Clinical trials: Vitamin D
Diabetes Mellitus, Type 2
Thiazolidinedione Intervention With Vitamin D Evaluation
This study will answer two separate questions. The first question is to test the cardiovascular effects of long-term treatment with rosiglitazone or pioglitazone when used as part of standard of care compared to similar standard…
- Trial name
- TIDE (NCT00879970)
- Testing
- pioglitazone, rosiglitazone, Vitamin D
- Where
- 331 sites in United States, Argentina and 23 more
- Volunteers
- 1,332 people
- Sponsor
- GlaxoSmithKline
Chronic Kidney Disease stage3, Chronic Kidney Disease stage4
Phase 3 Safety and Efficacy Study of CTAP101 Extended-release Capsules in Children With Secondary Hyperparathyroidism
This is a phase 3, multi-center, randomized, double-blind, placebo-controlled study in children with stage 3-4 chronic kidney disease (CKD), secondary hyperparathyroidism (SHPT) and vitamin D insufficiency.
- Conditions
- Chronic Kidney Disease stage3, Chronic Kidney Disease stage4, Vitamin d Deficiency, Secondary Hyperparathyroidism
- Trial name
- NCT05543928
- Testing
- CTAP101
- Where
- 2 sites in United States
- Volunteers
- 2 people
- Sponsor
- OPKO Health, Inc.
CKD Stage 3, CKD Stage 4
Pharmacokinetics, Pharmacodynamics, Safety and Tolerability Evaluation of CTAP101 Extended-release Capsules in Pediatric Participants
The goal of this clinical trial is to evaluate safety, tolerability, and how CTAP101 Capsules work to treat Pediatric Participants with Secondary Hyperparathyroidism, Stage 3 or 4 Chronic Kidney Disease and Vitamin D…
- Conditions
- CKD Stage 3, CKD Stage 4, Secondary Hyperparathyroidism, VDI
- Trial name
- NCT07494045
- Testing
- CTAP101
- Where
- 5 sites in United States
- Volunteers
- 40 people
- Sponsor
- OPKO Health, Inc.
Secondary Hyperparathyroidism, End Stage Renal Disease
A Study to Follow-up Patients With End Stage Renal Disease Undergoing Hemodialysis, Receiving Selective Vitamin D Receptor Activator's for Prevention and Treatment of Secondary Hyperparathyroidism
The aim of this post-marketing observational study is to obtain further data on the long term use, safety and efficacy of selective Vitamin D Receptor Activator's as it is prescribed in the normal clinical setting and according…
- Trial name
- NCT01149291
- Where
- 22 sites in Turkey (Türkiye)
- Volunteers
- 511 people
- Sponsor
- AbbVie (prior sponsor, Abbott)
Osteoporosis
A Study to Test the Effect of MK0217A on Vitamin D Inadequacy in Postmenopausal Women With Osteoporosis (0217A-262)
A study designed to see if the study drug will increase blood levels of vitamin D, bone mineral density (BMD), improve biochemical markers of bone turnover, and reduce the number of falls as compared to women receiving standard…
- Trial name
- NCT00692913
- Testing
- FOSAVANCE 5600 (Alendronate Sodium (+) cholecalciferol), Calcium Supplement 500 mg, Referred-Care Model
- Volunteers
- 515 people
- Sponsor
- Organon and Co
Quality of Life, Pain
QOL, ADL and Pain Before and After Intervention With N3 From Krill With D3.
The aim of this project is investigation of patients' with chronic pain self-rated quality of life, ADL function and level of pain before and after 3 months of intervention with N-3 fatty acids from krill in combination with…
- Trial name
- NCT02008760
- Testing
- Omega Krill with D3
- Where
- Denmark
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Hospitalet Valdemar
Selective Eating, Emotional Dysregulation
Unflavored Powdered Multivitamin in Children
The goal of this clinical trial is to learn whether a daily unflavored powdered multivitamin (EllaOla Kids Essentials) improves mood and behavior in children aged 4 to 11 who are picky eaters and experience behavioral challenges.
- Conditions
- Selective Eating, Emotional Dysregulation, Child Behavior, Healthy Children (Wellness Study)
- Trial name
- BLOSSOM (NCT07863050)
- Testing
- EllaOla Kids Essentials Unflavored Powdered Multivitamin
- Volunteers
- 166 people, healthy volunteers welcome
- Sponsor
- EllaOla
Diabetes Mellitus, Vitamin D Deficiency
Effect of Vitamin D Supplementation on Hemoglobin A1c
This is a prospective, randomized, non-blinded interventional study that will investigate the effect of a vitamin D supplement on HbA1c in patients with uncontrolled type 2 diabetes mellitus (DM) and vitamin D deficiency.
