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Salicylic Acid Peels Combined With 4% Hydroquinone in the Treatment of Moderate to Severe Melasma in Hispanic Women

The Efficacy of Salicylic Acid Peels Combined With 4% Hydroquinone Cream Versus 4% Hydroquinone Cream Alone in the Treatment of Hispanic Women With Moderate to Severe Melasma

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00616239
Enrollment
20
Registered
2008-02-15
Start date
2008-01-31
Completion date
2018-03-31
Last updated
2020-08-10

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

Conditions

Melasma

Keywords

Melasma, Dark spots on the face

Brief summary

This study will enroll 20 adult Hispanic women. Participants will apply 4% hydroquinone cream twice daily to affected areas on the face for 14 weeks and half the face will be peeled with 20-30% salicylic acid every two weeks for a total of 4 peels. The first two peels will be 20% salicylic acid and the second two peels will be with 30% salicylic acid. The purpose of the study will be to evaluate the safety and efficacy of salicylic acid combined with 4% hydroquinone versus 4% hydroquinone alone.

Interventions

DRUG20-30% Salicylic Acid peels to the right side of the face

Two 20% salicylic acid peels two weeks apart followed by 2 30% salicylic acid peels two weeks apart to the right side of the face.

DRUG20-30% Salicylic Acid peels to the left side of the face

Two 20% salicylic acid peels two weeks apart followed by 2 30% salicylic acid peels two weeks apart to the left side of the face

Sponsors

University of Texas Southwestern Medical Center
Lead SponsorOTHER

Study design

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

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Hispanic women ages 18-65 years of age with moderate to severe melasma * English and Spanish-speaking women

Exclusion criteria

* Pregnant or breast-feeding women * Subjects who have used 4% hydroquinone within 3 months of study start * Subjects who have used chemical peels, microdermabrasion or facial laser treatments within 9 months of study start

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Showing Improvement of Melasma Based on Mexameter Readings14 weeksImprovement of melasma on the peel side using mexameter reading

Countries

United States

Participant flow

Participants by arm

ArmCount
20% to 30% Salicylic Acid Peels + 4% Hydroquinone Cream
Subjects randomized to have the right side of the face peeled with salicylic acid every 2 weeks for a total of 4 peels (first 2 at 20% and last 2 at 30%). Subjects will apply 4% hydroquinone cream to affected areas on entire face for 14 weeks.
20
Total20

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyWithdrawal by Subject2

Baseline characteristics

Characteristic20% to 30% Salicylic Acid Peels + 4% Hydroquinone Cream
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
20 Participants
Age, Continuous54 years
STANDARD_DEVIATION 6
Ethnicity (NIH/OMB)
Hispanic or Latino
20 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
20 Participants
Region of Enrollment
United States
20 participants
Sex: Female, Male
Female
20 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 20
other
Total, other adverse events
4 / 20
serious
Total, serious adverse events
0 / 20

Outcome results

Primary

Number of Participants Showing Improvement of Melasma Based on Mexameter Readings

Improvement of melasma on the peel side using mexameter reading

Time frame: 14 weeks

ArmMeasureValue (NUMBER)
20% to 30% Salicylic Acid Peels + 4% Hydroquinone CreamNumber of Participants Showing Improvement of Melasma Based on Mexameter Readings18 participants

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