Clinical Trials on Vitamin B 12 Deficiency

Total 1181 results

University College Dublin

Completed

Absorption Kinetics and Efficacy of Vitamin D Enriched Supplements in Older Adults.

Vitamin D Deficiency

Ireland
Department of Endocrinology, Centre of Postgraduate...

Completed

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

Vitamin D Deficiency

Poland
Semmelweis University
Pharma Patent Kft.

Completed

The Efficacy and the Safety of Vitamin D3 30,000 IU for Loading Dose Schedules

Vitamin D Deficiency

Hungary
Bangladesh Institute of Research and Rehabilitation...
Bangladesh Medical Research Council (BMRC)

Completed

Reference Interval of Vitamin D of Coastal Fishermen in Cox's Bazar District of Bangladesh

Vitamin D Deficiency

Bangladesh
Nutrition Institute, Slovenia
Slovenian Research Agency; Higher School of Applied Sciences (VIST); Valens Int...

Completed

Challenges in Achieving Adequate Vitamin D Status in the Adult Population/ Part 2 (VITAD/2)

Vitamin D Deficiency

Slovenia
University of Wisconsin, Madison
Medical College of Wisconsin

Completed

Personalized Vitamin D Supplementation in European and African Americans

Vitamin D Deficiency

United States
Applied Science Private University

Completed

The Effects of Vitamin D3 Alone and in a Combination With Omega-3 on the Association of C-peptide With Glycemic Control

Vitamin D Deficiency

Jordan
Shih Chien University
Shin Kong Wu Ho-Su Memorial Hospital

Completed

Effects of Vitamin D Supplementation on Immune Function in Infants

Vitamin D Deficiency

Taiwan
University of Aarhus

Completed

The Influence of Food Matrix Delivery System on the Bioavailability of Vitamin D3 (DFORT)

Vitamin D Deficiency

Denmark
ART Fertility Clinics LLC

Completed

Follicular Fluid, Bioavailable Vitamin D and Embryo Quality Markers

Vitamin D Deficiency

United Arab Emirates
University Hospital, Basel, Switzerland

Completed

Oral Vitamin D Substitution Weekly or Monthly and Adherence

Vitamin D Deficiency

Switzerland
University of Minnesota

Completed

Vitamin D Levels Following Topical Application of Vitamin D Ointment (VITD-001)

Vitamin D Deficiency

United States
University of Surrey
Institute of Naval Medicine; CTRM Lympstone; Navy Command Headquarters

Completed

Vitamin D Supplementation D_SAF Pilot Study

Vitamin D Deficiency

United Kingdom
Applied Science Private University

Completed

Effect of Vitamin D3 and Omega-3FA on Leptin and HbA1C With Vitamin D Deficiency

Vitamin D Deficiency

Jordan
United Arab Emirates University

Completed

Effects of Vitamin D and Calcium Supplementation on Health and Well-being of Vitamin D Deficient UAE Citizens

Vitamin D Deficiency

United Arab Emirates
Milton S. Hershey Medical Center

Completed

Genetic, Dietary and Environmental Influences on Vitamin D Metabolism

Vitamin D Deficiency

United States
University of Wisconsin, Madison

Withdrawn

Evaluation of a Transdermal Vitamin D3 Delivery System, D3forME (D3forME)

Vitamin D Deficiency

United States
Guy's and St Thomas' NHS Foundation Trust

Completed

Vitamin D and Immunity: Photosynthesis Versus Supplementation (IMMUNI-D)

Vitamin D Deficiency
Charles Drew University of Medicine and Science
National Center for Research Resources (NCRR)

Completed

Effect of Vitamin D3 on Vascular Function

Vitamin D Deficiency
Virginia Polytechnic Institute and State University

Completed

Effects of Vitamin D Supplementation on Strength, Bone Density, and Injury Risk in Collegiate Athletes

Vitamin D Deficiency

United States
Medical University of South Carolina
Eunice Kennedy Shriver National Institute of Child Health and Human Development... and other collaborators

Completed

Establishing the Vitamin D Requirements During Lactation

Vitamin D Deficiency

United States
Universitaire Ziekenhuizen KU Leuven

Unknown

Isolation of Vitamin D Binding Protein Isoforms From Human Volunteers

Vitamin D Deficiency

Belgium
Pontificia Universidad Catolica de Chile
Harvard Medical School (HMS and HSDM); Fuerza Aérea de Chile; Instituto Antártico...

Completed

Effects of Antarctic Environment on Vitamin D Status and Health Risk Biomarkers of Its Inhabitants (AntarD)

Vitamin D Deficiency
King Faisal Specialist Hospital & Research Center

Withdrawn

Magnitude of Changes in 25 OH Vitamin D3 Levels After Vitamin D3 Supplementation

Vitamin D Deficiency

Saudi Arabia
Rockefeller University

Completed

The Effect of Oral Vitamin D Versus Narrow-Band UV-B Exposure on the Lipid Profile

Vitamin D Deficiency

United States
University of Surrey
Conselho Nacional de Desenvolvimento Científico e Tecnológico; Universidade...

