The purpose of this study is to evaluate the efficacy (good or bad effects) and safety of ustekinumab in the treatment of patients with moderate to severe psoriasis in China.
In this study, 220 patients will be divided into two groups randomly (by chance), like flipping a coin. Each group will receive a different treatment. The results for each group are compared to each other. There are 2 treatment groups in this study, Group 1 and Group 2. Group 1 will receive placebo at Weeks 0 and 4, ustekinumab 45 mg at Weeks 12 and 16. Group 2 will receive ustekinumab 45 mg at Weeks 0, 4, and 16 and placebo at Week 12. All patients in the study will eventually receive ustekinumab after Week 12. The patients will be in the study for about 36 weeks, with study visit approximately 10 times. Effectiveness evaluations will be conducted throughout the study and include the Psoriasis Area and Severity Index (PASI), Physician's Global Assessment (PGA) and Dermatology Life Quality Index (DLQI). Safety assessments will also be performed throughout the study and include obtaining and evaluating laboratory tests, vital signs (e.g., blood pressure) and the occurrence and severity of adverse events. GROUP 1: Placebo at Weeks 0 and 4, ustekinumab 45 mg at Weeks 12 and 16. GROUP 2: Ustekinumab 45 mg at Weeks 0, 4, and 16. Placebo at Week 12
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
322
Subcutaneous injection at Week 0 and 4
45 mg subcutaneous injection at Week 12 and 16
Subcutaneous injection at Week 12
Unnamed facility
Beijing, China
Unnamed facility
Chongqing, China
Unnamed facility
Dalian, China
Unnamed facility
Guangzhou, China
The Number of Patients Who Achieved at Least a 75% Improvement in PASI (Psoriasis Area and Severity Index) From Baseline at Week 12.
Scores could range from 0 (mild) to 72 (severe).
Time frame: Baseline (Week 0) to Week 12
The Number of Patients With a Physician's Global Assessment (PGA) Score of Cleared (0) or Minimal (1) at Week 12
Time frame: Week 12
The Change in Dermatology Life Quality Index (DLQI) From Baseline at Week 12.
Scores could range from 0 to 30. A lower DLQI score represents better quality of life.
Time frame: Baseline (Week 0) to Week 12
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45 mg subcutaneous injection at Week 0, 4 and 16
Unnamed facility
Hangzhou, China
Unnamed facility
Nanjing, China
Unnamed facility
Shanghai, China
Unnamed facility
Shenyang, China
Unnamed facility
Xi'an, China