A Comparison of 122-0551 Foam Versus Vehicle Foam in Subjects With Plaque Psoriasis (Study 306)

Study Overview
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Brief Summary
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This Phase 3 study (Study 306) has been designed to determine and compare the efficacy and safety of 122-0551 Foam and Vehicle Foam applied twice daily for two weeks in subjects with plaque psoriasis.

Official Title
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A Multicenter, Randomized, Double-Blind, Parallel Group Comparison of 122-0551 Foam Versus Vehicle Foam in Subjects With Plaque Psoriasis (Study 306)

Conditions
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Plaque Psoriasis

Intervention / Treatment
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* Drug: 122-0551 Foam
* Drug: Vehicle Foam


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Subject has a clinical diagnosis of stable plaque psoriasis involving a minimum of 2% and no more than 12% affected body surface area. Subject has an Investigator's Global Assessment (IGA) score of at least three (moderate) at study start. If subject is a woman of childbearing potential, she must have a negative urine pregnancy test and agree to use an effective form of birth control for the duration of the study. Exclusion Criteria: Subject has spontaneously improving or rapidly deteriorating plaque psoriasis. Subject has guttate, pustular, erythrodermic or other non-plaque forms of psoriasis. Subject has a physical condition which, in the investigator's opinion, might impair evaluation of plaque psoriasis, or which exposes the subject to an unacceptable risk by study participation. Subject has used any phototherapy (including laser), photo-chemotherapy or other forms of photo based therapy for the treatment of their psoriasis within 30 days prior to study start. Subject has used any systemic methotrexate, retinoids, systemic corticosteroids [including intralesional, intra-articular, and intramuscular corticosteroids], cyclosporine or analogous products within 90 days prior to study start. Subject has used any systemic biologic therapy (i.e., FDA-approved or experimental therapy) within five half-lives of the biologic prior to study start. Subject had prolonged exposure to natural or artificial sources of ultraviolet radiation within 30 days prior to study start or is intending to have such exposure during the study.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: 122-0551 Foam<br>122-0511 Foam, topically applied twice daily | Drug: 122-0551 Foam<br>* Topical Foam<br>|
| Placebo Comparator: Vehicle Foam<br>Vehicle Foam, topically applied twice daily | Drug: Vehicle Foam<br>* Topical Foam<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Subjects Rated a Treatment Success Based on the Investigator's Global Assessment (IGA) | The IGA score is a static evaluation of the overall or average degree of severity of a subject's disease, taking into account all of the subject's psoriatic lesions. Treatment success is defined as a score of 0 or 1 representing cleared or almost cleared at Day 15 with at least a two grade decrease in severity score relative to Baseline. IGA is measured on a 5-point scale, ranging from 0 (clear) to 4 (severe/very severe). | Day 15 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Subjects Rated a Treatment Success for Each of the Clinical Signs of Psoriasis (Scaling, Erythema and Plaque Elevation) | A static assessment of the overall or average degree of severity of each of three key characteristics present within all of the subject's psoriatic lesions. Treatment success is defined as a score of 0 or 1 representing cleared or almost cleared at Day 15 with at least a two grade decrease in severity score relative to Baseline. Each clinical sign of psoriasis is measured on a 5-point scale, ranging from 0 (clear) to 4 (severe/very severe). | Day 15 |