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| ID | Type | Description | Link |
|---|---|---|---|
| C0000-408 |
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| Name | Class |
|---|---|
| GlaxoSmithKline | INDUSTRY |
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This is a randomized, half-face study. On 1 side of the face, the subject will apply 1 of the 2 test products, clindamycin and benzoyl peroxide or dapsone gel and the contra lateral side of the face will remain non-treated to serve as a control.
This is a single-blind (blinded expert grader), parallel group, randomized, half-face study being conducted at one clinical site. On 1 side of the face, the subject will apply 1 of the 2 test products, clindamycin and benzoyl peroxide or dapsone gel and the contra lateral side of the face will remain non-treated to serve as a control. Approximately 25-30 male and female healthy subjects without facial acne, aged 18 to 45, will be randomly assigned to each product.
The eligible subjects who qualify will be entered into a 2-week treatment phase. The first of application of the study medication will be supervised at the site, Monday through Friday of each week. Any additional applications should be applied by the subjects at home each evening and the times of application recorded on a diary card. Subjects will apply the study product at home on Saturdays and Sundays and record the times of application on a diary card.
A blinded expert grader will rate comparative product tolerance during the study before study product is applied.
Instrumentation measurements of TEWL will be utilized to evaluate product mildness.
Duplicate sebum samples will be taken from the left and right forehead areas and assessed.
Subject will complete questionnaires and all adverse events will be recorded.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Clindamycin/BPO gel | Experimental | Once-daily applications of clindamycin/BPO gel to the randomized side of the face either left or right. |
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| Dapsone gel | Active Comparator | Twice-daily applications of dapsone gel to one side of the face. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| clindamycin and benzoyl peroxide | Drug | Daily applications, to the randomized side of the face either left or right, of clindamycin and benzoyl peroxide |
|
| Measure | Description | Time Frame |
|---|---|---|
| Skin Erythema (Redness) | Assessment of erythema as part of an evaluation of tolerance of two treatments: clindamycin and benzoyl peroxide or dapsone gel. This was done by visual assessment by an independent blinded grader using the grading scale shown below. Grade Description 0 None 2 Mild erythema 4 Moderate confluent erythema 6 Marked erythema with some edema 8 Marked erythema, edema, possible erosion | 2 Weeks |
| Skin Dryness | The amount of dryness on the left and right cheek of each panelist. The scale used to evaluate skin dryness is: Grade Description 0 None 2 Slight flaking 4 Moderate flaking/scaling 6 Marked scaling / slight fissuring 8 Severe scaling, fissuring Expert Grader assessments of dryness were taken prior to product application on Days 0, 1, 2, 3, 6, 7, 8, 9, 10, 13 and 14. | Baseline, Day 1through Day 14 |
| Measure | Description | Time Frame |
|---|---|---|
| Transepidermal Water Loss (TEWL) | To assess skin moisture and hydration using transepidermal water loss (TEWL). These tables record the data obtained for each panelist at Baseline, and on Days 3, 7 and 14 or upon early termination of site(s), if applicable. Results are measured on a continuous scale. | 2 Weeks |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| GSK Clinical Trials | GlaxoSmithKline | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| cyberDERM | Broomall | Pennsylvania | 19008 | United States |
Panelists who met the eligibility criteria and were willing to participate in the study were required to undergo a 3-day pre-trial conditioning period where they had to stop the use of all facial products. Panelists were required to use the provided Soap Free Cleanser (SFC) for washing their face and were allowed to apply their normal makeup.
