INHALE THERAPEUTIC SYSTEMS INC
10-Q, 1999-05-13
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, 1999

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

           DELAWARE                                    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, $0.0001 par
value, was 16,941,154 as of April 30, 1999.

                                                              Page 1 of 17
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                        INHALE THERAPEUTIC SYSTEMS, INC.
                                      INDEX
<TABLE>
<CAPTION>
PART I: FINANCIAL INFORMATION
- -----------------------------
                                                                                                                         PAGE
<S>                  <C>                                                                                                  <C>
Item 1.              Condensed Financial Statements - unaudited.............................................................3

                     Condensed Balance Sheets - March 31, 1999 and December 31, 1998........................................3

                     Condensed Statements of Operations for the three month periods ended
                          March 31, 1999 and 1998 ..........................................................................4

                     Condensed Statements of Cash Flows for the three month periods ended 
                          March 31, 1999 and 1998...........................................................................5

                     Notes to Condensed Financial Statements................................................................6

Item 2.              Management's Discussion and Analysis of Financial Condition and
                          Results of Operations.............................................................................7

Item 3.              Quantitative and Qualitative Disclosures About Market Risk ...........................................15

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

Item 1.              Legal Proceedings.....................................................................................15

Item 2.              Changes in Securities.................................................................................15

Item 3.              Defaults Upon Senior Securities.......................................................................15

Item 4.              Submission of Matters to a Vote of Security Holders...................................................15

Item 5.              Other Information.....................................................................................15

Item 6.              Exhibits and Reports on Form 8-K......................................................................15

                     Signatures............................................................................................17
</TABLE>

                                                              Page 2 of 17
<PAGE>

Item 1.

                        INHALE THERAPEUTIC SYSTEMS, INC.

                            CONDENSED BALANCE SHEETS
                                 (IN THOUSANDS)
<TABLE>
<CAPTION>
                                                                             MARCH 31, 1999               DECEMBER 31, 1998
                                                                              (UNAUDITED)                          *      
                                                                            -----------------              ---------------
<S>                                                                         <C>                            <C>            
                                ASSETS
Current assets:
                Cash and cash equivalents                                            $18,023                      $24,916
                Short-term investments                                                55,553                       57,946
                Other current assets                                                   3,231                        1,678
                                                                            -----------------              ---------------
                        Total current assets                                          76,807                       84,540

Property and equipment, net                                                           54,449                       49,863
Deposits and other assets                                                                 93                           93
                                                                            -----------------              ---------------
                                                                                    $131,349                     $134,496
                                                                            -----------------              ---------------
                                                                            -----------------              ---------------


                                LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:

                Accounts payable and accrued liabilities                             $10,902                       $8,397
                Deferred revenue                                                       3,755                        4,359
                                                                            -----------------              ---------------
                        Total current liabilities                                     14,657                       12,756

Equipment financing obligations                                                            1                            9
Tenant improvement loan                                                                4,924                        4,931
Accrued rent                                                                             989                          919

Stockholders' equity:
                Common stock                                                               2                            2
                Capital in excess of par value                                       172,918                      172,847
                Deferred compensation                                                  (869)                        (931)
                Accumulated other comprehensive loss                                    (32)                         (19)
                Accumulated deficit                                                 (61,241)                     (56,018)
                                                                            -----------------              ---------------
                        Total stockholders' equity                                   110,778                      115,881
                                                                            -----------------              ---------------
                                                                                    $131,349                     $134,496
                                                                            -----------------              ---------------
                                                                            -----------------              ---------------
</TABLE>

                     SEE ACCOMPANYING NOTES.

(*) The balance sheet at December 31, 1998 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.

                                                               Page 3 of 17
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                        INHALE THERAPEUTIC SYSTEMS, INC.

                       CONDENSED STATEMENTS OF OPERATIONS
                  (IN THOUSANDS, EXCEPT PER SHARE INFORMATION)
                                  (UNAUDITED)

<TABLE>
<CAPTION>
                                                                                        THREE MONTHS
                                                                                            ENDED
                                                                                          MARCH 31,
                                                                            --------------------------------------
                                                                                  1999                  1998
                                                                            -----------------      ---------------
<S>                                                                          <C>                   <C>            
Contract research revenue                                                             $7,780               $3,865

Operating costs and expenses:
                Research and development                                              12,716                7,217
                General and administrative                                             1,264                1,925
                                                                            -----------------      ---------------

Total operating costs and expenses                                                    13,980                9,142
                                                                            -----------------      ---------------

Loss from operations                                                                  (6,200)              (5,277)

Interest income, net                                                                     977                1,128

                                                                            -----------------      ---------------
Net loss                                                                              (5,223)              (4,149)
                                                                            -----------------      ---------------
                                                                            -----------------      ---------------

Basic and diluted net loss per share                                                  ($0.31)              ($0.27)
                                                                            -----------------      ---------------
                                                                            -----------------      ---------------

Shares used in computing
basic and diluted net loss per share                                                  16,929               15,568
                                                                            -----------------      ---------------
                                                                            -----------------      ---------------
</TABLE>

                          SEE ACCOMPANYING NOTES.

