A Phase 3, Vehicle-controlled Efficacy and Safety Study of IDP-123 Lotion in the Treatment of Acne Vulgaris (301)

Study Overview
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Brief Summary
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This is a multicenter, randomized, double-blind, vehicle-controlled, 12-week study designed to assess the safety, efficacy, and tolerability of IDP-123 Lotion in comparison with IDP-123 Vehicle Lotion.

Detailed Description
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This is a multi-center, randomized, double-blind, vehicle-controlled, 12-week study designed to assess the safety, efficacy, and tolerability of IDP-123 Lotion and IDP-123 Vehicle Lotion. To be eligible for the study subjects must be at least 9 years of age and have a clinical diagnosis of moderate to severe acne.

Official Title
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A Phase 3, Multi-Center, Randomized, Double-Blind, Vehicle-Controlled, 2 Arm, Parallel Group Study Comparing the Safety and Efficacy of IDP-123 Lotion and IDP-123 Vehicle Lotion in the Treatment of Acne Vulgaris

Conditions
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Acne Vulgaris

Intervention / Treatment
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* Drug: IDP-123 Lotion
* Drug: IDP-123 Vehicle Lotion


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Male or female at least 9 years of age and older; Written and verbal informed consent must be obtained. Subjects less than age of consent must sign an assent for the study and a parent or a legal guardian must sign the informed consent (if subject reaches age of consent during the study they should be re-consented at the next study visit); Subject must have a score of 3 (moderate) or 4 (severe) on the Evaluator's Global Severity assessment at the baseline visit; Subjects with facial acne inflammatory lesion (papules, pustules, and nodules) count no less than 20 but no more than 50; Subjects with facial acne non-inflammatory lesion (open and closed comedones) count no less than 25 but no more than 100; Subjects with two or fewer nodules Exclusion Criteria: Use of an investigational drug or device within 30 days of enrollment or participation in a research study concurrent with this study; Any dermatological conditions on the face that could interfere with clinical evaluations such as acne conglobata, acne fulminans, secondary acne, perioral dermatitis, clinically significant rosacea, gram-negative folliculitis, dermatitis, eczema; Any underlying disease(s) or some other dermatological condition of the face that requires the use of interfering topical or systemic therapy or makes evaluations and lesion count inconclusive; Subjects with a facial beard or mustache that could interfere with the study assessments; Subjects with more than two (2) facial nodules; Evidence or history of cosmetic-related acne

Ages Eligible for Study
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Minimum Age: 9 Years
Maximum Age: 99 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: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: IDP-123 Lotion<br>Tazarotene 0.045% Lotion | Drug: IDP-123 Lotion<br>* Tazarotene 0.045% Lotion<br>* Other names: IDP-123;|
| Placebo Comparator: IDP-123 Vehicle Lotion<br>Vehicle Lotion | Drug: IDP-123 Vehicle Lotion<br>* Vehicle Lotion<br>* Other names: Vehicle;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Absolute Change in Mean Lesion Counts at Week 12 | For noninflammatory facial lesions, open comedones (blackheads) and closed comedones (whiteheads) were recorded as a single count. For inflammatory facial lesions, papules (solid, elevated lesion less than 5 mm) and pustules (elevated lesion containing pus less than 5 mm) were recorded as a single count, while nodular lesions (palpable subcutaneous lesion greater than 5 mm) were counted and recorded separately. | Baseline to Week 12 | 
| Percentage of Subjects Who Had at Least a 2-grade Reduction From Baseline at Week 12 in the Evaluator's Global Severity Score (EGSS) and Had an EGSS at Week 12 That Equated to Clear or Almost Clear | Evaluator's Global Severity Score (EGSS) was determined based on evaluator-blinded evaluations of the signs and symptoms of acne vulgaris. Evaluations were scored on a scale of 0-4, with 0 being clear and 4 being severe. | Baseline to Week 12 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage Change in Mean Lesion Counts at Week 12 | For noninflammatory facial lesions, open comedones (blackheads) and closed comedones (whiteheads) were recorded as a single count. For inflammatory facial lesions, papules (solid, elevated lesion less than 5 mm) and pustules (elevated lesion containing pus less than 5 mm) were recorded as a single count, while nodular lesions (palpable subcutaneous lesion greater than 5 mm) were counted and recorded separately. | Baseline to Week 12 | 
| Percentage of Subjects Who Had at Least a 2-grade Reduction From Baseline at Week 12 in the Evaluator's Global Severity Score (EGSS) | Evaluator's Global Severity Score (EGSS) was determined based on evaluator-blinded evaluations of the signs and symptoms of acne vulgaris. Evaluations were scored on a scale of 0-4, with 0 being clear and 4 being severe. | Baseline to Week 12 | 
| Percentage Change in Mean Lesion Counts at Week 8 | For noninflammatory facial lesions, open comedones (blackheads) and closed comedones (whiteheads) were recorded as a single count. For inflammatory facial lesions, papules (solid, elevated lesion less than 5 mm) and pustules (elevated lesion containing pus less than 5 mm) were recorded as a single count, while nodular lesions (palpable subcutaneous lesion greater than 5 mm) were counted and recorded separately. | Baseline to Week 8 | 
| Percentage Change in Mean Lesion Counts at Week 4 | For noninflammatory facial lesions, open comedones (blackheads) and closed comedones (whiteheads) were recorded as a single count. For inflammatory facial lesions, papules (solid, elevated lesion less than 5 mm) and pustules (elevated lesion containing pus less than 5 mm) were recorded as a single count, while nodular lesions (palpable subcutaneous lesion greater than 5 mm) were counted and recorded separately. | Baseline to Week 4 |