product could be 
protected by patents. 

DEPENDENCE UPON AND NEED TO ATTRACT KEY PERSONNEL.  The Company is highly 
dependent upon the principal members of its scientific and management staff. 
The Company does not have employment contracts with its key employees, nor 
does the Company have key man insurance policies on them. The Company also 
relies on consultants and advisors to assist the Company in formulating 
research and development strategy. To pursue its product development and 
commercialization plans, the Company will be required to hire additional 
qualified scientific personnel to perform research and development, as well 
as personnel with expertise in clinical testing, government regulation and 
manufacturing. Expansion in product development and manufacturing also is 
expected to require the addition of management personnel and the development 
of additional expertise by existing management personnel. Retaining and 
attracting qualified personnel, consultants and advisors will be critical to 
the Company's success. The Company faces competition for qualified 
individuals from numerous pharmaceutical, biotechnology and drug delivery 
companies, universities and other research institutions. There can be no 
assurance that the Company will be able to retain its current key employees 
or attract and retain qualified additional personnel and management when 
needed and its failure to do so would have a material adverse effect on the 
Company's ability to develop and commercialize products. 

GOVERNMENT REGULATION; UNCERTAINTY OF OBTAINING REGULATORY APPROVAL.  The 
production and marketing of the Company's products and its ongoing research 
and development activities are subject to regulation by numerous governmental 
authorities in the United States and other countries. Prior to marketing a 
new dosage form of any drug, including one developed for use with the 
Company's pulmonary drug delivery system, whether or not such drug was 
already approved for marketing in another dosage form, the product must 
undergo rigorous preclinical and clinical testing and an extensive review 
process mandated by the FDA and equivalent foreign authorities. These 
processes generally take a number of years and require the expenditure of 
substantial resources. None of the Company's proposed products has been 
submitted to the FDA for marketing approval. The Company has no experience 
obtaining such regulatory approval, does not have the expertise or other 
resources to do so and intends to rely on its partners to fund clinical 
testing and to obtain product approvals. 

     The time required for completing such testing and obtaining such 
approvals is uncertain. Further refinement of the device prototype, further 
scale-up of the powder processing system and automated powder filling and 
packaging 


                                                                  Page 14 of 18

<PAGE>

system will need to be accomplished before initiation of later stage clinical 
trials. Any delay in any of these components of product development may delay 
testing. In addition, delays or rejections may be encountered based upon 
changes in FDA policy, including FDA policy relating to GMP compliance, 
during the period of product development. Similar delays may also be 
encountered in other countries. If regulatory approval of a product is 
granted, such approval may entail limitations on the indicated uses for which 
the product may be marketed, and the marketed product, its manufacturer, and 
its manufacturing facilities remain subject to continual review and periodic 
inspections. Later discovery of previously unknown problems with a product, 
manufacturer or facility may result in restrictions on such product or 
manufacturer, including withdrawal of the product from the market. There can 
be no assurance that regulatory approval will be obtained for any products 
developed by the Company on a timely basis, or at all. The failure to obtain 
timely regulatory approval of its products, any product marketing limitations 
or a product withdrawal would have a material adverse effect on the Company. 

UNCERTAINTY RELATED TO THE HEALTH CARE INDUSTRY AND THIRD-PARTY 
REIMBURSEMENT. Political, economic and regulatory influences are subjecting 
the health care industry in the United States to fundamental change. Recent 
initiatives to reduce the federal deficit and to reform health care delivery 
are increasing cost-containment efforts. The Company anticipates that 
Congress, state legislatures and the private sector will continue to review 
and assess alternative benefits, controls on health care spending through 
limitations on the growth of private health insurance premiums and Medicare 
and Medicaid spending, the creation of large insurance purchasing groups, 
price controls on pharmaceuticals and other fundamental changes to the health 
care delivery system. Any such proposed or actual changes could cause the 
Company or its collaborative partners to limit or eliminate spending on 
development projects. Legislative debate is expected to continue in the 
future, and market forces are expected to demand reduced costs. Inhale cannot 
predict what effect the adoption of any federal or state health care reform 
measures or future private sector reforms may have on its business. 

     In both domestic and foreign markets, sales of the Company's products 
under development will depend in part upon the availability of reimbursement 
from third-party payors, such as government health administration 
authorities, managed care providers, private health insurers and other 
organizations. In addition, other third-party payors are increasingly 
challenging the price and cost effectiveness of medical products and 
services. Significant uncertainty exists as to the reimbursement status of 
newly approved health care products. There can be no assurance that the 
Company's proposed products will be considered cost effective or that 
adequate third-party reimbursement will be available to enable Inhale to 
maintain price levels sufficient to realize an appropriate return on its 
investment in product development. Legislation and regulations affecting the 
pricing of pharmaceuticals may change before the Company's proposed products 
are approved for marketing. Adoption of such legislation could further limit 
reimbursement for medical products. If adequate coverage and reimbursement 
levels are not provided by the government and third-party payors for the 
Company's potential products, the market acceptance of these products would 
be adversely affected, which would have a material adverse effect on the 
Company. 