                                                              Page 4 of 17
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                        INHALE THERAPEUTIC SYSTEMS, INC.

                       CONDENSED STATEMENTS OF CASH FLOWS
                INCREASE/(DECREASE) IN CASH AND CASH EQUIVALENTS
                                 (IN THOUSANDS)
                                   (UNAUDITED)

<TABLE>
<CAPTION>
                                                                                    THREE MONTHS
                                                                                        ENDED
                                                                                      MARCH 31,
                                                                                --------------------
                                                                                  1999         1998
                                                                                ---------   ---------
<S>                                                                              <C>         <C>     
CASH FLOWS FROM OPERATING ACTIVITIES:
                Cash used in operations                                           $(3,586)   $(8,164)

CASH FLOWS FROM INVESTING ACTIVITIES:
                Sale of short-term investments, net of purchases and maturities     2,382     12,756
                Purchases of property and equipment                                (5,744)    (8,774)
                                                                                  -------    -------

Net cash (used in) provided by investing activities                                (3,362)     3,982

CASH FLOWS FROM FINANCING ACTIVITIES:
                Payments of equipment financing obligations                           (16)       (20)
                Issuance of common stock, net of issuance costs                        71        651
                                                                                  -------    -------

                Net cash provided by financing activities                              55        631
                                                                                  -------    -------

Net increase (decrease) in cash and cash equivalents                               (6,893)    (3,551)

Cash and cash equivalents at beginning of period                                   24,916     14,948
                                                                                  -------    -------

Cash and cash equivalents at end of period                                        $18,023    $11,397
                                                                                  -------    -------
                                                                                  -------    -------
</TABLE>


                          SEE ACCOMPANYING NOTES.

                                                              Page 5 of 17

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                        INHALE THERAPEUTIC SYSTEMS, INC.

                     NOTES TO CONDENSED FINANCIAL STATEMENTS
                                 MARCH 31, 1999
                                   (UNAUDITED)

1.    ORGANIZATION AND BASIS OF PRESENTATION

           Inhale Therapeutic Systems ("Inhale" or the "Company") was 
incorporated in the State of California in July 1990 and reincorporated in 
the State of Delaware in July 1998. Since inception, Inhale has been engaged 
in the development of systems for the pulmonary delivery of macromolecule 
drug therapies for systemic and local lung applications.

           The accompanying unaudited condensed financial statements of 
Inhale have been prepared by management 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, 1999 and the related statements of operations and cash flows for the 
three month periods ended March 31, 1999 and 1998, are unaudited but include 
all adjustments (consisting only of normal recurring adjustments) which 
Inhale considers necessary for a fair presentation of the financial position 
at such dates and the operating results and cash flows for those periods. 
Although Inhale 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 Inhale's Annual Report on Form 10-K 
for the year ended December 31, 1998 as filed with the Commission.

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

2.    COMPREHENSIVE LOSS

           Other comprehensive loss (primarily unrealized losses on available 
for sale securities) amounted to $13,000 and $27,000, respectively, for the 
three month periods ended March 31, 1999 and 1998.

3.    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 progress payments from collaborative research 
agreements are considered to be payments to support continued research and 
development activities under the agreements. In accordance with the Company's 
revenue recognition policy, these payments are included in deferred revenue 
and are recognized as the related research and development expenditures are 
incurred.

           Contract research revenue from one partner represented 77% of 
Inhale's revenue in the three month period ended March 31, 1999. Contract 
revenue from two partners accounted for 67% of Inhale's revenue in the 
corresponding period in 1998. Costs of contract research revenue approximate 
such revenue and are included in operating costs and expenses.

4.    NET LOSS PER SHARE

           Basic and diluted net loss per common share is computed in 
conformance with Statement of Financial Accounting Standards No. 128, 
"Earnings Per Share", which Inhale adopted in 1997. Accordingly, the weighted 
average number of common shares outstanding are used while common stock 
equivalent shares for stock options and warrants are not included in the per 
share calculations as the effect of their inclusion would be antidilutive.

                                                              Page 6 of 17
<PAGE>

5.    SEGMENT INFORMATION

           Management has organized Inhale's business in one operating 
segment which includes activities related to the development of systems for 
the pulmonary delivery of macromolecule drugs. Inhale's operations are 
presently located in the United States and Inhale derives all of its revenues 
within the United States.

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, 1999 and 1998 
should be read in conjunction with the Management's Discussion and Analysis 
of Financial Condition and Results of Operations included in Inhale's Annual 
Report on Form 10-K for the year ended December 31, 1998. The following 
discussion contains forward-looking statements that involve risk and 
uncertainties. Inhale'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 Inhale's Annual Report on Form 
10-K for the year ended December 31, 1998.

