Clinical trials: Vitamin Deficiencies
Endothelial Dysfunction, Hyperhomocysteinemia
Effect of L-Arginine and Pycnogenol on Light to Moderate Hypertension and Endothelial Function
The effect of a combination product (Verum ) with L-arginine, Pycnogenol, vitamin K2, R-(+)-alpha-lipoic acid and vitamins B6, B12 and folic acid is investigated in a double blind placebo-controlled cross-over study.
- Conditions
- Endothelial Dysfunction, Hyperhomocysteinemia, Hypertension Grade I, Subgroup "Borderline" (WHO)
- Trial name
- NCT02392767
- Testing
- Verum
- Where
- Germany
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Dr. Loges & Co. GmbH
Rickets
Specturi Device - Feasibility Study
On a daily basis many (prematurely born) newborn are subjected to different urine collecting techniques to study biochemical abnormalities.
- Trial name
- NCT03105557
- Testing
- Urinary collecting device
- Where
- Netherlands
- Volunteers
- 20 people
- Sponsor
- Capturin Distribution B.V.
X-linked Hypophosphatemia (XLH)
Treatment Patterns, Biochemical Profiles and Clinical Outcomes in Adults With X-Linked Hypophosphatemia
The purpose of this study is to better understand how X-linked hypophosphatemia (XLH) affects the body and daily life. Phosphate levels are critical in managing XLH, we aim to study how these levels change in patients taking…
- Trial name
- IBIS XLH (NCT07607600)
- Testing
- No treatment given
- Where
- 23 sites in United States, Australia and 6 more
- Sponsor
- Novo Nordisk A/S
Retinal Disease, Age-Related Macular Degeneration
Stem Cell Ophthalmology Treatment Study II
This study will evaluate the use of autologous bone marrow derived stem cells (BMSC) for the treatment of retinal and optic nerve damage or disease.
- Conditions
- Retinal Disease, Age-Related Macular Degeneration, Retinitis Pigmentosa, Stargardt Disease
- Trial name
- SCOTS2 (NCT03011541)
- Testing
- Arm 1
- Where
- 4 sites in United States, Austria and 1 more
- Volunteers
- 500 people
- Sponsor
- MD Stem Cells
X-linked Hypophosphatemia, Hypophosphatemic Rickets
X-linked Hypophosphatemia Disease Monitoring Program
The objectives of this observational study are to characterize XLH disease presentation and progression and to assess long-term effectiveness and safety of burosumab.
- Trial name
- NCT03651505
- Testing
- No intervention
- Where
- 38 sites in United States, Argentina and 4 more
- Volunteers
- 782 people
- Sponsor
- Ultragenyx Pharmaceutical Inc
X-Linked Hypophosphatemia
Efficacy and Safety of Burosumab Versus Oral Phosphate and Active Vitamin D Treatment in Pediatric Patients With XLH
The primary objective of this study is to evaluate the effect of KRN23 (burosumab) therapy in improving rickets in children with XLH compared with active control (oral phosphate/active vitamin D).
- Trial name
- NCT02915705
- Testing
- burosumab, Oral Phosphate Supplement, active vitamin D
- Where
- 16 sites in United States, Australia and 5 more
- Volunteers
- 61 people
- Sponsor
- Kyowa Kirin, Inc.
Vitamin D Deficiency, Vitamin D Insufficiency
ALPCO 25(OH) Vitamin D CLIA Kit - Fresh Versus Frozen Serum and Plasma Stability Study
This study evaluates the stability of 25-hydroxyvitamin D [25(OH)D] measurements in human serum and plasma using the ALPCO 25(OH) Vitamin D CLIA Kit.
- Conditions
- Vitamin D Deficiency, Vitamin D Insufficiency, Healthy Volunteers
- Trial name
- NCT07565064
- Testing
- ALPCO 25(OH) Vitamin D CLIA Kit
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- American Laboratory Products Company
Intestinal Failure-associated Liver Disease
Prevalence of Liver Disease in Patients Dependent on Parenteral Nutrition
This is a multi-center prospective cross-sectional observational study that will assess the prevalence of liver disease in patients dependent on parenteral nutrition (PN) for 4 or more days per week.
- Trial name
- THRIVE-1 (NCT05011370)
- Where
- 15 sites in United States, Denmark and 2 more
- Volunteers
- 80 people
- Sponsor
- Protara Therapeutics
Hypophosphatasia (HPP)
Extension Study of Protocol ENB-006-09 - Study of Asfotase Alfa in Children With Hypophosphatasia (HPP)
This clinical trial studies the long term safety and efficacy of asfotase alfa in children with HPP who completed Study ENB-006-09 (NCT00952484).
