Sienna Biopharmaceuticals

Sienna Biopharmaceuticals, Inc. is a clinical-stage biopharmaceutical company that specializes in the development of innovative therapies for dermatological conditions. The company focuses on immunology and inflammation, targeting specific pathways in the skin. Its lead product candidates include SNA-120, a first-in-class inhibitor currently undergoing Phase IIb clinical trials for psoriasis and associated itching, and SNA-125, a dual Janus kinase 3 inhibitor in Phase I/II trials aimed at treating atopic dermatitis and psoriasis. Additionally, Sienna is developing SNA-001, a topical silver particle suspension in pivotal trials for acne treatment and the reduction of light-pigmented hair. Founded in 2010 and headquartered in Westlake Village, California, Sienna Biopharmaceuticals has experienced significant operational challenges, filing for Chapter 11 bankruptcy in 2019, which was later converted to Chapter 7. The company, previously known as Sienna Labs, Inc., rebranded in February 2016 to better reflect its focus on dermatology and aesthetics.