- Trial name
- NCT01354262
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 150 people
- Sponsor
- Ascension Health
Osteoporosis
Pharmacokinetics of Calcifediol and Cholecalciferol
The investigators are intending to perform a clinical study in healthy subjects on the pharmacokinetics of different doses of Hy.D Calcifediol compared to vitamin D3 (cholecalciferol) in order to gain insight into the dose…
- Trial name
- NCT02333682
- Testing
- 25(OH)D3 (Calcifediol Hy.D) 10 mcg, 25(OH)D3 (Calcifediol Hy.D) 15 mcg, 25(OH)D3 (Calcifediol Hy.D) 20 mcg
- Volunteers
- 93 people, healthy volunteers welcome
- Sponsor
- dsm-firmenich Switzerland AG
Diabetic Nephropathy, Chronic Kidney Disease
The Effect of Paricalcitol Capsules on Reducing Albuminuria in Patients With Type 2 Diabetic Nephropathy Being Treated With Renin-angiotensin System Inhibitors
The study objective was to evaluate the safety of paricalcitol capsules and the efficacy of paricalcitol capsules for albuminuria reduction in patients with Chronic Kidney Disease (CKD) who have Type 2 diabetic nephropathy and…
- Trial name
- VITAL (NCT00421733)
- Testing
- Zemplar (paricalcitol ) capsules, Zemplar (paricalcitol) capsules
- Where
- 72 sites in United States, Germany and 8 more
- Volunteers
- 281 people
- Sponsor
- Abbott
Hypophosphatasia (HPP)
A Retrospective Study of the Natural History of Patients With Severe Perinatal and Infantile Hypophosphatasia (HPP)
This study aims to characterize the natural history of patients with severe perinatal or infantile onset HPP.
- Trial name
- NCT01419028
- Where
- 12 sites in United States, Australia and 5 more
- Volunteers
- 48 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
Osteopenia
Study to Investigate if Adding Lactulose to Vitamin D and Calcium Has an Effect on the Preservation of Bone in Postmenopausal Women
This is a randomized, double-blind, multicentre, parallel pilot clinical trial to study the efficacy of a treatment of lactulose 15 ml + vitamin D 400 U + calcium 0.5 g compared to lactulose placebo 15 ml + vitamin D 400 U +…
- Trial name
- NCT00160264
- Testing
- Lactulose, Vitamin D, Calcium
- Where
- 3 sites in Spain
- Volunteers
- 40 people
- Sponsor
- Solvay Pharmaceuticals
Bioavailability of Vitamin D
Comparison of Bioavailability of Liposomal and Traditional Formulation of Vitamin D3
The aim of the study was to compare the profiles of 25-hydroxyvitamin D serum concentration in healthy adults after 4 weeks of using vitamin D supplementation either in a liposomal or a traditional formulation.
- Trial name
- NCT06010121
- Testing
- Liposomal Vitamin D, Traditional Vitamin D
- Where
- Poland
- Volunteers
- 27 people
- Sponsor
- AronPharma Sp. z o. o.
Osteoporosis, Vitamin D Deficiency
A Study of MK0217A and Dietary Supplement in Men and Postmenopausal Women With Osteoporosis (0217A-227)
The purpose of this study is to test the safety, tolerability, and effectiveness of an investigational drug and dietary supplement to reduce the risk of vitamin D insufficiency and deficiency during treatment of osteoporosis in…
- Trial name
- NCT00092079
- Testing
- MK0217A, alendronate sodium (+) cholecalciferol / Duration of Treatment: 24 weeks
- Volunteers
- 652 people
- Sponsor
- Merck Sharp & Dohme LLC
Nutrition, Healthy
Standard Process Heart and Gut Health Study
Standard Process Heart and Gut Health Study
- Trial name
- NCT05795946
- Testing
- Whole food-based B and D vitamins
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Standard Process Inc.
Healthy Volunteer
Supplementation Absorption Comparison
The goal of this interventional study is to compare the absorption of supplements with and without absorption enhancing technology in healthy volunteers.
- Trial name
- PHAABS (NCT07791797)
- Testing
- Aquacelle® Omega 3, Comparator Omega 3, Plexosome® Vitamin D3
- Where
- Australia
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- RDC Clinical Pty Ltd
Healthy Adult, Cognitive Measures
Multivitamin Intervention and Cognitive Function
The purpose of this trial is to learn how a multivitamin combined blueberry polyphenol supplement (Vitals+) influences cognitive function in healthy adults.
- Trial name
- NCT06795789
- Testing
- Vitals+ (combined multivitamin and polyphenol supplement)
- Where
- 2 sites in United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Braincare Limited
Osteoporosis
Double-blind Extension of HORIZON Pivotal Fracture Trial (Zoledronic Acid in the Treatment of Postmenopausal Osteoporosis)
This extension study is designed to assess the long term safety and efficacy of zoledronic acid in postmenopausal women with osteoporosis who have participated in the CZOL446H2301 (NCT00049829): HORIZON Pivotal Fracture Trial.
- Trial name
- NCT00145327
- Testing
- Zoledronic Acid
- Where
- 31 sites in United States, Germany
- Volunteers
- 2,456 people
- Sponsor
- Novartis
Bone Health
Physiological and Dietary Characteristics of Boys and Girls High School Basketball Players
In a population of boys and girls high school basketball players, the primary objectives are to assess 1) bone mineral density and vitamin D status, and 2) energy intake and dietary quality.
- Trial name
- NCT05658159
- Testing
- Vitamin D, DXA scan, Nutrition analysis
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- PepsiCo Global R&D
Secondary Hyperparathyroidism, Renal Failure
Study of Safety and Efficacy of Doxercalciferol in Patients With Chronic Kidney Disease, Stage 3 or 4, and Secondary Hyperparathyroidism
The purpose of this study is to demonstrate the safety and effectiveness of Hectorol® (doxercalciferol) capsules in treating patients with Stage 3 or Stage 4 chronic kidney disease (CKD) with secondary hyperparathyroidism who…
- Conditions
- Secondary Hyperparathyroidism, Renal Failure, Chronic Renal Insufficiency
- Trial name
- NCT00123461
- Testing
- Hectorol (doxercalciferol capsules), 0.5mcg
- Where
- 19 sites in United States, Puerto Rico
- Volunteers
- 70 people
- Sponsor
- Genzyme, a Sanofi Company