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Showing 1–24 of 28 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Tretinoin gel Clear all
Completed Phase 4 Interventional Results available

Dapsone Gel 5% and Tretinoin Gel 0.025% Versus Tretinoin Gel 0.025% Monotherapy for Facial Acne Vulgaris

NCT00835198
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Dapsone; Tretinoin, Tretinoin
Drug
Lead sponsor
Allergan
Industry
Eligibility
12 Years and older
Enrollment
163 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Strongsville, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 30, 2011 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study Comparing Tretinoin Gel Microsphere, 0.04% and RETIN-A MICRO ® Gel Microsphere, 0.04% in the Treatment of Acne Vulgaris

NCT07469228
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Tretinoin Gel Microsphere, 0.04%, RETIN-A MICRO® (Tretinoin) Gel Microsphere, 0.04%, Placebo Control
Drug
Lead sponsor
Sun Pharmaceutical Industries, Inc.
Industry
Eligibility
12 Years to 40 Years
Enrollment
1,043 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Hawthorne, New York
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Profiling the Skin Microbiome in Response to Altreno in Acne Patients

NCT04548349
View directory record Official record
Conditions
Acne, Healthy
Interventions
Altreno, Benzoyl peroxide
Drug
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 40 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 5, 2024 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Clinical Evaluation of the Photoallergy Potential of Atralin Gel

NCT00603772
View directory record Official record
Conditions
Healthy
Interventions
Atralin (tretinoin) gel, 0.05%
Drug
Lead sponsor
Coria Laboratories, Ltd.
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated May 5, 2008 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Determine the Phototoxity of Atralin (Tretinoin) Gel, 0.05%

NCT00604032
View directory record Official record
Conditions
Healthy
Interventions
Atralin (tretinoin) Gel, 0.05%
Drug
Lead sponsor
Coria Laboratories, Ltd.
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 27, 2008 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 4 Interventional Results available

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

NCT01047189
View directory record Official record
Conditions
Acne Vulgaris
Interventions
clindamycin phosphate 1.2% and tretinoin 0.025%, clindamycin 1% gel, tretinoin 0.025% cream
Drug
Lead sponsor
Wake Forest University
Other
Eligibility
12 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 9, 2018 · Synced Sep 26, 2026, 11:53 PM EDT
Terminated Phase 2 Interventional

Isotretinoin, Interferon Alfa-2b, Docetaxel, and Estramustine in Treating Patients With Metastatic Prostate Cancer That Did Not Respond to Hormone Therapy

NCT00176527
View directory record Official record
Conditions
Prostate Cancer
Interventions
recombinant interferon alfa-2b, docetaxel, estramustine phosphate sodium, isotretinoin, polyacrylamide gel electrophoresis, protein expression analysis, immunohistochemistry staining method
Biological · Drug · Genetic + 1 more
Lead sponsor
University of Medicine and Dentistry of New Jersey
Other
Eligibility
18 Years and older · Male only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2007
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 10, 2009 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

A Study Comparing Tretinoin Gel Microsphere, 0.1% and RETIN-A MICRO ® Gel Microsphere, 0.1% in the Treatment of Acne Vulgaris

NCT04883736
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Tretinoin Gel Microsphere, 0.1%, RETIN-A MICRO® (Tretinoin) Gel Microsphere, 0.1%, Placebo Control
Drug
Lead sponsor
Sun Pharmaceutical Industries, Inc.
Industry
Eligibility
12 Years to 40 Years
Enrollment
973 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated May 11, 2021 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Bioequivalence Study of Generic Tretinoin 0.1% Microsphere Gel, 0.1% Retin-A Micro® and Placebo

NCT01135069
View directory record Official record
Conditions
Acne
Interventions
Tretinoin microsphere 0.1%, Brand Retin-A Micro tretinoin microsphere gel 0.1%, placebo microsphere gel
Drug
Lead sponsor
Spear Pharmaceuticals
Industry
Eligibility
12 Years to 40 Years
Enrollment
480 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Land O' Lakes, Florida
Source: ClinicalTrials.gov public record
Updated Oct 26, 2014 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 4 Interventional Results available

Split-face Tolerability Comparison Between Adapalene-Benzoyl Peroxide Gel Versus Tretinoin Gel

NCT01522456
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Epiduo Gel, Retin-A Micro Microsphere 0.1%
Drug
Lead sponsor
Galderma R&D
Industry
Eligibility
18 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jul 31, 2022 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Evaluation of Irritation by Two Facial Gels Applied to Opposite Sides of the Face

NCT00919191
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Tretinoin gel, Adapalene and Benzoyl peroxide
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Broomall, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 14, 2012 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Evaluation of Irritation That Potentially Could be Caused by Two Facial Gels Applied to Opposite Sides of the Face

NCT00952523
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Tretinoin Facial Gel, Adapalene/Benzoyl Peroxide Facial Gel
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years to 45 Years
Enrollment
162 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Broomall, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 14, 2012 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Bioequivalence Study of Generic Tretinoin 0.04% Microsphere Gel, 0.04% Retin-A Micro® and Placebo

NCT01243450
View directory record Official record
Conditions
Acne
Interventions
Tretinoin, placebo
Drug
Lead sponsor
Spear Pharmaceuticals
Industry
Eligibility
12 Years to 40 Years
Enrollment
958 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Mountain Lakes, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 2, 2020 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 3 Interventional Results available

A Clinical Study to Evaluate the Safety and Effectiveness of an Investigational Product Called CT Gel

