Search clinical trials for: Vitamin A

Total 23232 results

National Eye Institute (NEI)

Completed

Randomized Trial of Vitamin A and Vitamin E Supplementation for Retinitis Pigmentosa

Retinitis Pigmentosa
Second Affiliated Hospital, School of Medicine,...

Unknown

The Correlation Between Vitamin A / E Levels and Preeclampsia

Vitamin A Deficiency | Preeclampsia | Vitamin E Deficiency

China
Johns Hopkins Bloomberg School of Public Health
United States Agency for International Development (USAID); Bill and Melinda... and other collaborators

Completed

Impact of Maternal Vitamin A or Beta-Carotene Supplementation on Maternal and Infant Mortality in Bangladesh

Infant Mortality | Vitamin A Deficiency | Maternal Mortality

United States, Bangladesh
Stanford University

Completed

Retinol on Human Skin Aging in East Asian Descent

Intrinsic Aging of Skin

United States
Cairo University

Not yet recruiting

Evaluation of Modified Minimally Invasive Surgical Technique and Platelet Rich Fibrin With or Without Vitamin Pool A and C for Management of Periodontal Intrabony Defects

Intrabony Periodontal Defect

Egypt
Farmoquimica S.A.
Kosmoscience Ciência e Tecnologia Cosmética Ltda

Completed

Evaluation of the Efficacy of a New Supplement for Hair and Nails - in Vitro, Clinical, Subjective and Instrumental Study

Nails, Ingrown | Hair Loss

Brazil
Cosmetique Active International
Innovaderm Research Inc.

Completed

Comparison of Redermic, Rejuva-A and Combination of Both Redermic and Rejuva-A in Subjects With Signs of Aging

Skin Aging

Canada
Colorado State University
University of the Sciences, Techniques and Technologies of Bamako

Completed

Pilot Feasibility of Rice Bran Supplementation in Children

Dietary Rice Bran Supplementation

United States, Mali
Pamlab, L.L.C.
HealthCore, Inc.

Completed

Administrative Claims Analysis of Metanx® in Diabetic Peripheral Neuropathy

Diabetic Peripheral Neuropathy (DPN)

United States
Nemours Children's Clinic
American Lung Association

Completed

Antioxidant Therapy in Lean and Obese Asthmatics (ALOA)

Asthma

United States
Ivan FN Hung MD
Pamela Youde Nethersole Eastern Hospital

Recruiting

Olfactory and Neurosensory Rehabilitation in COVID-19-related Olfactory Dysfunction

Coronavirus Disease 2019

Hong Kong
Tehran University of Medical Sciences

Unknown

Impact of Vitamin A on RAR Gene Expression in Multiple Sclerosis (RAR)

Relapsing Remitting Multiple Sclerosis

Iran, Islamic Republic of
Alkeus Pharmaceuticals, Inc.

Enrolling by invitation

Open-Label Extension: Tolerability and Effects of ALK-001 on Stargardt Disease (TEASE)

Stargardt Disease | Stargardt Macular Degeneration | Stargardt Macular Dystrophy | Autosomal Recessive Stargardt Disease 1 (ABCA4-related)

United States
Emory University

Completed

Improving Infant Nutrition in Southern Ethiopia

Nutrition Disorders

United States, Ethiopia
Wageningen University
University of California, Davis; Penn State University; University of Ibadan; Newcastle... and other collaborators

Completed

Assessing Model Parameters for Applying the Retinol Isotope Dilution (RID) Method (SUPERKID)

Inflammation | Malaria | Vitamin A Deficiency

Nigeria
Jeanne Drisko, MD, CNS, FACN
University of Kansas Medical Center; Cancer Treatment Research Foundation

Completed

Treatment of Newly Diagnosed Ovarian Cancer With Antioxidants

Ovarian Cancer

United States
Indonesia University

Completed

Effect of Intravenous Vitamin C on SOFA Score Among Septic Patients

Sepsis

Indonesia
Instituto Nacional de Enfermedades Respiratorias

Unknown

Effect of Vitamin D as Adjunctive Therapy in Patients With Pulmonary Evolution Tuberculosis (VitaminD)

Pulmonary Tuberculosis

Mexico
CES University

Unknown

Effect of Home-fortification With Sprinkles in Hematologic and Nutritional Status in Preschool Children in Medellín

Malnutrition

Colombia
Alkeus Pharmaceuticals, Inc.

Recruiting

Phase 2 Tolerability and Effects of ALK-001 on Stargardt Disease (TEASE)

Stargardt Disease | Stargardt Macular Degeneration | Stargardt Macular Dystrophy | Autosomal Recessive Stargardt Disease 1 (ABCA4-related)

United States
Children's Hospital Medical Center, Cincinnati

Completed

A Randomized Trial of Vitamin D Supplementation With or Without Vitamin A in Stem Cell Transplantation

Hematopoietic Stem Cell Transplant

United States
Institute of Child Health

Completed

Vitamins and Minerals for Children With Downs Syndrome

Trisiomy 21 (Down Syndrome)

United Kingdom
Chemist Confessions, Inc.
Citruslabs

Completed

Study to Identify if Chemist Confessions Retinol Cream Works to Improve the Appearance of Early Signs of Aging.

