A Study Comparing Clindamycin 1%/Benzoyl Peroxide 5% Topical Gel to Duac® Topical Gel in the Treatment of Acne Vulgaris

Overview[ - collapse ][ - ]

Purpose The objective of this study is to compare the relative efficacy and safety of the test formulation Clindamycin 1%/Benzoyl Peroxide 5% Topical Gel (Taro Pharmaceuticals Inc.) to the marketed formulation Duac® Topical Gel (Clindamycin 1%/Benzoyl Peroxide 5%) (Stiefel) in the treatment of the inflamed lesions of acne vulgaris. Both the test and reference formulations will also be compared to a placebo formulation to test for superiority.
ConditionAcne Vulgaris
InterventionDrug: Clindamycin 1%/Benzoyl Peroxide 5% Topical Gel
Drug: Duac® Topical Gel
Drug: Placebo Topical Gel
PhasePhase 1
SponsorTaro Pharmaceuticals USA
Responsible PartyTaro Pharmaceuticals USA
ClinicalTrials.gov IdentifierNCT01769664
First ReceivedOctober 11, 2012
Last UpdatedJanuary 19, 2014
Last verifiedJanuary 2014

Tracking Information[ + expand ][ + ]

First Received DateOctober 11, 2012
Last Updated DateJanuary 19, 2014
Start DateSeptember 2012
Estimated Primary Completion DateAugust 2013
Current Primary Outcome MeasuresBioequivalence of test gel to reference gel [Time Frame: Week 11 (study day 77)] [Designated as safety issue: No]Bioequivalence will be determined by evaluating the mean percent change from baseline to week 11 in the number of inflammatory lesions.
Current Secondary Outcome MeasuresSuperiority against placebo [Time Frame: Week 11 (study day 77)] [Designated as safety issue: No]The superiority of the test and reference against the placebo will be tested for the mean percent reduction in inflamed lesion count at week 11.

Descriptive Information[ + expand ][ + ]

Brief TitleA Study Comparing Clindamycin 1%/Benzoyl Peroxide 5% Topical Gel to Duac® Topical Gel in the Treatment of Acne Vulgaris
Official TitleA Randomized, Double-Blind, Multiple-Site, Placebo-Controlled, Parallel Design Study Comparing Clindamycin 1%/Benzoyl Peroxide 5% Topical Gel (Taro Pharmaceuticals Inc.) to Duac® Topical Gel Clindamycin 1%/Benzoyl Peroxide 5% (Stiefel) in the Treatment of Acne Vulgaris
Brief Summary
The objective of this study is to compare the relative efficacy and safety of the test
formulation Clindamycin 1%/Benzoyl Peroxide 5% Topical Gel (Taro Pharmaceuticals Inc.) to
the marketed formulation Duac® Topical Gel (Clindamycin 1%/Benzoyl Peroxide 5%) (Stiefel) in
the treatment of the inflamed lesions of acne vulgaris. Both the test and reference
formulations will also be compared to a placebo formulation to test for superiority.
Detailed DescriptionNot Provided
Study TypeInterventional
Study PhasePhase 1
Study DesignAllocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment
ConditionAcne Vulgaris
InterventionDrug: Clindamycin 1%/Benzoyl Peroxide 5% Topical Gel
Clindamycin 1%/Benzoyl Peroxide 5% Topical Gel (Taro Pharmaceuticals Inc.) applied once a day in the evening for 77 days (11 weeks)
Drug: Duac® Topical Gel
Duac® (Clindamycin 1%/Benzoyl Peroxide 5%) Topical Gel (Stiefel) applied once a day in the evening for 77 days (11 weeks)
Drug: Placebo Topical Gel
Placebo (Vehicle) Topical Gel (Taro Pharmaceuticals Inc.) applied once a day in the evening for 77 days (11 weeks)
Study Arm (s)
  • Experimental: Clindamycin 1%/Benzoyl Peroxide 5% Topical Gel
    Clindamycin 1%/Benzoyl Peroxide 5% Topical Gel (Taro Pharmaceuticals Inc.)
  • Active Comparator: Duac® Topical Gel
    Duac® (Clindamycin 1%/Benzoyl Peroxide 5%) Topical Gel (Stiefel)
  • Placebo Comparator: Placebo Topical Gel
    Placebo (Vehicle) Topical Gel (Taro Pharmaceuticals Inc.)

