Psoriasis Clinical Trial
Official title:
A Phase 3b, Randomized, Double-blind, Active-controlled, Multicenter Study to Evaluate a "Subject-tailored" Maintenance Dosing Approach in Subjects With Moderate-to-Severe Plaque Psoriasis
The purpose of the study is to assess the effect of extending maintenance dosing intervals beyond 12 weeks on the clinical efficacy and safety of ustekinumab in subjects with moderate-to-severe plaque psoriasis.
In this study, a proportion of subjects will receive study agent at its recommended dose and interval (45mg for subjects less than or equal to 100kg, or 90mg for subjects greater than 100kg; every 12 weeks after 2 starter doses at Weeks 0 and 4). The majority of subjects will have the opportunity to receive study agent less frequently during the randomization period depending on the subject's response. The study consists of a 4-week screening period; a 28-week open-label run-in period; a double-blind treatment period from Week 28 to Week 104; a 12 week post-treatment period; and a 20-week safety follow-up. Participants will be randomized for the double blind period into one of two study groups. Group 1 participants will receive an injection of the study medication at a 12 week dosing interval. Group 2 participants will undergo a placebo withdrawal and may receive study agents at an extended interval greater than 12 weeks. During the double-blind treatment period, subjects in Groups 1 and 2 will receive placebo as necessary to maintain the blind. ;
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
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