Active clinical trials for "Vitamin D Deficiency"

Safety, Efficacy, PK and PD of CTAP101 (calcifediol) ER Capsules for SHPT in HD Patients VDI

A comparison between resistive exercise and high intensity interval trainig on calcium and vitamin d in premenopausal women.

This is a multicenter randomized, placebo-controlled trial of Vitamin D supplementation in patients on peritoneal dialysis to determine whether oral administration of vitamin D3 after curing an episode of peritonitis could reduce the risk of subsequent peritoneal dialysis-related peritonitis.

The goal of this double-blind, randomized controlled trial is to test the effect of short-term and high-dose vitamin D therapy in patients undergoing hepatectomy for hepatocellular carcinoma.

Many studies have pointed out that patients with vitamin D deficiency have a longer stay in the intensive care unit and a poor prognosis. The investigators' previous multi-center prospective observational study in Taiwan reveals that the prevalence of vitamin D deficiency in critically ill patients in northern Taiwan is 59%, and the prevalence of severe vitamin D deficiency is 18%. The investigators used the data of that observational study to train a predictive model for predicting vitamin D deficiency. In addition, the association between vitamin D and the immune regulation of critically ill patients in Taiwan has not been investigated. This study aims primarily to validate the performance of the prediction model of vitamin D deficiency. Moreover, this study will investigate the association between vitamin D level and inflammatory cytokine levels. This multi-center prospective observational study will enroll critically ill patients admitted to intensive care units (ICUs) less than 28 days. After inform consent, blood will be drawn for examination of vitamin D, interleukin 6, and interleukin 10 levels. The main diagnosis of ICU admission, past medical history, vital signs within 24 hours of admission, disease severity, and laboratory data will be recorded. The predictive model will use the required parameters to predict the patient's risk of vitamin D deficiency and vitamin D severe deficiency.

Rotator cuff injuries are the most common cause of shoulder disability and is increasingly more prevalent in the aging population. Rotator cuff repair has long been the mainstay of treatment for symptomatic full-thickness tears and medium to large partial thickness tears that do no improve with nonoperative therapies. Approximately 32% of the US population is Vitamin D deficient. This is important for many health reasons, but specifically, Vitamin D has been found to play a critical role in bone mineralization and fracture healing/prevention. There is emerging data to support Vitamin D's role in regulating the inflammatory response throughout the body, which includes soft tissue (i.e. tendons) healing. The role of Vitamin D in tendon to bone healing has yet to be fully investigated, yet it is reasonable to conclude that normal blood levels of Vitamin D would optimize the setting for healing in rotator cuff repair. The investigators hypothesize that Vitamin D deficient patients undergoing shoulder rotator cuff repair will experience more positive outcomes and decreased complications when supplemented with Vitamin D3, compared to Vitamin D deficient patients who do not receive supplementation. The objective of this study is to demonstrate the positive effect of Vitamin D3 in rotator cuff repair healing and patient reported outcomes in patients who are Vitamin D deficient

The objective of this single-center prospective observational study is to clarify the trend of maternal serum 25(OH)D levels before pregnancy and during pregnancy, and to explore the correlation between serum 25(OH)D levels and subsequent pregnancy outcomes of patients with abortion, so as to provide certain scientific evidence for finding the optimal serum level of 25(OH)D and optimal vitamin D supplementation to maintain a healthy pregnancy.

Randomized double blind placebo controlled trial of vitamin D supplements, with or without calcium supplementation, versus placebo in reduction of recurrences in BPPV.

a study design based on vitamin D deficiency in postmenopausal women with low bone density. pre-test for BMD will be done then vitamin D oral supplements will be provided for the period of 3 months. Post-test of BMD will explore the results.

Vitamin D deficiency is one of the most underdiagnosed and undertreated medical condition worldwide . The microbiome and vitamin D deeply influence each other and the immune system in many different ways. It is evident that the immune system and the microbiome are interconnected, and that vitamin D is a critical intermediary player in this dynamic . Probiotics were shown to increase vitamin D intestinal absorption and increase vitamin D receptor protein expression and transcriptional activity . Likewise, vitamin D receptor status seems to be crucial in regulating the mechanisms of action of probiotics and modulating their anti-inflammatory, immunomodulatory and anti-infective benefits, suggesting a two-sided pathway . The objective of this study is to assess the different absorption of Vitamin D (Vit. D) between patients treated with Vit. D supplementation combined to a probiotic containing L. casei DG® and patients treated with Vitamin D supplementation and placebo