A Study to Evaluate the Efficacy and Safety of Subcutaneous Amlitelimab in Participants Aged 12 Years and Older With Moderate-to-severe Atopic Dermatitis on Background Topical Corticosteroids

Research Study on Investigational Medication for Moderate-to-Severe Atopic Dermatitis

Recruiting
12 years or above
All
Phase 3
496 participants needed
37 Locations

Study Overview

This is a parallel group, Phase 3, multinational, multicenter, randomized, double-blind, placebo controlled, 3-arm study for treatment of participants diagnosed with moderate-to-severe atopic dermatitis (AD) with a history of inadequate response of topical treatment, on background topical corticosteroid (TCS) and/or topical calcineurin inhibitor (TCI).

The purpose of this study is to measure the efficacy and safety of treatment with amlitelimab solution for subcutaneous (SC) injection compared with placebo in participants with moderate to severe AD aged 12 years and older on background TCS and/or TCI.

Study details include:

At the end of the treatment period, participants will have an option to enter a separate study: the blinded extension study EFC17600 (ESTUARY).

For participants not entering the blinded extension Study EFC17600 (ESTUARY), the study duration will be up to 44 weeks including a 2 to 4-week screening, a 24-week randomized double-blind period, and a 16-week safety follow-up.

For participants entering the blinded extension Study EFC17600 (ESTUARY), the study duration will be up to 28 weeks including a 2 to 4-week screening and a 24-week randomized double-blind period.

The total treatment duration will be up to 24 weeks. The total number of visits will be up to 10 visits (or 9 visits for those entering the blinded extension study EFC17600 (ESTUARY).

Eligibility Criteria

You may be eligible for this study if you meet the following criteria:

  • Conditions: Dermatitis Atopic
  • Age: 12 years or above
  • Gender: All

Inclusion Criteria:

  • Participants must be 12 years of age (when signing informed consent form)
  • Diagnosis of AD for at least 1 year (defined by the American Academy of Dermatology Consensus Criteria)
  • Documented history (within 6 months before screening) of inadequate response to topical treatments, and/or inadequate response to systemic therapies (within 12 months before screening)
  • v-IGA-AD of 3 or 4 at baseline visit
  • EASI score of 16 or higher at baseline
  • AD involvement of 10% or more of BSA at baseline
  • Weekly average of daily PP-NRS of ≥ 4 at baseline visit.
  • Able and willing to comply with requested study visits and procedures
  • Body weight ≥25 kg

Exclusion Criteria:

Participants are excluded from the study if any of the following criteria apply:

  • Skin co-morbidity that would adversely affect the ability to undertake AD assessments
  • Known history of or suspected significant current immunosuppression
  • Any malignancies or history of malignancies prior to baseline (with the exception of non-melanoma skin cancer excised and cured >5 years prior to baseline)
  • History of solid organ or stem cell transplant
  • Any active or chronic infection including helminthic infection requiring systemic treatment within 4 weeks prior to baseline
  • Positive for human immunodeficiency virus (HIV), Hepatitis B or hepatitis C at screening visit
  • Having active tuberculosis (TB), latent TB, a history of incompletely treated TB, suspected extrapulmonary TB infection, or who are at high risk of contracting TB
  • Having received any of the specified therapy within the specified timeframe(s) prior to the baseline visit
  • In the Investigator's opinion, any clinically significant laboratory results or protocol specified laboratory abnormalities at screening
  • History of hypersensitivity or allergy to any of the excipients or investigational medicinal product (IMP)

The above information is not intended to contain all considerations relevant to a potential participation in a clinical trial

Updated on 04 Apr 2025. Study ID: NCT06224348

This study investigates the treatment of moderate-to-severe atopic dermatitis (AD), a skin condition causing itchy and inflamed skin, in individuals who have not responded well to topical treatments. The purpose of this study is to compare the safety and effectiveness of an investigational medication given by injection to a placebo, which is an inactive substance that looks like the investigational medication but does not contain any medicine. Participants will also continue using their regular topical treatments.

Participants will undergo various study procedures including regular skin assessments and health check-ups. The study has three arms, meaning participants will be randomly assigned to one of three treatment groups. Some will receive the investigational medication while others will receive a placebo. The study is double-blind, meaning neither the participants nor the researchers will know who is receiving which treatment until the study is completed.

  • Who can participate: Participants must be 12 years or older with a diagnosis of atopic dermatitis for at least one year. They should have an inadequate response to topical or systemic treatments and meet specific skin condition criteria at the start of the study.
  • Study details: Participants will receive either the investigational medication or a placebo, alongside their regular topical treatments. They will have regular check-ups and assessments to monitor their condition and response.
  • Study Timelines and Visits: The study will last up to 44 weeks. The study requires up to 10 visits.

Pre-Screener

Check if you are eligible Enter contact information Select a study center Select best time to contact

Have you been diagnosed with atopic dermatitis (ecxema) for one year or longer?

Atopic dermatitis, often referred to as eczema, is a chronic skin condition characterized by red, itchy, and inflamed patches of skin. Symptoms can vary from person to person and can be triggered or worsened by factors like certain soaps, detergents, allergens, and changes in weather.


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