           Readers are cautioned not to place undue reliance on these 
forward-looking statements, which reflect management's analysis only as of 
the date hereof. Inhale 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. Inhale 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 commercial products and does not anticipate receiving 
revenue from product sales or royalties in the near future. For the period 
from inception through March 31, 1999, Inhale incurred a cumulative net loss 
of approximately $61.2 million. The sources of working capital have been 
equity financings, financings of equipment acquisitions and tenant 
improvements, interest earned on investments of cash, and revenues from 
short-term research and feasibility agreements and development contracts.

           Inhale typically has been compensated for research and development 
expenses during initial feasibility work performed under collaborative 
arrangements. Partners that enter into collaborative agreements will pay for 
research and development expenses and make additional payments to Inhale as 
Inhale 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, Inhale may enter into collaborative agreements under which 
Inhale's partners would manufacture or package powders or supply inhalation 
devices, thereby potentially limiting one or more sources of revenue for 
Inhale. To achieve and sustain profitable operations, Inhale, 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 Inhale can generate 
sufficient product or contract research revenue to become profitable or to 
sustain profitability.

RESULTS OF OPERATIONS

           Revenue in the first quarter of 1999 was $7.8 million compared to 
$3.9 million in the first quarter of 1998, an increase of approximately 100%. 
The increase in revenue was primarily due to the expansion of Inhale's 
existing collaborative agreement with Pfizer, Inc. and includes activities 
associated with the manufacture of Phase III clinical supplies. Revenue for 
the first quarter of 1999 and 1998 was comprised of reimbursed research and 
development expenses as well as the amortization of the pro-rata portion of 
up-front signing and progress payments received

                                                              Page 7 of 17
<PAGE>

from Inhale's collaborative partners. Recognition of up-front signing and 
progress payments is 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 $12.7 
million in the first quarter of 1999 from $7.2 million in the corresponding 
period of 1998, an increase of 76%. The increase was due to the continued 
expansion of the Company's manufacturing activities in order to support Phase 
III clinical trials. In addition, the company hired additional scientific and 
development personnel to handle an increase in the number of development 
projects and incurred increased expenses associated with device development. 
Inhale expects research, development and process development spending to 
increase over the next few years as Inhale expands its development efforts 
under collaborative agreements and scales up its commercial manufacturing 
facility.

           General and administrative expenses decreased to $1.3 million in 
the first quarter of 1999 from $1.9 million in the first quarter of 1998, an 
decrease of 32%. The decrease was due primarily to a change in the Company's 
methodology for allocating administrative costs to research and development 
expenses. In 1999 the Company began allocating human resources costs 
associated with supporting the Inhale organization including administrative 
staffing and business development and marketing activities. General and 
administrative expenses are expected to continue to increase over the next 
few years to support increasing levels of research, development and 
manufacturing activities.

           Net interest income decreased to $1.0 million in the first quarter 
of 1999 compared to $1.1 million in the first quarter of 1998, an decrease of 
9%. Interest income was earned on lower cash and investment balances held by 
Inhale in the three month period ended March 31, 1999, compared to the same 
period in 1998.

LIQUIDITY AND CAPITAL RESOURCES

           Inhale has financed its operations primarily through public and 
private placements of its equity securities, contract research and milestone 
payments, financing of equipment acquisitions and interest income earned on 
its investments of cash. At March 31, 1999, Inhale had cash, cash equivalents 
and short-term investments of approximately $73.6 million.

           Inhale's operations used cash of $3.6 million in the three months 
ended March 31, 1999, as compared to $8.2 million used in the three months 
ended March 31, 1998. The decrease in cash used in operations was due 
principally to the combination of decreased receivable and increased accrued 
liability balances at March 31, 1999 compared to the same period in 1998.

           Inhale purchased property and equipment of approximately $5.7 
million during the three months ended March 31, 1999, compared to $8.8 
million for the corresponding period in 1998. The decrease in purchased 
property and equipment is due to the fact that 1998 spending included costs 
related to the build out of Inhale's headquarters and first phase of its 
manufacturing plant located in San Carlos, California, which is now largely 
complete.

           Inhale expects its cash requirements to continue to increase at an 
accelerated rate 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 commercial manufacturing facility.

           Inhale believes that its cash, cash equivalents and short-term 
investments as of March 31, 1999, together with interest income and possible 
additional equipment financing, will be sufficient to meet its operating 
expense and capital expenditure requirements at least through the first half 
of 2000. However, Inhale'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 Inhale'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

                                                              Page 8 of 17
<PAGE>

status of competitive products. To satisfy its long-term needs, Inhale 
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 Inhale on favorable terms, if at 
all.