NCT00689117
View directory record Official record
Conditions
Acne Vulgaris, Acne
Interventions
CT Gel, Clindamycin Gel (clindamycin ), Tretinoin Gel (tretinoin), Vehicle Gel
Drug
Lead sponsor
Stiefel, a GSK Company
Industry
Eligibility
12 Years and older
Enrollment
1,649 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
27
States / cities
Birmingham, Alabama • Mobile, Alabama • Hot Springs, Arkansas + 24 more
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 3 Interventional Results available

Adapalene Gel 0.3% Versus Tretinoin 0.05% Emollient Cream for Treatment of Photodamage

NCT00647556
View directory record Official record
Conditions
Photoaging
Interventions
adapalene gel, 0.3%, tretinoin 0.05% emollient cream
Drug
Lead sponsor
Galderma R&D
Industry
Eligibility
40 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 31, 2022 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 4 Interventional Results available

A Study of Different Use Regimens Using Two Acne Treatments

NCT00907257
View directory record Official record
Conditions
Acne Vulgaris
Interventions
benzoyl peroxide wash, Tretinoin gel
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
12 Years and older
Enrollment
247 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
12
States / cities
Boca Raton, Florida • Miami, Florida • Snellville, Georgia + 9 more
Source: ClinicalTrials.gov public record
Updated Feb 14, 2012 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Combination Treatment for Moderate to Severe Acne

NCT01206348
View directory record Official record
Conditions
Acne
Interventions
Minocycline, Clindamycin, Tretinoin, Benzoyl Peroxide
Drug
Lead sponsor
Medicis Global Service Corporation
Industry
Eligibility
12 Years to 30 Years
Enrollment
97 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
10
States / cities
Birmingham, Alabama • Santa Monica, California • Hockessin, Delaware + 7 more
Source: ClinicalTrials.gov public record
Updated Nov 29, 2011 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 4 Interventional Results available

Comparative Antimicrobial Efficacy of Two Topical Acne Therapies for the Treatment of Facial Acne

NCT00841776
View directory record Official record
Conditions
Acne
Interventions
Duac, Ziana gel
Drug
Lead sponsor
Stiefel, a GSK Company
Industry
Eligibility
12 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
2
States / cities
Louisville, Kentucky • Mason, Ohio
Source: ClinicalTrials.gov public record
Updated May 24, 2017 · Synced Sep 26, 2026, 11:53 PM EDT
Not listed Phase 4 Interventional

Efficacy & Safety of Clindamycin and Tretinoin in Acne

NCT01111994
View directory record Official record
Conditions
Acne
Interventions
Clindamycin Phosphate 1.2% and Tretinoin 0.025% Gel
Drug
Lead sponsor
Callender Center for Clinical Research
Other
Eligibility
12 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
2
States / cities
Mitchellville, Maryland • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 19, 2010 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 3 Interventional Results available

A Clinical Study to Evaluate the Tolerability of a Topical Antibiotic and Retinoid Used in a Combined Regimen With a BPO Wash

NCT00891982
View directory record Official record
Conditions
Acne Vulgaris
Interventions
CTGel/ BPO Wash, Soap Free Cleanser and CTGel
Drug
Lead sponsor
Stiefel, a GSK Company
Industry
Eligibility
12 Years to 45 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
5
States / cities
Coral Gables, Florida • Warren, Michigan • High Point, North Carolina + 2 more
Source: ClinicalTrials.gov public record
Updated May 23, 2017 · Synced Sep 26, 2026, 11:53 PM EDT
Not listed Phase 4 Interventional

A Study Comparing Combination Clindamycin Phosphate/Tretinoin Gel Alone Versus With Benzoyl Peroxide Foaming Cloths for Facial Acne

NCT01422785
View directory record Official record
Conditions
Acne Vulgaris
Interventions
clindamycin phosphate 1.2%/tretinoin 0.025% gel alone, clindamycin phosphate 1.2%/tretinoin 0.025% gel plus benzoyl peroxide 6% foaming cloths
Drug
Lead sponsor
Zeichner, Joshua, M.D.
Individual
Eligibility
12 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 23, 2011 · Synced Sep 26, 2026, 11:53 PM EDT
Not listed Phase 4 Interventional

Safety and Tolerability of Acanya Gel in Combination With Atralin Gel for Acne Vulgaris

NCT01448733
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Benzoyl peroxide 2.5%/clindamycin phosphate 1.2% in the morning with with tretinoin 0.05% gel in the evening
Drug
Lead sponsor
Zeichner, Joshua, M.D.
Individual
Eligibility
12 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 6, 2011 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Safety and Efficacy Study of Clindamycin Phosphate 1.2% and Tretinoin 0.025% Gel to Treat Rosacea

NCT00823901
View directory record Official record
Conditions
Rosacea
Interventions
Clindamycin Phosphate 1.2% And Tretinoin 0.025% Gel, Placebo gel
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
2
States / cities
Stanford, California • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 24, 2012 · Synced Sep 26, 2026, 11:53 PM EDT
Completed Phase 2 Interventional

A Study to Determine the Safety and Efficacy of Atralin (Tretinoin 0.05%) Gel for the Treatment of Rosacea

NCT00621218
View directory record Official record
Conditions
Rosacea
Interventions
tretinoin gel 0.05%, vehicle
Drug
Lead sponsor
Coria Laboratories, Ltd.
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
1
States / cities
Conshohocken, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 17, 2008 · Synced Sep 26, 2026, 11:53 PM EDT