Determination of Sun Protection in Sunscreen Formulas (Study SR09-15)(P08236)(COMPLETED) (PFA and SPF)
Determination of Sun Protection Factors (PFA and SPF) in Sunscreen Formulas Containing Combinations of Zinc Oxide and Avobenzone
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 3
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- 18 to 70 years of age
- Have Fitzpatrick skin types I, II, or III
- In good general health based on a medical history review
- Be free of any acute or chronic illness/disease that might interfere with or increase risk of study participation
- Be able to cooperate with the investigator and research staff
- Be willing to have the test materials applied according to the protocol
- Be capable of understanding and provide written informed consent
Exclusion Criteria:
- Subjects with a history of adverse effects upon sun exposure
- Subjects currently taking any medication that may alter the sunlight response or is a known photosensitizer
- Subjects with a history of any form of cancer, lupus, psoriasis, rosacea, porphyria cutanea tarda, connective tissue disease, diabetes or any disease that would increase the risks associated with study participation
- Subjects with an abnormal sensitivity to any sunscreen agent
- Females who indicate that they are pregnant or nursing an infant during the period of the study
- Subjects with excessive hair, blemishes, nevi, warts, moles, scars, sunburn, suntan or uneven pigmentation in the test areas
- Subjects who have been administered an investigations drug or have participated in another SPF or PFA study within 30 days prior to this study
- Subjects who are allergic to latex or latex products
- Subjects who have any conditions that would make study participation inappropriate as determined by the investigator
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: SPF Testing
Following Food and Drug Administration (FDA) guidelines for SPF testing, exposure control and product-protected site erythema responses are scored after 16 to 24 hours post-exposure to full spectrum light (Ultraviolet B radiation [UVB] and UVA).
|
Sunscreen formula containing 15% Zinc Oxide, 3% Avobenzone, and 1% Ensulizole
Sunscreen formula containing 15% Zinc Oxide and 3% Avobenzone
8% Homosalate Standard SPF 4 Sunscreen
|
|
Experimental: UVA Protection Testing
Determination of Ultraviolet A Protection Factor (PFA).
Following FDA guidelines, test sites exposed to UVA are scored for pigmentation responses 2 to 4 hours post-exposure.
|
Sunscreen formula containing 15% Zinc Oxide, 3% Avobenzone, and 1% Ensulizole
Sunscreen formula containing 15% Zinc Oxide and 3% Avobenzone
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Determination of Sunscreen Protection Factor (SPF)
Time Frame: 16 to 24 hours post-exposure
|
Test material (V53-028 and V53-030) and control test material (8% Homoslate SPF 4) were applied to test area.
Following exposure to a series of Ultraviolet light exposures, SPF scores were recorded at 16 to 24 hours post-exposure, to determine the Minimal Erythema Dose (MED) of protected and unprotected skin.
SPF was calculated as the MED of protected skin divided by the MED of unprotected skin.
Expected SPF 15 is a score on a scale; range 11.34 (worst) to 19.83 (best).
|
16 to 24 hours post-exposure
|
|
Determination of Ultraviolet A Protection Factor (PFA)
Time Frame: 2 to 4 hours post-exposure
|
Test materials (V53-028 and V53-030) were applied to test area.
Following a series of Ultraviolet radiation A (UVA) exposures, scores were recorded at 2 and 4 hours post-exposure, to determine the Minimal Persistent Pigment-Darkening Dose (MPPD) of protected and unprotected skin.
PFA was calculated as the MPPD of protected skin divided by the MPPD of unprotected skin.
Expected PFA is a score on a scale; range 6.40 (worst) to 15.62 (best).
|
2 to 4 hours post-exposure
|
Collaborators and Investigators
Sponsor
Sponsor
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- 18119 (Other Identifier: City of Hope Comprehensive Cancer Center)
- SR09-15
- P08236 (Other Identifier: Merck)
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