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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT06671496
Registration number
NCT06671496
Ethics application status
Date submitted
31/10/2024
Date registered
4/11/2024
Date last updated
9/07/2025
Titles & IDs
Public title
A Study of Zasocitinib in Adults With Psoriatic Arthritis Who Have or Have Not Been Treated With Biologic Medicines
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Scientific title
A Multi-Center, Randomized, Double-Blind, and Placebo-Controlled Phase 3 Study to Evaluate the Efficacy and Safety of Zasocitinib (TAK-279) in Subjects With Active Psoriatic Arthritis Stratified by Prior Biologic Use (LATITUDE-PsA-3002)
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Secondary ID [1]
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2024-513112-99-00
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Secondary ID [2]
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TAK-279-PsA-3002
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Psoriatic Arthritis
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Condition category
Condition code
Musculoskeletal
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Osteoarthritis
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Inflammatory and Immune System
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Rheumatoid arthritis
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Inflammatory and Immune System
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Other inflammatory or immune system disorders
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Musculoskeletal
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Other muscular and skeletal disorders
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Drugs - Zasocitinib
Treatment: Drugs - Placebo
Experimental: Zasocitinib Dose A - Participants will receive zasocitinib Dose A, tablets, orally, once daily (QD) for up to Week 52.
Experimental: Zasocitinib Dose B - Participants will receive zasocitinib Dose B, tablets, orally, QD for up to Week 52.
Experimental: Placebo + Zasoctinib - Participants will receive placebo, orally, QD for up to Week 16, followed by zasoctinib Dose A or Dose B, orally, QD, from Week 16 up to Week 52.
Treatment: Drugs: Zasocitinib
Zasocitinib tablets.
Treatment: Drugs: Placebo
Zasocitinib matching placebo.
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Intervention code [1]
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Treatment: Drugs
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Percentage of Participants Achieving American College of Rheumatology 20 (ACR20) Response at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [1]
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ACR responses are the numerical measurement of improvement in multiple disease assessment criteria. It is a composite clinical outcome assessment (COA) measure that includes both clinician-reported outcome assessments (ClinROs) and patient-reported outcomes (PROs). An ACR20 response is defined as: greater than or equal to (\>=) 20 percent (%) improvement from baseline in both swollen joint count 66 joints (SJC66) and tender joint count 68 joints (TJC68), and \>=20% improvement from baseline in 3 of the following 5 assessments: Patient's global assessment (PtGA) of psoriatic arthritis (PsA) pain; PtGA of PsA; physician's global assessment of disease activity (PGA) of PsA; participant's assessment of physical function as measured by health assessment questionnaire-disability index (HAQ-DI); high-sensitivity C-reactive protein (hsCRP). Percentage of participants achieving ACR20 response at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [1]
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At Week 16
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Secondary outcome [1]
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Percentage of Participants Achieving Minimal Disease Activity (MDA) at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [1]
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The MDA is defined as a composite outcome measure of 7 ClinROs and PROs used in PsA. Participants are classified as achieving MDA if they fulfil 5 of 7 outcome measures: TJC68 less than or equal to (\<=) 1, SJC66 \<=1, psoriasis area and severity index (PASI) score \<=1 or body surface area (BSA) affected by psoriasis \<=3%, PtGA of PsA Pain score \<=15, PtGA of PsA score \<=20, HAQ-DI \<=0.5, and Leeds Enthesitis Index (LEI) \<=1. Percentage of participants achieving MDA at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [1]
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At Week 16
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Secondary outcome [2]
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Percentage of Participants Achieving PASI-75 Response (in Participants With a Baseline >=3% BSA) at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [2]
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A PASI-75 response is defined as \>=75% improvement in the PASI score from baseline. It is a ClinRO used to measure psoriasis severity, combining the percent of affected skin surface area with the severity of erythema, induration, and desquamation across four body regions: head, upper extremities, trunk, and lower extremities. Severity is scored on a 0-4 scale, with 0 indicating no involvement and 4 indicating very marked involvement. PASI scores range from 0 to 72, with \<=3 representing mild disease, \>=3 to 15 representing moderate disease, and \>=15 indicating severe disease. Percentage of participants achieving PASI-75 response (in participants with a baseline \>=3% body surface area \[BSA\]) for zasocitinib Dose A and B compared to placebo at Week 16 will be reported.
