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Vitamin D Deficiency clinical trials

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NCT ID: NCT03920150 Completed - Clinical trials for Vitamin D Deficiency

Vitamin D 24'000 IU for Oral Intermittent Supplementation

DO-IT
Start date: September 30, 2019
Phase: Phase 3
Study type: Interventional

Vitamin D deficiency (defined as 25(OH)-vitamin D serum level <50 nmol/l) is cured with oral supplementation. National guidelines recommend the administration of 800 IU cholecalciferol daily for an effective treatment, especially during the winter (poor sun exposition). Cumulative intermittent administration monthly (24'000 IU) or weekly (5'600 IU) is possible. Commercially available intermittent pharmaceutical forms in Switzerland are liquid (oily or alcoholic solution). The study aims to compare the rise of vitamin D3 levels after treatment between newly developed soft capsules and monthly solution (primary outcome), and to evaluate the effect of a loading dose (without infringing the cumulative maximal dose of 4'000 IU per day) on the achievement of optimal values >75 nmol/l (secondary outcome). The investigators will use newly developed soft capsules and alcoholic solution, which are commercially available in Switzerland.

NCT ID: NCT03919812 Completed - Tuberculosis Clinical Trials

Immunomodulatory Vitamin D in Thalassemia

ThalTB
Start date: April 1, 2018
Phase: N/A
Study type: Interventional

Thalassemia becomes one of global health issue and so does Indonesia. In 2015, more than 7600 children were diagnosed as this hemoglobin genetic disease wherein anemia and lifetime blood transfusion contribute to their morbidity and mortality in Indonesia. Major β-Thalassemia is the most common type found. However, along with disease progression and age, iron accumulation and dysregulation becomes the most common complication exist. In cellular level, this condition results in cell and tissue damage especially immune cells and promotes favor condition for siderophilic bacteria such as Mycobaterium tuberculosis (Mtb) to growth rapidly. Severe infection becomes the second most cause of death in thalassemia-β major patients. Tuberculosis (Tb) remains the global health issue especially in developing countries. Based on World Health Organization (WHO) report on 2015, Indonesia is the second highest burden of TB in the world. Both of adaptive and innate immune system plays important role in Mtb recognition and eradication. However, immune cells mechanism and activity in response to Mtb infection during iron accumulation condition on thalassemia-β major patients may be altered therefore need for further study. Macrophage is an adaptive immune cell, has a pivotal role on circulating-iron regulation and serves as Mtb host cell. To understand macrophage activity on thalassemia-β major patients can be studied by monocyte characteristic stimulated by Mtb antigen and evaluated by its differentiation into three subsets based on CD14 and CD16. Mtb antigen presentation is identified by HLA-DR expression on monocyte membrane. Vitamin D is one of the most affected micronutrients on major β-thalassemia patients, yet it has immunomodulatory effect on immune system. Recent finding of vitamin D receptor (VDR) expressed in monocyte strongly convince that vitamin D should be maintained in major β-thalassemia patients where it is found lower in these patients. Thus, this original and true report aimed to declare that the research activity has finished and the data has been elaborated. Future plan is developing the original article based on the research finding corroborating the previous knowledge and innovative suggestion for the quality of thalassemia.

NCT ID: NCT03894735 Completed - Clinical trials for Vitamin D Deficiency

Vitamin D in Ectopic Pregnancies

Start date: October 1, 2015
Phase:
Study type: Observational

According to recent evidences, vitamin D was found to have important roles in female reproductive system, both in physiological and also pathological mechanisms. Since vitamin D is tightly related with calcium metabolism, both molecules were reported to be associated with some pregnancy complications including preeclampsia, gestational diabetes, low birth weight, preterm delivery, and cesarean section rates. The aim of the present study was to evaluate the vitamin D levels in ectopic pregnancies, which may have clinical importance in the etiology of this disorder.