Clinical research center. Subject recruitment occurred from July 16, 2009 to Aug. 11, 2009
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| ID | Title | Description |
|---|---|---|
| FG000 | Clindamycin and BPO Gel | Daily applications of Clindamycin and benzoyl peroxide gel to one-half of the face. Clindamycin and benzoyl peroxide facial gel was applied daily to one side of the face of all subjects in this group in a split-face model. On weekdays during the two-week trial, the investigator scored Erythema on a scale of 0 (none) to 8 (severe) and Dryness on a scale of 0 (none) to 8 (severe). |
| FG001 | Dapsone Gel | Twice-daily applications of dapsone gel to one-half of the face. Dapsone facial gel was applied twice daily to one side of the face of all subjects in this group in a split-face model. On weekdays during the two-week trial, the investigator scored Erythema on a scale of 0 (none) to 8 (severe) and Dryness on a scale of 0 (none) to 8 (severe). |
| Title | Milestones | Reasons Not Completed | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
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| ID | Title | Description |
|---|---|---|
| BG000 | Clindamycin and BPO Gel | Daily applications of Clindamycin and benzoyl peroxide gel to one-half of the face. Clindamycin and benzoyl peroxide facial gel was applied daily to one side of the face of all subjects in this group in a split-face model. On weekdays during the two-week trial, the investigator scored Erythema on a scale of 0 (none) to 8 (severe) and Dryness on a scale of 0 (none) to 8 (severe). |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Categorical | Count of Participants |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Skin Erythema (Redness) | Assessment of erythema as part of an evaluation of tolerance of two treatments: clindamycin and benzoyl peroxide or dapsone gel. This was done by visual assessment by an independent blinded grader using the grading scale shown below. Grade Description 0 None 2 Mild erythema 4 Moderate confluent erythema 6 Marked erythema with some edema 8 Marked erythema, edema, possible erosion | ITT | Posted | Mean | Standard Deviation | Units on a scale | 2 Weeks |
|
14 days.
Any study product-related AEs ongoing at the end of the treatment period were followed until they resolve, the condition stabilizes, the events are otherwise explained, or the subject is lost to follow-up. In addition, all SAEs were followed until resolution as previously stated for study product-related AEs.
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Clindamycin and BPO Gel | Daily applications of Clindamycin and benzoyl peroxide gel to one-half of the face. Clindamycin and benzoyl peroxide facial gel was applied daily to one side of the face of all subjects in this group in a split-face model. On weekdays during the two-week trial, the investigator scored Erythema on a scale of 0 (none) to 8 (severe) and Dryness on a scale of 0 (none) to 8 (severe). |
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| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Headache | Nervous system disorders | Non-systematic Assessment | One subject on the clinicamycin/BPO arm was reported to have a headache and one subject on the dapsone arm was reported to have a migrane headache. Neither of these was reported as being related to the study drug by the investigator. |
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| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| GSK Response Center | GlaxoSmithKline | 888-435-7343 |
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| ID | Term |
|---|---|
| D000152 | Acne Vulgaris |
| ID | Term |
|---|---|
| D017486 | Acneiform Eruptions |
| D012871 | Skin Diseases |
| D017437 | Skin and Connective Tissue Diseases |
| D012625 | Sebaceous Gland Diseases |
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| ID | Term |
|---|---|
| D002981 | Clindamycin |
| D001585 | Benzoyl Peroxide |
| D003622 | Dapsone |
| D005782 | Gels |
| ID | Term |
|---|---|
| D008034 | Lincomycin |
| D055231 | Lincosamides |
| D011759 | Pyrrolidines |
| D006573 | Heterocyclic Compounds, 1-Ring |
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| Dapsone gel | Drug | Twice-daily applications of dapsone gel |
|
|
| Sebum Measurements |
To sample the skin surface, the sebum collector strips are applied to the skin sites for 10 seconds. Once removed, these samples will be immediately measured for the amount of sebum on the strip using the tape analyzer. The amount of sebum production was measured as the amount of sebum collected on a tape applied to the skin for 10 seconds and then converted to 1 of 10 incremental levels. Sebum production was measured in increments of 0 (minimum value) to 10 (maximum value). The higher the number, the greater amount of sebum produced. |
