This multicenter, randomized, double-blind, active-controlled study aims to evaluate the efficacy and safety of picankibart in Chinese patients with plaque psoriasis who demonstrated inadequate responses to interleukin-17 (IL-17) monoclonal antibody therapy and subsequently switched to picankibart. The trial will enroll approximate 310 participants with confirmed plaque psoriasis diagnosis and a poor response to IL-17 monoclonal antibody treatment. The study includes a 4-week screening phase, followed by an active treatment period of either 36 weeks, and concludes with a safety follow-up assessment at Week 48.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
308
The participants in picankibart treatment group will receive picankibart 200mg SC at Weeks 0, 4, 8, 20 and 32. The participants in IL-17 mAb continued treatment group will receive picankibart 200mg SC at Weeks 16, 20, 24 and 36.
The participants in IL-17 mAb continued treatment group who have received secukinumab before enrollment, will receive secukinumab 300mg SC at Weeks 0, 4, 8 and 12.
The participants in picankibart treatment group will receive placebo SC at Weeks 12, 16, 24 and 36. The participants in IL-17 mAb continued treatment group will receive placebo SC at Week 32.
The participants in IL-17 mAb continued treatment group who have received ixekizumab before enrollment, will receive ixekizumab 80mg SC at Weeks 0, 4, 8 and 12.
Dermatology Hospital of Shandong First Medical University (Shandong Provincial Hospitial of Dermatology)
Jinan, Shandong, China
The percentage of participants achieving static Physician's Global Assessment (sPGA) score of clear (0) or almost clear (1)
The static Physician's Global Assessment (sPGA) is a 5-point score ranging from 0 to 4, based on the physician's assessment of the average thickness, erythema, and scaling of all psoriatic lesions. A lower score indicates less body coverage, with 0 being clear and 1 being almost clear.
Time frame: Week 16
The percentage of participants achieving a Psoriasis Area and Severity Index (PASI) 75 response
The Psoriasis Area and Severity Index (PASI) is a composite score based on the degree of effect on body surface area of psoriasis and the extension of erythema (reddening), induration (thickness), desquamation (scaling) of the lesions and area affected as observed on the day of examination. The PASI score ranges from 0 to 72, where 0 indicates no psoriasis and 72 indicates very severe psoriasis. PASI 75 is defined as at least a 75% reduction in PASI score compared with the Baseline PASI score.
Time frame: Week 16
The percentage of participants achieving a PASI 90 response
The Psoriasis Area and Severity Index (PASI) is a composite score based on the degree of effect on body surface area of psoriasis and the extension of erythema (reddening), induration (thickness), desquamation (scaling) of the lesions and area affected as observed on the day of examination. The PASI score ranges from 0 to 72, where 0 indicates no psoriasis and 72 indicates very severe psoriasis. PASI 90 is defined as at least a 90% reduction in PASI score compared with the Baseline PASI score.
Time frame: Week 16
The percentage of participants achieving sPGA=0
The static Physician's Global Assessment (sPGA) is a 5-point score ranging from 0 to 4, based on the physician's assessment of the average thickness, erythema, and scaling of all psoriatic lesions. A lower score indicates less body coverage, with 0 being clear.
Time frame: Week 16
The percentage of participants with involved body surface area (BSA) <3% (or ≥75% reduction relative to baseline)
The area of involved body surface area (BSA) will be estimated by the Investigator as a percentage of the subject's total body surface area wherein the area of the subject's palm will be considered as 1% of total BSA. The involved BSA ranges from 0% to 100%, where a lower BSA indicates less involved skin.
Time frame: Week 16
The percentage of participants achieving sPGA=0/1 and with involved BSA <3% (or ≥75% reduction relative to baseline)
The static Physician's Global Assessment (sPGA) is a 5-point score ranging from 0 to 4, based on the physician's assessment of the average thickness, erythema, and scaling of all psoriatic lesions. A lower score indicates less body coverage, with 0 being clear and 1 being almost clear. The area of involved involved body surface area (BSA) will be estimated by the Investigator as a percentage of the subject's total body surface area wherein the area of the subject's palm will be considered as 1% of total BSA. The involved BSA ranges from 0% to 100%, where a lower BSA indicates less involved skin.
Time frame: Week 16
The percentage of participants achieving Dermatology Life Quality Index (DLQI)=0/1 (for participants with baseline DLQI >1 only)
The Dermatology Life Quality Index (DLQI) is a self-administered, 10-question questionnaire covering 6 domains (symptoms and feelings, daily activities, leisure, work and school, personal relationships, and bother with psoriasis treatment). The response options range from 0, not affected at all, to 3, very much affected. This gives an overall range of 0 to 30 where lower scores mean better quality of life.
Time frame: Week 16
The percentage of participants achieving a PASI 100 response
The Psoriasis Area and Severity Index (PASI) is a composite score based on the degree of effect on body surface area of psoriasis and the extension of erythema (reddening), induration (thickness), desquamation (scaling) of the lesions and area affected as observed on the day of examination. The PASI score ranges from 0 to 72, where 0 indicates no psoriasis and 72 indicates very severe psoriasis. PASI 100 is defined as a 100% reduction in PASI score compared with the Baseline PASI score.