YEAR 2000 COMPLIANCE

           Inhale is aware of the issues associated with the programming code 
in existing computer systems as the millennium (Year 2000) approaches. The 
Year 2000 ("Y2K") problem is pervasive and complex as virtually every 
computer operation may be affected in some way by the rollover of the two 
digit year value to "00". The issue is whether systems will properly 
recognize date sensitive information when the year changes to 2000. If 
Inhale's software and firmware with date-sensitive functions are not Y2K 
compliant, they may recognize a date with "00" as the year 1900 rather than 
the year 2000. This could result in a system failure or miscalculations 
causing disruptions of operations, including, among other things, 
interruptions in manufacturing operations, a temporary inability to process 
transactions, or engage in similar normal business activities.

           Inhale is utilizing both internal and external resources to 
conduct a comprehensive review of its systems to identify those systems that 
could be affected by the Y2K problem and has developed an implementation plan 
to resolve the issue by the end of 1999. The scope of the Y2K effort includes 
information technology ("IT") such as software and hardware, non-IT systems 
or embedded technology such as microcontrollers contained in various 
manufacturing and lab equipment, environmental and safety systems, facilities 
and utilities, and the Y2K readiness of key third parties such as suppliers 
and financial institutions. A multi-step Y2K readiness plan has been 
developed for its internal systems. This plan includes the following 
elements: 1) Awareness - raising Inhale's awareness of the Y2K issue; 2) 
Discovery - keeping an inventory and monitoring the compliance status of key 
financial, informational and operations systems subject to Y2K issues; 3) 
Assessment - determining both the business impact of noncompliance and the 
likelihood of noncompliance from each of the entities in the inventory; 4) 
Validation Remediation - the process of validating entities to ascertain 
compliance and remediate non-compliant entities. As of March 1999, Inhale had 
completed the Awareness, Discovery and Assessment phases of the plan and is 
working on the Validation Remediation phase of the plan.

           Inhale has initiated formal communication with significant vendors 
and suppliers to determine the extent to which Inhale's operations are 
vulnerable to those third parties' failure to remediate their own Y2K issues. 
Suppliers of hardware, software or other products that might contain embedded 
processors were requested to provide information regarding Y2K compliance 
status of their products. Inhale will continue to seek information from 
non-responsive suppliers and plans to contact replacement vendors and 
suppliers through the second quarter of 1999 and then implement appropriate 
contingency plans. In addition, in order to protect against the acquisition 
of additional non-compliant products, Inhale now requires suppliers to 
warrant that products sold or licensed to Inhale are Y2K compliant. In the 
event that any of Inhale's significant suppliers do not successfully achieve 
Y2K compliance in a timely manner, Inhale's business or operations could be 
adversely affected. There can be no assurance that the systems of other 
companies on which Inhale's systems rely will be converted on a timely basis 
and would not have an adverse effect on Inhale's operations.

           As of March 31, 1999, Inhale has substantially developed a 
comprehensive contingency plan to address situations that may result if 
Inhale is unable to achieve Y2K readiness of its critical operations. The 
contingency plan will be implemented should situations occur where Inhale is 
unable to achieve Y2K readiness in its critical operations. There can be no 
assurance that Inhale will be able to develop a contingency plan that will 
adequately address issues that may arise in the year 2000. The failure of 
Inhale to develop and implement, if necessary, an appropriate contingency 
plan could have a material impact on the operations of Inhale. Finally, 
Inhale is also vulnerable to external forces that might generally affect 
industry and commerce, such as utility and transportation company Y2K 
compliance failures and related service interruptions.

           Inhale anticipates completing the mission critical, high impact 
Y2K issues by the first half of 1999, which is prior to any anticipated 
impact on its operating systems and expects the Y2K project to continue 
beyond the year 2000 with respect to the upgrading, replacement and testing 
of non-critical systems. These dates are contingent upon the timeliness and 
accuracy of software and hardware upgrades from vendors, adequacy and quality 
of resources available to work on completion of the project and any other 
unforeseen factors. The total expense of the Y2K project is currently 
estimated at approximately $750,000, of which approximately $350,000 has been 
spent through March 31, 1999, which is not material to Inhale's business 
operations or financial condition. The expenses of the Y2K project are being 
funded through operating cash flows.

                                                              Page 9 of 17
<PAGE>

           The costs of the project and the date on which Inhale believes it 
will complete the Y2K modifications are based on management's best estimates, 
which were derived utilizing numerous assumptions of future events, including 
the continued availability of certain resources, third-party modification 
plans and other factors. There can be no assurance that these estimates will 
be achieved and actual results could differ materially from those anticipated.

RISK FACTORS

WE DO NOT KNOW IF OUR DEEP LUNG DRUG DELIVERY SYSTEM IS TECHNICALLY FEASIBLE.

           We are in an early stage of development. There is a risk that our 
deep lung delivery technology will not be technically feasible. Even if our 
deep lung delivery technology is technically feasible, it may not be 
commercially accepted across a range of large and small molecule drugs. We 
have tested six of our thirteen deep lung delivery formulations in humans. 
The deep lung formulations tested in humans are insulin, interleukin-1 
receptor, salmon calcitonin, an osteoporosis drug and two small molecules.

