This study is a multi-center, randomized, double-blind, vehicle-controlled phase III study to evaluate the efficacy, safety, and PK profile of roflumilast cream 0.3% in Chinese subjects ≥6 years of age with plaque psoriasis.
Fully understand the objectives and requirements of this study, voluntarily participate in the clinical trial and sign the informed consent form (ICF), and be able to complete all visits as required by the protocol.
Aged ≥ 6 years at the time of signing the ICF, male or female.
Clinical diagnosis of plaque psoriasis before the first dose in this study, with a disease duration of ≥ 6 months (for those aged ≥ 12 years) or ≥ 3 months (for those aged 6-11 years) and stable for the last 4 weeks.
Psoriasis involving 2%-20% BSA (excluding the scalp, palms, and soles);
Non-plaque psoriasis (e.g., guttate psoriasis, pustular psoriasis, erythrodermic psoriasis, and arthropathic psoriasis) or drug-induced psoriasis.
Skin disorders or other conditions that, in the judgment of the investigator, may interfere with the assessment of endpoints relevant to this study, including but not limited to: viral lesions, fungal and bacterial skin infections, parasitic infections, syphilis or tuberculosis-related skin manifestations, etc.
Prior use of etanercept within 4 weeks before the first dose of this study, or use of adalimumab and/or infliximab within 8 weeks before the first dose of this study, or prior use of another biologic within 12 weeks before the first dose of this study (or within 5 half-lives of the biologic at the time of the first dose of this study, whichever is longer).
Prior use of systemic drugs for psoriasis treatment or any other agents which may impact efficacy assessment of psoriasis, including but not limited to oral or intravenous glucocorticoids, retinoic acids, methotrexate, cyclosporine, and other systemic immunosuppressive agents or a class of drugs (including Chinese herbal formulas, herbs, proprietary Chinese medicines, etc.) containing Chinese medicinal ingredients within 4 weeks of the first dose of this study.
Parallel
Roflumilast Cream 0.3%
DrugRoflumilast Cream 0.3%
Vehicle cream
DrugVehicle cream
Proportion of subjects achieving IGA treatment success after 8 weeks of treatment
The IGA is a static evaluation of qualitative overall psoriasis severity. This global assessment scale is an ordinal scale with five severity grades (reported only in integers of 0 to 4). Each grade is defined by a distinct and clinically relevant morphologic description that minimizes inter-observer variability. Treatment success is defined as an IGA score of 0 or 1 with an improvement of ≥ 2 points from baseline.
Proportion of subjects achieving PASI-75 after 8 weeks of treatment.
PASI combines the assessment of the severity of lesions and the area affected into a single score in the range 0 (no disease) to 72 (maximal disease). Subjects achieving PASI-75 are those who achieve a 75% reduction in PASI from baseline.
Proportion of subjects achieving PASI-90 after 8 weeks of treatment.
PASI combines the assessment of the severity of lesions and the area affected into a single score in the range 0 (no disease) to 72 (maximal disease). Subjects achieving PASI-90 are those who achieve a 90% reduction in PASI from baseline.
Time required to achieve PASI-50 from baseline.
Time required to achieve PASI-50 (i.e., PASI reduction ≥ 50% from baseline) from baseline.
Proportion of subjects achieving IGA treatment success after 4 weeks of treatment.
The IGA is a static evaluation of qualitative overall psoriasis severity. This global assessment scale is an ordinal scale with five severity grades (reported only in integers of 0 to 4). Each grade is defined by a distinct and clinically relevant morphologic description that minimizes inter-observer variability. Treatment success is defined as an IGA score of 0 or 1 with an improvement of ≥ 2 points from baseline.
Click on the lead sponsor to view all of their trials.