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Timepoint [2]
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Baseline, at Week 16
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Secondary outcome [3]
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Percentage of Participants Achieving ACR50 Response at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [3]
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ACR responses are the numerical measurement of improvement in multiple disease assessment criteria. It is a composite COA measure that includes both ClinROs and PROs. An ACR50 response is defined as: \>= 50% improvement from baseline in both SJC66 and TJC68, and \>=50% improvement from baseline in 3 of the following 5 assessments: PtGA of PsA pain; PtGA of PsA; PGA of PsA; participant's assessment of physical function as measured by HAQ-DI; hsCRP. Percentage of participants achieving ACR50 response at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [3]
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At Week 16
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Secondary outcome [4]
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Change From Baseline in the HAQ-DI Score at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [4]
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The HAQ-DI is defined as a 20-item PRO measure used to assess functional ability over the past week across 8 categories: dressing and grooming, arising, eating, walking, hygiene, reach, grip, and common daily activities. For each of these categories, participant reports the amount of difficulty they have in performing 2 or 3 specific activities on a 4-point scale (0 = without any difficulty, 1 = with some difficulty, 2 = with much difficulty, 3 = unable to do) The use of assistive devices and personal assistance are also noted. The HAQ-DI score is calculated as the mean of the category scores (0 = no disability, 3 = completely disabled), with 0 being the most desirable outcome and 3 as the least desirable. Participants must have scores for at least 6 categories for the HAQ-DI to be computed. Change from baseline in the HAQ-DI score at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [4]
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Baseline, at Week 16
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Secondary outcome [5]
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Percentage of Participants Achieving ACR70 Response at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [5]
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ACR responses are the numerical measurement of improvement in multiple disease assessment criteria. It is a composite COA measure that includes both ClinROs and PROs. An ACR70 response is defined as: \>=70% improvement from baseline in both SJC66 and TJC68, and \>=70% improvement from baseline in 3 of the following 5 assessments: PtGA of PsA pain; PtGA of PsA; PGA of PsA; participant's assessment of physical function as measured by HAQ-DI; hsCRP. Percentage of participants achieving ACR70 response at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [5]
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At Week 16
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Secondary outcome [6]
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Change From Baseline in the Short Form-36 Health Survey Version 2.0 (SF-36 v2.0) Physical Component Summary (PCS) Score at Week 16 for Zasocitinib Dose A Compared to Placebo
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Assessment method [6]
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The SF-36 v2.0 is defined as a self-administered, validated questionnaire designed to measure general health-related quality of life (QoL). This 36-item questionnaire measures 8 domains over the past 4 weeks, including physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health, physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. Summary score PCS, will be calculated ranging from 0 (worst) to 100 (best). Higher scores indicate better QoL. Change from baseline in the SF-36 v2.0 PCS score at Week 16 for zasocitinib Dose A compared to placebo will be reported.
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Timepoint [6]
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Baseline, at Week 16
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Secondary outcome [7]
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Change From Baseline in the Functional Assessment of Chronic Illness Therapy (FACIT)- Fatigue Score at Week 16 for Zasocitinib Dose A Compared to Placebo
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Assessment method [7]
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The FACIT-fatigue score is defined as a 13-item PRO measure that assesses the severity of self-reported fatigue and its impact on daily functioning over the past 7 days. It includes items measuring tiredness, weakness, listlessness, lack of energy, and the effects on activities such as sleep and social interactions. Each item is rated on a 5-point scale (0 = not at all; 1 = a little bit; 2 = somewhat; 3 = quite a bit; 4 = very much). The total score ranges from 0 to 52, with higher scores indicating less fatigue. Change from baseline in the FACIT- fatigue score at Week 16 for zasocitinib Dose A compared to placebo will be reported.