           Many of the underlying drug compounds contained in our deep lung 
formulations have been tested in humans by other companies using alternative 
delivery routes. Our potential products require extensive research, 
development and pre-clinical (animal) and clinical (human) testing. Our 
potential products also may involve lengthy regulatory review before they can 
be sold. We do not know if and cannot assure that any of our potential 
products will prove to be safe and effective or meet regulatory standards. 
There is a risk that any of our potential products will not be able to be 
produced in commercial quantities at acceptable cost or marketed 
successfully. Our failure to achieve technical feasibility, demonstrate 
safety, achieve clinical efficacy, obtain regulatory approval or, together 
with partners, successfully market products will seriously impact the amount 
of our revenue and our results of operations.

WE DO NOT KNOW IF OUR DEEP LUNG DELIVERY SYSTEM IS EFFICIENT.

           We may not be able to achieve the total system efficiency needed 
to be competitive with alternative routes of delivery. System efficiency is 
the product of the deep lung bioavailability of a potential product and the 
percentage of each drug dose lost at various stages of the manufacturing and 
deep lung delivery process. Deep lung bioavailability is the percentage of a 
drug that is absorbed into the bloodstream when that drug is delivered 
directly to the lungs. This is the initial screen for whether deep lung 
delivery of any systemic drug is feasible.

WE DO NOT KNOW IF OUR DEEP LUNG DRUG FORMULATIONS ARE STABLE.

           We may not be able to identify and produce powdered versions of 
drugs that retain the physical and chemical properties needed to work with 
our delivery device. Formulation stability is the physical and chemical 
stability of the drug over time and under various storage conditions. 
Formulation stability will vary with each deep lung formulation and the type 
and amount of ingredients that are used in the formulation. We would not 
consider a drug to be a good candidate for development and commercialization 
if its dose loss is excessive at any one stage or cumulatively in the 
manufacturing and delivery process or if its deep lung bioavailability is too 
low. Problems with powdered drug stability would seriously impact our ability 
to develop and market our potential products.

WE DO NOT KNOW IF OUR DEEP LUNG SYSTEM IS SAFE.

           We may not be able to prove potential products to be safe.

           Our products require lengthy laboratory, animal and human testing. 
For most of our products we are in the early stage of human testing. If we 
find that any product is not safe, we will not be able to commercialize the 
product. The safety of our deep lung formulations will vary with each drug 
and the ingredients used in its formulation.

WE DO NOT KNOW IF OUR DEEP LUNG SYSTEM PROVIDES CONSISTENT DOSES OF MEDICINE.

           We may not be able to provide reproducible dosages of stable 
formulations sufficient to achieve clinical success. Reproducible dosing is 
the ability to deliver a consistent and predictable amount of drug into the 
bloodstream over time both for a single patient and across patient groups. 
Reproducible dosing requires the development of:

                                                             Page 10 of 17
<PAGE>

           -            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.

           We may not be able to develop reproducible dosing of any potential 
product. The failure to do so means that we would not consider it a good 
candidate for development and commercialization.

WE DO NOT KNOW IF OUR TECHNOLOGIES CAN BE INTEGRATED IN TIME TO BRING PRODUCT TO
MARKET.

           We may not be able to integrate all of the relevant technologies 
to provide an integrated deep lung delivery system. Our integrated approach 
to systems development relies upon several different but related technologies:

           -            dry powder formulations;

           -            dry powder processing technology;

           -            dry powder packaging technology; and

           -            deep lung delivery devices.

           At the same time we must:

           -            establish collaborations with partners;

           -            perform laboratory and clinical testing of potential 
                        products; and

           -            scale-up our manufacturing processes.

           We must accomplish all of these steps without delaying any aspect 
of technology development. Any delay in one component of product or business 
development could delay our ability to develop, obtain approval of or market 
therapeutic products using our deep lung delivery technology.

OUR DEEP LUNG DELIVERY SYSTEM MAY NOT BE COMMERCIALLY ACCEPTED.

           We may not be able to achieve commercial viability of our deep 
lung delivery system. In order to sell any potential product, we must make it 
commercially acceptable to the market. This means that we must:

           -            further refine our device prototype;

           -            complete scale-up of our powder processing system; and

           -            complete scale-up of our automated packaging system.

           The failure to demonstrate deep lung 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 will seriously impact the amounts of our revenues and 
our results of operations.

WE EXPECT TO CONTINUE TO LOSE MONEY FOR THE NEXT SEVERAL YEARS.

