Exhibit 99.1 [ARADIGM LOGO] MEDIA: INVESTORS: Chris Keenan Joe Dorame Aradigm RCG Capital Markets Group, Inc. (510) 265-9370 (480) 675-0400 ARADIGM CORPORATION REPORTS THIRD QUARTER AND NINE MONTH 2003 FINANCIAL RESULTS HAYWARD, Calif., November 5, 2003 -- Aradigm Corporation (Nasdaq: ARDM) today announced financial results for the third quarter and nine months ended September 30, 2003. Contract revenues for the quarter were $9.8 million, compared to $6.0 million for the same period in 2002. The majority of these revenues were derived from the collaboration agreement with Novo Nordisk A/S to develop the AERx(R) insulin Diabetes Management System (iDMS). Total operating expenses for the third quarter were $14.4 million, compared to $16.3 million for the same quarter 2002. The Company reported net loss applicable to common shareholders for the third quarter 2003 of $4.5 million, or $0.08 per share, compared with a loss of $10.3 million, or $0.34 per share, for the same period in 2002. "The company's efforts during the quarter focused on continuing support of our ongoing AERx iDMS Phase 3 clinical trials, as well as moving our Intraject(R) program into the development phase as positive results from our configuration trial were recently announced," said Richard Thompson, Chairman and Chief Executive Officer of Aradigm. "We continue to manage our cash resources efficiently while effectively integrating the Intraject acquisition into our portfolio." Contract revenues for the nine months ended September 30, 2003 were $26.9 million, compared with $21.4 million for the same period in 2002. Total operating expenses for the nine months ended September 30, 2003 were $46.9 million, compared with $50.5 million for the same period in 2002. The net loss for the nine months ended September 30, 2003 was $19.9 million, or $0.42 per share, compared with a net loss of $28.8 million, or $0.96 per share, for the same period in 2002. As of September 30, 2003, cash, cash equivalents, and all investments totaled approximately $14.3 million. Immediately after the quarter end, on October 2, 2003, the company received an $8.9 million payment related to a scheduled quarterly payment and previously unreimbursed expenses for partner-funded projects. This was recorded as a receivable in the quarterly financials. OPERATIONAL HIGHLIGHTS - - During the quarter, the company announced the publication of clinical data involving the AERx Pain Management System in the peer reviewed journal Anesthesiology. Results from this study involving 89 patients following orthopedic bunionectomy surgery demonstrated that inhalation of morphine via the AERx System was safe, well-tolerated and produced comparable pain relief to intravenous morphine. - - In September, the company announced the results from a study of its Intraject platform showing that three configurations of the system achieved acceptable performance, eliminating the incidence of wet injection reported previously. Aradigm will move forward with one of the three configurations to be then used by its potential partners. CONFERENCE CALL The company will host a conference call and question and answer session at 4:30 pm Eastern Time, 1:30 pm Pacific Time today to discuss these financial results. Dial toll-free 1 (800) 559-2403 to access the conference call. International callers dial +1 (847) 619-6534. The event webcast can be found under the investor relations section of: www.aradigm.com. The webcast and audio replay of the conference call will be available following the call, which can be accessed on www.aradigm.com or by dialing toll-free 1 (877) 213-9653. International callers should dial +1 (630) 652-3041. The replay passcode is 7908689. Aradigm is working to improve the quality of life for patients through the development of its innovative needle-free drug delivery platforms. The Company's AERx(R) advanced pulmonary delivery platform and its Intraject(R) needle-free injector system provide leading pharmaceutical and biotechnology partners with effective drug delivery solutions. Aradigm's technologies both use liquid drug formulations to deliver drugs to the targeted area of either the lung, or the systemic circulation. The company's most advanced product is in Phase 3 clinical trials for the treatment of diabetes in a partnership with Novo Nordisk, a world leader in diabetes care. More information about Aradigm can be found at www.aradigm.com. Except for the historical information contained herein, this news release contains forward-looking statements that involve risk and uncertainties, including clinical results, the timely availability and acceptance of new products, the impact of competitive products and pricing, and the management of growth, as well as the other risks detailed from time to time in Aradigm Corporation's Securities and Exchange Commission (SEC) Filings, including the company's Annual Report on Form 10-K, and quarterly reports on Form 10-Q. AERx, and Intraject are registered trademarks of Aradigm Corporation. < Financial charts follow > ARADIGM CORPORATION CONDENSED STATEMENTS OF OPERATIONS (IN $000'S, EXCEPT PER SHARE INFORMATION) THREE MONTHS ENDED NINE MONTHS ENDED SEPTEMBER 30, SEPTEMBER 30, ---------------------- ---------------------- 2003 2002 2003 2002 -------- -------- -------- -------- (UNAUDITED) (UNAUDITED) Contract revenues - From related parties $ 9,840 $ 5,525 $ 26,664 $ 19,682 Contract revenues - Other 3 426 247 1,682 -------- -------- -------- -------- Total Contract revenues 9,843 5,951 26,911 21,364 -------- -------- -------- -------- Operating expenses: Research and development 11,988 13,660 $ 38,988 42,561 General and administrative 2,428 2,636 $ 7,941 7,903 -------- -------- -------- -------- Total operating expenses 14,416 16,296 46,929 50,464 -------- -------- -------- -------- Loss from operations (4,573) (10,345) (20,018) (29,100) -------- -------- -------- -------- Interest income 68 164 $ 262 664 Interest expense and other (27) (100) $ (122) (349) -------- -------- -------- -------- Net loss $ (4,532) $(10,281) $(19,878) $(28,785) ======== ======== ======== ======== Basic and diluted net loss per share $ (0.08) $ (0.34) $ (0.42) $ (0.96) Shares used in computing basic and diluted net loss per share 54,263 30,597 47,088 29,958 ======== ======== ======== ======== ARADIGM CORPORATION CONDENSED BALANCE SHEETS (IN $000'S) SEPTEMBER 30, DECEMBER 31, 2003 2002 ------------- ------------ (UNAUDITED) ASSETS Current assets: Cash, cash equivalents & short-term investments $14,318 $29,890 Receivables 8,959 282 Other current assets 1,839 1,593 ------- ------- Total current assets 25,116 31,765 Property and equipment, net 63,885 63,233 Notes receivable from officers 317 169 Long-term investments 0 1,553 Other assets 394 409 ------- ------- Total assets $89,712 $97,129 ======= ======= LIABILITIES, REDEEMABLE CONVERTIBLE PREFERRED STOCK AND SHAREHOLDERS' EQUITY Current liabilities: Accounts payable $ 1,146 $ 1,951 Accrued clinical and cost of other studies 214 291 Accrued compensation 3,875 2,195 Deferred revenue 8,281 10,682 Current portion of capital lease obligations 645 1,753 Other accrued liabilities 748 407 ------- ------- Total current liabilities 14,909 17,279 Noncurrent portion of deferred revenue 4,782 6,170 Noncurrent portion of capital lease obligations 0 497 Noncurrent portion of deferred rent 1,270 1,108 Redeemable convertible preferred stock 23,669 30,665 Shareholders' equity 45,082 41,410 ------- ------- Total liabilities, redeemable convertible preferred stock and shareholders' equity $89,712 $97,129 ======= =======