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A Phase 3 Study of Rezpegaldesleukin (NKTR-358) for Patients ≥ 12 Years of Age With Moderate-to-Severe Atopic Dermatitis

RecruitingPhase 3

A Phase 3, Randomized, Double-Blind, Parallel-Group, Placebo-Controlled Study to Evaluate the Efficacy and Safety of Rezpegaldesleukin (NKTR-358) Monotherapy in the Treatment of Patients ≥ 12 Years of Age With Moderate-to-Severe Atopic Dermatitis

Who can join

Ages 12 and older · All sexes

Full eligibility criteria
Inclusion Criteria:

* Male or female patients, ≥ 12 years of age on the day of signing the informed consent form and weighing ≥ 40 kg prior to randomization at Baseline
* Chronic atopic dermatitis (AD) defined as onset of AD signs and symptoms ≥ 12 months prior to Screening as determined by the Investigator through patient interview and/or review of medical history at the Screening Visit
* Patients must meet the following AD severity criteria:
* IGA score ≥ 3 (scale of 0 to 4) at Screening and Baseline
* ≥ 10.0% of BSA involvement at Screening and Baseline
* EASI ≥ 16.0 at Screening and Baseline
* Are candidates for systemic therapy and have history, documented by a physician and/or the Investigator, of inadequate response to existing topical medications within 6 months preceding Screening, or history of intolerance to a topical therapy
* Provide written, informed consent to participate in the study and follow the study procedures, including compliance with the use of highly effective contraceptives

Exclusion Criteria:

* Are currently experiencing or have a history of concomitant skin conditions other than AD, including skin infection in the area affected by the patient's AD that requires treatment with systemic antimicrobial therapy
* Are currently experiencing or have a history of unstable course of AD
* History of chronic idiopathic urticaria at any time or urticaria from other causes within 4 weeks prior to randomization at the Baseline Visit.
* Have a history of TCS use suggestive of a high risk for topical corticosteroid (TCS) withdrawal
* Have received any of the following treatments at any time before Screening: aldesleukin; investigational IL-2 analog; systemic biologic; oral JAKi; or any prior investigational agent for AD
* Have a current or recent acute, active infection

About the study

This is an interventional, randomized, parallel group, treatment, Phase 3, double blind study to assess the effect of Rezpegaldesleukin in participants 12 years of age or older with moderate to severe atopic dermatitis, as compared to placebo.

The estimated participant overall duration is approximately 15 months.

What is being tested

Sponsor: Nektar Therapeutics · Participants: 510 · Started: Jun 29, 2026

Contact the study team

Official record on ClinicalTrials.gov — NCT07690371

Locations in the U.S.

ArizonaNektar Investigative Site, Phoenix
ArkansasNektar Investigative Site, North Little Rock
CaliforniaNektar Investigative Site, Fountain Valley
Nektar Investigative Site, Los Angeles
FloridaNektar Investigative Site, Boca Raton
Nektar Investigative Site, St. Petersburg
Nektar Investigative Site, Tampa
GeorgiaNektar Investigative Site, Macon
IdahoNektar Investigative Site, Boise
IllinoisNektar Investigative Site, Normal
KentuckyNektar Investigative Site, Bowling Green
Nektar Investigative Site, Owensboro
LouisianaNektar Investigative Site, Lafayette
NebraskaNektar Investigative Site, Omaha
New JerseyNektar Investigative Site, Clifton
New YorkNektar Investigative Site, New York
Nektar Investigative Site, New York
North CarolinaNektar Investigative Site, Wilmington
OklahomaNektar Investigative Site, Oklahoma City

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.