Positive Results for NKTR-118 (oral PEG-naloxol) Presented at American Academy of Pain Manageme...(ing but not limited to: (i) clinical tri...),Health

Date:9/26/2007

ing but not limited to: (i) clinical trials for NKTR-118 are long, expensive and uncertain processes, (ii) because the NKTR-118 product development program is in the early phases of clinical development, the risk of failure is high and can occur at any stage of development, (iii) the company may fail to obtain regulatory approval of NKTR-118, (iv) potential competition from approved drugs or drugs under development that may be safe and effective for the same indication as that targeted by NKTR-118, and (v) the company's patent applications for NKTR-118 may fail to issue; patents that have issued may not be enforceable; or unanticipated intellectual property licenses from third parties may be required in the future. Other important risks and uncertainties are detailed in the company's reports and other filings with the SEC; including its most recent Annual Report on Form 10-K and Quarterly Report on Form 10-Q. Actual results could differ materially from the forward-looking statements contained in this press release. The company undertakes no obligation to update forward-looking statements, whether as a result of new information, future events, or otherwise.

Contacts:

Tim Warner (650) 283-4915 or twarner@nektar.com; Stephan Herrera

(415) 488-7699 or sherrera@nektar.com; Jennifer Ruddock (650) 631-4954 or

jruddock@nektar.com

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SOURCE Nektar Therapeutics Copyright©2007 PR Newswire. All rights reserved

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