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Timepoint [7]
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Baseline, at Week 16
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Secondary outcome [8]
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Percentage of Participants Achieving LEI =0 (in Participants With a Baseline LEI >=1) at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [8]
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The LEI is defined as a 6-item ClinRO measure specifically developed for PsA. It assesses the presence or absence of pain/tenderness when 4 kilograms per centimeter square (kg/cm\^2) of pressure is applied to 6 enthesial sites: the lateral epicondyles, medial femoral condyles, and Achilles tendon insertions on both sides of the body. Tenderness at each site is recorded on a dichotomous scale (0 = non-tender, 1 = tender). The total score is the sum of tender sites, ranging from 0 to 6, with a higher score indicating a greater enthesitis burden. Percentage of participants achieving LEI =0 (in participants with a baseline LEI \>=1) at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [8]
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Baseline, at Week 16
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Secondary outcome [9]
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Change From Baseline in Individual Components of ACR Response at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [9]
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ACR responses are the numerical measurement of improvement in multiple disease assessment criteria. It is a composite COA measure that includes both ClinROs and PROs. An ACR response is defined as: improvement from baseline in both SJC66 and TJC68, and improvement from baseline in 3 of the following 5 assessments: PtGA of PsA pain (0-100 visual analogue scale \[VAS\]); PtGA of PsA (0-100 VAS); PGA of PsA (0-100 VAS); participant's assessment of physical function as measured by HAQ-DI (0-3 scale); hsCRP. Change from baseline in individual components of ACR response at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [9]
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Baseline, at Week 16
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Secondary outcome [10]
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Percentage of Participants Achieving Leeds Dactylitis Index (LDI) =0 (in Participants With a Baseline LDI >=1) at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [10]
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The LDI is defined as a ClinRO measure use to assess the presence of dactylitis. It involves measuring the circumference of all 20 digits using a dactylometer, with measurements taken around the proximal phalanx as close to the web space as possible. Moderate pressure is applied to assess tenderness or pain in the affected digits. Tenderness is scored on a binary scale (0 = non-tender, 1 = tender). Only digits with a circumference ratio exceeding 10% are considered to have dactylitis. A higher score indicates worse dactylitis. Percentage of participants achieving LDI =0 (in participants with a baseline LDI \>=1) at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [10]
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Baseline, at Week 16
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Secondary outcome [11]
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Percentage of Participants Achieving PASI-75 Response (in Participants With a Baseline >=3% BSA) at Week 8 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [11]
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A PASI-75 response is defined as \>=75% improvement in the PASI score from baseline. It is a ClinRO used to measure psoriasis severity, combining the percent of affected skin surface area with the severity of erythema, induration, and desquamation across four body regions: head, upper extremities, trunk, and lower extremities. Severity is scored on a 0-4 scale, with 0 indicating no involvement and 4 indicating very marked involvement. PASI scores range from 0 to 72, with \<=3 representing mild disease, \>=3 to 15 representing moderate disease, and \>=15 indicating severe disease. Percentage of participants achieving PASI-75 response (in participants with a baseline \>=3% BSA) at Week 8 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [11]
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Baseline, at Week 8
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Secondary outcome [12]
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Percentage of Participants Achieving PASI-90 Response (in Participants With a Baseline >=3% BSA) at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [12]
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A PASI-90 response is defined as \>=90% improvement in the PASI score from baseline. It is a ClinRO used to measure psoriasis severity, combining the percent of affected skin surface area with the severity of erythema, induration, and desquamation across four body regions: head, upper extremities, trunk, and lower extremities. Severity is scored on a 0-4 scale, with 0 indicating no involvement and 4 indicating very marked involvement. PASI scores range from 0 to 72, with \<=3 representing mild disease, \>=3 to 15 representing moderate disease, and \>=15 indicating severe disease. Percentage of participants achieving PASI-90 response (in participants with a baseline \>=3% BSA) at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [12]
