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ClinicalTrials.gov public records Last synced Oct 1, 2026, 4:41 PM EDT

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Showing 49–72 of 180 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Vitamin A palmitate 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 31, 2011 · Synced Oct 1, 2026, 4:41 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 27, 2014 · Synced Oct 1, 2026, 4:41 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

A Study Comparing Tretinoin Cream 0.025% and RETIN-A® Cream 0.025% in the Treatment of Acne Vulgaris

NCT04724473
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Tretinoin Cream 0.025%
Drug
Lead sponsor
Sun Pharmaceutical Industries, Inc.
Industry
Eligibility
12 Years to 40 Years
Enrollment
1,030 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 1, 2021 · Synced Oct 1, 2026, 4:41 PM EDT
Completed Phase 3 Interventional

Trial of Vitamins in HIV Progression and Transmission

NCT00197743
View directory record Official record
Conditions
HIV Infections, Disease Transmission, Vertical
Interventions
Vitamin A + Beta Carotene, Multivitamins, Placebo
Dietary Supplement · Other
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
18 Years and older · Female only
Enrollment
1,085 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2003
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 11, 2010 · Synced Oct 1, 2026, 4:41 PM EDT
Recruiting Phase 2 Interventional

Study of All-Trans Retinoic Acid (ATRA) and Cemiplimab in Patients With Advanced Leiomyosarcoma

NCT06528769
View directory record Official record
Conditions
Leiomyosarcoma, Sarcoma
Interventions
all-trans retinoic acid, Cemiplimab, Computed Tomography, Magnetic resonance imaging, Biospecimen Collection
Drug · Procedure
Lead sponsor
Gabriel Tinoco
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 1, 2026 · Synced Oct 1, 2026, 4:41 PM EDT
Completed Phase 2 Interventional

Reducing the Effects of Aging on Cognition With Therapeutic Intervention of an Oral Nutrient (REACTION): A Pilot Trial

NCT04147624
View directory record Official record
Conditions
Cognitive Decline
Interventions
Souvenaid, Placebo
Drug · Other
Lead sponsor
University of Miami
Other
Eligibility
55 Years to 89 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 25, 2023 · Synced Oct 1, 2026, 4:41 PM EDT
Withdrawn Phase 2 Interventional

Retinoids in ANCA Small Vessel Vasculitis: Silencing Autoantigens

NCT01275274
View directory record Official record
Conditions
Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis
Interventions
Retinoic acid, Standard of care
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 23, 2017 · Synced Oct 1, 2026, 4:41 PM EDT
Recruiting Phase 2 Interventional

Vitamin A Supplementation in Allogeneic Stem Cell Transplantation.

NCT06450925
View directory record Official record
Conditions
Graft Vs Host Disease, Vitamin A Deficiency, Vitamin D Deficiency
Interventions
Vitamin A, Placebo
Drug · Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
18 Years and older
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
3
States / cities
Tampa, Florida • Buffalo, New York • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Oct 1, 2026, 4:41 PM EDT
Not yet recruiting Not applicable Interventional

Vitamin A Supplementation and Breast Milk Vitamin A Levels in Mothers of Preterm Infants

NCT07736768
View directory record Official record
Conditions
Premature, Preterm Infant Health, Vitamin A Deficiency, Human Milk, Breastfeeding
Interventions
Oral multivitamin containing vitamin A
Dietary Supplement
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
18 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Oct 1, 2026, 4:41 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 6, 2024 · Synced Oct 1, 2026, 4:41 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

To Evaluate the Therapeutic Equivalence and Safety of TRETINOIN CREAM, 0.1% and RLD in the Treatment of Acne Vulgaris

NCT03427554
View directory record Official record
Conditions
Acne Vulgaris
Interventions
Tretinoin cream 0.1%, RETIN-A® Cream, Vehicle of the test product
Drug
Lead sponsor
Sun Pharmaceutical Industries, Inc.
Industry
Eligibility
12 Years to 40 Years
Enrollment
455 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated May 18, 2018 · Synced Oct 1, 2026, 4:41 PM EDT
Completed Phase 3 Interventional Results available

Chemotherapy and Radiation Therapy in Treating Young Patients With Newly Diagnosed, Previously Untreated, High-Risk Medulloblastoma/PNET

NCT00392327
View directory record Official record
Conditions
Anaplastic Medulloblastoma, Medulloblastoma
Interventions
Biospecimen Collection, Carboplatin, Cisplatin, Cyclophosphamide, Filgrastim, Isotretinoin, Lumbar Puncture, Magnetic Resonance Imaging, Quality-of-Life Assessment, Radiation Therapy, Vincristine Sulfate
Procedure · Drug · Biological + 2 more
Lead sponsor
Children's Oncology Group
Network
Eligibility
3 Years to 22 Years
Enrollment
379 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2026
U.S. locations
170
States / cities
Birmingham, Alabama • Anchorage, Alaska • Mesa, Arizona + 126 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Oct 1, 2026, 4:41 PM EDT
Completed Phase 3 Interventional Results available

Isotretinoin With or Without Dinutuximab, Aldesleukin, and Sargramostim Following Stem Cell Transplant in Treating Patients With Neuroblastoma

