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Results for “Vitamin D 25 OH Deficiency”

43 trials

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Showing 20 of 43 results

Not applicableUnknownNCT02535910
What this trial is testing

Effect of vitaminD3 or 25(OH)D3 Fortified Dairy on Vitmain D Status and CVD Risk Markers

Who this might be right for
Hypovitaminosis DCardiovascular Diseases
University of Reading 18
Not applicableStudy completedNCT02460211
What this trial is testing

Acute Effect of Systemic Stress on Measured Blood Concentrations of 25 (OH) Vitamin D

Who this might be right for
Cardiovascular DiseaseVitamin D Deficiency
Intermountain Health Care, Inc. 150
Not applicableStudy completedNCT04822038
What this trial is testing

Immunomodulating Effects of Supplementation With 25-OH Vitamin D

Who this might be right for
Vitamin D DeficiencyScleroderma, Systemic
Coordinación de Investigación en Salud, Mexico 49
Not applicableUnknownNCT02551835
What this trial is testing

Vitamin D Supplements on Markers for Cardiovascular Disease and Diabetes: an Individual Participant Data Meta-analysis

Who this might be right for
Vitamin D DeficiencyVitamin; Excess Vitamin D (Nutritional)
Amsterdam UMC, location VUmc 2,945
Not applicableStudy completedNCT05343273
What this trial is testing

25-Hydroxyvitamin D Levels in Patients With Periodontitis (Stage III)

Who this might be right for
Vitamin D DeficiencyPeriodontitis
Ataturk University 83
Not applicableUnknownNCT06711874
What this trial is testing

Abnormally High Parathyroid Hormone Levels Worsens Outcomes in Vitamin D Depleted Critical Care Patients

Who this might be right for
Vitamin D DeficiencyHyperparathyroidismCritically Ill Patients Admitted in ICU
National Taiwan University Hospital 320
Not applicableUnknownNCT05824897
What this trial is testing

The Cohort Study of the Correlation Between Serum 25(OH)D Level and Pregnancy Outcome

Who this might be right for
Vitamin D DeficiencyRecurrent MiscarriagePregnancy Related
Aimin Zhao 171
Very early researchStudy completedNCT03401541
What this trial is testing

25-Hydroxyvitamin D Pharmacokinetic Study

Who this might be right for
Vitamin D DeficiencyFat Malabsorption
Boston University 16
Very early researchEnded earlyNCT00585442
What this trial is testing

Effects of Vitamin D on Renin Expression in Hypertensive Patients

Who this might be right for
HypertensionVitamin D Deficiency
University of Utah 12
Not applicableEnrolling By InvitationNCT07565064
What this trial is testing

ALPCO 25(OH) Vitamin D CLIA Kit - Fresh Versus Frozen Serum and Plasma Stability Study

Who this might be right for
Vitamin D DeficiencyVitamin D InsufficiencyHealthy Volunteers
American Laboratory Products Company 80
Post-approval studies (Phase 4)Study completedNCT03035084
What this trial is testing

Is Vitamin D2 Treatment-associated Decrease in 25(OH)D3 Level a Reciprocal Phenomena?

Who this might be right for
Vitamin D Deficiency25-Hydroxyvitamin D Concentration
King Faisal Specialist Hospital & Research Center 100
Not applicableUnknownNCT01672047
What this trial is testing

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

Who this might be right for
Chronic Kidney DiseaseVitamin D Deficiency
Peking University People's Hospital 350
Post-approval studies (Phase 4)Study completedNCT05591170
What this trial is testing

Effect of Single High Dose of Cholecalciferol on Serum Metabolites of Vitamin D

Who this might be right for
Vitamin D Deficiency
Department of Endocrinology, Centre of Postgraduate Medical Education 58
Post-approval studies (Phase 4)Study completedNCT01845142
What this trial is testing

Immunologic Action of a Single Dose Cholecalciferol

Who this might be right for
Vitamin D Deficiency
Margitta Worm 40
Not applicableStudy completedNCT02275650
What this trial is testing

The Role of Narrowband Ultraviolet B Exposure in the Maintenance of Vitamin D Levels During Winter

Who this might be right for
Vitamin D Deficiency
Joint Authority for Päijät-Häme Social and Health Care 37
Post-approval studies (Phase 4)Study completedNCT01991054
What this trial is testing

The Effects of Vitamin D Supplementation on Patients With Type 2 Diabetes and Vitamin D Deficiency

Who this might be right for
Diabetes MellitusVitamin D Deficiency
HaEmek Medical Center, Israel 45
Not applicableStudy completedNCT03463642
What this trial is testing

The Efficacy of Different Vitamin D Supplementation Delivery Methods

Who this might be right for
Vitamin D Deficiency
University of Wolverhampton 62
Large-scale testing (Phase 3)Study completedNCT02328404
What this trial is testing

The Effect of Vitamin D Supplementation Among Overweight Jordanian Women With Polycystic Ovary Syndrome (PCOS)

Who this might be right for
Polycystic Ovary SyndromeHypovitaminosis D
Hayat Pharmaceutical Co. PLC 60
Very early researchStudy completedNCT04939792
What this trial is testing

Optimization of Blood Levels of 25(OH)-Vitamin D in African Americans

Who this might be right for
Vitamin D Deficiency
Louisiana State University Health Sciences Center Shreveport 165
Not applicableStudy completedNCT02485197
What this trial is testing

Muscle Metabolic Function in Older Adults With Different Vitamin D Status Before and After Exercise

Who this might be right for
Vitamin D Deficiency
David Travis Thomas 7
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