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Rezpegaldesleukin

Phase 3

Moderate-to-Severe Atopic Dermatitis | Small molecule | Dermatology |Nektar Therapeutics|Last Updated: Jul 17, 2026

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Market & Valuation
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials2
Total Enrollment1,020
FDA Designations
FAST_TRACK
Clinical trial landscape

Rezpegaldesleukin · 4 trials · 3 indications

Phase 3 2Phase 2 2
NCT07711418A Phase 3 Study of Rezpegaldesleukin (NKTR-358) for Patients ≥ 12 Years of Age With Moderate-to-Severe Atopic DermatitisModerate-to-Severe Atopic Dermatitis
RECRUITING510 Analytics
NCT07690371A Phase 3 Study of Rezpegaldesleukin (NKTR-358) for Patients ≥ 12 Years of Age With Moderate-to-Severe Atopic DermatitisModerate-to-Severe Atopic Dermatitis
RECRUITING510 Analytics
PHASE3RECRUITING
A Phase 3 Study of Rezpegaldesleukin (NKTR-358) for Patients ≥ 12 Years of Age With Moderate-to-Severe Atopic Dermatitis
Moderate-to-Severe Atopic DermatitisUnlock trial analytics
PHASE3RECRUITING
A Phase 3 Study of Rezpegaldesleukin (NKTR-358) for Patients ≥ 12 Years of Age With Moderate-to-Severe Atopic Dermatitis
Moderate-to-Severe Atopic DermatitisUnlock trial analytics
Study Endpoints
Primary Endpoints
US only: Number of participants with an Investigator's Global Assessment (IGA) score of 0 or 1 and reduction ≥ 2 points from baseline at Week 24
Week 0 and Week 24

The IGA scale ranges from 0 to 4, with higher score indicating more severe disease.

Non-US regions only: Number of participants with an Investigator's Global Assessment (IGA) score of 0 or 1 at Week 24
Week 0 and Week 24

The IGA scale ranges from 0 to 4, with higher score indicating more severe disease.

Non-US regions only: Number of participants with a ≥ 75% reduction in Eczema Area and Severity Index (EASI) score from baseline at Week 24 (EASI-75)
Week 0 and Week 24

The EASI scores range from 0 to 72, with higher scores indicating more severe atopic dermatitis.

Percent change from baseline in Severity of Alopecia Tool (SALT) score at Week 36
Baseline and Week 36

The SALT score is the sum of percentage of hair loss in all areas with a maximum score of 100 (higher score indicates greater hair loss).

Mean percent change in the Eczema Area and Severity Index (EASI) from baseline at Week 16
Week 0 and Week 16

The EASI scores range from 0 to 72, with higher scores indicating more severe atopic dermatitis.

Secondary Endpoints
US only: Number of participants with a ≥ 75% reduction in EASI score from baseline at Week 24 (EASI-75)
Week 0 and Week 24
Number of participants with a ≥ 90% reduction in EASI score from baseline at Week 24 (EASI-90)
Week 0 and Week 24
Number of participants at week 6 achieving a 4-point or greater improvement in Itch numerical rating scale (NRS) in the subset of participants with a 4-point or greater Itch NRS at baseline
Week 0 and Week 6
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Blinded Induction Period: Rezpegaldesleukin every 2 weeksEXPERIMENTALRezpegaldesleukin every 2 weeks during the induction period
Blinded Induction Period: PlaceboPLACEBO_COMPARATORPlacebo every 2 weeks during the induction period
Blinded Maintenance Period: Rezpegaldesleukin every 4 weeksEXPERIMENTALRezpegaldesleukin every 4 weeks during the maintenance period
Blinded Maintenance Period: Rezpegaldesleukin every 12 weeksEXPERIMENTALRezpegaldesleukin every 12 weeks during the maintenance period
Blinded Maintenance Period: PlaceboPLACEBO_COMPARATORPlacebo every 4 weeks during the maintenance period
Open-Label EscapeEXPERIMENTALRezpegaldesleukin at a frequency determined by the investigator during the open-label escape
Low DoseEXPERIMENTALRezpegaldesleukin Low Dose Every 2 weeks
High DoseEXPERIMENTALRezpegaldesleukin High Dose Every 2 weeks
PlaceboPLACEBO_COMPARATORPlacebo Every 2 weeks
Arm AEXPERIMENTALRezpegaldesleukin Dose Regimen A every 2 weeks during the induction period
Arm A1EXPERIMENTALRezpegaldesleukin Dose Regimen A every 4 weeks during the maintenance period
Arm A2EXPERIMENTALRezpegaldesleukin Dose Regimen A every 12 weeks during the maintenance period
Arm BEXPERIMENTALRezpegaldesleukin Dose Regimen B every 4 weeks during the induction period
Arm B1EXPERIMENTALRezpegaldesleukin Dose Regimen B every 4 weeks during the maintenance period
Arm B2EXPERIMENTALRezpegaldesleukin Dose Regimen B every 12 weeks during the maintenance period
Arm CEXPERIMENTALRezpegaldesleukin Dose Regimen C every 2 weeks during the induction period
Arm C1EXPERIMENTALRezpegaldesleukin Dose Regimen C every 4 weeks during the maintenance period
Arm C2EXPERIMENTALRezpegaldesleukin Dose Regimen C every 12 weeks during the maintenance period
Arm DPLACEBO_COMPARATORPlacebo every 2 weeks during the induction period
Arm D1PLACEBO_COMPARATORPlacebo every 4 weeks during the maintenance period
Escape Therapy (open-label)EXPERIMENTALRezpegaldesleukin Dose Regimen A every 2 weeks during the maintenance period
Interventions
NameTypeDescription
RezpegaldesleukinDRUGPharmaceutical form: Injection solution Route of administration: subcutaneous
PlaceboDRUGPharmaceutical form: Injection solution Route of administration: subcutaneous
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Eligibility Criteria
Age Range12 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites1

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 ...

Countries:United StatesCanadaPolandAustraliaBulgariaCroatiaCzechiaGermanyHungarySpain
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Recent Changes (Last 90 Days)
LOWJul 17, 2026NCT07711418NEW_TRIAL: changed
LOWJul 17, 2026NCT07711418NEW_TRIAL: changed
LOWJul 10, 2026NCT06340360lastUpdatePostDate: changed
LOWJul 10, 2026NCT06340360lastUpdatePostDate: changed
LOWJul 8, 2026NCT07690371NEW_TRIAL: changed
LOWJul 8, 2026NCT07690371NEW_TRIAL: changed
LOWJun 4, 2026NCT06136741lastUpdatePostDate: changed
LOWJun 4, 2026NCT06136741lastUpdatePostDate: changed
LOWJun 4, 2026NCT06136741lastUpdatePostDate: changed
LOWJun 4, 2026NCT06136741lastUpdatePostDate: changed
LOWMay 26, 2026NCT06340360primaryCompletionDate: changed
LOWMay 26, 2026NCT06136741primaryCompletionDate: changed
LOWMay 24, 2026NCT06340360studyFirstPostDate: changed
LOWMay 24, 2026NCT06136741studyFirstPostDate: changed