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Hypovitaminosis D clinical trials

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NCT ID: NCT06138249 Recruiting - Hypovitaminosis D Clinical Trials

Cholecalciferol and Calcifediol Are Both Useful to Improve Vitamin D Serum Levels

VITD
Start date: July 1, 2023
Phase: N/A
Study type: Interventional

Patients with hypovitaminosis D are randomized into three arms of treatment: Group A: Calcifediol 0,266mg each month Group B: Cholecalciferol 25000UI each 15 days Group C: Calcifediol 4 drops per day. Serum levels of vitamin D are dosed after one month of treatment

NCT ID: NCT06115356 Completed - Obesity Clinical Trials

Hypovitaminosis D and "Metabolic" Inflammatory Status in Patients With Obesity

ViDO
Start date: January 1, 2018
Phase:
Study type: Observational

Since obesity is related to systemic chronic inflammatory status and hypovitaminosis D, the study aimed to assess the incidence of hypovitaminosis D in obese patients and the correlations between vitamin D levels, inflammation indices, and bioimpedance measures. A retrospective study was conducted on a cohort of obese patients. The inflammation-based prognostic scores, diagnosis of liver fibrosis, systemic inflammatory indices, and bioimpedance measures were analyzed. The linear relationship between vitamin D levels and continuous variables was assessed through the Spearman correlation coefficient, and to determine significant predictors of vitamin D levels a stepwise multiple linear regression was used.

NCT ID: NCT05957692 Completed - Hypovitaminosis D Clinical Trials

Vitamin D and Adipose Tissue: a Complex Relationship

ADIPOVITAD
Start date: January 1, 2020
Phase:
Study type: Observational

The goal of this observational study is to verify the role of adipose tissue in determining the vitamin D serum level after monthly oral administration in subjects with vitamin D deficiency. The main questions it aims to answer are: - Adipose tissue represents a storage environment for vitamin D or it's an environment where vitamin D is sequestered and no longer released - On the other hands, it's possible to verify whether the adipose tissue carries out a bi-modal activity towards vitamin D - If adipose tissue exerts a bi-modal effect, it is possible to identify a specific threshold between the two effects Participants will undergo anthropometric measurements (height, weight, waist/hip ratio waist circumference) at baseline and after 6 months of intake of cholecalciferol 50,000 IU/month

NCT ID: NCT05425914 Completed - Dry Eye Syndromes Clinical Trials

Impact of Vitamin D3 Supplementation in Non-Sjogren Dry Eye Patients With Low Serum Vitamin D Level

Start date: November 1, 2021
Phase: Phase 3
Study type: Interventional

Dry eye disease is multifactorial, ocular inflammatory condition causing irritation, stinging sensation, uneasiness and blurring. Non-Sjogren syndrome occurs due to absent or dysfunction of lacrimal gland. Fat soluble vitamin D act as an agent against inflammation and its deficiency may result in various inflammatory diseases including dry eye. Purpose of this study is evaluation of vitamin D3 supplementation role in treating non-Sjogren dry eye along with conventional treatment by using artificial tears in patients with hypovitaminosis D. A prospective study was conducted in Rural health center(RHC) Buchal Kalan on 108 patients presenting with non-Sjogren dry eyes and low serum vitamin D levels. Patients were subjected to the following examination; best corrected visual acuity (BCVA), slit-lamp examination, applanation tonometry, fundoscopy, tear breakup time (TBUT) after fluorescein staining, Schirmer tear test, numerical pain rating scale (NPRS) and ocular surface disease index (OSDI) score on day 0, 15, 30, 60 and 90. Vitamin D levels was assessed by electrochemiluminescence immunoassay (ECLIA) based analyzer. The sample was randomly divided into two groups by non-probability purposive sampling. Group 1 received only artificial tears 4times/day while group 2 were given oral vitamin D3 supplementation of 6000 international unit (IU) daily along with artificial tears. Impact of oral vitamin D3 supplementation on non-Sjogren dry eyes was assessed by comparing means of ocular parameters of both groups over different period of time by using Mann-Whitney Test and Friedman Test.

NCT ID: NCT05376865 Completed - Overweight Clinical Trials

Effects of Vitamin D Supplementation on Obesity, Inflammatory and Metabolic Markers

Start date: September 29, 2021
Phase: N/A
Study type: Interventional

46 eligible overweight women with hypovitaminosis D are assigned to either vitamin D or control group using block randomization method. Vitamin D3 pearl (Zahravi Pharma Co, Tabriz, Iran) containing 50000 IU cholecalciferol or placebo are administered weekly for 12 weeks. Participants in both groups are structured to hold their sun exposure and physical activity habits and not take any vitamin supplements during the study.

