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Clinical Trial Summary

The purpose of this research study is to determine whether the study drug, EDP1815, is safe and effective in the treatment of atopic dermatitis compared with placebo. The study will look at different doses of the study drug, and whether there are differences when the drug is given once daily or twice daily.

Clinical Trial Description

Atopic dermatitis (atopic eczema) is a very common type of skin disease. It typically causes red, dry, and itchy skin and may have a significant impact on quality of life. Rashes may appear on the arms and behind the knees, or anywhere else on the body. While there are existing therapies, there is currently no cure for atopic dermatitis. This is a randomized, double blind, placebo controlled, parallel group, Phase 2 study to evaluate the efficacy and safety of EDP1815 in adult participants 18 to ≤75 years of age with mild, moderate, and severe atopic dermatitis (AD). Participants will be screened within 28 days prior to the first dose of study intervention to confirm study eligibility. Subjects must have mild, moderate, or severe AD involving at least 5% Body Surface Area (BSA); an Investigator Global Assessment (IGA) score of 2, 3, or 4; and an Eczema Area Severity Index (EASI) of at least 6 at screening and Day 1. All participants must agree to use a background therapy (per protocol) twice daily for at least 14 days prior to Day 1 in order to be considered eligible for the study. Approximately 300 participants will be randomized in a 1:1:1 ratio to one of three treatment cohorts, in which they will receive either EDP1815 or matching placebo in a 3:1 ratio, and therefore each participant has a 75% chance of receiving study treatment. Randomization will be stratified by baseline disease severity (mild [IGA = 2], moderate [IGA = 3] or severe [IGA = 4] AD). The investigational product will be administered either once or twice daily for 16 weeks. Background emollient (moisturizer) therapy must continue at least twice daily for the duration of the treatment and follow-up periods. Topical rescue therapy is allowed during the treatment period per protocol. The primary efficacy endpoint is achievement of an EASI-50 response at Week 16. Secondary efficacy endpoints will look at EASI, IGA, BSA, SCORAD, DLQI, Pruritus-NRS, Sleep Disturbance-NRS, POEM, and the need for rescue therapy at Weeks 4, 8, 12 and 16 (unless otherwise specified in the protocol). Safety and efficacy assessments will be conducted at the investigator site by a clinical assessor blinded to treatment assignment. Scheduled clinic study visits for all subjects will occur at Screening, Day 1, Week 2, Week 4, Week 8, Week 12, Week 16 (end of treatment) and Week 20 (post-treatment follow-up). Participants discontinuing early from the study will undergo a 28-day follow-up period, where possible. At the end of the 16-week study treatment, qualified participants completing the study will have the option to enter an open label study. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT05121480
Study type Interventional
Source Evelo Biosciences, Inc.
Contact Daniela Walker
Phone 617-577-0300
Email [email protected]
Status Not yet recruiting
Phase Phase 2
Start date November 30, 2021
Completion date November 11, 2022

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