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Adherence to Study Medication Compared to Generic Topical Clindamycin Plus Generic Topical Tretinoin in Subjects With Mild to Moderate Acne Vulgaris

Adherence to ZIANA (Clindamycin Phosphate 1.2% With Tretinoin 0.025%)Gel Compared to Generic Topical Clindamycin Plus Generic Topical Tretinoin in Subjects With Mild to Moderate Acne Vulgaris

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01047189
Enrollment
26
Registered
2010-01-12
Start date
2009-03-31
Completion date
2009-10-31
Last updated
2018-09-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acne Vulgaris

Keywords

Mild to moderate acne vulgaris

Brief summary

The purpose of this research study is to evaluate the effectiveness of two different types of topical acne medication. This study will help to determine if one combined medication results in better acne improvement than two separate medications for acne.

Interventions

DRUGclindamycin phosphate 1.2% and tretinoin 0.025%

applied once daily for 12 weeks

Topical clindamycin applied each morning for 12 weeks

Tretinoin 0.025% cream each evening for 12 weeks

Sponsors

Medicis Pharmaceutical Corporation
CollaboratorINDUSTRY
Wake Forest University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Investigator)

Eligibility

Sex/Gender
ALL
Age
12 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Males or Females 12 years of age or older with a diagnosis of mild to moderate acne vulgaris. * Subjects must sign written informed consent and agree to come for all study visits.

Exclusion criteria

* Use of experimental drugs within 1 month prior to initiation of study therapy. * Pregnant and nursing females will not be allowed in the study, and females of childbearing potential will have a pregnancy test at baseline. Females of childbearing potential must agree to use approved birth control methods for the duration of the study. * Use of systemic retinoids within 2 months of enrollment, use of any topical retinoids, systemic antibiotics, nicotinamide, systemic steroids or any other medication that may confound the results of the study within 1 month prior to start of the study * Use of any other topical medications for acne, including cosmetics containing retinol, within 2 weeks prior to study entry. * Any skin condition or disease that may require concurrent therapy or may confound the evaluation; * History of hypersensitivity to any of the formulation components; * Facial skin cancer or facial actinic keratosis; * Use of any photosensitizing agents. * Use of isotretinoin within the last 6 months. * Chemical peels, microdermabrasion or laser resurfacing within 3 months of study entry. * Crohns disease, ulcerative colitis, or have developed colitis with past antibiotic use.

Design outcomes

Primary

MeasureTime frameDescription
Measured Adherence to ZIANA Gel or Generic Topical Clindamycin 1% Gel Each Morning Plus Generic Topical Tretinoin 0.025% Cream Each Evening in Subjects With Mild to Moderate Acne12 weeksPercentage of prescribed doses taken as measured by a Medication Event Monitoring System (MEMS) cap

Secondary

MeasureTime frame
The Change (Dynamic Assessment) From Baseline to Week 12 (or End of Treatment) in Total Acne Lesion CountBaseline to 12 weeks

Countries

United States

Participant flow

Recruitment details

Participants were recruited from IRB approved advertising and the Wake Forest University Health Sciences Dermatology Clinic

Participants by arm

ArmCount
Ziana Gel
Ziana gel (clindamycin phosphate 1.2% and tretinoin 0.025%) applied once daily for 12 weeks
13
Clindamycin Plus Tretinoin Applied Separately
Generic clindamycin 1% gel plus tretinoin 0.025% cream
13
Total26

Baseline characteristics

CharacteristicClindamycin Plus Tretinoin Applied SeparatelyZiana GelTotal
Age, Categorical
<=18 years
2 Participants7 Participants9 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
11 Participants6 Participants17 Participants
Age, Continuous26.2 years20.1 years23.1 years
Region of Enrollment
United States
13 participants13 participants26 participants
Sex: Female, Male
Female
6 Participants9 Participants15 Participants
Sex: Female, Male
Male
7 Participants4 Participants11 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
1 / 130 / 13
serious
Total, serious adverse events
0 / 130 / 13

Outcome results

Primary

Measured Adherence to ZIANA Gel or Generic Topical Clindamycin 1% Gel Each Morning Plus Generic Topical Tretinoin 0.025% Cream Each Evening in Subjects With Mild to Moderate Acne

Percentage of prescribed doses taken as measured by a Medication Event Monitoring System (MEMS) cap

Time frame: 12 weeks

Population: All patients were analyzed up to end of treatment or last visit.

ArmMeasureValue (MEDIAN)
Ziana GelMeasured Adherence to ZIANA Gel or Generic Topical Clindamycin 1% Gel Each Morning Plus Generic Topical Tretinoin 0.025% Cream Each Evening in Subjects With Mild to Moderate Acne88 Percent of doses
Clindamycin Plus Tretinoin Applied SeparatelyMeasured Adherence to ZIANA Gel or Generic Topical Clindamycin 1% Gel Each Morning Plus Generic Topical Tretinoin 0.025% Cream Each Evening in Subjects With Mild to Moderate Acne61 Percent of doses
Secondary

The Change (Dynamic Assessment) From Baseline to Week 12 (or End of Treatment) in Total Acne Lesion Count

Time frame: Baseline to 12 weeks

Population: All patients were analyzed up to end of treatment or last visit.

ArmMeasureValue (MEAN)
Ziana GelThe Change (Dynamic Assessment) From Baseline to Week 12 (or End of Treatment) in Total Acne Lesion Count-51 percentage of lesions
Clindamycin Plus Tretinoin Applied SeparatelyThe Change (Dynamic Assessment) From Baseline to Week 12 (or End of Treatment) in Total Acne Lesion Count-32 percentage of lesions
p-value: 0.05Kruskal-Wallis

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026