- Trial name
- NCT01203826
- Testing
- Asfotase Alfa
- Where
- 2 sites in United States, Canada
- Volunteers
- 12 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
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.
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.
Calcium Deficiency, Vitamin D Deficiency
Human Pharmacology Trial of Calcium-vitamin D3 Tablet in Healthy Participants
The purpose of this study is to demonstrate that the intestinal absorption of calcium from a newly developed calcium carbonate-vitamin D3 chewable tablet formulation increases the amount of calcium excreted in urine and decreases…
- Trial name
- Osteopro (NCT01639222)
- Testing
- Calcium 500 mg and Vitamin D3 800 IU, Low calcium meals
- Where
- Germany
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Takeda
Hypophosphatasia
Extension Study of Protocol ENB-002-08 - Study of Asfotase Alfa in Infants and Young Children With Hypophosphatasia (HPP)
This clinical trial studied the long term safety and efficacy of asfotase alfa in infants and young children with infantile onset HPP who completed study ENB-002-08 (NCT00744042).
- Trial name
- NCT01205152
- Testing
- asfotase alfa
- Where
- 8 sites in United States, United Arab Emirates and 1 more
- Volunteers
- 10 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
Calcium and Vitamin D Deficiencies
Calcichew D3 Preference Study in Participants Eligible for Calcium and Vitamin D Supplementation.
The purpose of this study is to compare the preference of Calcichew D3 500/400 (containing 500 mg calcium and 400 IU of vitamin D) with Adcal-D3 600/400 (containing 600 mg of calcium and 400 IU of vitamin D) in Test Group 1, and…
- Trial name
- NCT02457247
- Testing
- Calcichew D3, Adcal-D3, Kalcipos-D
- Where
- 9 sites in Germany, United Kingdom
- Volunteers
- 276 people
- Sponsor
- Takeda
Hypophosphatasia
Safety and Efficacy Study of Asfotase Alfa in Adolescents and Adults With Hypophosphatasia (HPP)
This clinical trial was conducted to study hypophosphatasia (HPP), a bone disorder caused by gene mutations or changes. These gene mutations cause low levels of an enzyme needed to harden bone.
- Trial name
- NCT01163149
- Testing
- asfotase alfa
- Where
- 3 sites in United States, Canada
- Volunteers
- 19 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
Secondary Hyperparathyroidism
Open-label Study to Assess the Long-term Safety and Efficacy of Etelcalcetide (Also Known as AMG 416 or KAI-4169) in Patients With Secondary Hyperparathyroidism
The purpose of this study is to evaluate the long term safety and efficacy of thrice weekly intravenous (IV) administration of etelcalcetide in the treatment of secondary hyperparathyroidism (SHPT) in patients receiving…
- Trial name
- NCT01576146
- Testing
- Etelcalcetide
- Volunteers
- 30 people
- Sponsor
- KAI Pharmaceuticals
Asthma, Vitamin D Deficiency
Rapid vs Maintenance Vitamin D Supplementation in Deficient Children With Asthma to Prevent Exacerbations.
The role of vitamin D in respiratory health remains uncertain. Whether vitamin D reduces clinically important exacerbations of childhood asthma remains uncertain.
- Trial name
- NCT01395589
- Testing
- Vitamin D
- Where
- Qatar
- Volunteers
- 597 people, healthy volunteers welcome
- Sponsor
- Hamad Medical Corporation
End Stage Renal Disease, Hyperparathyroidism, Secondary
Mineral and Bone Disorders Outcomes in Stage 5D of Chronic Kidney Disease
The MBD-5D is a prospective observational study with a case-cohort and a cohort design. Eligible patients are receiving hemodialysis and have secondary hyperparathyroidism.
- Trial name
- MBD-5D (NCT00995163)
- Where
- Japan
- Volunteers
- 8,020 people
- Sponsor
- Kyowa Kirin Co., Ltd.
X-linked Hypophosphatemia (XLH)
Study to Assess the Safety, Pharmacokinetics and Efficacy of KRN23 in Pediatric Chinese Patients With XLH
The purpose of this study is to assess the safety, pharmacokinetics and efficacy of KRN23 in pediatric Chinese patients with XLH
- Trial name
- NCT04842032
- Testing
- KRN23
- Where
- 5 sites in China
- Volunteers
- 28 people
- Sponsor
- Kyowa Kirin Co., Ltd.