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Results for “25-hydroxyvitamin D Levels”

39 trials

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Showing 20 of 39 results

Early research (Phase 1)Study completedNCT01868945
What this trial is testing

Dose Finding Study in Physically Frail Elderly to Measure 25(OH) Vitamin D Levels After Supplementation With Hy.D Calcifediol 25 SD/S and Vitamin D3

Who this might be right for
Pre-frail ElderlyFrail Elderly
dsm-firmenich Switzerland AG 59
Not applicableUnknownNCT01555424
What this trial is testing

Vitamin D Fortified Cheese and Well-being in the Institutionalized Elderly

Who this might be right for
The Focus is to Assess 25-hydroxyvitamin D Levels and Well-being
University of Toronto 28
Not applicableStudy completedNCT04174625
What this trial is testing

The Effect of Omega 3 on 25 Hydroxyvitamin D

Who this might be right for
25-hydroxyvitamin D Levels
Applied Science Private University 80
Not applicableStudy completedNCT00910260
What this trial is testing

Impact on UVB Narrow Band and UVA1 Therapy on Serum 25-hydroxyvitamin D Levels

Who this might be right for
Skin Disease
University of Zurich 116
Not applicableStudy completedNCT01919905
What this trial is testing

Mozzarella Cheese Vitamin D and Bioavailability

Who this might be right for
Change in Serum 25 Hydroxyvitamin D Levels
University of Toronto 100
Not applicableStudy completedNCT01698840
What this trial is testing

Effect of Vitamin D in Diets of Preterm Infants

Who this might be right for
Premature Infants
Baylor College of Medicine 39
Not applicableStudy completedNCT03871868
What this trial is testing

Vitamin D Levels And Myoma Uteri

Who this might be right for
Myoma;UterusVitamin D DeficiencyPolycystic Ovary
Kanuni Sultan Suleyman Training and Research Hospital 300
Large-scale testing (Phase 3)Study completedNCT01190137
What this trial is testing

Study Comparing Two Isoforms of Vitamin D Supplements for Infants

Who this might be right for
Healthy
McGill University 52
Post-approval studies (Phase 4)Study completedNCT01419119
What this trial is testing

Vitamin Deficiency in Immigrants, a Treatment Study

Who this might be right for
Vitamin D Deficiency
Umeå University 160
Testing effectiveness (Phase 2)Study completedNCT02009748
What this trial is testing

Vitamin D Supplementation in Cirrhotic Patients

Who this might be right for
CirrhosisVitamin D Deficiency
Medical University of Graz 36
Not applicableStudy completedNCT04865432
What this trial is testing

Solius UV Light Source in Improving Serum Levels of 25-hydroxyvitamin D

Who this might be right for
Vitamin D DeficiencyVitamin D Insufficiency
Boston University 10
Not applicableWithdrawnNCT01302704
What this trial is testing

The Influence of Proton Pump Inhibitors (PPI's) on Blood Levels of 25-Hydroxyvitamin D.

Who this might be right for
Vitamin D
Mike O'Callaghan Military Hospital
Not applicableStudy completedNCT04637880
What this trial is testing

25- Hydroxyvitamin D Levels in Pregnancy and Effects on Pregnancy Related Disorders

Who this might be right for
Vitamin d DeficiencyPreeclampsiaPreterm Delivery+2 more
Medical University of Vienna 249
Not applicableStudy completedNCT02293187
What this trial is testing

Impact of Vitamin D on 25-hydroxyvitamin D Levels and Physical Function

Who this might be right for
Vitamin D DeficiencySarcopenia
Tufts University 100
Not applicableStudy completedNCT05398939
What this trial is testing

Impact of COVID-19 Vaccination on Serum 25-hydroxyvitamin D Level

Who this might be right for
Acne VulgarisVitamin D DeficiencyCOVID-19
National Taiwan University Hospital 20
Not applicableStudy completedNCT03334136
What this trial is testing

The Effect of Vitamin D Supplementation on Psoriasis Severity

Who this might be right for
PsoriasisVitamin D Deficiency
University Hospital of North Norway 115
Not applicableStudy completedNCT02395081
What this trial is testing

Trial of Vitamin D Supplements to Raise Calcidiol Levels of Pregnant Women in Mongolia

Who this might be right for
PregnancyVitamin D Deficiency
Brigham and Women's Hospital 360
Not applicableStudy completedNCT02906319
What this trial is testing

Vitamin D and HbA1c Levels in Diabetic Patients With CKD

Who this might be right for
Vitamin D DeficiencyDiabetes Mellitus
Ng Yong Muh 100
Not applicableUnknownNCT02517164
What this trial is testing

Role of Vitamin D Levels (Serum 25-hydroxyvitamin D) and Cognitive Impairment in the Occurrence of Falls

Who this might be right for
Accidental Falls
University Hospital, Caen 300
Large-scale testing (Phase 3)Study completedNCT04591847
What this trial is testing

Pregnancy Outcome and Vitamin D Level Among Vitamin D Supplementation During Pregnancy

Who this might be right for
Pregnancy Outcome Among Vitamin D Supplementation During Pregnancy
Department of Medical Services Ministry of Public Health of Thailand 60
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