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ClinicalTrials.gov public records Last synced Oct 10, 2026, 10:18 AM EDT

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Showing 145–168 of 180 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Vitamin A Palmitate Clear all
Completed Phase 2 Interventional Accepts healthy volunteers

Vitamin A Equivalence of Plant Carotenoids in Children

NCT00680212
View directory record Official record
Conditions
Vitamin A Deficiency
Interventions
dietary carotenoids, spinach, rice, and synthetic beta-carotene
Dietary Supplement
Lead sponsor
Tufts University
Other
Eligibility
6 Years to 8 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 18, 2009 · Synced Oct 10, 2026, 10:18 AM 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 3, 2020 · Synced Oct 10, 2026, 10:18 AM EDT
Completed Phase 2 Interventional Results available

Ipilimumab and All-Trans Retinoic Acid Combination Treatment of Advanced Melanoma

NCT02403778
View directory record Official record
Conditions
Melanoma
Interventions
VESANOID, Ipilimumab
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 89 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2023
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Oct 10, 2026, 10:18 AM EDT
Withdrawn Phase 2 Interventional

The Role of Antioxidant Supplementation in Keratoconus Patients

NCT02827747
View directory record Official record
Conditions
Keratoconus
Interventions
Antioxidants (Vitamins A,C,E) plus GSH, Placebo, Centrum, Dietary Sources
Other · Dietary Supplement · Combination Product
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 45 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Palm Beach Gardens, Florida
Source: ClinicalTrials.gov public record
Updated Aug 16, 2021 · Synced Oct 10, 2026, 10:18 AM EDT
Completed Early Phase 1 Interventional Results available

Vitamin A Palmitate Supplementation in Patients With Reticular Pseudodrusen (RPD) and Delayed Dark Adaptation

NCT03478878
View directory record Official record
Conditions
Reticular Pseudodrusen (RPD), Age-Related Macular Degeneration
Interventions
Vitamin A Palmitate
Drug
Lead sponsor
National Eye Institute (NEI)
NIH
Eligibility
50 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 16, 2025 · Synced Oct 10, 2026, 10:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nutritional Outcomes After Vitamin A Supplementation in Subjects With SCD

NCT03632876
View directory record Official record
Conditions
Sickle Cell Anemia in Children, Vitamin A Deficiency in Children
Interventions
retinyl palmitate
Dietary Supplement
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
9 Years and older
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 16, 2018 · Synced Oct 10, 2026, 10:18 AM 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 10, 2026, 10:18 AM EDT
Completed Phase 2 Interventional Results available

To Immunize Patients With Extensive Stage SCLC Combined With Chemo With or Without All Trans Retinoic Acid

NCT00617409
View directory record Official record
Conditions
Small Cell Lung Cancer
Interventions
Paclitaxel, Drug: Ad.p53-DC vaccines, All -trans Retinoic Acid (ATRA)
Drug · Biological
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2019
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Nov 8, 2019 · Synced Oct 10, 2026, 10:18 AM 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 10, 2026, 10:18 AM EDT
Completed Phase 3 Interventional Results available

Clinical Trial of Lutein for Patients With Retinitis Pigmentosa Receiving Vitamin A

NCT00346333
View directory record Official record
Conditions
Retinitis Pigmentosa
Interventions
Lutein, Cornstarch control
Drug · Dietary Supplement
Lead sponsor
National Eye Institute (NEI)
NIH
Eligibility
18 Years to 60 Years
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 31, 2014 · Synced Oct 10, 2026, 10:18 AM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Infant Mortality Reduction by the Mass Administration of Azithromycin

NCT04716712
View directory record Official record
Conditions
Child Mortality
Interventions
Azithromycin, Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
1 Month to 11 Months
Enrollment
694,400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 13, 2025 · Synced Oct 10, 2026, 10:18 AM EDT
Completed Phase 1 Interventional Results available

Induction Therapy Including 131 I-MIBG and Chemotherapy in Treating Patients With Newly Diagnosed High-Risk Neuroblastoma Undergoing Stem Cell Transplant, Radiation Therapy, and Maintenance Therapy With Isotretinoin

NCT01175356
View directory record Official record
Conditions
Ganglioneuroblastoma, Localized Resectable Neuroblastoma, Localized Unresectable Neuroblastoma, Regional Neuroblastoma, Stage 4 Neuroblastoma, Stage 4S Neuroblastoma
Interventions
3-Dimensional Conformal Radiation Therapy, Autologous Hematopoietic Stem Cell Transplantation, Busulfan, Cisplatin, Cyclophosphamide, Doxorubicin Hydrochloride, Etoposide Phosphate, External Beam Radiation Therapy, In Vitro-Treated Peripheral Blood Stem Cell Transplantation, Intensity-Modulated Radiation Therapy, Iobenguane I-131, Isotretinoin, Laboratory Biomarker Analysis, Melphalan, Pharmacological Study, Questionnaire Administration, Therapeutic Conventional Surgery, Topotecan Hydrochloride, Vincristine Sulfate
Radiation · Procedure · Drug + 1 more
Lead sponsor
Children's Oncology Group
Network
Eligibility
1 Year to 30 Years
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2025
U.S. locations
25
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 20 more
Source: ClinicalTrials.gov public record
Updated Jan 23, 2026 · Synced Oct 10, 2026, 10:18 AM EDT
Completed Phase 3 Interventional Results available

Combination Chemotherapy in Treating Young Patients With Newly Diagnosed Acute Promyelocytic Leukemia

