Overall trial status: Ongoing, recruiting
Trial title: A Phase 3, Randomized, Multicenter, Double-Blind, Placebo-Controlled Trial to Evaluate the Efficacy, Safety, Tolerability, and Pharmacokinetics of Zasocitinib in Pediatric Participants Aged 4 to Less Than 18 Years With Moderate-to-Severe Plaque Psoriasis
Medical conditions: Plaque Psoriasis
Status in each country: Spain:Authorised, recruiting, Poland:Ongoing, recruiting, Germany:Ongoing, recruiting, Italy:Authorised, recruitment pending
Trial phase: Therapeutic confirmatory (Phase III)
Therapeutic Areas: Diseases [C] - Skin and Connective Tissue Diseases [C17]
Primary end point: Part A: Coprimary Endpoints (vs Placebo) at Week 16 • sPGA 0/1 response: Proportion of participants achieving an sPGA of clear (0) or almost clear (1) with a ≥2-point decrease from baseline. • PASI-75 response: Proportion of participants achieving ≥75% improvement from baseline in PASI score. Part A Cohort 1: Includes adolescent participants aged 12 to <18 years. Part A Cohort 2: Includes children participants aged 4 to <12 years., Part B: PK Primary Endpoints • PK parameters (that is Cmax, Tmax, AUC0-Last) of zasocitinib on Day 7. Part B: Includes only children participants aged 4 to <12 years. Part B participants will be separate from Part A Cohort 2 participants.
Secondary end point: Part A: Key Secondary Efficacy Endpoints (vs Placebo) at Week 16 • PASI-90 response: Proportion of participants achieving PASI-90. • Enhanced sPGA response: Proportion of participants achieving an sPGA of clear (0). • PASI-100 response: Proportion of participants achieving PASI-100., Part A: Additional Secondary Efficacy Endpoints (vs Placebo) at Week 16 • ssPGA response: Proportion of participants achieving an ssPGA of clear (0) or almost clear (1) with a ≥2-point decrease from baseline for participants with a baseline ssPGA ≥3. • Change and percent change from baseline in BSA affected by psoriasis., • DLQI response: Proportion of participants with a DLQI score of 0/1 (for participants with a baseline DLQI score ≥2). • CDLQI response: Proportion of participants with a CDLQI score of 0/1 (for participants with a baseline CDLQI score ≥2). • Change from baseline in DLQI. • Change from baseline in CDLQI., Part A (Cohort 1 only): Additional Secondary Efficacy Endpoints (vs Placebo) at Week 16 • Itch NRS response: Proportions of participants achieving a ≥4-point improvement in Itch NRS for participants in Cohort 1 who had an itch NRS ≥4 at baseline. • Change and percent change from baseline in Itch NRS for participants in Cohort 1., Parts A and B: Additional Secondary Efficacy Endpoints at Each Scheduled Visit Over the Duration of the Open-Label Period • PASI-75 response: Proportion of participants achieving PASI-75. • PASI-90 response: Proportion of participants achieving PASI-90. • PASI-100 response: Proportion of participants achieving PASI-100., • sPGA 0/1 response: Proportion of participants achieving an sPGA of clear (0) or almost clear (1) with a ≥2-point decrease from baseline. • Enhanced sPGA response: Proportion of participants achieving an sPGA of clear (0)., • ssPGA response: Proportion of participants achieving an ssPGA of clear (0) or almost clear (1) with a ≥2-point decrease from baseline for participants with a baseline ssPGA ≥3. • Change and percent change from baseline in BSA affected by psoriasis., • DLQI response: Proportion of participants with a DLQI score of 0/1 (for participants with a baseline DLQI score ≥2). • CDLQI response: Proportion of participants with a CDLQI score of 0/1 (for participants with a baseline CDLQI score ≥2)., • Change from baseline in DLQI. • Change from baseline in CDLQI., Part A (Cohort 1 only): Additional Secondary Efficacy Endpoints at Each Scheduled Visit Over the Duration of the Open- Label Period • Itch NRS responses: Proportions of participants achieving a ≥4-point improvement in Itch NRS for participants in Cohort 1 who had an itch NRS ≥4 at baseline. • Change and percent change from baseline in Itch NRS for participants in Cohort 1., Part A: Additional Secondary PK Endpoint • Plasma concentrations of zasocitinib in participants receiving active treatment., Part B: Additional Secondary Endpoint • Acceptability/palatability assessment scores.
Age of participants: 0-17 years
Gender of participants: Female, Male
Trial region: In both EEA and non-EEA
Planned number of participants: 54
Sponsor: Takeda Development Center Americas Inc.
Sponsor type: Pharmaceutical company
Trial product: ZASOCITINIB, Matching Placebo for TAK-279
Results posted: No
Overall decision date: 01/04/2026
Countries decision date: DE: 07/04/2026, IT: 01/04/2026, ES: 06/04/2026, PL: 03/04/2026
Last updated date: 22/06/2026
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