Press Release

SAN FRANCISCO, Calif., Feb. 24, 2012 /PRNewswire/ -- Nektar Therapeutics (Nasdaq: NKTR) will announce its financial results for the fourth quarter ended December 31, 2011 on Wednesday, February 29, 2012, after the close of U.S.-based financial markets. Howard Robin, president and chief executive officer, will host a conference call to review the results beginning at 5:00 p.m. Eastern Time (ET)/2:00 p.m. Pacific Time (PT).

The press release and a live audio-only Webcast of the conference call can be accessed through a link that is posted on the home page and Investor Relations section of the Nektar website: http://www.nektar.com. The web broadcast of the conference call will be available for replay through Sunday, April 1, 2012.

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.

Nektar's technology has enabled seven approved products in the U.S. or Europe through partnerships with leading biopharmaceutical companies, including UCB's Cimzia® for Crohn's disease and rheumatoid arthritis, Roche's PEGASYS® for hepatitis C and Amgen's Neulasta® for neutropenia. Additional development stage products that leverage Nektar's proprietary technology platform include peginesatide, for which Affymax and partner Takeda submitted an new drug application to the United States Food and Drug Administration in May 2011, and Baxter's BAX 855, a long-acting PEGylated rFVIII program which is in Phase 1 clinical development.

Nektar is headquartered in San Francisco, California, with additional R&D operations in Huntsville, Alabama and Hyderabad, India. Further information about the company and its drug development programs and capabilities may be found online at http://www.nektar.com.

SOURCE Nektar Therapeutics