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Baseline, at Week 16
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Secondary outcome [13]
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Percentage of Participants Achieving PASI-100 Response (in Participants With a Baseline >=3% BSA) at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [13]
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A PASI-100 response is defined as \>=100% improvement in the PASI score from baseline. It is a ClinRO used to measure psoriasis severity, combining the percent of affected skin surface area with the severity of erythema, induration, and desquamation across four body regions: head, upper extremities, trunk, and lower extremities. Severity is scored on a 0-4 scale, with 0 indicating no involvement and 4 indicating very marked involvement. PASI scores range from 0 to 72, with \<=3 representing mild disease, \>=3 to 15 representing moderate disease, and \>=15 indicating severe disease. Percentage of participants achieving PASI-100 response (in participants with a baseline \>=3% BSA) at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [13]
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Baseline, at Week 16
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Secondary outcome [14]
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Percentage of Participants Achieving ACR50 and PASI-100 Response (in Participants With a Baseline >=3% BSA) Simultaneously at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [14]
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ACR responses measure improvement in multiple criteria, a composite COA with ClinROs and PROs. An ACR50 response is \>=50% improvement in SJC66 and TJC68, and 3 of 5 assessments: PtGA of PsA pain; PtGA of PsA; PGA of PsA, HAQ-DI, hsCRP. A PASI-100 response is \>=100% improvement in the PASI score from baseline. It's a ClinRO measuring psoriasis severity, combining the percent of affected skin surface area with the severity of erythema, induration, and desquamation across four body regions: head, upper extremities, trunk, and lower extremities. Severity is scored from 0 (no involvement) to 4 (very marked involvement). PASI scores range from 0 to 72, with \<=3 as mild, \>=3 to 15 as moderate, and \>=15 as severe disease. Percentage of participants achieving ACR50 and PASI-100 response (in participants with a baseline \>=3% BSA) simultaneously at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [14]
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Baseline, at Week 16
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Secondary outcome [15]
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Percentage of Participants Achieving sPGA Response of Clear (0) or Almost Clear (1) With >=2-Point Decrease From Baseline (in Participants With a Baseline sPGA >=2) at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [15]
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Static physician's global assessment (sPGA) is defined as a 5-point ClinRO measure used to assess the current state of psoriasis based on severity of erythema, induration, and scaling. The total sPGA score ranges from 0 to 4, where 0 = clear, 1 = almost clear, 2 = mild, 3 = moderate, and 4 = severe, with higher scores indicating greater disease severity. Each lesion characteristic (erythema, induration, and scaling) is graded separately on a 5-point scale: erythema (0 = no evidence to 4 = bright red coloration), induration (0 = no evidence to 4 = severe plaque elevation), and scaling (0 = no evidence to 4 = thick scaling). Lesion scores for erythema, induration, and scaling are averaged and rounded to nearest whole number to compute total score. Percentage of participants achieving sPGA response of clear (0) or almost clear (1) with \>=2-point decrease from baseline (in participants with a baseline sPGA \>=2) at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [15]
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Baseline, at Week 16
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Secondary outcome [16]
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Percentage of Responders Achieving Minimal Clinically Important Differences (Reduction of >=0.35 From Baseline) in HAQ-DI Score From Baseline at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [16]
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The HAQ-DI is defined as a 20-item PRO measure used to assess functional ability over the past week across 8 categories: dressing and grooming, arising, eating, walking, hygiene, reach, grip, and common daily activities. Each category includes 2-3 activities rated on a 4-point scale (0 = without any difficulty, 1 = with some difficulty, 2 = with much difficulty, 3 = unable to do). Assistive devices and personal assistance are also noted. The HAQ-DI score is calculated as the mean of the category scores (0 = no disability, 3 = completely disabled), with scores of 0-1 indicating mild-to-moderate disability, 1-2 moderate-to-severe, and 2-3 severe-to-very severe disability. Participants must have scores for at least 6 categories for the HAQ-DI to be computed. Percentage of responders achieving minimal clinically important differences (reduction of \>=0.35 from baseline) in HAQ-DI score from baseline at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [16]