NCT ID: NCT05372224 Completed - Menopause Clinical Trials

Effect of Vitamin D and Denosumab on Bone Remodelling in Women With Postmenopausal Osteoporosis

Start date: June 22, 2020
Phase: N/A
Study type: Interventional

Denosumab is a monoclonal antibody against RANKL ligand, which is used as an alternative treatment for osteoporosis in patients who have a poor response to first-line antiresorptive therapy. However, discontinuation of denosumab produces a rapid increase in bone turnover, bone loss and potentially increased risk of multiple vertebral fractures.

NCT ID: NCT05347082 Completed - Clinical trials for Postmenopausal Osteoporosis

Frequency of Hyperparathyroidism in Postmenopausal Osteoporosis and Its Treatment

Start date: April 29, 2021
Phase: N/A
Study type: Interventional

Recently, an increase in the prevalence of hyperparathyroidism and hypovitaminosis D in postmenopause women has been occurring in Mexico and the world. Chronic exposure to the parathyroid hormone (PTH) is catabolic for the bone, worsening the state of osteoporosis. However, it is unclear whether these conditions could significantly improve bone mineral density (BMD). In the present work, it was shown that the resolution of hyperparathyroidism in postmenopausal women improves osteoporosis.

NCT ID: NCT05346419 Completed - Clinical trials for Postmenopausal Osteoporosis

Antiresorptive Effect of Treatment With Risedronate and Vitamin D in Postmenopausal Patients

Start date: July 1, 2021
Phase: N/A
Study type: Interventional

Osteoporosis is defined as a systemic disease of bone mineralization, characterized by a decrease in bone mineral density that causes bone fragility and increases the risk of fractures during menopause. Recently, a high prevalence of hypovitaminosis D has been found worldwide, which could trigger a state of secondary hyperparathyroidism that can worsen the state of postmenopausal patients with osteoporosis. An open-label, clinical trial was conducted in Mexican women with postmenopausal osteopenia-osteoporosis to determine the efficacy of the combined treatment with risedronate and high-dose vitamin D in improving bone mineral density, hyperparathyroidism, and hypovitaminosis D.

NCT ID: NCT05306704 Completed - HIV-1-infection Clinical Trials

High-Dose Vitamin D3 Supplementation in the Treatment of Human Immune Deficiency Virus Patients Trial

HDVDS-HIVT
Start date: February 15, 2019
Phase: Phase 3
Study type: Interventional

High-Dose Vitamin D3 in the Treatment of Human Immune Deficiency Virus Patients, A Double-Blind Randomized Control Trial Human immunodeficiency virus is a key challenge for global health. Vitamin D deficiency is common in people living with HIV infection. Antiretroviral therapy may create unique risk factors for vitamin D insufficiency, including alterations of vitamin D metabolism by ART.

NCT ID: NCT05214040 Not yet recruiting - Hypovitaminosis D Clinical Trials

Vitamin D Insufficiency inVestigation Among hospitaLizeD Inpatients

VIVALDI
Start date: September 2022
Phase:
Study type: Observational

Hypovitaminosis D is common in the adult population, it affects at least 1 billion people worldwide, and in particular 80% of the French population according to the National Institute for Public Health Surveillance. Hypovitaminosis D is accompanied or complicated by deleterious health manifestations such as bone, immune and cancer diseases, neuromuscular disorders and a propensity to fall, for example. Hypovitaminosis D has also been associated with more complicated care pathways (increase in the severity of the reason for hospitalization, length of hospitalization, risk of in-hospital death). Prevention of these clinical events depends on correcting vitamin D status. In sick, dependent or fragile adults, natural intakes are generally insufficient. It is indeed accepted that hypovitaminosis D may not be treated effectively by dietary measures or by simple exposure to the sun in French latitudes. Drug supplementation is therefore necessary, with the objective of achieving a target concentration of circulating 25-hydroxyvitamin D (25 (OH) D) of 75 nmol / L (30 ng / mL) in this population. Vitamin D supplementation, when properly conducted, corrects hypovitaminosis D, and has been associated with improved prognosis, especially life-saving, in therapeutic trials versus placebo. Such results lead the investigators to suggest that the identification and correction of hypovitaminosis D in hospitalized patients could represent a simple, effective and inexpensive strategy for improving hospital care pathways. In this perspective, the first step is to determine the prevalence, severity and clinical profile of hospitalized patients with hypovitaminosis D, as well as their course of care. To the investigators knowledge, there are no large-scale studies based on real-life data on this subject.