HIGHLY COMPETITIVE INDUSTRY; RISK OF TECHNOLOGICAL OBSOLESCENCE.  The 
biotechnology and pharmaceutical industries are highly competitive and 
rapidly evolving and significant developments are expected to continue at a 
rapid pace. The Company's success depends upon maintaining a competitive 
position in the development of products and technologies for pulmonary 
delivery of pharmaceutical drugs. If a competing company were to develop or 
acquire rights to a better dry powder pulmonary delivery device or fine 
powder processing technology, a better system for efficiently and 
reproducibly delivering drugs to the deep lung, a non-invasive drug delivery 
system which is more attractive for the delivery of drugs than pulmonary 
delivery, or an invasive delivery system which overcomes some of the 
drawbacks of current invasive systems for chronic or subchronic indications 
(such as a sustained release system), the Company's business could be 
materially adversely affected. 

     The Company is in competition with pharmaceutical, biotechnology and 
drug delivery companies, hospitals, research organizations, individual 
scientists and nonprofit organizations engaged in the development of 
alternative drug delivery systems or new drug research and testing, as well 
as with entities producing and developing injectable drugs. The Company is 
aware of a number of companies currently seeking to develop new products and 
non-invasive alternatives to injectable drug delivery, including oral 
delivery systems, intranasal delivery systems, transdermal systems and 
colonic absorption systems. Several of these companies may have developed or 
be developing dry powder devices that could be used for pulmonary delivery. 
The Company is also aware of other companies currently engaged in the 
development and commercialization of pulmonary drug delivery systems and 
enhanced injectable drug delivery systems. Many of these companies and 
entities have greater research and development capabilities, experience, 
manufacturing, marketing, financial and managerial resources than the Company 
and represent significant competition for the Company. Acquisitions of 
competing drug delivery companies by large pharmaceutical companies could 
enhance competitors' financial, marketing and other resources. Accordingly, 
the Company's competitors may succeed in developing competing technologies, 
obtaining FDA approval for products or gain market acceptance more rapidly 
than the 


                                                                  Page 15 of 18

<PAGE>

Company. There can be no assurance that developments by others will not 
render the Company's products or technologies uncompetitive or obsolete. 

PRODUCT LIABILITY; AVAILABILITY OF INSURANCE.  The design, development and 
manufacture of the Company's products involve an inherent risk of product 
liability claims and associated adverse publicity. Although the Company 
currently maintains general liability insurance, there can be no assurance 
that the coverage limits of the Company's insurance policies will be 
adequate. The Company obtained clinical trial product liability insurance of 
$3.0 million per event for certain clinical trials and intends to obtain 
insurance for future clinical trials of insulin and other products under 
development. There can be no assurance, however, that the Company will be 
able to obtain or maintain insurance for any future clinical trials. Such 
insurance is expensive, difficult to obtain and may not be available in the 
future on acceptable terms, or at all. A successful claim brought against the 
Company in excess of the Company's insurance coverage would have a material 
adverse effect upon the Company and its financial condition. 

HAZARDOUS MATERIALS.  The Company's research and development involves the 
controlled use of hazardous materials, chemicals and various radioactive 
compounds. Although the Company believes that its safety procedures for 
handling and disposing of such materials comply with the standards prescribed 
by state and federal regulations, the risk of accidental contamination or 
injury from these materials cannot be completely eliminated. In the event of 
such an accident, the Company could be held liable for any damages that 
result and any such liability could exceed the resources of the Company. The 
Company may incur substantial costs to comply with environmental regulations. 

ANTI-TAKEOVER PROVISIONS.  Certain provisions of the Company's Restated 
Articles of Incorporation and the California General Corporation Law could 
discourage a third party from attempting to acquire, or make it more 
difficult for a third party to acquire, control of the Company without 
approval of the Company's Board of Directors. Such provisions could also 
limit the price that certain investors might be willing to pay in the future 
for shares of Common Stock. Certain of the provisions allow the Board of 
Directors to authorize the issuance of Preferred Stock with rights superior 
to those of the Common Stock. The Company also will be subject to the 
provisions of Section 1203 of the California General Corporation Law which 
requires a fairness opinion to be provided to the Company's shareholders in 
connection with their consideration of any proposed "interested party" 
reorganization transaction. 

POTENTIAL VOLATILITY OF STOCK PRICE.  The market prices for securities of 
early stage biotechnology companies have historically been highly volatile 
and the market from time to time experienced significant price and volume 
fluctuations that are unrelated to the operating performance of particular 
companies. Factors such as fluctuations in the Company's operating results, 
announcements of technological innovations or new therapeutic products or the 
announcement or termination of collaborative relationships by the Company or 
its competitors, governmental regulation, clinical trial results, 
developments in patent or other proprietary rights, public concern as to the 
safety of drug formulations developed by the Company or others and general 
market conditions may have a significant effect on the market price of the 
Common Stock. The Company's securities are subject to a high degree of risk 
and volatility. In the past, following periods of volatility in the market 
price of a company's securities, class action securities litigation has often 
been instituted against such a company. Any such litigation instigated 
against the Company could result in substantial costs and a diversion of 
management's attention and resources, which could have a material adverse 
effect on the Company's business, financial condition and operating results. 