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Baseline, at Week 16
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Secondary outcome [17]
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Change From Baseline in the SF-36 v2.0 Mental Component Summary (MCS) Score at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [17]
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The SF-36 v2.0 is defined as a self-administered, validated questionnaire designed to measure general health-related quality of life (QoL). This 36-item questionnaire measures 8 domains over the past 4 weeks, including physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health, physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. Summary score MCS, will be calculated ranging from 0 (worst) to 100 (best). Higher scores indicate better QoL. Change from baseline in the SF-36 v2.0 MCS score at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [17]
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Baseline, at Week 16
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Secondary outcome [18]
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Change From Baseline in Psoriatic Arthritis Impact of Disease-12 Items (PsAID-12) Total Score at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [18]
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The PsAID-12 is defined as a 12-item PRO measure that assesses symptoms such as pain, fatigue, and skin problems and the impact of PsA on the participant's life over the past week. It covers areas including work and/or leisure activities, physical activities, sleep, anxiety, embarrassment or shame, social participation, and depression. The response options are rated on a numerical rating scale (NRS) from 0 (none/no difficulty) to 10 (extreme difficulty), with higher scores indicating a greater impact of the disease. Change from baseline in PsAID-12 total score at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [18]
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Baseline, at Week 16
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Secondary outcome [19]
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Change From Baseline in Disease Activity Index for Psoriatic Arthritis (DAPSA) Score at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [19]
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The DAPSA is defined as a composite measure of peripheral joint disease activity that includes ClinROs, PROs, and a laboratory test. DAPSA is calculated as the sum of the following components: tender joint count (0-68), swollen joint count (0-66), hsCRP level (milligrams per deciliter \[mg/dL\]), PtGA of PsA pain (0-100 VAS), and PtGA of PsA (0-100 VAS). DAPSA cutoffs for disease activity are: remission (\<=4), low disease activity (\>4 to \<=14), moderate disease activity (\>14 to \<=28), and high disease activity (\>28). Change from baseline in DAPSA score at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [19]
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Baseline, at Week 16
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Secondary outcome [20]
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Change From Baseline in Disease Activity Score-28 (DAS28) (C-Reactive Protein) Score at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [20]
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The DAS28 with high-sensitivity C-reactive protein is defined as a derived index combining the tender joint count (28 joints), swollen joint count (28 joints), hsCRP, and PtGA of PsA. The 28-joint count includes the shoulder, elbow, wrist, metacarpophalangeal (MCP) 1-5, proximal interphalangeal (PIP) 1-5 of both upper extremities, and the knee joints of both lower extremities. The DAS28 score ranges from 0 to 10, with higher scores indicating greater disease activity. Change from baseline in DAS28 C-reactive protein score at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [20]
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Baseline, at Week 16
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Secondary outcome [21]
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Change From Baseline in Physician's Global Assessment of Fingernail Psoriasis (PGA-F) Score in Participants With Psoriatic Nail Involvement (PGA-F Greater than [>] 0) From Baseline at Week 16 for Zasocitinib Dose A and B Compared to Placebo
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Assessment method [21]
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The PGA-F is defined as a ClinRO measure assessing the severity of fingernail PsO. It evaluates nail bed signs (onycholysis, hyperkeratosis, erythema, splinter hemorrhages) and nail matrix signs (pitting, ridging, discoloration). Clinicians rate the severity using categories: clear (0), minimal (1), mild (2), moderate (3), and severe (4). The total score is based on the area with the most involvement (nail bed or matrix), ranging from 0 (clear) to 4 (very severe), with higher scores indicating more severe fingernail PsO. Change from baseline in PGA-F score in participants with PGA-F \>0 from baseline at Week 16 for zasocitinib Dose A and B compared to placebo will be reported.
