Clinical trials: Vitamin Deficiencies
Vitamin D Deficiency, End-stage Renal Disease
Impact of Vitamin D Repletion in Hemodialysis Patients
Dialysis patients often suffer from defects in their immune system (that part of the body which fights infection). Evidence suggests that Vitamin D deficiency may have a negative effect on immunity, and many dialysis patients are…
- Trial name
- NCT01175798
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 116 people
- Sponsor
- Mehrotra, Anita, M.D.
X-linked Hypophosphatemia (XLH)
Study to Assess the Safety, Pharmacokinetics and Efficacy of KRN23 in Adult Chinese Patients With XLH
The purpose of this study is to assess the safety, pharmacokinetics and efficacy of KRN23 in adult Chinese patients with XLH
- Trial name
- NCT04842019
- Testing
- KRN23
- Where
- 5 sites in China
- Volunteers
- 18 people
- Sponsor
- Kyowa Kirin Co., Ltd.
Vitamin D Deficiency
Determination of Effective Vitamin D Replacement and Monitoring Strategies in Vitamin D Deficiency State
The purpose of the study is determination of effective vitamin D replacement strategy in vitamin D deficiency states with currently available preparations in Pakistan \& to determine the cost effective monitoring strategy with…
- Trial name
- EVIREST-D (NCT01430793)
- Testing
- Vitamin D3 600,000 units IM, Vitamin D3 600,000 Orally, Vitamin D3 200,000 units IM
- Where
- Pakistan
- Volunteers
- 99 people
- Sponsor
- Aga Khan University
Dietary Supplements, Intensive Care Unit
Vitamin D Supplementation in Intensive Care Unit Patients
A randomized controlled trial is designed to investigate the safety and clinical efficacy of a mega dose of VD in patients admitted in intensive care unit (ICU).
- Conditions
- Dietary Supplements, Intensive Care Unit, Vitamin D Deficiency, Vitamin D Toxicity
- Trial name
- NCT04915963
- Testing
- Vitamin D supplementation
- Volunteers
- 340 people
- Sponsor
- Association Tunisienne d'Etude & de Recherche sur l'Athérosclérose
Vitamin D Deficiency
Clinical Assessment of Adjunctive Omega-3 Versus Vitamin D Daily Supplements on Active Periodontal Therapy With Stage II Grade B Periodontitis Patients
Clinical Assessment of Adjunctive Omega-3 Versus Vitamin D daily Supplements on Active Periodontal Therapy with Stage II Grade B Periodontitis Patients: A Randomized controlled clinical trial.
- Trial name
- NCT06654063
- Testing
- non-surgical periodontal therapy (SRP), non-surgical periodontal therapy (SRP)+ Omega-3, non-surgical periodontal therapy (SRP)+ Vitamin D
- Where
- Egypt
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- Cairo University
Vitamin D Deficiency, Low Bone Density
Nursing-Home Residents Given Bread Fortified With Vitamin D3
Background. For older adults, serum 25-hydroxyvitamin D (25(OH)D) higher than 75 nmol/L lowers fracture risk and attainment of this 25(OH)D target may require 125 mcg (5000 IU)/d of vitamin D3.
- Trial name
- NCT00789503
- Testing
- Bread fortified with vitamin D3 and calcium
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- University of Toronto
Primary Hyperparathyroidism, Vitamin D Deficiency
Vitamin D Repletion in Primary Hyperparathyroidism
This study will look at the effect of 2 treatment regimens that contain vitamin D in a six-month treatment trial of patients with PHPT who are vitamin D deficient.
- Trial name
- NCT01306656
- Testing
- 10,000 IU Vitamin D3, Vitamin D
- Where
- United States
- Volunteers
- 9 people
- Sponsor
- Columbia University
Osteoporosis, Aging
Vitamin D Supplementation in Older Women
The purpose of this study is to examine the effects of several doses of vitamin D on hormones related to bone, calcium absorption, bone density and muscle strength.
- Trial name
- VIDOS (NCT00472823)
- Testing
- Vitamin D3, Calcium Citrate (Citracal)
- Where
- United States
- Volunteers
- 273 people
- Sponsor
- Creighton University
Folate Deficiency, Vitamin B 12 Deficiency
Effectiveness of Fortification With Folic Acid and Vitamin B12 Among Teenage Girls
Folic acid and vitamin B12 play an interdependent role in key cellular processes, namely deoxyribonucleic acid synthesis, cell division, red blood cell formation, and nervous system myelination.
- Conditions
- Folate Deficiency, Vitamin B 12 Deficiency, Anemia, Megaloblastic, Cognitive Development
- Trial name
- NCT06100146
- Testing
- Folic acid and vitamin B12 fortified flour, Unfortified cereal flour
- Where
- 2 sites in Ethiopia
- Volunteers
- 472 people, healthy volunteers welcome
- Sponsor
- University Ghent
Vitamin D Deficiency
Vitamin D in Diabetic Children
Vitamin D is so-called "sunshine vitamin",it is synthesized in the skin during exposure to the ultraviolet rays in sunlight so it has been suggested that ∼ 5-30 minutes of sun exposure between 10:00 a.m. and 3:00 p.m.
