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 D-deficient”

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

Large-scale testing (Phase 3)Study completedNCT01535508
What this trial is testing

Open Label Clinical Trial of Vitamin D in Children With Autism

Who this might be right for
AutismVitamin D Deficiency
University of California, San Francisco 10
Not applicableStudy completedNCT01105689
What this trial is testing

Utility of a Urine Screening Tool for Vitamin D Deficiency in Infants and Toddlers

Who this might be right for
Vitamin D Deficiency
Nemours Children's Clinic 60
Not applicableStudy completedNCT02104219
What this trial is testing

Retrospective, Non-interventional Natural History of Patients With Juvenile-onset Hypophosphatasia (HPP)

Who this might be right for
Hypophosphatasia (HPP)
Alexion Pharmaceuticals, Inc. 32
Post-approval studies (Phase 4)Study completedNCT02136771
What this trial is testing

Styrian Vitamin D Hypertension Trial

Who this might be right for
Arterial HypertensionVitamin D Deficiency
Medical University of Graz 200
Testing effectiveness (Phase 2)Study completedNCT01726777
What this trial is testing

Effect of Vitamin D Supplementation on Glucose Tolerance in Subjects at Risk for Diabetes With Low Vitamin D.

Who this might be right for
Type 2 Diabetes MellitusVitamin D Deficiency
University of Toronto 71
Post-approval studies (Phase 4)Study completedNCT02531867
What this trial is testing

Post-approval Clinical Study of Asfotase Alfa Treatment for Patients With Hypophosphatasia (HPP) in Japan

Who this might be right for
Hypophosphatasia
Alexion Pharmaceuticals, Inc. 13
Not applicableActive Not RecruitingNCT04946409
What this trial is testing

Burden of Disease and Functional Impairment in XLH

Who this might be right for
X Linked Hypophosphatemia
Wuerzburg University Hospital 60
Testing effectiveness (Phase 2)Study completedNCT00560300
What this trial is testing

Regulation of Bone Formation in Renal Osteodystrophy

Who this might be right for
Secondary HyperparathyroidismRenal Osteodystrophy
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) 61
Post-approval studies (Phase 4)Study completedNCT00581828
What this trial is testing

Does Treatment of Hypovitaminosis D Increase Calcium Absorption?

Who this might be right for
OsteoporosisOsteopeniaVitamin D Deficiency+3 more
University of Wisconsin, Madison 19
Not applicableEnded earlyNCT01337635
What this trial is testing

Vitamin D Deficiency and Atopic Dermatitis

Who this might be right for
Atopic DermatitisVitamin D Deficiency
Medical College of Wisconsin 7
Not applicableStudy completedNCT00267540
What this trial is testing

The Effect of Vitamin D on Bone Accretion and Turn-Over in Young Girls

Who this might be right for
Vitamin D Deficiency
University of Copenhagen 225
Post-approval studies (Phase 4)Study completedNCT01436916
What this trial is testing

Oral Cholecalciferol in Prevention of Type 2 Diabetes Mellitus

Who this might be right for
PrediabetesVitamin D Deficiency
Post Graduate Institute of Medical Education and Research, Chandigarh 50
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)Study completedNCT05460338
What this trial is testing

Vitamin D, Oxidative Stress and Inflammation in Hemodialysis

Who this might be right for
Oxidative StressInflammationVitamin D Deficiency
Ain Shams University 25
Not applicableStudy completedNCT06452082
What this trial is testing

Risk in Devel Long-COVID in Contracting SARS-CoV-2 Infection After COVID-19 Vaccination in Relation to Vitamin D3 Suppl

Who this might be right for
Vitamin d DeficiencyCOVID-19Long COVID
IRCCS San Raffaele 200
Post-approval studies (Phase 4)Study completedNCT02460380
What this trial is testing

The Effects of Vitamin D on Angiogenic Factors in Women With Polycystic Ovary Syndrome

Who this might be right for
Polycystic Ovary SyndromeVitamin D Deficiency
Maimonides Medical Center 93
Not applicableUnknownNCT04906161
What this trial is testing

Vitamin D and Serum Calcium Level Insufficiency and Early Dental Implant Failure

Who this might be right for
Vitamin D DeficiencyDental Implant Failure Nos
Ain Shams University 30
Testing effectiveness (Phase 2)Not Yet RecruitingNCT07654231
What this trial is testing

Reducing Inflammation to Improve Vascular and Bone Outcomes With Low-dose Colchicine in CKD

Who this might be right for
Chronic Kidney Disease Mineral and Bone DisorderHypertensionDiabetes+3 more
University of Texas Southwestern Medical Center 60
Post-approval studies (Phase 4)Study completedNCT04183257
What this trial is testing

Effect of Escalating Oral Vitamin D Replacement on HOMA-IR in Vitamin D Deficient Type 2 Diabetics

Who this might be right for
Vitamin D DeficiencyInsulin ResistanceDiabetes Mellitus, Type 2
King Edward Medical University 106
Not applicableStudy completedNCT01793181
What this trial is testing

Vitamin D Levels in Patients With Central Retinal Vein Occlusion- a Prospective Controlled Study

Who this might be right for
Vitamin d DeficiencyCentral Retinal Vein Occlusion
St. Erik Eye Hospital 216
Next Page