Completed

Vitamin D Supplementation and Sunlight Exposure in Brazilian Women Living in Opposite Latitudes (The D-SOL Study) (D-SOL)

Vitamin D Deficiency

United Kingdom, Brazil
DongGuk University

Completed

Vitamin D Deficiency Still Growing

Vitamin D Deficiency
Imam Abdulrahman Bin Faisal University

Completed

Topical Delivery of Vitamin D3 as Vitamin D Supplementation

Vitamin D Deficiency

Saudi Arabia
Nancy Ahmed El Salmawy

Unknown

Prevalence of Early Childhood Caries in Egyptian Children With Serum Vitamin D Deficiency.

Vitamin D Deficiency
Bangor University
University of East Anglia

Completed

Vitamin D Status and Immune Function

Vitamin D Deficiency

United Kingdom
Boston University

Completed

The Effect Of Vitamin D On Measures Of Bone Health And Gene Expression

Vitamin D Deficiency

United States
Boston University

Completed

Availability of Vitamin D in Orange Juice

Vitamin D Deficiency

United States
Hospital for Special Surgery, New York

Completed

Vitamin D and Functional Outcomes After Total Hip Arthroplasty (THA)

Vitamin D Deficiency

United States
University of Miami
Merck Sharp & Dohme LLC

Completed

Safety of Vitamin D Supplementation in Older Persons

Vitamin D Deficiency

United States
Umeå University
Region Skane

Completed

Comparing Different Amounts of Vitamin D Supplementation to Preschool Children Living in Northern and Southern Sweden (Dvisum)

Vitamin D Deficiency

Sweden
University Hospital Inselspital, Berne
Significantis GmbH

Completed

Prevalence and Consequences of Vitamin D Deficiency in Pregnant Women in Switzerland (PCVDDPWS)

Vitamin D Deficiency

Switzerland
Kwang Dong Pharmaceutical co., ltd.

Completed

A Prospective, Multi-center Study to Evaluate the Efficacy and Safety of Vitamin D3 B.O.N. Intramuscular Injection in Adults With Vitamin D Deficiency

Vitamin D Deficiency
Meir Medical Center

Unknown

Empirical Comperative Study Of Variation Blood Level Antibody Vitamin D at Different Groups Of Patients Compared Healthy Peoples

Vitamin D Deficiency
Chinese Academy of Sciences

Completed

Vitamin D Intervention Trial in Healthy Chinese, Phase II

Vitamin D Deficiency

China
Chinese Academy of Sciences

Completed

Vitamin D Intervention Trial in Healthy Chinese

Vitamin D Deficiency

China
Medical University of Graz
European Union

Completed

Vitamin D and Mortality: an Individual Participant Data Meta-analysis of Standardized 25-hydroxyvitamin D

Vitamin D Deficiency

Austria
Fujirebio Diagnostics, Inc.

Completed

Study Vitamin D in Healthy Individuals

Vitamin D Deficiency

United States
Merck Sharp & Dohme LLC

Completed

A Study to Assess the Effectiveness of an Investigational Drug in Elderly Subjects With Low Vitamin D Levels (0822A-009)

Vitamin D Deficiency
Tufts University
Pfizer

Completed

A Pilot Study of the Effect of Dietary Fat Type and Amount on Vitamin D3 Absorption (MUFA/PUFA)

Vitamin D Deficiency

United States
Chinese Academy of Sciences

Completed

A Single High-dose Oral Supplement of Vitamin D in Young Chinese

Vitamin D Deficiency

China
USDA, Western Human Nutrition Research Center

Completed

Assessment of Vitamin D Supplementation and Immune Function (FL-82)

Vitamin D Deficiency

United States
University College Cork

Completed

Inter-relationship Between Vitamin D Requirements and Calcium Intake in Older Adults (VitD-Ca)

Vitamin D Deficiency

Ireland
Rambam Health Care Campus

Unknown

Bioavailability of Vitamin D Encapsulated in Casein Micelles, Compared to Its Bioavailability in a Synthetic Emulsifier Currently Used for Supplementation and Enrichment. (VD)

Vitamin D Deficiency

Israel
Ulrike Lehmann

Completed

Bioefficiency of of Conventional Fish and Vitamin D Fortified Fish

Vitamin D Deficiency

Germany
Eunice Kennedy Shriver National Institute of Child...

Completed

Prevention of Vitamin D Deficiency

Vitamin D Deficiency

United States

Clinical Trials on Vitamin B 12 Deficiency

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Cote d'Ivoire

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Rare Diseases

Drug Interventions

Dietary Supplements

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