Nektar Therapeutics Inc was incorporated in July 1990 and reincorporated in Delaware in 1998. The Company is a clinical-stage biopharmaceutical company developing a pipeline of drug candidates that utilize its PEGylation and polymer conjugate technology platforms, which are designed to improve the benefits of drugs for patients. Its current proprietary pipeline is comprised of drug candidates across a number of therapeutic areas including oncology, pain, anti-infectives, anti-viral and immunology. Its research and development activities involve small molecule drugs, peptides and other potential biologic drug candidates. The Company creates its drug candidates by using its proprietary advanced polymer conjugate technologies and expertise to modify the chemical structure of drugs to create new molecular entities. The Company's drug candidates are designed to improve the pharmacokinetics, pharmacodynamics, half-life, bioavailability, metabolism or distribution of drugs and improve the overall benefits and use of a drug for the patient. Its proprietary drug candidate, NKTR-118, is an oral peripherally-acting opioid antagonist, currently in Phase 3 clinical studies for the treatment of opioid-induced constipation (OIC) in patients with non-cancer pain and cancer pain. OIC is a common side effect of prescription opioids when used for chronic pain management. In September 2009, the Company entered into a global license agreement with AstraZeneca AB for the development and commercialization of NKTR-118 and NKTR-119. NKTR-119 is an early stage research and development program that is designed to combine various opioids with NKTR-118. AstraZeneca is responsible for all clinical, regulatory and commercialization costs for NKTR-118 and NKTR-119. The Company has several proprietary pre-clinical and clinical drug candidates that are in the pain therapeutic area. NKTR-181 is an orally-available mu-opioid analgesic molecule with a long-acting profile to treat chronic pain that has been designed with the objective of addressing serious CNS-related side effects associated with standard opioid therapies. The Company also has a collaboration with Bayer Healthcare LLC "Bayer" to develop BAY41-6551 (Amikacin Inhale, formerly known as NKTR-061), which is an inhaled solution of amikacin, an aminoglycoside antibiotic. Bayer has initiated a Phase 3 clinical development of BAY41-6551 with the first patient enrolled in April 2013. The Company frequently competes with pharmaceutical companies and other institutions. As a manufacturer of PEG reagents for the U.S. market, the Company is subject to inspections by the FDA for compliance with cGMP and other U.S. regulatory requirements, including U.S. federal, state and local regulations regarding environmental protection and hazardous and controlled substance controls, among others. Environmental laws and regulations are complex, change frequently and have tended to become more stringent over time.