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 “Serum Vitamin D”

200 trials

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 200 results

Not applicableUnknownNCT02862496
What this trial is testing

Bone Health in Hyperemesis Gravidarum

Who this might be right for
Hyperemesis Gravidarum
Kayseri Education and Research Hospital 60
Not applicableStudy completedNCT01564953
What this trial is testing

Magnesium is Associated With QoL in COPD: A Cross-sectional Study

Who this might be right for
Chronic Obstructive Pulmonary Disease (COPD)
University of Aarhus 143
Not applicableUnknownNCT05040269
What this trial is testing

Serum Levels of Vitamin D,Calcium and Magnesium in Preschool Recurrent Wheezers

Who this might be right for
Recurrent Wheezes
Sohag University 30
Large-scale testing (Phase 3)Study completedNCT06706271
What this trial is testing

The Effect of Vitamin D3 Supplementation on Hepcidin and Ferritin Serum Levels in Children With Chronic Kidney Disease

Who this might be right for
Chronic Kidney Disease Stage 1Chronic Kidney Disease Stage 2
Hasanuddin University 43
Post-approval studies (Phase 4)Study completedNCT05101811
What this trial is testing

Vitamin D Levels in Women With Polycystic Ovary Syndrome

Who this might be right for
Polycystic Ovary Syndrome
Ghamra Military Hospital 90
Not applicableStudy completedNCT07086092
What this trial is testing

Relationship Between Serum Markers and Motor Recovery and Ambulation in Post-stroke Patients

Who this might be right for
StrokeBiomarkersSerum Magnesium+2 more
Abant Izzet Baysal University 257
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
Not applicableStudy completedNCT05601271
What this trial is testing

Effect of Allopurinol on Markers of Mineral and Bone Metabolism

Who this might be right for
Chronic Kidney DiseasesOsteodystrophyUric Acid Concentration, Serum, Quantitative Trait Locus 7
University of Sao Paulo General Hospital 50
Not applicableActive Not RecruitingNCT06232486
What this trial is testing

Relationship Between Serum Vitamin D Levels and Postherpetic Neuralgia.

Who this might be right for
Postherpetic Neuralgia
Feng Gao 144
Not applicableStudy completedNCT01349127
What this trial is testing

Trial to Assess Vitamin D Requirements in Lactating Women

Who this might be right for
Vitamin D DeficiencyVitamin D Insufficiency
University College Cork 136
Testing effectiveness (Phase 2)Study completedNCT01354262
What this trial is testing

Effect of Vitamin D Supplementation on Hemoglobin A1c

Who this might be right for
Diabetes MellitusVitamin D Deficiency
Ascension Health 150
Very early researchStudy completedNCT01988116
What this trial is testing

Effects of Vitamin D Replacement on Hormones Regulating Iron Metabolism in Individuals With Chronic Kidney Disease

Who this might be right for
Chronic Kidney DiseaseAnemia of Chronic Disease
University of Alabama at Birmingham 40
Not applicableUnknownNCT02317718
What this trial is testing

Serum Vitamin D Level and Its Association With Ovarian Reserve and IVF Outcome

Who this might be right for
VITAMIN D Disorders
Fakih IVF Fertility Center 500
Not applicableStudy completedNCT06871631
What this trial is testing

Serum Vitamin D and Gingival Crevicular Fluid Levels of Osteocalcin and N-Terminal Telopeptide

Who this might be right for
D Vitamin DeficiencyOsteocalcinGingival Crevicular Fluid
Ondokuz Mayıs University 120
Not applicableStudy completedNCT01926808
What this trial is testing

Vitamin D Serum Concentrations & Supplementation in Children With Cerebral Palsy

Who this might be right for
Vitamin D Deficiency
Akron Children's Hospital 115
Not applicableStudy completedNCT04967469
What this trial is testing

Comparison of Serum Calcium Level Between Preoperative Vitamin D and Non-vitamin D Regimen of Total Parathyroidectomy in End-stage Renal Failure Patients in Rajavithi Hospital

Who this might be right for
End Stage Renal Disease
Department of Medical Services Ministry of Public Health of Thailand 60
Not applicableUnknownNCT05716750
What this trial is testing

Serum Prolidase Activity and the Role of Leptin in Osteomalacia

Who this might be right for
Osteomalacia
TUĞBA ŞAHBAZ 38
Not applicableStudy completedNCT00473317
What this trial is testing

Sunlight Exposures Effect on Serum Vitamin D Levels

Who this might be right for
Vitamin D Deficiency
Creighton University 6
Large-scale testing (Phase 3)Study completedNCT01240265
What this trial is testing

Vitamin D Supplementation in Breastfeeding Women

Who this might be right for
Vitamin D DeficiencyRicketsInfant Nutrition Disorders
Mayo Clinic 80
Early research (Phase 1)Study completedNCT02464462
What this trial is testing

The Role of Vitamin D3 and Calcium Supplementation in Attenuating T2DM Severity

Who this might be right for
Type 2 Diabetes Mellitus
York University 11
Next Page