NCT ID: NCT03890458 Completed - Infertility Clinical Trials

The Effect of Vitamin D on Fertility

Start date: May 1, 2017
Phase: Phase 4
Study type: Interventional

Objective: To examine the effect of vitamin D supplements on the pregnancy and clinical pregnancy rate in embryo transfer cycles. Design: Experimental study with a pre- and post-test. Setting: In Vitro Fertilization Center Patients: Its sample consisted of 118 women, 58 in the experimental group and 60 in the control group. Intervention(s): At the beginning of the infertility treatment, the experimental group took vitamin D supplements, and the control group did not. Vitamin D supplementation for infertile women includes regulation of a diet rich in vitamin D, educational and motivational interviews about insolation, and taking vitamin D orally. Main Outcome Measure(s): 25(OH)D and beta HCG levels

NCT ID: NCT03882099 Recruiting - Clinical trials for Vitamin D Deficiency

Vitamin D Level and Its Relation to Pre-eclampsia and Eclampsia

Start date: March 17, 2019
Phase:
Study type: Observational

To compare 25(OH)D level in patients with pre-eclampsia, eclampsia and normotensive pregnant women as well as to study the prevalence of Vitamin D deficiency among the 3 groups.

NCT ID: NCT03876704 Recruiting - Sepsis Clinical Trials

Effects of Fat-soluble Vitamins Supplementation on Common Complications and Neural Development in Very Low Birth Weight Infants

Start date: January 29, 2019
Phase: Phase 3
Study type: Interventional

Vitamins A, D, and E play important roles in humans, such as vision function, immune function, bone metabolism, cell growth and differentiation and oxidation resistance. Deficiencies in these vitamins will result in a high prevalence of cardiovascular disease, infection, bone diseases, etc. Preterm infants, especially very low birth weight infants, are at risk of vitamin deficiency. Intravenous perfusion is the most common and widely used method to supply vitamins for the specific population in early life. However, the current dose of vitamin supplied by intravenous perfusion whether can meet the need of growth and development is not sure and the appropriate dose for preterm infants is still uncertain. The purpose of this study is to investigate whether current dose of fat-soluble vitamin supplementation is enough for very low birth weight infants, the safety of high dose of fat-soluble vitamin supplementation, and compare the differences of prevalence of common complications, such as bronchopulmonary dysplasia, patent ductus arteriosus, sepsis, anemia, and neural development between these two groups.

NCT ID: NCT03873935 Completed - Clinical trials for Vitamin D Deficiency

Vitamin D in Periodontal and Cardiovascular Disease Progression

Start date: January 2, 2015
Phase:
Study type: Observational

Vitamin D has been considered to possess anti-inflammatory and antimicrobial activity which may be a link for the known interaction of periodontitis (CP) and coronary heart disease (CHD). This study investigated the association between serum vitamin D levels and periodontitis in patients with CP and with CHD. Furthermore, the objective was to determine if periodontitis and CHD had an impact on serum vitamin D levels.

NCT ID: NCT03871868 Completed - Clinical trials for Vitamin D Deficiency

Vitamin D Levels And Myoma Uteri

Start date: December 1, 2018
Phase:
Study type: Observational

Women with at least one uterine leiomyoma and polycystic ovary syndrome over 10 mm and women with normal ultrasonographic findings were included in the study. Blood samples were taken for biochemical analysis such as vitamin D, calcium, magnesium, phosphorus, thyroid stimulating hormone (TSH), hemoglobin (hb), hematocrit (htc), platelet (plt), and albumin. The study groups were compared in terms of these biochemical markers and family history of patients, daily sunshine hours, clothing preferences and education level.

NCT ID: NCT03829943 Recruiting - Clinical trials for Vitamin D Deficiency

Vitamin D and Human Sperm DNA Fragmentation

Start date: March 21, 2019
Phase:
Study type: Observational

The purpose of this study will be to investigate if there is a correlation between Vitamin D levels and Sperm DNA Fragmentation. This is a prospective, cohort study. In this study male participants presenting with their partners because of inability to conceive will be recruited for this study. Participants will have a blood sample drawn which will be tested for Vitamin D level. The investigators will then compare sperm DNA fragmentation between normal Vitamin D levels, Vitamin D insufficiency, and Vitamin D deficiency. All infertile males who present to the investigators' infertility clinic have a Semen analysis and Sperm chromatin Structure Assay (SCSA). The research part of the study will be to obtain the Vitamin D level.

NCT ID: NCT03820895 Completed - Clinical trials for Vitamin D Deficiency

Vitamin D Levels in Adolescent Idiopathic Scoliosis

Start date: October 1, 2016
Phase:
Study type: Observational

This study aims to estimate the prevalence of vitamin D insufficiency among patients with adolescent idiopathic scoliosis, to calculate the differences in serum vitamin D levels, Cobb angles, spinal bone mass densities, and serum alkaline phosphatase levels between genders in the sample, and to assess the possibility of a correlation between any of these factors in those surgical patients.