Dapsone Gel 5% and Tazarotene Cream 0.1% Versus Tazarotene Cream 0.1% Monotherapy for Facial Acne Vulgaris

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Allergan
ClinicalTrials.gov Identifier:
NCT00834210
First received: January 30, 2009
Last updated: September 22, 2011
Last verified: September 2011
  Purpose

A 12-week evaluation of the safety and efficacy of dapsone gel 5% when used with tazarotene cream 0.1% compared with tazarotene cream 0.1% monotherapy in treating moderate to severe facial acne vulgaris


Condition Intervention Phase
Acne Vulgaris
Drug: Dapsone
Drug: Tazarotene
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Single Blind (Investigator)
Primary Purpose: Treatment

Resource links provided by NLM:


Further study details as provided by Allergan:

Primary Outcome Measures:
  • Change From Baseline in Inflammatory Lesion Counts (Papules,Pustules, and Nodules) at Week 12 [ Time Frame: Baseline, Week 12 ] [ Designated as safety issue: No ]
    Change from baseline in inflammatory lesion count (papules, pustules and nodules) at week 12. Papules and nodules are round, solid elevations of the skin with no visible fluid; papules are smaller (less than 5 or 10 millimeters in width and depth) and nodules are larger (greater than 5 or 10 millimeters in width and depth). Pustules are small elevations of the skin containing cloudy material. A negative number change from baseline indicates a reduction in lesion counts (improvement).


Secondary Outcome Measures:
  • Change From Baseline in Investigator Global Assessment at Week 12 [ Time Frame: Baseline, Week 12 ] [ Designated as safety issue: No ]
    Change from baseline in the Investigator Global Assessment (IGA) at week 12. The IGA is a 5-point scale used by the investigator to assess overall acne severity, where 0 equals clear skin (no evidence of acne) and 4 equals severe acne. A negative number change from baseline indicates a reduction in acne severity (improvement).

  • Change From Baseline in Overall Disease Severity at Week 12 [ Time Frame: Baseline, Week 12 ] [ Designated as safety issue: No ]
    Change from baseline in overall disease severity at week 12. The overall disease severity was evaluated by the investigator using a 7-point scale to rate the overall acne severity (lesions, inflammation, facial redness and skin condition), where 0=no acne lesions and 6=most severe acne. A negative number change from baseline indicates a reduction in overall acne disease severity (improvement).

  • Change From Baseline in Non-Inflammatory Lesion Counts (Open and Closed Comedones) at Week 12 [ Time Frame: Baseline, Week 12 ] [ Designated as safety issue: No ]
    Change from baseline in non-inflammatory lesion counts(open/closed comedones) at week 12. Comedones are small bumps on the skin (lesions) caused by acne and found at the opening of a skin pore. Open comedones (also known as blackheads) have a microscopic opening to the skin surface, while closed comedones (also known as whiteheads or "pimples") lack the opening to the skin. A negative number change from baseline indicates a reduction in lesion counts (improvement).


Enrollment: 171
Study Start Date: December 2008
Study Completion Date: September 2009
Primary Completion Date: September 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: 1
Dapsone Gel 5% and Tazarotene Cream 0.1%
Drug: Dapsone
Dapsone topical gel 5%, 1 pea-size amount BID x 12 weeks and Tazarotene Cream 0.1%, 1 pea-size amount QD x 12 weeks
Other Name: Aczone Gel 5%; Tazorac Cream 0.1%
Active Comparator: 2
Tazarotene Cream 0.1%
Drug: Tazarotene
Tazarotene Cream 0.1%, 1 pea-size amount QD x 12 weeks
Other Name: Tazorac Cream 0.1%

  Eligibility

Ages Eligible for Study:   12 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Facial acne vulgaris characterized by the following: 30-100 facial inflammatory lesions; and 25-100 facial non-inflammatory lesions; stable disease, non-rapidly regressing facial acne vulgaris; and, 3 or more nodules and/or cysts (diameter of 1cm or greater). Female subjects of childbearing potential must have a negative pregnancy test at baseline and practice reliable method of contraception throughout the study

Exclusion Criteria:

  • Non-compliance with washout period; history of clinically significant anemia or hemolysis; skin disease/disorder that might interfere with diagnosis or evaluation of acne vulgaris; allergy or sensitivity to any component of the test medications
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00834210

Locations
United States, California
Fremont, California, United States
Sponsors and Collaborators
Allergan
Investigators
Study Director: Medical Director Allergan
  More Information

No publications provided

Responsible Party: Allergan
ClinicalTrials.gov Identifier: NCT00834210     History of Changes
Other Study ID Numbers: MA-ACZ0802
Study First Received: January 30, 2009
Results First Received: September 22, 2011
Last Updated: September 22, 2011
Health Authority: United States: Institutional Review Board

Additional relevant MeSH terms:
Acne Vulgaris
Acneiform Eruptions
Skin Diseases
Facial Dermatoses
Sebaceous Gland Diseases
Dapsone
Tazarotene
Nicotinic Acids
Antimalarials
Antiprotozoal Agents
Antiparasitic Agents
Anti-Infective Agents
Therapeutic Uses
Pharmacologic Actions
Folic Acid Antagonists
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Leprostatic Agents
Anti-Bacterial Agents
Keratolytic Agents
Dermatologic Agents
Vitamin B Complex
Vitamins
Micronutrients
Growth Substances
Physiological Effects of Drugs

ClinicalTrials.gov processed this record on April 22, 2014