Initiation of a Phase 1b Clinical Study of NKTR-

Nektar Therapeutics Announces Initiation of a Phase 1b Clinical Study of NKTR-358, a First-in-Class Regulatory T Cell Stimulator, in Patients with Systemic Lupus Erythematosus…

Nektar Therapeutics (NKTR) today announced that it has commenced dosing patients with systemic lupus erythematosus (SLE) in a Phase 1b clinical study evaluating NKTR-358, a first-in-class regulatory T cell stimulator. NKTR-358 selectively stimulates the proliferation and activation of regulatory T cells (Tregs) in the body in order to restore the body’s self-tolerance mechanisms. Unlike immunosuppressant medicines that treat the symptoms of autoimmune disease by inhibiting the entire immune system which can cause unwanted side effects, NKTR-358 is designed to correct the underlying immune system dysfunction found in patients with immune disorders such as SLE.

The Phase 1b study is a double-blind, randomized, placebo-controlled study to evaluate the safety, tolerability, pharmacokinetics and immunological effects of multiple ascending doses of NKTR-358 in approximately 50 patients with systemic lupus erythematosus (SLE). The study will also evaluate the effects of NKTR-358 on disease activity in SLE patients.