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RECRUITING
NCT07527923
PHASE1

First-in-Human Trial to Assess REGN20423 in Healthy Adult Participants and Adult Participants With Atopic Dermatitis

Sponsor: Regeneron Pharmaceuticals

View on ClinicalTrials.gov

Summary

This study will test a study medicine called REGN20423 to see how effective it is in healthy participants (in Part A) and participants with atopic dermatitis (eczema) (in Part B). REGN20423 is a study medicine that is only used in clinical studies. REGN20423 has not previously been studied in humans. The study is looking at: * What side effects REGN20423 might cause * How much REGN20423 is in the blood at different times * How well REGN20423 works in adults with atopic dermatitis * Whether the body makes antibodies against REGN20423 * How the body changes after having REGN20423, which can help researchers understand why REGN20423 works better in some people than others * What the best dose of REGN20423 is

Official title: A Two-Part Phase 1, Randomized, Double-Blind, Placebo-Controlled First-in-Human Study to Assess the Safety, Tolerability, Pharmacokinetics, and Immunogenicity of REGN20423 in Adult Healthy Participants and Adult Participants With Atopic Dermatitis

Key Details

Gender

All

Age Range

18 Years - 65 Years

Study Type

INTERVENTIONAL

Enrollment

144

Start Date

2026-05-22

Completion Date

2028-06-23

Last Updated

2026-10-07

Healthy Volunteers

Yes

Interventions

DRUG

REGN20423

Administered per the protocol

OTHER

Placebo

Administered per the protocol

Locations (7)

Cahaba Dermatology & Skin Health Center, LLC

Birmingham, Alabama, United States

Arkansas Research Trials

North Little Rock, Arkansas, United States

Alliance Clinical West Hills (Focus Clinical Research)

West Hills, California, United States

Florida International Research Center

Miami, Florida, United States

National Allergy and Asthma Research, LLC

North Charleston, South Carolina, United States

Texas Dermatology and Laser Specialists

San Antonio, Texas, United States

Center for Clinical Pharmacology University Hospitals Leuven (UZ Leuven)

Leuven, Vlaams-Brabant, Belgium