           We have never been profitable and, through March 31, 1999, have 
incurred a cumulative deficit of approximately $61.2 million. We expect to 
continue to incur substantial and increasing losses over at least the next 
several years as we expand our research and development efforts, testing 
activities and manufacturing operations, and as we complete our late stage 
clinical and early commercial production facility. All of our potential 
products are in

                                                             Page 11 of 17
<PAGE>

research or in the early stages of development except for our insulin 
collaboration. We have generated no revenues from approved product sales. Our 
revenues to date have consisted primarily of payments under short-term 
research and feasibility agreements and development contracts. To achieve and 
sustain profitable operations, we must, alone or with others, successfully 
develop, obtain regulatory approval for, manufacture, introduce, market and 
sell products using our deep lung drug delivery system. There is a risk that 
we will not generate sufficient product or contract research revenue to 
become profitable or to sustain profitability.

WE DEPEND ON PARTNERS FOR REGULATORY APPROVALS AND COMMERCIALIZATION OF OUR
PRODUCTS.

           Since Inhale is in the business of developing technology for 
delivering drugs to the lungs and licensing this technology to companies that 
make and sell drugs, we do not have the people and other resources to do the 
following things:

           -            make bulk drugs to be used as medicines;

           -            design and carry out large scale clinical studies;

           -            prepare and file documents necessary to obtain 
                        government approval to sell a given drug product;
                        and

           -            market and sell our products when and if they are 
                        approved.

           When Inhale signs a license agreement to develop a product with a 
drug company, the drug company agrees to do some or all of the things 
described above. If our partner fails to do any of these things, Inhale 
cannot complete the development of the product.

WE DO NOT KNOW IF WE WILL BE ABLE TO PRODUCE OUR PRODUCTS IN COMMERCIAL
QUANTITIES.

           We must scale-up our current powder processing and filling 
facilities and comply with the good manufacturing practice standards 
prescribed by the United States Food and Drug Administration and other 
standards prescribed by other regulatory agencies to achieve drug production 
levels that are adequate to support late stage human clinical testing and 
early commercial sales.

           We have no experience manufacturing products for large scale 
clinical testing or commercial purposes. We have only performed powder 
processing on the small scale needed for testing formulations and for early 
stage and larger clinical trials. We may encounter manufacturing and control 
problems as we attempt to scale-up powder processing facilities. We may not 
be able to achieve such scale-up in a timely manner or at a commercially 
reasonable cost, if at all. Our failure to solve any of these problems could 
delay or prevent late stage clinical testing and commercialization of our 
products and could seriously impact the amount of our revenues and our 
results of operations.

           To date, we have relied on one particular method of powder 
processing. There is a risk that this technology will not work with all drugs 
or that the drug losses will prohibit the commercial viability of certain 
drugs. Additionally, there is a risk that any alternative powder processing 
methods we may pursue will not be commercially practical for aerosol drugs or 
that we will not have or be able to acquire the rights to use such 
alternative methods.

           Our fine particle powders and small quantity packaging require 
special handling. We have designed and qualified small scale automated 
filling equipment for small quantity packaging of fine powders. We face 
significant technical challenges in scaling-up an automated filling system 
that can handle the small dose and particle sizes of our powders in 
commercial quantities. There is a risk that we will not be able to scale-up 
our automated filling equipment in a timely manner or at commercially 
reasonable costs. Any failure or delay in such scale-up would delay product 
development or bar commercialization of our products and will impact the 
level of our revenues and results of operations.

           We face many technical challenges in further developing our 
inhalation device to work with a broad range of drugs, to produce such a 
device in sufficient quantities and to adapt the device to different powder 
formulations. There is a risk that we will not successfully achieve any of 
these things. Our failure to overcome any of these challenges will impact our 
revenues and results of operations.

                                                             Page 12 of 17

<PAGE>

           For late stage clinical trials and initial commercial production, 
we intend to use one or more contract manufacturers to produce our device. 
There is a risk that we will not be able to enter into or maintain 
arrangements with any potential contract manufacturers, and that the failure 
to do so will impact our revenues and results of operations.

WE DO NOT KNOW IF THE MARKET WILL ACCEPT INHALE'S DEEP LUNG DELIVERY SYSTEM.

           The commercial success of our potential products depends upon 
market acceptance by health care providers, third-party payors, like health 
insurance companies and Medicare, and patients. Our products under 
development use a new method of drug delivery and there is a risk that our 
potential products will not be accepted by the market. Market acceptance will 
depend on many factors, including

           -            the safety and efficacy results of our clinical trials;

           -            favorable regulatory approval and product labeling;

           -            the frequency of product use;

           -            the availability of third-party reimbursement;

           -            the availability of alternative technologies; and

           -            the price of our products relative to alternative 
                        technologies.

           There is a risk that health care providers, patients or 
third-party payors will not accept our deep lung drug delivery system. If the 
market does not accept our potential products, our revenues and results of 
operations will be seriously impacted if our potential products are not 
accepted by the market.

OUR PATENTS MAY NOT PROTECT OUR PRODUCTS AND OUR PRODUCTS MAY INFRINGE ON THIRD
PARTY PATENT RIGHTS.

