Crick
HomeTrialsGenesDrugs23andMeGraphBlogContact
  • Home
  • Trials
  • Genes
  • Drugs
  • 23andMe
  • Graph
  • Blog
  • Contact
Crick

An open-source clinical intelligence platform. Explore clinical trials, gene networks, and molecular structures using public data sources.

Data Sources

  • ClinicalTrials.gov
  • OpenTargets
  • ClinVar
  • PubChem

Links

  • Contact
  • Privacy

© 2026 Crick. All rights reserved.

Crick is for educational purposes only. Not medical advice.

Results for “Vitamin A”

Filters

Phase
Early Phase 1
Phase 1
Phase 2
Phase 3
Phase 4
Status
Recruiting
Active, Not Recruiting
Not Yet Recruiting
Completed
Enrolling by Invitation

Showing 20 of 0 results

Post-approval studies (Phase 4)Study completedNCT02906566
What this trial is testing

Retinol on Human Skin Aging in East Asian Descent

Who this might be right for
Intrinsic Aging of Skin
Stanford University 110
Large-scale testing (Phase 3)Active Not RecruitingNCT03071666
What this trial is testing

Vitamin B12 Supplementation During Pregnancy on Cognitive Development

Who this might be right for
Pregnancy RelatedVitamin B 12 DeficiencyAnemia
Centre For International Health 800
Not applicableLooking for participantsNCT06861062
What this trial is testing

Effects of Vitamin D3 and Yeast Beta-Glucan Supplementation on Glycemic Control and Cardiovascular Disease Risk in Patients With Type 2 Diabetes

Who this might be right for
Diabetes Mellitus, Type 2
Huazhong University of Science and Technology 2,500
Post-approval studies (Phase 4)Ended earlyNCT00879970
What this trial is testing

Thiazolidinedione Intervention With Vitamin D Evaluation

Who this might be right for
Diabetes Mellitus, Type 2
GlaxoSmithKline 1,332
Large-scale testing (Phase 3)UnknownNCT00752401
What this trial is testing

Vitamin D3 Substitution in Vitamin D Deficient Kidney Transplant Recipients

Who this might be right for
Kidney TransplantationVitamin D DeficiencyRenal Osteodystrophy
Medical University of Vienna 200
Not applicableStudy completedNCT07206901
What this trial is testing

Evaluation of an Ayurvedic Herbal Compound Compared to Vitamins C+E and Placebo on Vascular Function in High-Risk Subjects

Who this might be right for
Coronary Artery Disease
Maharishi International University 143
Large-scale testing (Phase 3)UnknownNCT01477801
What this trial is testing

Effects of Cholecalciferol Supplementation in Patients With Chronic Heart Failure and LOw vITamind D Levels

Who this might be right for
Heart FailureVitamin D Deficiency
Azienda Unita' Sanitaria Locale Di Modena 34
Not applicableStudy completedNCT01050387
What this trial is testing

Effects of Vitamin D Dose and Genotype of the Binding Protein in Infants and Children

Who this might be right for
Vitamin D Deficiency
Yale University 193
Large-scale testing (Phase 3)Study completedNCT00824993
What this trial is testing

Prevention of Osteoporosis in Bone Marrow Transplantation (BMT) Patients

Who this might be right for
Hematological Malignancies
M.D. Anderson Cancer Center 78
Not applicableWithdrawnNCT00037063
What this trial is testing

See if Certain Antioxidants and Vitamins Will Keep Lactate Levels Down in Patients Taking Anti-HIV Drugs

Who this might be right for
HIV Infections
National Institute of Allergy and Infectious Diseases (NIAID)
Early research (Phase 1)UnknownNCT02903537
What this trial is testing

Tolerogenic Dendritic Cells as a Therapeutic Strategy for the Treatment of Multiple Sclerosis Patients (TOLERVIT-MS)

Who this might be right for
Multiple Sclerosis, Relapsing-RemittingMultiple Sclerosis, Chronic Progressive
Fundació Institut Germans Trias i Pujol 16
Not applicableLooking for participantsNCT07512557
What this trial is testing

Probiotic Research On Safety, Palatability, Efficacy and Receptivity

Who this might be right for
Probiotic Intervention
Carleton University 82
Not applicableUnknownNCT06284967
What this trial is testing

Association Of Serum Vitamin D Level With Isthmic Spondylolysis

Who this might be right for
Spondylolysis
Assiut University 184
Not applicableStudy completedNCT06768086
What this trial is testing

Preoperative Administration of EGCG, Vitamin D and DCI Prior Hysteroscopic Myomectomy

Who this might be right for
Uterine FibroidsHysteroscopic MyomectomyTreatment Compliance+2 more
Centro di Ricerca Clinica Salentino 90
Not applicableStudy completedNCT01827345
What this trial is testing

Vitamin D as a Supplement Against Falls in Elderly Study

Who this might be right for
Vitamin D Deficiency (10 ng/mL to 30 ng/mL)
University of Florida 25
Not applicableStudy completedNCT03241381
What this trial is testing

Prevalence of Serum-Vitamin D Abnormalities, Periodontitis and Anaemia in Patients With Melasma

Who this might be right for
Melasma, Periodontitis, Vitamin D Abnormalities, Anaemia
Panineeya Mahavidyalaya Institute of Dental Sciences & Research Centre 100
Not applicableActive Not RecruitingNCT07579637
What this trial is testing

Effect of Vitamin D on Postoperative Pain in Symptomatic Irreversible Pulpitis

Who this might be right for
Pulpitis - IrreversibleVitamin D Deficiency
Future University in Egypt 54
Large-scale testing (Phase 3)Study completedNCT01646437
What this trial is testing

The International Polycap Study 3 (TIPS-3)

Who this might be right for
Cardiovascular DiseaseFracturesCancers
Population Health Research Institute 7,793
Not applicableStudy completedNCT01816711
What this trial is testing

Vitamin D Levels in Frail Elderly Patients With a Hip Fracture

Who this might be right for
Hip FractureVitamin D Deficiency
University of Aarhus 447
Large-scale testing (Phase 3)UnknownNCT04156321
What this trial is testing

Moringa Oleifera (Drumstick Leaves) for Improving Haemoglobin, Vitamin A Status and Underweight Among Adolescent Girls in Rural Bangladesh: A Quasi-experimental Study

Who this might be right for
Assess the Impact of Moringa Leaves on Serum Heamoglobin and Vitamin A Level Among the Adolescent Girls
International Centre for Diarrhoeal Disease Research, Bangladesh 226
Next Page