Time frame: Week 16
The change from baseline in PASI score
The Psoriasis Area and Severity Index (PASI) is a composite score based on the degree of effect on body surface area of psoriasis and the extension of erythema (reddening), induration (thickness), desquamation (scaling) of the lesions and area affected as observed on the day of examination. The PASI score ranges from 0 to 72, where 0 indicates no psoriasis and 72 indicates very severe psoriasis.
Time frame: Week 16
The change from baseline in involved BSA
The area of involved body surface area (BSA) will be estimated by the Investigator as a percentage of the subject's total body surface area wherein the area of the subject's palm will be considered as 1% of total BSA. The involved BSA ranges from 0% to 100%, where a lower BSA indicates less involved skin.
Time frame: Week 16
The percentage of participants achieving sPGA=0/1
The static Physician's Global Assessment (sPGA) is a 5-point score ranging from 0 to 4, based on the physician's assessment of the average thickness, erythema, and scaling of all psoriatic lesions. A lower score indicates less body coverage, with 0 being clear and 1 being almost clear.
Time frame: Week 44
The percentage of participants achieving sPGA=0
The static Physician's Global Assessment (sPGA) is a 5-point score ranging from 0 to 4, based on the physician's assessment of the average thickness, erythema, and scaling of all psoriatic lesions. A lower score indicates less body coverage, with 0 being clear.
Time frame: Week 44
The percentage of participants with involved BSA<3% (or ≥75% reduction relative to baseline)
The area of involved body surface area (BSA) will be estimated by the Investigator as a percentage of the subject's total body surface area wherein the area of the subject's palm will be considered as 1% of total BSA. The involved BSA ranges from 0% to 100%, where a lower BSA indicates less involved skin.
Time frame: Week 44
The percentage of participants achieving sPGA=0/1 and with involved BSA <3% (or ≥75% reduction relative to baseline)
The static Physician's Global Assessment (sPGA) is a 5-point score ranging from 0 to 4, based on the physician's assessment of the average thickness, erythema, and scaling of all psoriatic lesions. A lower score indicates less body coverage, with 0 being clear and 1 being almost clear. The area of involved BSA will be estimated by the Investigator as a percentage of the subject's total body surface area wherein the area of the subject's palm will be considered as 1% of total BSA. The involved BSA ranges from 0% to 100%, where a lower BSA indicates less involved skin.
Time frame: Week 44
The percentage of participants achieving DLQI=0/1 (for participants with baseline DLQI >1 only)
The Dermatology Life Quality Index (DLQI) is a self-administered, 10-question questionnaire covering 6 domains (symptoms and feelings, daily activities, leisure, work and school, personal relationships, and bother with psoriasis treatment). The response options range from 0, not affected at all, to 3, very much affected. This gives an overall range of 0 to 30 where lower scores mean better quality of life.
Time frame: Week 44
The percentage of participants achieving a PASI 75 response
The Psoriasis Area and Severity Index (PASI) is a composite score based on the degree of effect on body surface area of psoriasis and the extension of erythema (reddening), induration (thickness), desquamation (scaling) of the lesions and area affected as observed on the day of examination. The PASI score ranges from 0 to 72, where 0 indicates no psoriasis and 72 indicates very severe psoriasis. PASI 75 is defined as at least a 75% reduction in PASI score compared with the Baseline PASI score.
Time frame: Week 44
The percentage of participants achieving a PASI 90 response
The Psoriasis Area and Severity Index (PASI) is a composite score based on the degree of effect on body surface area of psoriasis and the extension of erythema (reddening), induration (thickness), desquamation (scaling) of the lesions and area affected as observed on the day of examination. The PASI score ranges from 0 to 72, where 0 indicates no psoriasis and 72 indicates very severe psoriasis. PASI 90 is defined as at least a 90% reduction in PASI score compared with the Baseline PASI score.
Time frame: Week 44
The percentage of participants achieving a PASI 100 response
The Psoriasis Area and Severity Index (PASI) is a composite score based on the degree of effect on body surface area of psoriasis and the extension of erythema (reddening), induration (thickness), desquamation (scaling) of the lesions and area affected as observed on the day of examination. The PASI score ranges from 0 to 72, where 0 indicates no psoriasis and 72 indicates very severe psoriasis. PASI 100 is defined as a 100% reduction in PASI score compared with the Baseline PASI score.
Time frame: Week 44
The change from baseline in PASI score
The Psoriasis Area and Severity Index (PASI) is a composite score based on the degree of effect on body surface area of psoriasis and the extension of erythema (reddening), induration (thickness), desquamation (scaling) of the lesions and area affected as observed on the day of examination. The PASI score ranges from 0 to 72, where 0 indicates no psoriasis and 72 indicates very severe psoriasis.
Time frame: Week 44
The change from baseline in involved BSA
The area of involved body surface area (BSA) will be estimated by the Investigator as a percentage of the subject's total body surface area wherein the area of the subject's palm will be considered as 1% of total BSA. The involved BSA ranges from 0% to 100%, where a lower BSA indicates less involved skin.
Time frame: Week 44
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