           Inhale has filed patent applications covering certain aspects of 
our device, powder processing technology, and powder formulations and deep 
lung route of delivery for certain molecules, and we plan to file additional 
patent applications. Currently we have 36 issued U.S. and foreign patents 
that cover certain aspects of our technology and we have a number of patent 
applications pending. There is a risk that any of the patents applied for 
will not issue, or that any patents that issue or have issued will not be 
valid and enforceable. Enforcing our patent rights would be time consuming 
and costly.

           We are aware of an alternate dry powder processing technology that 
we are not using for our current products under development but may desire to 
use for certain products in the future. The ownership of this powder 
processing technology is unclear. We are aware that multiple parties, 
including Inhale, claim patent, trade secret and other rights in the 
technology. If we determine that this alternate powder processing technology 
is relevant to the development of future products and further determine that 
a license to this alternate powder processing technology is needed, we cannot 
be certain that we can obtain a license from the relevant party or parties on 
commercially reasonable terms, if at all.

           Our access or our partners' access to the drugs to be formulated 
will affect our ability to develop and commercialize our technology. Many 
drugs, including powder formulations of certain drugs that are presently 
under development by us, are subject to issued and pending United States and 
foreign patents that may be owned by our competitors. We know that there are 
issued patents and pending patent applications relating to the deep lung 
delivery of large molecule drugs, including several for which we are 
developing deep lung delivery formulations. This situation is highly complex, 
and the ability of any one company, including Inhale, to commercialize a 
particular drug is unpredictable.

           We intend generally to rely on the ability of our partners to 
provide access to the drugs that are to be formulated by us for deep lung 
delivery. There is a risk that our partners will not be able to provide 
access to such drug candidates. Even if such access is provided, there is a 
risk that our partners or we will be accused of, or determined to be, 
infringing a third-party's patent rights and will be prohibited from working 
with the drug or be found liable for

                                                             Page 13 of 17
<PAGE>

damages that may not be subject to indemnification. Any such restriction on 
access to drug candidates or liability for damages would impact the level of 
our revenues and results of operations.

WE MAY NOT OBTAIN REGULATORY APPROVAL.

           There is a risk that we will not obtain regulatory approval for 
our products on a timely basis, or at all. Our product must undergo rigorous 
animal and human testing and an extensive review process mandated by the FDA 
and equivalent foreign authorities. This process generally takes a number of 
years and requires the expenditure of substantial resources although the time 
required for completing such testing and obtaining such approvals is 
uncertain. We have not submitted any of our products to the FDA for marketing 
approval. We have no experience obtaining such regulatory approval.

           In addition, we may encounter delays or rejections based upon 
changes in the United States Food and Drug Administration policy, including 
policy relating to good manufacturing practice compliance, during the period 
of product development. We may encounter similar delays in other countries.

           Even if regulatory approval of a product is granted, the approval 
may limit the indicated uses for which we may market our product. In 
addition, our marketed product, our manufacturing facilities and Inhale, as 
the manufacturer, will be subject to continual review and periodic 
inspections. Later discovery from such review and inspection of previously 
unknown problems may result in restrictions on our product or on us, 
including withdrawal of our product from the market. The failure to obtain 
timely regulatory approval of our products, any product marketing limitations 
or a product withdrawal would impact the level of our revenue and results of 
operations.

IF OUR PRODUCTS ARE NOT COST EFFECTIVE, GOVERNMENT AND PRIVATE INSURANCE PLANS
WILL NOT PAY FOR OUR PRODUCTS.

           In both domestic and foreign markets, sales of our 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, such 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. 
Legislation and regulations affecting the pricing of pharmaceuticals may 
change before our proposed products are approved for marketing. Adoption of 
such legislation and regulations could further limit reimbursement for 
medical products. A government third party payor decision to not provide 
adequate coverage and reimbursements for our products would limit market 
acceptance of such products.

OUR COMPETITORS MAY DEVELOP AND SELL BETTER DRUG DELIVERY SYSTEMS.

           We are aware of other companies engaged in developing and 
commercializing pulmonary drug delivery systems and enhanced injectable drug 
delivery systems. Many of these companies have greater research and 
development capabilities, experience, manufacturing, marketing, financial and 
managerial resources than we do and represent significant competition for us. 
Acquisitions of competing drug delivery companies by large pharmaceutical 
companies could enhance our competitors' financial, marketing and other 
resources. Accordingly, our competitors may succeed in developing competing 
technologies, obtaining United States Food and Drug Administration approval 
for products or gain market acceptance before us. We cannot assure that 
developments by others will not make our products or technologies 
uncompetitive or obsolete.

WE EXPECT OUR STOCK PRICE TO REMAIN VOLATILE.