Recruitment Information[ + expand ][ + ]

Recruitment StatusCompleted
Estimated Enrollment650
Estimated Completion DateAugust 2013
Estimated Primary Completion DateJune 2013
Eligibility Criteria
Inclusion Criteria:

- Male or non-pregnant, non-lactating female, between 12 and 40 years of age with a
clinical diagnosis of acne vulgaris.

- Signed informed consent form. For a minor, the parent or legal guardian will sign the
consent form and patient will sign assent to participate form.

- If female of child-bearing potential, prepare to abstain from sexual intercourse or
use a reliable method of contraception during the study. Patients on hormonal
contraceptives must have been on the same for three months prior to baseline visit
and continue throughout the duration of the study.

- Have facial acne with 20 or more facial inflammatory lesions and 25 or more
non-inflammatory lesions and 2 or less nodulocystic lesions and have an Investigator
Global Assessment score of 2, 3 or 4.

- Willing to comply with the study requirements and restrictions including refraining
from the use of all other topical acne medications or antibiotics during the
treatment period.

Exclusion Criteria:

- Patient has more than 2 facial nodular lesions.

- Patient has active cystic acne.

- Patient has acne conglobata.

- Patients with excessive facial hair that would interfere with the diagnosis or
assessment of acne.

- Patients with tatoos or excessive facial scarring that may interfere with the
evaluation of the patient's acne.

- Patients with active facial sunburn, peeling due to sunburn and patients who will be
exposed to excessive sunlight during the study.

- Any skin condition other than acne vulgaris that would interfere with the evaluation
of the patient's acne.

- Females who are pregnant, lactating or likely to become pregnant during the study.

- Patients with a history of or active colitis other than irritable bowel syndrome.

- History of allergy or hypersensitivity to Clindamycin, Lincomycin or benzoyl peroxide
or history of any drug hypersensitivity or intolerance which would compromise the
patient's safety or the study.

- Significant history or current evidence of chronic infectious disease, system
disorder, organ disorder or other medical condition that would place the patient at
undue risk by participation.

- Use on the face within 1 month prior to screening/baseline or during the study of the
following: cryodestruction or chemodestruction, dermabrasion, photodynamic therapy,
acne surgery, intralesional steroids, x-ray therapy.

- Use of the following within 1 month prior to screening/baseline: spironolactone,
systemic steroids, systemic antibiotics, systemic treatment for acne vulgaris (other
than oral retinoids which require a 6 month washout), systemic anti-inflammatory
agents.

- Use of oral isotretinoin (Accutane®) or oral retinoids within 6 months, or
therapeutic vitamin A supplements greater than 10,000 units/day.

- Use within 2 weeks prior to screening/baseline of the following: topical steroids,
topical retinoids, topical acne treatments including over-the-counter preparations,
topical anti-inflammatory agents, medicated cleansers, topical antibiotics.

- Receipt of any drug as part of a research study within 30 days.

- Female patients taking hormonal contraceptives or oral estrogen for less than 3
months and those that plan to change the dosage regimen during the course of the
study.

- Previous participation in this study.

- Employees of the investigator or research center or their immediate family members.
GenderBoth
Ages12 Years
Accepts Healthy VolunteersNo
ContactsNot Provided
Location CountriesNot Provided

Administrative Information[ + expand ][ + ]

NCT Number NCT01769664
Other Study ID NumbersCLBG 1209
Has Data Monitoring CommitteeNo
Information Provided ByTaro Pharmaceuticals USA
Study SponsorTaro Pharmaceuticals USA
CollaboratorsNot Provided
Investigators Not Provided
Verification DateJanuary 2014