| 2 weeks |
| Skin Hydration | Evaluation of Skin Hydration using electrical conductance measurements,on weekdays during 14 days of treatment. The value recorded which is expressed in units of microsiemens represents the AC conductance 2-3 seconds after placing the spring-loaded probe tip to the sample site. | 2 weeks |
| BG001 | Dapsone Gel | Twice-daily applications of dapsone gel to one-half of the face. Dapsone facial gel was applied twice daily to one side of the face of all subjects in this group in a split-face model. On weekdays during the two-week trial, the investigator scored Erythema on a scale of 0 (none) to 8 (severe) and Dryness on a scale of 0 (none) to 8 (severe). |
| BG002 | Total | Total of all reporting groups |
| Participants |
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| Sex: Female, Male | Count of Participants | Participants |
|
| Region of Enrollment | Number | participants |
|
| OG001 | Dapsone Gel | Twice-daily applications of dapsone gel to one-half of the face. Dapsone facial gel was applied twice daily to one side of the face of all subjects in this group in a split-face model. On weekdays during the two-week trial, the investigator scored Erythema on a scale of 0 (none) to 8 (severe) and Dryness on a scale of 0 (none) to 8 (severe). |
|
|
|
| Secondary | Transepidermal Water Loss (TEWL) | To assess skin moisture and hydration using transepidermal water loss (TEWL). These tables record the data obtained for each panelist at Baseline, and on Days 3, 7 and 14 or upon early termination of site(s), if applicable. Results are measured on a continuous scale. | Posted | Mean | Standard Deviation | TEWL rates (gm/m2/hr) | 2 Weeks |
|
|
|
| Primary | Skin Dryness | The amount of dryness on the left and right cheek of each panelist. The scale used to evaluate skin dryness is: Grade Description 0 None 2 Slight flaking 4 Moderate flaking/scaling 6 Marked scaling / slight fissuring 8 Severe scaling, fissuring Expert Grader assessments of dryness were taken prior to product application on Days 0, 1, 2, 3, 6, 7, 8, 9, 10, 13 and 14. | ITT | Posted | Mean | Standard Deviation | Units on a scale | Baseline, Day 1through Day 14 |
|
|
|
|
| Secondary | Sebum Measurements | To sample the skin surface, the sebum collector strips are applied to the skin sites for 10 seconds. Once removed, these samples will be immediately measured for the amount of sebum on the strip using the tape analyzer. The amount of sebum production was measured as the amount of sebum collected on a tape applied to the skin for 10 seconds and then converted to 1 of 10 incremental levels. Sebum production was measured in increments of 0 (minimum value) to 10 (maximum value). The higher the number, the greater amount of sebum produced. | ITT | Posted | Mean | Standard Deviation | units on a scale | 2 weeks |
|
|
|
|
| Secondary | Skin Hydration | Evaluation of Skin Hydration using electrical conductance measurements,on weekdays during 14 days of treatment. The value recorded which is expressed in units of microsiemens represents the AC conductance 2-3 seconds after placing the spring-loaded probe tip to the sample site. | ITT | Posted | Mean | Standard Deviation | Microsiemens | 2 weeks |
|
|
|
|
| 0 |
| 27 |
| 2 |
| 27 |
| EG001 | Dapsone Gel | Twice-daily applications of dapsone gel to one-half of the face. Dapsone facial gel was applied twice daily to one side of the face of all subjects in this group in a split-face model. On weekdays during the two-week trial, the investigator scored Erythema on a scale of 0 (none) to 8 (severe) and Dryness on a scale of 0 (none) to 8 (severe). | 0 | 25 | 2 | 25 |
|
| Infection | Infections and infestations | Non-systematic Assessment | One subject had a urinary tract infeaction in the dapsone treatment group and one subject had a vaginal yeast infection on the clindamycin/ BPO treatment group. Neither of these was reported as being related to the study drug by the investigator. |
|
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| D006571 |
| Heterocyclic Compounds |
| D006027 | Glycosides |
| D002241 | Carbohydrates |
| D001565 | Benzoates |
| D000146 | Acids, Carbocyclic |
| D002264 | Carboxylic Acids |
| D009930 | Organic Chemicals |
| D001555 | Benzene Derivatives |
| D006841 | Hydrocarbons, Aromatic |
| D006844 | Hydrocarbons, Cyclic |
| D006838 | Hydrocarbons |
| D013450 | Sulfones |
| D013457 | Sulfur Compounds |
| D003102 | Colloids |
| D045424 | Complex Mixtures |
| D004304 | Dosage Forms |
| D004364 | Pharmaceutical Preparations |
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