Aging | Wrinkle

United States
Indiana University

Withdrawn

Vitamin D Deficiency Causes Immune Dysfunction and Enables or Perpetuates the Development of Rheumatoid Arthritis

Arthritis, Rheumatoid | Vitamin D Deficiency

United States
University College Dublin
University of Ulster

Completed

An Intervention Study to Investigate the Effect of B-vitamin Supplementation for 2-years on Bone Health (Opti-Age)

Bone Health

Ireland
Northwestern University

Terminated

Vitamin D for Women at Increased Risk of Developing Ovarian, Fallopian, or Primary Peritoneal Cancer

Ovarian Cancer | Fallopian Tube Cancer | Primary Peritoneal Cancer

United States
Johns Hopkins Bloomberg School of Public Health
University of California, Davis; Newcastle University; HarvestPlus

Completed

Efficacy of Biofortified Maize to Improve Maternal and Infant Vitamin A Status

Vitamin A Deficiency

Zambia
Harvard School of Public Health (HSPH)
Muhimbili University of Health and Allied Sciences

Completed

Trial of Vitamins in HIV Progression and Transmission

HIV Infections | Disease Transmission, Vertical

United States
University of Aarhus

Completed

Thiamin Against Robust IBD Fatigue

Fatigue

Denmark
Dwight Owen

Recruiting

All-Trans Retinoic Acid (ATRA) and Atezolizumab for the Treatment of Recurrent or Metastatic Non-Small Cell Lung Cancer

Metastatic Lung Non-Small Cell Carcinoma | Stage IVA Lung Cancer AJCC v8 | Stage IVB Lung Cancer AJCC v8 | Stage IV Lung Cancer AJCC v8 | Recurrent Lung Non-Small Cell Carcinoma

United States
Xiaodong Zhou

Completed

Study of Vitamin A and Carbomer in Comforting the Ocular Surface Irritations of Glaucoma Patients

Primary Open-angle Glaucoma
Pauls Stradins Clinical University Hospital

Completed

The Effects of a Sublingual Sprayable Microemulsion of Vitamin D on Inflammatory Markers in COVID-19 Patients

COVID-19 | Vitamin D Deficiency

Latvia
University of California, Davis
Johns Hopkins University; Tropical Diseases Research Centre, Zambia

Completed

Effect of Daily Consumption of Orange Maize on Breast Milk Retinol in Lactating Zambian Women

Vitamin A Deficiency

Zambia
Alkeus Pharmaceuticals, Inc.

Completed

Phase 1 Safety Study of ALK-001 in Healthy Volunteers

Age-related Macular Degeneration | Stargardt Disease | Other Retinal Dystrophies
University of Helsinki
Päivikki and Sakari Sohlberg Foundation, Finland; Lilly Foundation

Completed

Oral Vitamin D Supplementation in Elderly Women

Optimal Vitamin D Administration

Finland
The Cooper Institute
Cooper Clinic

Completed

Effectiveness of a Vitamin Mineral Supplement (Omega-3)

Healthy

United States
Chengdu Maternal and Children's Health Care Hospital

Completed

Effect of Hookworm Elimination and Vitamin A Intervention on Iron Status of Preschool Children in Sichuan, China

Anemia | Worm Infections
Pamlab, Inc.
Baylor Health Care System; Women's Clinic Shoals; Gainesville Obstetrics & Gynecology and other collaborators

Completed

A Retrospective Analysis of Neevo®/Neevo®DHA Compared to a Standard Prenatal Vitamin in Anemia During Pregnancy

Preeclampsia | Anemia in Pregnancy

United States
Azienda Ospedaliera Specializzata in Gastroenterologia...

Unknown

Vitamine d Dosage and Constipation

Vitamine d Dosage in Slow Transit Time Constipation

Italy
Universitas Sumatera Utara

Completed

The Role of Vitamin D, A, and Beta Carotene in Tuberculosis Patients With Vitamin D Receptor Gene Polymorphism

Tuberculosis

Indonesia
The Cleveland Clinic

Completed

Vitamin D Replacement in Nonalcoholic Fatty Liver Disease

Nonalcoholic Fatty Liver

United States
Lo.Li.Pharma s.r.l

Withdrawn

Myo-inositol Plus Alpha-lactalbumin in PCOS Myo-inositol-resistant Patients

PCOS | Myo-inositol-resistance
Cxlusa

Completed

Ultraviolet-A and Riboflavin Treatment for Infectious Keratitis

Infectious Keratitis

United States
Mansoura University

Completed

Antioxidants and Zinc Improving Minimal Hepatic Encephalopathy In Truck Drivers; a Pilot Study

Minimal Hepatic Encephalopathy

Egypt
Alkeus Pharmaceuticals, Inc.

Active, not recruiting

Phase 3 Study of ALK-001 in Geographic Atrophy (SAGA)

Geographic Atrophy | Age Related Macular Degeneration | AMD | Atrophy, Geographic

United States
Hospices Civils de Lyon

Completed

Micronutrient Status Involved in Immunity in Elderly Patients With COVID-19 (MicroCovAging)

Covid19

France
Peking University People's Hospital

Unknown

Effect of Vitamin D Supplementation on Coronary Calcification and Parathyroid Hormone in CKD Patients (EVIDENCE)

Vitamin D Deficiency | Chronic Kidney Disease

China
Centre Hospitalier Departemental Vendee

Completed

Monocentric Randomized Study, Assessing the Interests of the Determination of Vitamin D in Prison Population. (Vitamine D)

Male Prisoner

France
Cairo University

Not yet recruiting

Periodontal Regeneration Using Vitamin A and PRF Compared to PRF Alone Treating Intra-bony Defects

Intrabony Periodontal Defect

Egypt
Ionis Pharmaceuticals, Inc.

Completed

Evaluate the Safety and Tolerability, as Well as the Pharmacokinetic and Pharmacodynamic Profiles of Single and Multiple Doses of Eplontersen Administered Subcutaneously to Healthy Volunteers and Patients With Hereditary Transthyretin-Mediated Amyloidosis (hATTR ).

Healthy Volunteers | hATTR Amyloidosis

Canada

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