NCT00866918
View directory record Official record
Conditions
Childhood Acute Promyelocytic Leukemia With PML-RARA, Myeloid Neoplasm
Interventions
Arsenic Trioxide, Cytarabine, Diagnostic Laboratory Biomarker Analysis, Idarubicin, Mercaptopurine, Methotrexate, Mitoxantrone Hydrochloride, Tretinoin
Drug · Other
Lead sponsor
Children's Oncology Group
Network
Eligibility
2 Years to 21 Years
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2022
U.S. locations
112
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 87 more
Source: ClinicalTrials.gov public record
Updated Oct 25, 2022 · Synced Oct 10, 2026, 10:18 AM EDT
Completed Phase 2 Interventional Results available

Vaccine Therapy, Tretinoin, and Cyclophosphamide in Treating Patients With Metastatic Lung Cancer

NCT00601796
View directory record Official record
Conditions
Lung Cancer
Interventions
Vaccine Treatment, Cyclophosphamide, All-trans retinoic acid (ATRA)
Biological · Drug
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated May 24, 2013 · Synced Oct 10, 2026, 10:18 AM EDT
Terminated Phase 2 Interventional Results available

Tretinoin and Arsenic Trioxide With or Without Idarubicin in Treating Patients With Acute Promyelocytic Leukemia

NCT00528450
View directory record Official record
Conditions
Leukemia
Interventions
arsenic trioxide, idarubicin, tretinoin
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years to 120 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 29, 2016 · Synced Oct 10, 2026, 10:18 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Vitamin A, Its Receptors and Asthma

NCT00628329
View directory record Official record
Conditions
Asthma
Interventions
Not listed
Lead sponsor
University of Kansas
Other
Eligibility
18 Years to 64 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated May 7, 2012 · Synced Oct 10, 2026, 10:18 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Pembrolizumab and All-Trans Retinoic Acid Combination Treatment of Advanced Melanoma

NCT03200847
View directory record Official record
Conditions
Stage IV Melanoma, Stage III Melanoma, Advanced Melanoma
Interventions
Pembrolizumab with All-Trans Retinoic Acid
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 100 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
2
States / cities
Aurora, Colorado • Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 1, 2024 · Synced Oct 10, 2026, 10:18 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Small Daily Doses of B-carotene on Breast Milk Retinol

NCT01803659
View directory record Official record
Conditions
Vitamin A Status
Interventions
b-carotene, retinyl palmitate, placebo
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Jun 11, 2015 · Synced Oct 10, 2026, 10:18 AM EDT
Recruiting Phase 2 Interventional

Tretinoin and Arsenic Trioxide With or Without Gemtuzumab Ozogamicin in Treating Patients With Previously Untreated Acute Promyelocytic Leukemia

NCT01409161
View directory record Official record
Conditions
Acute Promyelocytic Leukemia With PML-RARA
Interventions
Arsenic Trioxide, Gemtuzumab Ozogamicin, Laboratory Biomarker Analysis, Tretinoin
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
10 Years and older
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2027
U.S. locations
5
States / cities
Houston, Texas • Nassau Bay, Texas • Sugar Land, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated May 20, 2026 · Synced Oct 10, 2026, 10:18 AM EDT
Completed Phase 2 Interventional

A Phase II Trial of All-Trans-Retinoic Acid in Combination With Interferon-Alpha 2a in Children With Recurrent Neuroblastoma or Wilms' Tumor

NCT00001509
View directory record Official record
Conditions
Nephroblastoma, Neuroblastoma
Interventions
IFN-alpha with retinoic acid
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Not listed
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 10, 2026, 10:18 AM EDT
Completed Phase 1 Interventional

Lithium Carbonate and Tretinoin in Treating Patients With Relapsed or Refractory Acute Myeloid Leukemia

NCT01820624
View directory record Official record
Conditions
Adult Acute Megakaryoblastic Leukemia (M7), Adult Acute Monoblastic Leukemia (M5a), Adult Acute Monocytic Leukemia (M5b), Adult Acute Myeloblastic Leukemia With Maturation (M2), Adult Acute Myeloblastic Leukemia Without Maturation (M1), Adult Acute Myeloid Leukemia With 11q23 (MLL) Abnormalities, Adult Acute Myeloid Leukemia With Del(5q), Adult Acute Myeloid Leukemia With Inv(16)(p13;q22), Adult Acute Myeloid Leukemia With t(16;16)(p13;q22), Adult Acute Myeloid Leukemia With t(8;21)(q22;q22), Adult Acute Myelomonocytic Leukemia (M4), Adult Erythroleukemia (M6a), Adult Pure Erythroid Leukemia (M6b), Recurrent Adult Acute Myeloid Leukemia
Interventions
tretinoin, lithium carbonate, laboratory biomarker analysis
Drug · Other
Lead sponsor
Paolo Caimi, MD
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 27, 2017 · Synced Oct 10, 2026, 10:18 AM EDT
Completed Phase 1 Interventional

A Phase I Trial of Tamoxifen and 9-Cis-Retinoic Acid in Breast Cancer Patients

NCT00001504
View directory record Official record
Conditions
Breast Cancer, Breast Neoplasm
Interventions
9-cis-Retinoic Acid
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Not listed
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 10, 2026, 10:18 AM 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 30, 2011 · Synced Oct 10, 2026, 10:18 AM EDT
Completed Phase 2 Interventional

A Study of All-Trans Retinoic Acid (ATRA) and Bryostatin in Patients With Acute Myeloid Leukemia (AML) and Myelodysplastic Syndrome (MDS)

NCT00136461
View directory record Official record
Conditions
Acute Myelogenous Leukemia, Myelodysplastic Syndrome
Interventions
All-trans retinoic acid, Bryostatin 1
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2000
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 10, 2011 · Synced Oct 10, 2026, 10:18 AM EDT