To access the conference call, follow these instructions: Dial: (800) 299-0433 (U.S.); (617) 801-9712 (international) Passcode : 34860642 (Nektar Therapeutics is the host)An audio replay will also be available shortly following the call through Sunday, April 1, 2012 and can be accessed by dialing (888) 286-8010 (U.S.); or (617) 801-6888 (international) with a passcode of 45200354 In the event that any non-GAAP financial measure is discussed on the conference call that is not described in the press release, or explained on the conference call, related information will be made available on the Investor Relations page at the Nektar website as soon as practical after the conclusion of the conference call. About Nektar Nektar Therapeutics is a biopharmaceutical company developing novel therapeutics based on its PEGylation and advanced polymer conjugation technology platforms. Nektar has a robust R&D pipeline of potentially high-value therapeutics in oncology, pain and other therapeutic areas. In the area of pain, Nektar has an exclusive worldwide license agreement with AstraZeneca for NKTR-118, an investigational drug candidate, which is being evaluated in Phase 3 clinical studies as a once-daily, oral tablet for the treatment of opioid-induced constipation. This license agreement also includes NKTR-119, an earlier stage development program that is a co-formulation of NKTR-118 and an opioid. NKTR-181, a novel mu-opioid analgesic, has completed Phase 1 development and is being prepared for a Phase 2 study. NKTR-102 is being evaluated in a Phase 3 clinical study for the treatment of metastatic breast cancer and in Phase 2 studies for the treatment of ovarian and colorectal cancers.