Clinical trials: Calcium Deficiency
Rickets
Study to Assess the Use of a Simple Lab Test to Screen for Rickets in Children
Some experts recommend that all breastfed babies receive supplemental vitamin D. The purpose of this study is to determine the rate of vitamin D use in breastfed babies, the recommendations of pediatricians regarding vitamin D…
- Trial name
- NCT00502866
- Where
- United States
- Volunteers
- 246 people, healthy volunteers welcome
- Sponsor
- Agency for Healthcare Research and Quality (AHRQ)
Osteoporosis, Vascular Calcification
Effect of Vitamin K on Age-Related Bone Loss and Vascular Calcification
The purpose of this study is to determine if supplemental vitamin K will reduce age-related bone loss in elderly men and women above that achieved by supplementation.
- Conditions
- Osteoporosis, Vascular Calcification, Inflammation
- Trial name
- NCT00183001
- Testing
- Vitamin K
- Where
- United States
- Volunteers
- 452 people, healthy volunteers welcome
- Sponsor
- National Institute on Aging (NIA)
Vitamin D Deficiency, Calcium
Resistive Exercise Versus HIIT on Calcium and Vitamin D
A comparison between resistive exercise and high intensity interval trainig on calcium and vitamin d in premenopausal women.
- Conditions
- Vitamin D Deficiency, Calcium, Premenopause
- Trial name
- NCT05795504
- Testing
- resistive exercise, high intensity interval training, calcium and vitamin D
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Cairo University
Chronic Kidney Disease Mineral and Bone Disorder
Phosphorus Absorption in Healthy Adults and in Patients With Moderate Chronic Kidney Disease
Chronic kidney disease (CKD) affects approximately 26 million Americans with many more at risk for disease development. Elevated serum phosphorus (P) and related abnormalities in P homeostasis due to progressive loss of kidney…
- Trial name
- NCT03108222
- Testing
- Phosphorus Absorption Test
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Purdue University
Deficiency of Vitamin D3
Dietary Intake and Vitamin D Level in Adult Women
Vitamin D deficiency is most diagnosed among women living in the Kingdom of Saudi Arabia. Many factors have been attributed to the incidence of vitamin D deficiency.
- Trial name
- VDAW (NCT02921204)
- Testing
- Vitamin D status
- Volunteers
- 168 people, healthy volunteers welcome
- Sponsor
- Princess Nourah Bint Abdulrahman University
Osteomalacia
Serum FGF-23 and Vitamin D Deficiency
We aimed to determine the effect of vitamin D replacement therapy on serum FGF-23 concentrations in vitamin D deficient women and to compare the FGF-23 concentrations of vitamin D deficient patients with healthy subjects and…
- Trial name
- NCT01102751
- Where
- Turkey (Türkiye)
- Volunteers
- healthy volunteers welcome
- Sponsor
- Istanbul University
Hypophosphatemia, Familial, Rickets
Hypophosphatemic Rickets in Norway
The purpose of the study is to do a follow-up survey of all individuals with hereditary hypophosphatemia in Norway, focusing on manifestations in childhood and adolescence.
- Conditions
- Hypophosphatemia, Familial, Rickets, Hyperphosphatemia
- Trial name
- NCT01057186
- Testing
- Alfacalcidol; phosphate., Sevelamer
- Where
- Norway
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Haukeland University Hospital
Vitamin D Deficiency, Osseointegration Failure of Dental Implant
Vitamin-D Insufficiency and Implants
Vitamin D is important for bone health, immune function, and inflammation, along with dental implant success. The study aimed to assess bone markers and cytokine levels in patients with and without vitamin D insufficiency to…
- Conditions
- Vitamin D Deficiency, Osseointegration Failure of Dental Implant, Peri-Implantitis
- Trial name
- NCT06452251
- Testing
- OPG, OC, RANKL, IL-10, IL-1β, Ca, TNF-α and Caspase-1 ELISA, Resonance Frequency Analysis, Periodontal clinical examination
- Where
- Turkey (Türkiye)
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Vesile Elif Toy
Vitamin D Deficiency
Inter-relationship Between Vitamin D Requirements and Calcium Intake in Older Adults
This winter-based placebo-controlled, single-dose vitamin D randomized controlled trial (RCT) aims to examine the impact of various levels of habitual calcium intake on dietary vitamin D requirements in older adults stratified by…
- Trial name
- VitD-Ca (NCT01990872)
- Testing
- Vitamin D3 (20 micrograms/day)
- Where
- Ireland
- Volunteers
- 125 people, healthy volunteers welcome
- Sponsor
- University College Cork
Obesity, Vitamin Deficiency
Postoperative Vitamin Supplementation in Morbidly Obese Patient (VITAAL Study)
This study is a double blind randomized controlled trial.