- Trial name
- NCT03258086
- Testing
- blood sample test
- Where
- Egypt
- Volunteers
- 80 people
- Sponsor
- Assiut University
Fat Soluble Vitamin Deficiencies and Disorders
Establishing Reference Ranges for Fat-Soluble Vitamins in Healthy Chinese Adults
Vitamins are essential micronutrients required for maintaining normal physiological functions and metabolism in humans. Among them, fat-soluble vitamins (FSV) such as vitamins A, D, E, and K are absorbed in the intestines in the…
- Trial name
- NCT06512688
- Where
- China
- Volunteers
- 100,000 people, healthy volunteers welcome
- Sponsor
- First Affiliated Hospital of Zhejiang University
Diabetes Mellitus, Non-Insulin Dependent, Non-Insulin Dependent
Study of the Effects of Vitamin C on Patients With Type 2 Diabetes
Diabetes is a disease characterized by decreased sensitivity to the action on insulin to promote sugar (glucose) use and blood vessel relaxation (vasodilation) in muscle.
- Trial name
- NCT00001870
- Testing
- Acetylcholine
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- National Center for Complementary and Integrative Health (NCCIH)
Arthritis, Rheumatoid, Vitamin D Deficiency
Vitamin D Deficiency Causes Immune Dysfunction and Enables or Perpetuates the Development of Rheumatoid Arthritis
Recent studies have demonstrated that subjects with low blood levels of vitamin D are at a higher risk of developing autoimmune diseases such as Rheumatoid Arthritis (RA).
- Trial name
- NCT00279461
- Where
- United States
- Sponsor
- Indiana University
Peritoneal Dialysis-associated Peritonitis, Vitamin D Deficiency
The Effects of Oral Vitamin D Supplementation on the Prevention of Peritoneal Dialysis-related Peritonitis
This is a pilot randomized, controlled trial of Vitamin D supplementation in patients on peritoneal dialysis to determine the feasibility of a future full-scale RCT exploring if oral administration of vitamin D3 could reduce the…
- Trial name
- NCT03264625
- Testing
- Cholecalciferol (2000iu qd), Routine therapy for PD
- Where
- China
- Volunteers
- 60 people
- Sponsor
- Peking University First Hospital
Vitamin B 12 Deficiency
Cobalamin Supply and Metabolism in Healthy Children From Birth to the Age of 12 Months and in Their Mothers (Cbl_Neo)
Introduction: Infants with severe vitamin B12 (cobalamin, Cbl) deficiency can develop severe, sometimes irreparable neurological damage in the first months of life.
- Trial name
- Cbl_Neo (NCT05315843)
- Where
- 2 sites in Austria, Germany
- Volunteers
- 160 people
- Sponsor
- University Children's Hospital, Zurich
Mild Cognitive Impairment, Dementia
COMPARATIVE EFFECTIVENESS OF MCI and DEMENTIA TREATMENTS IN A COMMUNITY-BASED DEMENTIA PRACTICE
This retrospective study is a more extensive, confirmatory analysis of the cognitive and functional outcomes initially seen in 2 groups of MCI/dementia patients in Springfield, MA and compares specialized dementia care and a…
- Conditions
- Mild Cognitive Impairment, Dementia, Hypoxia, Hyperhomocysteinemia
- Trial name
- NCT02860338
- Volunteers
- 900 people
- Sponsor
- Clionsky Neuro Systems Inc.
Anemia in Pregnancy, Preeclampsia
A Retrospective Analysis of Neevo®/Neevo®DHA Compared to a Standard Prenatal Vitamin in Anemia During Pregnancy
This study is a multi-site, retrospective chart review to determine the effect of Neevo® or Neevo®DHA (with higher folate and B12) versus standard prenatal vitamins on hemoglobin (Hgb) levels in pregnant women throughout the…
- Trial name
- NCT01062958
- Testing
- Neevo® (a medical food), Prenatal vitamins (≤1mg folic acid, 27 - 35mg iron, and ≤12mcg vitamin B12)
- Where
- 3 sites in United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Pamlab, Inc.
Amyotrophic Lateral Sclerosis
Influence of the Vitamin D Blood Levels on the Amyotrophic Lateral Sclerosis Phenotype
The main objective of this study is to investigate the correlation between the rate of motor decline and blood levels of Vitamin D total.
- Trial name
- NCT01823380
- Testing
- Blood test
- Where
- France
- Volunteers
- 127 people
- Sponsor
- University Hospital, Montpellier
Obesity, Vitamin D Deficiency
Effect of Exercise on Vitamin d in Obese
The aim of the current study was to investigate the effect of exercise-induced lipolysis on vitamin D status in obese children. Two types of exercises that have different effects on lipolysis were used.
- Trial name
- NCT05066490
- Testing
- Endurance exercise, Resistance exersises.
- Where
- Saudi Arabia
- Volunteers
- 30 people
- Sponsor
- Taif University
Vitamin B12 Deficiency, Renal Failure , Chronic
Oral Versus Intravenous Vitamin B12 Replacement in Hemodialysis Patients
The goal of this clinical trial is to learn whether intravenous (IV) vitamin B12 works better than oral vitamin B12 to correct vitamin B12 deficiency in adults on maintenance hemodialysis.
- Conditions
- Vitamin B12 Deficiency, Renal Failure , Chronic, Renal Dialysis
- Trial name
- B12-HD-RCT (NCT07781020)
- Testing
- Mecobalamin IV Injection, Mecobalamin Tablets
- Where
- Pakistan
- Volunteers
- 60 people
- Sponsor
- Jinnah Hospital
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