Phase 1a1b Study Evaluating Safety and Effects of TRB-061 Given by Injection in Healthy Adults and Adults With Moderate-to-Severe Atopic Dermatitis

What this Trial Is About

Researchers are evaluating the safety, pharmacokinetics, and pharmacodynamics of TRB-061, a drug given by subcutaneous injection, in healthy adults and patients with moderate-to-severe atopic dermatitis AD. This Phase 1a1b randomized, double-blind, placebo-controlled study includes healthy participants and those with AD to better understand how TRB-061 behaves in the body and its effects. The study is divided into three parts to assess single and multiple doses in different groups. In Part 1, healthy participants receive a single ascending dose of TRB-061 or placebo and are followed for 12 weeks. Part 2 involves healthy participants receiving three doses of TRB-061 or placebo every four weeks over eight weeks, followed by a 10-week follow-up. Part 3 includes patients with moderate-to-severe AD randomized to receive either one of two doses of TRB-061 or placebo every four weeks for 12 weeks. Participants in Part 3 may opt into a crossover period where treatment assignments are switched for another 12 weeks, followed by a final follow-up until the end of the study. Participants will undergo safety assessments including monitoring of adverse events, pharmacokinetic blood tests, and clinical evaluations throughout the study and follow-up periods. Healthy participants are screened for general health and ECG abnormalities before enrollment, while AD patients must have a confirmed diagnosis and moderate-to-severe disease. Regular visits are scheduled for dosing and evaluations, and researchers will measure safety outcomes primarily by tracking adverse events from screening through follow-up. The study aims to complete by February 2028.

Phase 1a/1b Study of TRB-061 in Healthy Participants & Patients With Atopic Dermatitis