NCT00026312
View directory record Official record
Conditions
Localized Resectable Neuroblastoma, Localized Unresectable Neuroblastoma, Recurrent Neuroblastoma, Regional Neuroblastoma, Stage 4 Neuroblastoma, Stage 4S Neuroblastoma
Interventions
Aldesleukin, Dinutuximab, Isotretinoin, Laboratory Biomarker Analysis, Pharmacological Study, Quality-of-Life Assessment, Sargramostim
Biological · Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Up to 30 Years
Enrollment
1,449 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2025
U.S. locations
172
States / cities
Birmingham, Alabama • Anchorage, Alaska • Phoenix, Arizona + 129 more
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced Oct 1, 2026, 4:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Vitamin A Absorption From Cassava in Women

NCT01381276
View directory record Official record
Conditions
Vitamin A Deficiency
Interventions
Beta-Carotene bio-fortified cassava porridge without oil, Beta-Carotene bio-fortified cassava porridge with oil, White cassava porridge with retinyl palmitate reference dose
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 45 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Dec 12, 2011 · Synced Oct 1, 2026, 4:41 PM EDT
Completed Phase 1Phase 2 Interventional

Combination Therapy in Amyotrophic Lateral Sclerosis (ALS)

NCT00919555
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis
Interventions
Pioglitazone and Tretinoin, Tretinoin and Pioglitazone HCL, Placebo
Drug
Lead sponsor
Phoenix Neurological Associates, LTD
Other
Eligibility
18 Years to 85 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 30, 2012 · Synced Oct 1, 2026, 4:41 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Lipid Profile of the Skin Surface in Acne

NCT02180425
View directory record Official record
Conditions
Acne
Interventions
Tretinoin or Adapalene, Isotretinoin
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
12 Years to 30 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
2
States / cities
Davis, California • Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 30, 2017 · Synced Oct 1, 2026, 4:41 PM EDT
Completed Phase 1 Interventional

Phenylbutyrate and Tretinoin in Treating Patients With Hematologic Cancer

NCT00006239
View directory record Official record
Conditions
Leukemia, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Diseases
Interventions
sodium phenylbutyrate, tretinoin
Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years to 120 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2005
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 29, 2017 · Synced Oct 1, 2026, 4:41 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Investigating the Wrinkle Reduction Potential of a Novel Compounded Skin Care Cream

NCT03878381
View directory record Official record
Conditions
Skin Care
Interventions
Skin Care Cream, Placebo
Combination Product · Drug
Lead sponsor
Wayne State University
Other
Eligibility
20 Years to 60 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Dearborn, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 1, 2022 · Synced Oct 1, 2026, 4:41 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Vitamin A Liver Reserves and Serum Markers of Vitamin A in US Adults at Time of Death

NCT03305042
View directory record Official record
Conditions
Vitamin A Deficiency, Vitamin A Toxicity
Interventions
Not listed
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
21 Years and older
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 17, 2017 · Synced Oct 1, 2026, 4:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Influenza Virus Vaccine Plus Vitamin A and D Supplements for Prevention of Respiratory Virus Infections in Children

NCT02649192
View directory record Official record
Conditions
Healthy Participants
Interventions
Influenza virus vaccine, Vitamins A and D, Placebo
Biological · Dietary Supplement · Other
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
2 Years to 8 Years
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 29, 2019 · Synced Oct 1, 2026, 4:41 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Comparison of the Cosmetic Effects of Bakuchiol and Retinol

NCT03112863
View directory record Official record
Conditions
Wrinkle, Photoaging
Interventions
Bakuchiol, Retinol
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
30 Years to 55 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Nov 2, 2021 · Synced Oct 1, 2026, 4:41 PM EDT
Completed Phase 2 Interventional Results available

A Pilot Study of 5-AZA and ATRA for Prostate Cancer With PSA-only Recurrence After Local Treatment

NCT03572387
View directory record Official record
Conditions
Prostatic Neoplasms, Prostate Neoplasms, Prostate Cancer
Interventions
5-Azacitidine, all trans retinoic acid, Lupron
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older · Male only
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 30, 2024 · Synced Oct 1, 2026, 4:41 PM EDT
Recruiting Phase 3 Interventional

Testing the Addition of 131I-MIBG or Lorlatinib to Intensive Therapy in People With High-Risk Neuroblastoma (NBL)

NCT03126916
View directory record Official record
Conditions
Ganglioneuroblastoma, Ganglioneuroblastoma, Nodular, Neuroblastoma
Interventions
Autologous Hematopoietic Stem Cell Transplantation, Biospecimen Collection, Bone Marrow Aspiration and Biopsy, Busulfan, Carboplatin, Cisplatin, Computed Tomography, Cyclophosphamide, Dexrazoxane Hydrochloride, Dinutuximab, Doxorubicin Hydrochloride, Echocardiography Test, Etoposide Phosphate, External Beam Radiation Therapy, Iobenguane I-123, Iobenguane I-131, Isotretinoin, Lorlatinib, Magnetic Resonance Imaging, Melphalan Hydrochloride, Multigated Acquisition Scan, Positron Emission Tomography, Sargramostim, Therapeutic Conventional Surgery, Thiotepa, Topotecan Hydrochloride, Vincristine Sulfate
Procedure · Drug · Biological + 1 more
Lead sponsor
Children's Oncology Group
Network
Eligibility
365 Days to 30 Years
Enrollment
750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2030
U.S. locations
152
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 121 more
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Oct 1, 2026, 4:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Beta-carotene Absorption and Bioconversion to Vitamin A From Biofortified Cassava Gari

NCT02210507
View directory record Official record
Conditions
Vitamin A Deficiency
Interventions
Biofortified cassava gari, White cassava gari, White cassava gari + red palm oil
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 45 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Jan 12, 2015 · Synced Oct 1, 2026, 4:41 PM EDT