Johnston

Researchers are evaluating the safety and effects of two study medicines, PF-07275315 and PF-07264660, for treating moderate to severe atopic dermatitis AD, a long-lasting itchy red rash caused by a skin reaction. The study includes adults aged 18 years or older who have had AD confirmed for at least six months and have not responded effectively to topical treatments. The study is a Phase 2 randomized, double-blind, placebo-controlled trial sponsored by Pfizer. The study consists of multiple stages. In Stage 1, participants received PF-07275315, PF-07264660, or a placebo for 12 weeks. Stage 2 involves PF-07275315 or placebo injections over 12 weeks. Stage 3 includes participants who previously received anti-inflammatory proteins, with treatment lasting up to 32 weeks. Stage 4 involves PF-07264660 or placebo injections for 12 weeks. All injections are given as multiple shots in a clinic setting. Participants will be in the study for up to 40 weeks in Stages 1, 2, and 4, and up to 52 weeks in Stage 3. Researchers will monitor skin improvements using measures such as the EASI75 score, which reflects a 75% improvement in eczema severity, along with other skin assessments, vital signs, ECG, and laboratory tests. Safety and treatment effects will be closely observed throughout the study period.

Researchers are studying Brivekimig, a medication given as a subcutaneous injection, in people with moderate to severe hidradenitis suppurativa HS. This Phase 2b, global, randomized, double-blind, placebo-controlled trial aims to evaluate the safety and effectiveness of different doses of Brivekimig for treating HS. Participants have had HS for at least six months and have moderate to severe symptoms affecting multiple areas of the body. Participants will be randomly assigned to receive one of three dosing regimens of Brivekimig or a matching placebo. The study drug is given through injections and the treatment period lasts up to approximately 48 weeks. Some participants may continue into a longer-term extension study, making total participation last up to about 52 to 60 weeks. The trial includes a maintenance period following the initial treatment. During the study, participants will have regular visits to assess their skin condition, pain levels, quality of life, and any side effects. Researchers will measure improvements using tools like the Hidradenitis Suppurativa Clinical Response HiSCR at various points up to Week 16. Safety will be monitored throughout the study, including tracking adverse events and laboratory tests. Participants drug levels and immune responses will also be checked. Overall, the trial will last up to about 60 weeks depending on extension participation.