The purpose of this study is to investigate the efficacy and safety of two dose levels of certolizumab pegol in adults with moderate to severe chronic plaque psoriasis when administered every 2 weeks.
This study consists of the following Periods: * Initial Treatment Period from Week 0 to Week 16 * Maintenance Treatment Period from Week 16 to Week 48 * Open-label Treatment Period from Week 48 to Week 144 * Safety Follow-Up Period from Week 144 to Week 152
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
234
* Active Substance: Certolizumab Pegol * Pharmaceutical Form: Solution for injection in pre-filled syringe * Concentration: 200 mg/mL * Route of Administration: Subcutaneous use
* Active Substance: Placebo * Pharmaceutical Form: Solution for injection in pre-filled syringe * Concentration: 0.9 % saline * Route of Administration: Subcutaneous use
Ps0005 504
San Diego, California, United States
Proportion of Subjects Who Achieve a Psoriasis Activity and Severity Index (PASI75) Response at Week 16
The PASI75 response assessments are based on at least 75% improvement in the PASI score from Baseline. This is a scoring system that averages the redness, thickness, and scaliness of the psoriatic lesions (on a 0-4 scale), and weights the resulting score by the area of skin involved. Body divided into 4 areas: head, arms, trunk to groin, and legs to top of buttocks. Assignment of an average score for the redness, thickness, and scaling for each of the 4 body areas with a score of 0 (clear) to 4 (very marked). Determining the percentage of skin covered with PSO for each of the body areas and converting to a 0 to 6 scale. Final PASI= average redness, thickness, and scaliness of the psoriatic skin lesions, multiplied by the involved psoriasis area score of the respective section, and weighted by the percentage of the person's affected skin for the respective section. The minimum possible PASI score is 0= no disease, the maximum score is 72= maximal disease.
Time frame: At Week 16
Proportion of Subjects Who Achieve a Physician's Global Assessment (PGA) Clear or Almost Clear (With at Least 2-category Improvement) Response at Week 16
The Investigator assessed the overall severity of Psoriasis (PSO) using the following 5-point scale: 0=clear, 1=almost clear, 2=mild, 3=moderate, 4=severe.
Time frame: At Week 16
Proportion of Subjects Who Achieve a Psoriasis Activity and Severity Index (PASI90) Response at Week 16
The PASI90 response assessments are based on at least 90% improvement in the PASI score from Baseline. This is a scoring system that averages the redness, thickness, and scaliness of the psoriatic lesions (on a 0-4 scale), and weights the resulting score by the area of skin involved. Body divided into 4 areas: head, arms, trunk to groin, and legs to top of buttocks. Assignment of an average score for the redness, thickness, and scaling for each of the 4 body areas with a score of 0 (clear) to 4 (very marked). Determining the percentage of skin covered with PSO for each of the body areas and converting to a 0 to 6 scale. Final PASI= average redness, thickness, and scaliness of the psoriatic skin lesions, multiplied by the involved psoriasis area score of the respective section, and weighted by the percentage of the person's affected skin for the respective section. The minimum possible PASI score is 0= no disease, the maximum score is 72= maximal disease.
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Ps0005 502
West Des Moines, Iowa, United States
Ps0005 500
Baton Rouge, Louisiana, United States
Ps0005 506
Boston, Massachusetts, United States
Ps0005 505
St Louis, Missouri, United States
Ps0005 507
Albuquerque, New Mexico, United States
Ps0005 508
Nashville, Tennessee, United States
Ps0005 501
Houston, Texas, United States
Ps0005 597
Edmonton, Alberta, Canada
Ps0005 591
Surrey, British Columbia, Canada
...and 20 more locations
Time frame: At Week 16
Change From Baseline in Dermatology Life Quality Index (DLQI) at Week 16
The DLQI is a subject-reported questionnaire designed for use in adult participants with PSO. The DLQI is a skin disease-specific questionnaire aimed at the evaluation of how symptoms and treatment affect patients' health related quality of life (HRQoL). This instrument asks participants about symptoms and feelings, daily activities, leisure, work and school, personal relationships, and treatment. It has been shown to be valid and reproducible in PSO patients. The DLQI score ranges from 0 to 30 with higher scores indicating lower HRQoL. A higher than of equal to (\>=) 4-point change in the DLQI score (DLQI response) has been reported to be meaningful for the patient (within-patient minimal important difference Basra et al, 2015) a DLQI absolute score of lower than or equal to (=\<) 1 indicates DLQI remission (i.e., no or small impact of the disease on HRQoL).
Time frame: At Week 16
Proportion of Subjects Who Achieve a Physician's Global Assessment (PGA) Clear or Almost Clear (With at Least 2-category Improvement) Response at Week 48
The Investigator assessed the overall severity of Psoriasis (PSO) using the following 5-point scale: 0= clear, 1= almost clear, 2= mild, 3= moderate, 4= severe.
Time frame: At Week 48
Proportion of Subjects Who Achieve a Psoriasis Activity and Severity Index (PASI75) Response at Week 48
The PASI75 response assessments are based on at least 75% improvement in the PASI score from Baseline. This is a scoring system that averages the redness, thickness, and scaliness of the psoriatic lesions (on a 0-4 scale), and weights the resulting score by the area of skin involved. Body divided into 4 areas: head, arms, trunk to groin, and legs to top of buttocks. Assignment of an average score for the redness, thickness, and scaling for each of the 4 body areas with a score of 0 (clear) to 4 (very marked). Determining the percentage of skin covered with PSO for each of the body areas and converting to a 0 to 6 scale. Final PASI= average redness, thickness, and scaliness of the psoriatic skin lesions, multiplied by the involved psoriasis area score of the respective section, and weighted by the percentage of the person's affected skin for the respective section. The minimum possible PASI score is 0= no disease, the maximum score is 72= maximal disease.
Time frame: At Week 48