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Timepoint [21]
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Baseline, at Week 16
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Secondary outcome [22]
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Change From Baseline in the SF-36 v2.0 PCS Score at Week 16 for Zasocitinib Dose B Compared to Placebo
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Assessment method [22]
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The SF-36 v2.0 is defined as a self-administered, validated questionnaire designed to measure general health-related quality of life (QoL). This 36-item questionnaire measures 8 domains over the past 4 weeks, including physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health, physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. Summary score PCS, will be calculated ranging from 0 (worst) to 100 (best). Higher scores indicate better QoL. Change from baseline in the SF-36 v2.0 PCS score at Week 16 for zasocitinib Dose B compared to placebo will be reported.
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Timepoint [22]
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Baseline, at Week 16
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Secondary outcome [23]
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Change From Baseline in the FACIT- Fatigue Score at Week 16 for Zasocitinib Dose B Compared to Placebo
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Assessment method [23]
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The FACIT-fatigue score is defined as a 13-item PRO measure that assesses the severity of self-reported fatigue and its impact on daily functioning over the past 7 days. It includes items measuring tiredness, weakness, listlessness, lack of energy, and the effects on activities such as sleep and social interactions. Each item is rated on a 5-point scale (0 = not at all; 1 = a little bit; 2 = somewhat; 3 = quite a bit; 4 = very much). The total score ranges from 0 to 52, with higher scores indicating less fatigue. Change from baseline in the FACIT- fatigue score at Week 16 for zasocitinib Dose B compared to placebo will be reported.
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Timepoint [23]
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Baseline, at Week 16
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Eligibility
Key inclusion criteria
Age:
1. The participant is aged 18 years or older at the time of signing the informed consent form (ICF).
Disease Characteristics:
2. The participant has had signs and symptoms consistent with PsA for at least 3 months.
3. The participant meets the Classification Criteria for Psoriatic Arthritis (CASPAR criteria).
4. The participant has active arthritis as shown by a minimum of >=3 tender joints in TJC68 and >=3 swollen joints in SJC66 at the screening and baseline (Day 1) visits.
5. The participant has at least 1 active lesion of plaque PsO >=2 cm in diameter, or any nail or nail bed changes characteristic of PsO.
Medications for PsA:
6. The participant has had at least one of the following:
1. Inadequate response to a nonsteroidal anti-inflammatory drug (NSAID), OR
2. Inadequate response to a conventional synthetic disease-modifying antirheumatic drug (csDMARD), OR
3. Biological disease-modifying antirheumatic drug (DMARD)-inadequate response (Bio-IR): Inadequate response to up to 2 biologic DMARDs.
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
PsA and PsO:
1. The participant has other disease(s) that might confound the evaluations of benefit of zasocitinib therapy, including but not limited to rheumatoid arthritis, axial spondyloarthritis, systemic lupus erythematosus, Lyme disease, gout, or fibromyalgia.
2. The participant has a concomitant comorbid skin condition that, in the opinion of the investigator, would interfere with the study assessments, such as evidence of non-plaque PsO (erythrodermic, pustular, predominately guttate PsO, inverse, or drug-induced PsO).
