NCT00723528

An Efficacy and Safety Study of Ustekinumab (CNTO 1275) in Participants With Plaque Psoriasis

A Placebo-Controlled Double-Blind Comparative Study of CNTO1275 in Patients With Plaque Type Psoriasis

• Status: Completed
• Phase: Phase 3
• Study type: Interventional
• Enrollment: 158 (actual)
• Sponsor: Janssen Pharmaceutical K.K. · Industry
• Sex: All
• Age: 20 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study is to evaluate the safety and efficacy of ustekinumab (CNTO 1275) compared with placebo in participants with moderate to severe plaque type psoriasis.

Detailed description

This is a multicenter (involving more than 1 study center), randomized (study medication assigned by chance), double-blind (neither the invesitigator nor the participant knows the identity of the study medication), placebo- controlled (1 of the study medications is inactive), parallel-group comparative study (different groups of participants will receive different treatments at the same time). The total duration of the study will be 78 weeks which will be comprised of: a screening period (6 weeks); an efficacy assessment period (64 weeks \[with a total of 7 treatments at Weeks 0, 4, 12, 16, 28, 40, and 52\]) and a follow-up assessment period (8 weeks). The efficacy assessment period will further include: a placebo-controlled treatment period (Weeks 0-12) and an active drug treatment period (Weeks 12-64). During the placebo-controlled treatment period, participants will receive ustekinumab (45 mg or 90 mg) subcutaneously (SC-into the muscles) or placebo SC. During the active drug treatment period, participants will continue treatment with 45 mg or 90 mg SC as assigned during the placebo-controlled treatment period; however, participants in the placebo group will be divided into 2 groups and will receive ustekinumab 45 mg (Placebo A) or 90 mg (Placebo B) SC. Efficacy will be evaluated primarily by analysis of psoriasis area and severity index (PASI) score. Participant safety will also be monitored.

Conditions

• Psoriasis

Interventions

Type	Name	Description
DRUG	Placebo (CP)	Placebo 0.5 ml and 1.0 ml will be administered subcutaneously (SC) on Weeks 0 and 4 respectively during the controlled period (Weeks 0-12).
DRUG	Ustekinumab 45 mg (CP)	Ustekinumab 45 mg (0.5 ml) and placebo (1.0 ml) will be administered SC on Weeks 0 and 4 during controlled period (Weeks 0-12).
DRUG	Ustekinumab 90 mg (CP)	Ustekinumab 90 mg (1.0 ml) and placebo (0.5 ml) will be administered SC on Weeks 0 and 4 during controlled period (Weeks 0-12).
DRUG	Placebo A (After CP)	After the controlled period (i.e., during the active drug treatment period \[Weeks 12-64\]), the placebo group will be randomized into 2 groups, including Placebo A, in which ustekinumab 45 mg (0.5 ml) and placebo (1.0 ml) will be administered SC at Weeks 12, 16, 28, 40, and 52.
DRUG	Placebo B (After CP)	After the controlled period (i.e., during the active drug treatment period \[Weeks 12-64\]), the placebo group will be randomized into 2 groups, including Placebo B, in which ustekinumab 90 mg (1.0 ml) and placebo (0.5 ml) will be administered SC at Weeks 12, 16, 28, 40, and 52.
DRUG	Ustekinumab 45 mg (After CP)	After the controlled period (i.e., during the active drug treatment period \[Weeks 12-64\]), participants in the ustekinumab 45 mg group will receive placebo (0.5 ml and 1.0 ml) SC at Week 12 followed by ustekinumab 45 mg (0.5 ml) and placebo (1.0 ml) SC at Weeks 16, 28, 40 and 52.
DRUG	Ustekinumab 90 mg (After CP)	After the controlled period (i.e., during the active drug treatment period \[Weeks 12-64\]), participants in the ustekinumab 90 mg group will receive placebo (0.5 ml and 1.0 ml) SC at Week 12 followed by ustekinumab 90 mg (1.0 ml) and placebo (0.5 ml) SC at Weeks 16, 28, 40 and 52.

Timeline

• Start date: 2008-03-01
• Primary completion: 2009-01-01
• Completion: 2010-03-01
• First posted: 2008-07-28
• Last updated: 2014-05-20
• Results posted: 2014-05-20

Locations

27 sites across 1 country: Japan