           Our stock price is volatile. In the last twelve months our stock 
price ranged from $20.125 and $35.25 we expect it to remain volatile. A 
variety of factors may have a significant effect on the market price of our 
common stock, including:

           -            fluctuations in our operating results;

           -            announcements of technological innovations or new 
                        therapeutic products;

                                                             Page 14 of 17
<PAGE>

           -            announcement or termination of collaborative 
                        relationships by Inhale or our competitors;

           -            governmental regulation;

           -            clinical trial results;

           -            developments in patent or other proprietary rights;

           -            public concern as to the safety of drug formulations 
                        developed by Inhale or others; and

           -            general market conditions.

           Any litigation instigated against us as a result of this 
volatility could result in substantial costs and a diversion of our 
management's attention and resources, which could impact our revenues and 
results of operations.

INVESTORS SHOULD BE AWARE OF INDUSTRY-WIDE RISKS.

           In addition to the risks associated specifically with Inhale 
described above, investors should also be aware of general risks associated 
with drug development and the pharmaceutical industry. These include but are 
not limited to:

           -            handling of hazardous materials;

           -            hiring and retaining qualified people; and

           -            insuring against product liability claims.

ITEM 3 QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
There have been no material changes in the reported market risks since December
31, 1998.

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

Item 1.        Legal Proceedings - Not Applicable

Item 2.        Changes in Securities - None

Item 3.        Defaults upon Senior Securities - None

Item 4.        Submission of Matters to a Vote of Security Holders - None

Item 5.        Other Information- None

Item 6.        Exhibits and Reports on Form 8-K

            The following exhibits are filed herewith or incorporated by 
reference

    EXHIBIT                         EXHIBIT TITLE                            
- ----------------- -----------------------------------------------------------
2.1               Agreement and Plan of Merger Between Inhale Therapeutic
                  Systems, a California Corporation, and Inhale Therapeutic
                  Systems (Delaware), a Delaware Corporation
3.1               Certificate of Incorporation of the Registrant.
3.2               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.

                                                             Page 15 of 17
<PAGE>

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 January 28, 1997.
10.1 (4)          Registrant's 1994 Equity Incentive Plan, as amended (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 Inhale's
        Registration Statement (No. 33-75942), as amended.

(2)     Incorporated by reference to the indicated exhibit in Inhale's
        Registration Statement (No. 33-89502), as amended.

(3)     Incorporated by reference to the indicated exhibit in Inhale's Annual
        Report on Form 10-K for the year ended December 31, 1994.

(4)     Incorporated by reference to Inhale's Registration Statement on Form S-8
        (No. 333-59735).

(5)     Incorporated by reference to the indicated exhibit in Inhale's Quarterly
        Report on Form 10-Q for the quarter ended March 31, 1996.

(6)     Incorporated by reference to the indicated exhibit in Inhale's Annual
        Report on Form 10-K for the year ended December 31, 1995.

(7)     Incorporated by reference to the indicated exhibit in Inhale's Quarterly
        Report on Form 10-Q for the quarter ended June 30, 1996.

(8)     Incorporated by reference to the indicated exhibit in Inhale's Quarterly
        Report on Form 10-Q for the quarter ended September 30, 1996.

(9)     Incorporated by reference to Inhale's Registration Statement on Form S-3
        (No. 333-20787).

(b)    Reports on Form 8-K.
       none.

(c)    See Exhibits listed under Item 14(a)(3).

                                                             Page 16 of 17
<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, INC.




DATE: May 13, 1999                BY: /S/Robert B. Chess         
      ---------------                 ---------------------------
                                      Robert  B. Chess

                                      Co-Chief Executive Officer and Director
                                      (Duly Authorized Officer)

                                  BY: /S/Ajit S. Gill
                                      ---------------------------
                                      Ajit S. Gill

                                      Co-Chief Executive Officer and Director
                                      (Duly Authorized Officer)

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

                                                             Page 17 of 17


<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
QUARTERLY FINANCIAL STATEMENTS OF INHALE THERAPEUTIC SYSTEMS, INC. AS FILED ON
FORM 10Q FOR THE PERIOD ENDED MARCH 31, 1999 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               MAR-31-1999
<CASH>                                          18,023
<SECURITIES>                                    55,553
<RECEIVABLES>                                    2,435
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                76,807
<PP&E>                                          64,201
<DEPRECIATION>                                 (9,752)
<TOTAL-ASSETS>                                 131,349
<CURRENT-LIABILITIES>                           14,657
<BONDS>                                          4,925
                                0
                                          0
<COMMON>                                       172,920
<OTHER-SE>                                    (62,142)
<TOTAL-LIABILITY-AND-EQUITY>                   131,349
<SALES>                                              0
<TOTAL-REVENUES>                                 7,780
<CGS>                                                0
<TOTAL-COSTS>                                   13,980
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                (5,223)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (5,223)
<EPS-PRIMARY>                                   (0.31)
<EPS-DILUTED>                                   (0.31)
        

</TABLE>


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