PART II:  OTHER INFORMATION
- ---------------------------

Item 6.   Exhibits and Reports on Form 8-K

     The following exhibits are filed herewith or incorporated by reference

<TABLE>
<CAPTION>

 EXHIBIT                             EXHIBIT TITLE
- --------------------------------------------------------------------------------
<S>               <C>
 3.1 (3)          Restated Articles of Incorporation of the Registrant.
 3.2 (1)          Bylaws of the Registrant.
 4.1              Reference is made to Exhibits 3.1 through 3.2.
 4.2 (1)          Restated Investor Rights Agreement among the Registrant and 
                  certain other persons named therein, dated April 29,
                  1993, as amended October 29, 1993.
 4.6 (1)          Specimen stock certificate.
 4.9 (2)          Stock Purchase Agreement between the Registrant and Pfizer 
                  Inc., dated January 18, 1995.
 4.12 (9)         Form of Stock Purchase Agreement between the Registrant and 
                  the Selling Shareholders dated 

                                                                  Page 16 of 18

<PAGE>

                  January 28, 1997.
 10.1 (4)         Registrant's 1994 Equity Incentive Plan (the "Equity Incentive
                  Plan").
 10.2 (1)         Form of Incentive Stock Option under the Equity Incentive
                  Plan.
 10.3 (1)         Form of Nonstatutory Stock Option under the Equity Incentive
                  Plan.
 10.4 (7)         Registrant's 1994 Non-Employee Directors' Stock Option Plan,
                  as amended.
 10.5 (1)         Registrant's 1994 Employee Stock Purchase Plan.
 10.6 (1)         Standard Industrial Lease between the Registrant and W.F.
                  Batton & Co., Inc., dated September 17, 1992, as amended
                  September 18, 1992.
 10.8 (1)         Senior Loan and Security Agreement between the Registrant and
                  Phoenix Leasing Incorporated, dated September 15, 1993.
 10.9 (1)         Sublicense Agreement between the Registrant and John S.
                  Patton, dated September 13, 1991.
 10.11(2)         Lease dated September 17, 1992, between the Registrant and
                  W.F. Batton & Marie A. Batton.
 10.13 (6)        Addendum Number One to Lease dated September 17, 1992, between
                  the Registrant and W.F. Batton & Marie A. Batton.
 10.15 (6)        Addendum Number Two to Lease dated September 17, 1992, between
                  the Registrant and W.F. Batton & Marie A. Batton.
 10.16 (5)        Stock Purchase Agreement between the Registrant and Baxter
                  World Trade Corporation, dated March 1, 1996.
 10.17 (8)        Sublease and Lease Agreement, dated October 2, 1996 between
                  the Registrant and T.M.T. Associates L.L.C.
 27.1             Financial Data Schedule

___________

(1)  Incorporated by reference to the indicated exhibit in the Company's
     Registration Statement (No. 33-75942), as amended.
(2)  Incorporated by reference to the indicated exhibit in the Company's
     Registration Statement (No. 33-89502), as amended.
(3)  Incorporated by reference to the indicated exhibit in the Company's Annual
     Report on Form 10-K for the year ended December 31, 1994.
(4)  Incorporated by reference to the Company's Registration Statement on Form
     S-8 (No. 333-07969).
(5)  Incorporated by reference to the indicated exhibit in the Company's
     Quarterly Report on Form 10-Q for the quarter ended March 31, 1996.
(6)  Incorporated by reference to the indicated exhibit in the Company's Annual
     Report on Form 10-K for the year ended December 31, 1995.
(7)  Incorporated by reference to the indicated exhibit in the Company's
     Quarterly Report on Form 10-Q for the quarter ended June 30, 1996.
(8)  Incorporated by reference to the indicated exhibit in the Company's
     Quarterly Report on Form 10-Q for the quarter ended September 30,
     1996.
(9)  Incorporated by reference to the Company's Registration Statement on Form
     S-3 (No. 333-20787).
               

(b)  Reports on Form 8-K.
 
     On April 7, 1998, the Company filed a Current Report on Form 8-K
     reporting the completion of a renegotiation of its collaborative
     agreement with Baxter International, Inc.
 
(c)  See Exhibits listed under Item 14(a)(3).
 
</TABLE>


                                                                  Page 17 of 18

<PAGE>


Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto.
          
                            INHALE THERAPEUTIC SYSTEMS




DATE: May 14, 1998          BY: /S/Robert B. Chess     
                                -----------------------
                                Robert  B. Chess
                                President, Chief Executive Officer and Director
                                (Duly Authorized Officer)


                            BY: /S/Christian O. Henry  
                                -----------------------
                                Christian O. Henry
                                Corporate Controller
                                (Chief Accounting Officer)


                                                                  Page 18 of 18


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THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
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