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 3
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Recruiting
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
10/03/2025
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
26/01/2028
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Actual
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Sample size
Target
600
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
NSW,QLD,SA,WA
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Recruitment hospital [1]
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Royal Prince Alfred Hospital - Camperdown
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Recruitment hospital [2]
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Westmead Hospital - Westmead
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Recruitment hospital [3]
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Sunshine Coast University Private Hospital | Clinical Trials - Sippy Downs
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Recruitment hospital [4]
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The Queen Elizabeth Hospital | Rheumatology Department - Woodville South
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Recruitment hospital [5]
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Fiona Stanley Hospital - Palmyra Dc
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Recruitment hospital [6]
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Colin Bayliss Research and Teaching Unit - Victoria Park
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Recruitment postcode(s) [1]
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NSW 2050 - Camperdown
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Recruitment postcode(s) [2]
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2145 - Westmead
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Recruitment postcode(s) [3]
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QLD 4575 - Sippy Downs
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Recruitment postcode(s) [4]
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SA 5011 - Woodville South
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Recruitment postcode(s) [5]
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6961 - Palmyra Dc
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Recruitment postcode(s) [6]
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WA 6100 - Victoria Park
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Recruitment outside Australia
Country [1]
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United States of America
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Arizona
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California
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Florida
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Georgia
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Illinois
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Kentucky
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Maryland
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Michigan
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Missouri
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North Carolina
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Ohio
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Texas
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Washington
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Argentina
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Buenos Aires
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Argentina
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Cordoba
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Argentina
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Tucuman
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Argentina
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San Juan
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Brazil
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Minas Gerais
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Brazil
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PR
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Brazil
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RS
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Brazil
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Sao Paulo
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Ontario
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Anhui
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China
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Beijing
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China
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Fujian
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China
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Guandong
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China
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Guangdong
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China
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Henan
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China
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Hubei
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China
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Hunan Sheng
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China
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Inner Mongolia Autonomous Region
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China
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Jiangsu
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China
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Jiangxi Sheng
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China
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Jiangxi
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China
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Pingxiang
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China
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China
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Shanxi
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China
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China
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Chengdu
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China
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Guangzhou
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China
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Wenzhou Shi
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France
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Auvergne-Rhône-Alpes
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France
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Marne
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France
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St Etienne
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Germany
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Sachsen
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Germany
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Berlin
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Germany
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Hamburg
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Herne
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Aichi
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Japan
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Hokkaido
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Japan
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Hukuoka
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Japan
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Hyogo
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Japan
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Mie-Ken
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Japan
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Japan
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Miyagi
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Japan
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Nagasaki
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Japan
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Osaka
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Japan
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Tokyo-To
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Japan
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Tokyo
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Poland
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Dolnoslaskie
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Malopolskie
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Pomorskie
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Slaskie
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Wybierz Województwo
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Lublin
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Spain
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Cantabria
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Spain
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Madrid
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Spain
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Pais Vasco
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Spain
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Santa Cruz de Tenerife
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Spain
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Sevilla
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United Kingdom
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Greater London
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United Kingdom
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West Midlands
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United Kingdom
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West Yorkshire
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United Kingdom
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Harlow
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United Kingdom
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Oxford
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United Kingdom
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Stoke-on-Trent
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United Kingdom
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Wolverhampton
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Funding & Sponsors
Primary sponsor type
Commercial sector/industry
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Name
Takeda
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
Psoriatic arthritis (PsA) is a chronic inflammatory disease that affects the joints and skin in people who have psoriasis (PsO). The main aim of the study is to know how well zasocitinib (TAK-279) works in participants with active PsA based on their previous experience with specific treatments. The participants will be treated with either zasocitinib, or placebo. Participants will be in the study for up to 60 weeks.
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Trial website
https://clinicaltrials.gov/study/NCT06671496
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Study Director
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Address
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Takeda
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
0
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Takeda Contact
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Address
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Country
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Phone
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+1-877-825-3327
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
Yes
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What data in particular will be shared?
Takeda provides access to the de-identified individual participant data (IPD) for eligible studies to aid qualified researchers in addressing legitimate scientific objectives (Takeda's data sharing commitment is available on https://clinicaltrials.takeda.com/takedas-commitment?commitment=5). These IPDs will be provided in a secure research environment following approval of a data sharing request, and under the terms of a data sharing agreement.
Supporting document/s available: Study protocol, Statistical analysis plan (SAP), Informed consent form (ICF), Clinical study report (CSR)
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When will data be available (start and end dates)?
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Available to whom?
IPD from eligible studies will be shared with qualified researchers according to the criteria and process described on https://vivli.org/ourmember/takeda/. For approved requests, the researchers will be provided access to anonymized data (to respect patient privacy in line with applicable laws and regulations) and with information necessary to address the research objectives under the terms of a data sharing agreement.
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Available for what types of analyses?
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How or where can data be obtained?
IPD available at link: https://vivli.org/ourmember/takeda/
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT06671496
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