Investigating Lunsekimig for Moderate-to-Severe Atopic Dermatitis

A Phase 2b, Randomized, Double-blind, Placebo-controlled, Multicenter Study to Assess the Efficacy and Safety of 3 Subcutaneous Dose Regimens of Lunsekimig (SAR443765) in Adult Participants With Moderate-to-severe Atopic Dermatitis

Phase 2 Interventional Sanofi · NCT06790121

This study is testing a new treatment called lunsekimig to see if it can help adults with moderate-to-severe eczema who haven't found relief from other creams.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment144 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorSanofi Industry-sponsored
Locations16 sites (Encino, California and 15 other locations)
Trial IDNCT06790121 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the efficacy and safety of lunsekimig, a subcutaneous treatment, in adults with moderate-to-severe atopic dermatitis who have not responded adequately to topical therapies. The study is designed as a Phase 2b, randomized, double-blind, placebo-controlled trial with multiple dosing regimens. Participants will be monitored over a period of approximately 36 weeks, which includes screening, treatment, and safety follow-up phases. The trial aims to determine the effectiveness of lunsekimig compared to a placebo in alleviating symptoms of atopic dermatitis.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 80 with a documented history of moderate-to-severe atopic dermatitis and inadequate response to topical therapies.

Not a fit: Patients with mild atopic dermatitis or those who have not tried topical treatments may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide significant relief for patients suffering from moderate-to-severe atopic dermatitis who have not benefited from existing topical treatments.

How similar studies have performed: Other studies have shown promise with similar biologic treatments for atopic dermatitis, indicating a potential for success with this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Participants must be 18 to 80 years of age, inclusive, at the time of signing the informed consent.
* Diagnosis of Atopic Dermatitis (AD) as defined by the American Academy of Dermatology (AAD) clinical guidelines (2023) for 1 year or longer at baseline (Day 1)
* Documented history within 6 months prior to Screening Visit, of either inadequate response or inadvisability of topical treatments
* Eczema Area and Severity Index (EASI) score of 16 or higher (range, 0 to 72) at baseline (Day 1)
* Validated Investigator Global Assessment Scale for Atopic Dermatitis (vIGA-AD) score of 3 or 4 at baseline visit (Day 1) (on the 0 to 4 vIGA-AD scale, a vIGA-AD score of 3 and 4 represents moderate and severe, respectively).
* AD involvement of 10% or more of Body Surface Are (BSA) at baseline (Day 1)
* Weekly average of daily Peak Pruritis-Numerical Rating (PP-NRS) score of ≥4 at baseline (Day 1)
* Must have applied a stable dose of topical bland emollient (simple moisturizer, no additives \[eg, urea\]) at least once daily for a minimum of 5 out of 7 consecutive days before baseline (Day 1).

Exclusion Criteria:

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

* Skin comorbidity that would adversely affect the ability to undertake AD assessments (eg, psoriasis, tinea corporis, and lupus erythematosus) according to the Investigator's judgment.
* Known history of, or suspected, significant current immunosuppression

NOTE: The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial

Where this trial is running

Encino, California and 15 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Dermatitis Atopic
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.