Status:
RECRUITING
A Long-Term Study of Zasocitinib in Children and Teenagers With Plaque Psoriasis
Lead Sponsor:
Takeda
Conditions:
Plaque Psoriasis
Eligibility:
All Genders
4-17 years
Phase:
PHASE3
Brief Summary
The main aim of this study is to see how well the medicine zasocitinib works, how safe it is, and how children and teenagers aged 4 to under 18 with moderate-to-severe plaque psoriasis respond to it. ...
Eligibility Criteria
Inclusion
- Participant has a diagnosis of chronic plaque psoriasis for greater than or equal to (\>=) 6 months prior to the screening visit.
- Participant has stable plaque psoriasis defined as no significant flare or change in morphology (as assessed by the investigator) in psoriasis for \>=6 months before screening.
- Participant has moderate-to-severe plaque psoriasis as defined by a Psoriasis Area and Severity Index (PASI) score \>=12 and a Static Physician's Global Assessment (sPGA) score \>=3 at screening and Day 1.
- Participant has plaque psoriasis covering \>=10 percent (%) of total body surface area (BSA) at screening and Day 1.
- Participant must be a candidate for phototherapy or systemic therapy.
- Inclusion Criteria for Part A Cohort 1: The participant is male or female and aged 12 to less than (\<) 18 years, inclusive.
- Inclusion Criteria for Part A Cohort 2 and for Part B: The participant is male or female and aged 4 to \<12 years, inclusive.
- Inclusion Criteria for Part A Cohort 1: The participant must weigh \>=40 kilograms (kg) at the time of screening.
Exclusion
- Participant has evidence of nonplaque psoriasis (erythrodermic, pustular, predominantly guttate psoriasis, predominantly inverse, or drug-induced psoriasis). If a participant meets criteria for inclusion based on typical plaque psoriasis presentation, a limited amount of inverse psoriasis is not exclusionary.
- Participant requires systemic treatment, other than nonsteroidal anti-inflammatory drugs (NSAIDs), during the trial period for an immune-related disease.
- Participant has concomitant comorbid skin condition that, in the opinion of the investigator, would interfere with the trial assessments.
- Participant has history of active TB infection, regardless of treatment status and has signs or symptoms of active TB or evidence of latent tuberculosis infection (LTBI).
- Participant has active herpes virus infection, including herpes zoster or herpes simplex 1 and 2 or a history of serious herpetic infection.
- Participant has a history of chronic or recurrent bacterial disease.
- Participant has a history of opportunistic infections (for example, Pneumocystis jirovecii pneumonia, histoplasmosis, coccidiomycosis).
- Participant has any clinically significant medical condition, evidence of an unstable clinical condition or vital signs/physical examination/laboratory/ECG abnormality that would, in the opinion of the investigator, put the participant at undue risk or interfere with interpretation of trial results.
- Participant has any previous exposure to zasocitinib (also known as TAK-279 or NDI-034858) or other TYK2 inhibitors or participated in any trial that included a tyrosine kinase 2 (TYK2) inhibitor, unless participant has documentation of posttrial unblinding that confirms the participant did not receive a TYK2 inhibitor.
- Participant is not up to date on all required vaccinations according to current immunization guidelines as noted by country-specific pediatric authorities.
- Other protocol-defined inclusion/exclusion criteria apply.
Key Trial Info
Start Date :
December 4 2025
Trial Type :
INTERVENTIONAL
Allocation :
ESTIMATED
End Date :
January 24 2033
Estimated Enrollment :
110 Patients enrolled
Trial Details
Trial ID
NCT07250802
Start Date
December 4 2025
End Date
January 24 2033
Last Update
March 9 2026
Active Locations (40)
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1
Exalt Clinical Research
Chula Vista, California, United States, 91910
2
First OC Dermatology Research Inc.
Fountain Valley, California, United States, 92708
3
Direct Helpers Medical Center
Hialeah, Florida, United States, 33012
4
Arlington Dermatology
Rolling Meadows, Illinois, United States, 60008-3811