- Trial name
- NCT01609387
- Testing
- Fit For me, Davitamon
- Where
- Netherlands
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Rijnstate Hospital
Pediatric Fractures, Hypovitaminosis D
Bone Outcomes, Obesity, Sunlight, and Trauma in Children
Prospective case-control study of children (3-15 years) after low-energy trauma. We compare serum bone metabolic markers (25OHD, PTH, ALP, calcium, phosphate), BMI/percentile, and dietary calcium intake between fracture and…
- Conditions
- Pediatric Fractures, Hypovitaminosis D, Obesity and Overweight
- Trial name
- BOOST (NCT07143552)
- Where
- 2 sites in Italy
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Paracelsus Medical University
Anemia, Iron Deficiency
Co-administration of Calcium and Multiple Micronutrient Supplements for Maternal and Newborn Hemoglobin and Iron Status
The World Health Organization (WHO) currently recommends the pregnant women receive iron-containing supplements and, in settings where calcium intake is low, calcium supplements.
- Trial name
- CaMMS (NCT06568315)
- Testing
- Concurrent multiple micronutrient and calcium supplementation, Separate multiple micronutrient and calcium supplementation
- Where
- 2 sites in Burkina Faso, Pakistan
- Volunteers
- 3,200 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins Bloomberg School of Public Health
Chronic Kidney Disease (Stage 3-4), Chronic Kidney Disease Mineral and Bone Disorder
Phosphate Assessment in Chronic Kidney Disease Patients Study
The proposed pilot feeding study aims to explore novel pathways in phosphate metabolism and identify new biomarkers, as well as to develop a compound index for assessing phosphate overload with high validity and reliability.
- Trial name
- PACK (NCT07368946)
- Testing
- Dietary Phosphorus Intake
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Nutritional Rickets
Vitamin D and Genetics in Nutritional Rickets
The purpose of this study is: 1. To compare the response of rickets to calcium with and without vitamin D. 2. To assess whether vitamin D increases calcium absorption in calcium deficiency rickets. 3.
- Trial name
- NCT00949832
- Testing
- Vitamin D + Calcium, Calcium, Vitamin D2
- Where
- Nigeria
- Volunteers
- 109 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Early Childhood Caries, Vitamin D Deficiency
Vitamin D Status With Early Childhood Caries
Studies that give people vitamin D supplements to prevent caries have found that vitamin D is effective at preventing the development of caries.
- Trial name
- NCT03521492
- Testing
- serum vitamin D , calcium , parathyroid hormone and albumin level
- Where
- Saudi Arabia
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ministry of Health, Saudi Arabia
Renal Insufficiency, Chronic, Renal Osteodystrophy
Kidney Yin/Yang Replenishment on Patients With Renal Osteodystrophy
Patients with serious chronic renal insufficiency usually develop secondary osteoporosis or bone loss, especially those with chronic dialysis, and the degree of bone loss is corrected with decrease of renal function.
- Trial name
- NCT01665651
- Testing
- Yougui granules, Zuogui granules
- Where
- 3 sites in China
- Volunteers
- healthy volunteers welcome
- Sponsor
- Bing Shu
Vitamin D Deficiency
Treatment of Vitamin D Insufficiency
The purpose of this study is to answer the following questions: Does vitamin D increase calcium absorption, bone mass and muscle mass and function in women past menopause who have mildly low vitamin D levels? Do these benefits…
- Trial name
- NCT00933244
- Testing
- High Dose Vitamin D3, Low Dose Vitamin D3
- Where
- United States
- Volunteers
- 230 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Osteogenesis Imperfecta, Rare Bone Disorders
Morphology in Oral Rare Syndromes & Artificial Intelligence for Clinical Diagnosis
MOSAIC aims to determine whether oro-dental morphological anomalies, particularly palatal morphology, associated with rare bone and cartilage diseases can be precisely characterized using 3D digital models analysed through…
- Conditions
- Osteogenesis Imperfecta, Rare Bone Disorders, Hypophosphatemia, X-Linked
- Trial name
- MOSAIC (NCT07666269)
- Testing
- intra-oral 3D optical impression
- Where
- France
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- University Hospital, Bordeaux
Vitamin D Deficiency, Osteoporosis
Vitamin D Deficiency in Elderly African American Women in Central Texas
In order to make bone health a reality for older adults, we need to consider the prevalence of Vitamin D deficiency in relation to environment latitude as well as vitamin D supplementation.
- Conditions
- Vitamin D Deficiency, Osteoporosis, Osteopenia
- Trial name
- NCT01971411
- Testing
- Calcium 500mg with 200 IU Vitamin D - 2 tablets daily, Blood levels of Vitamin D, Serum CTX, Mg, Ca++ and iPTH, Usual sun exposure documentation
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- McLennan County Medical Education and Research Foundation
Asthma, Vitamin D Resistant Rickets
Assessment Of Vitamin D Role In The Pathogenesis Of Asthma In Vitamin D Resistent Patients
Research Title: Evaluation of airway reactivity, allergy and inflammatory mediators in exhaled breath condensate in vitamin D resistant rickets.
- Trial name
- NCT01578824
- Testing
- Methacholine Challenge Test
- Where
- Israel
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Rambam Health Care Campus