Nektar Therapeutics announced that new data from the ongoing REZOLVE-AD Phase 2b study of rezpegaldesleukin, an IL-2 pathway agonist and regulatory T-cell (Treg) proliferator, in atopic dermatitis has been accepted for a late-breaking oral abstract presentation at the American College of Allergy, Asthma & Immunology (ACAAI) 2025 Annual Scientific Meeting. The meeting will be held in Orlando, USA, from November 6 to 10, 2025. By activating these cells, rez pegaldesleukin may act to bring the immune system back into balance.

In February 2025, the U.S. Food and Drug Administration (FDA) granted Fast Track designation for rezpegaldesleUKin for the treatment of adult and pediatric patients 12 years of age and older who weigh at least 40 kg. Rezpegaldesleukin is being developed as a self-administered injection for a number of autoimmune and inflammatory diseases. Atopic dermatitis is the most common type of eczema, affecting approximately 30 million people in the United States.1 AD is characterized by a defect in the skin barrier, which allows allergens and other irritants to enter the skin, leading to an immune reaction and inflammation.