Long-Term Safety of IDP-118 Lotion in the Treatment of Plaque Psoriasis

Study Overview
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Brief Summary
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The objective of this study is to evaluate the long-term safety of IDP-118 lotion.

Detailed Description
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This is a multicenter, open-label study of the long-term safety of IDP-118 lotion in participants with plaque psoriasis.

Official Title
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A Phase 3, Multicenter, Open Label Study to Evaluate the Long-Term Safety of IDP-118 Lotion in the Treatment of Plaque Psoriasis

Conditions
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Plaque Psoriasis

Intervention / Treatment
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* Drug: IDP-118 Lotion


Participation Criteria
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Eligibility Criteria
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Key Inclusion Criteria: Male or female, of any race, at least 18 years of age (inclusive). Freely provides both verbal and written informed consent. Has an area of plaque psoriasis appropriate for topical treatment that covers a Body Surface Area (BSA) of at least 3 percent (%), but no more than 12%. The face, scalp, palms, soles, axillae and intertriginous areas are to be excluded in this calculation. Is willing and able to avoid prolonged exposure of the treatment area to ultraviolet radiation (natural and artificial) for the duration of the study. Has a clinical diagnosis of psoriasis at the Baseline visit with an Investigators Global Assessment (IGA) score of 3 or 4 (The face, scalp, palms, soles, axillae and intertriginous areas are to be excluded in this assessment). Key Exclusion Criteria: Has spontaneously improving or rapidly deteriorating plaque psoriasis or pustular psoriasis, as determined by the investigator. Presents with psoriasis that was treated with prescription medication and failed to respond to treatment, even partially or temporarily, as determined by the Investigator. Presents with any concurrent skin condition that could interfere with the evaluation of the treatment areas, as determined by the investigator. Is pregnant, nursing an infant, or planning a pregnancy during the study period. Has received treatment with any investigational drug or device within 60 days or 5 drug half lives (whichever is longer) prior to the Baseline visit, or is concurrently participating in another clinical study with an investigational drug or device.

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
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: IDP-118 Lotion<br>IDP-118 lotion (halobetasol propionate 0.01%, tazarotene 0.045%) will be applied topically on the affected area once daily for 8 weeks and then as needed once daily for up to 1 year. | Drug: IDP-118 Lotion<br>* IDP-118 lotion will be applied as per the instructions provided by the investigational center staff.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Participants Who Experienced Grade 3 Local Skin Reactions | Local skin reactions (itching, dryness, burning/stinging) graded at a level of 3 (severe) at any point in the study following the first application of study drug were assessed. Severe Itching (as reported by the participant within the last 24 hours) referred to the intense itching that may interrupt daily activities and/or sleep. Severe dryness (as assessed by the investigator) referred to as marked roughness of the skin. Severe burning/stinging (as reported by the participant within the last 24 hours) referred to as hot burning sensation that causes definite discomfort and may interrupt daily activities and/or sleep. A summary of serious and all other non-serious adverse events, regardless of causality, is located in the Reported Adverse Events module. | Baseline up to Week 52 |