NCT00834210

Brief Summary

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

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
171

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Dec 2008

Shorter than P25 for phase_4

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2008

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

January 30, 2009

Completed
4 days until next milestone

First Posted

Study publicly available on registry

February 3, 2009

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2009

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2009

Completed
2.2 years until next milestone

Results Posted

Study results publicly available

October 31, 2011

Completed
Last Updated

October 31, 2011

Status Verified

September 1, 2011

Enrollment Period

9 months

First QC Date

January 30, 2009

Results QC Date

September 22, 2011

Last Update Submit

September 22, 2011

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change From Baseline in Inflammatory Lesion Counts (Papules,Pustules, and Nodules) at Week 12

    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).

    Baseline, Week 12

Secondary Outcomes (3)

  • Change From Baseline in Investigator Global Assessment at Week 12

    Baseline, Week 12

  • Change From Baseline in Overall Disease Severity at Week 12

    Baseline, Week 12

  • Change From Baseline in Non-Inflammatory Lesion Counts (Open and Closed Comedones) at Week 12

    Baseline, Week 12

Study Arms (2)

1

ACTIVE COMPARATOR

Dapsone Gel 5% and Tazarotene Cream 0.1%

Drug: Dapsone

2

ACTIVE COMPARATOR

Tazarotene Cream 0.1%

Drug: Tazarotene

Interventions

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

Also known as: Aczone Gel 5%; Tazorac Cream 0.1%
1

Tazarotene Cream 0.1%, 1 pea-size amount QD x 12 weeks

Also known as: Tazorac Cream 0.1%
2

Eligibility Criteria

Age12 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • 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

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Unknown Facility

Fremont, California, United States

Location

MeSH Terms

Conditions

Acne Vulgaris

Interventions

Dapsonetazarotene

Condition Hierarchy (Ancestors)

Acneiform EruptionsSkin DiseasesSkin and Connective Tissue DiseasesSebaceous Gland Diseases

Intervention Hierarchy (Ancestors)

SulfonesSulfur CompoundsOrganic Chemicals

Results Point of Contact

Title
Vice President, Medical Affairs
Organization
Allergan, Inc.

Study Officials

  • Medical Director

    Allergan

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 30, 2009

First Posted

February 3, 2009

Study Start

December 1, 2008

Primary Completion

September 1, 2009

Study Completion

September 1, 2009

Last Updated

October 31, 2011

Results First Posted

October 31, 2011

Record last verified: 2011-09

Locations