Active clinical trials for "Osteoporosis"

RATIONALE: Measuring bone mineral density may help doctors predict whether prostate cancer will come back. It may also help the study of prostate cancer in the future. PURPOSE: This clinical trial is studying whether bone mineral density affects cancer recurrence in patients with early stage prostate cancer.

Physical activity in adolescents is an important part of bone health. Good bone health in adolescents can decrease the risk of osteoporosis. This study will evaluate a program designed to increase the level of physical activity in adolescent girls.

Osteopenia and osteoporosis are increasingly reported in HIV-infected patients, and appear to be more frequent than in general population. However, pathogenesis remains unclear, and published studies still give non concordant results. We therefore started a prospective study, to assess the potential role of ARV in the occurrence of osteopenia and osteoporosis. BMD evolution over a 2-years period of follow-up, will be compared between patients starting ARV therapy, and subjects without HAART (no indication of treatment). A correlation between BMD and several factors will be looked at (see below). This study with individual direct benefice, is conducted in 3 outpatients clinics (Strasbourg, Colmar, Mulhouse) in collaboration with the rheumatologic teams. 60 patients are planned to be included over a 3-years inclusion period

To determine the effects of sleep disorders on cardiovascular function and disease in older men.

In this study researchers would like to learn more about the low levels of bone mineral density seen in approximately half of women in their forties diagnosed as currently having or previously had depression. Bones are always undergoing a process of building (formation) and breakdown (resorption). This process is referred to as bone remodeling. When more bone is formed than resorbed, the density (level of calcium) in bone increases and the bones become stronger. However, if more bone is resorbed than formed the density of bone decreases and the bones become weak. This condition is called osteoporosis. It is unknown if women with depression have decreased bone mineral density as a result of too much breakdown of bone or not enough building. It is important to know the cause of low bone mineral density because it will influence the way a patient is treated. Medications like bisphosphonates are used when there is too much bone breakdown. Growth hormone replacement can be given in cases where there is not enough bone production. Presently, bone biopsy and a procedure known as histomorphometry can determine what processes are going on in bones. Researchers have decided to use a sample of bone (biopsy) from part of the hip bone (iliac crest). In addition, researchers will collect a sample of bone marrow (the soft tissue found in the center of bones) to tell them more about the biochemical, cellular, and molecular processes that may be contributing to the problem of decreased bone density in depressed premenopausal women.

The major goal of this study will be to conduct a randomized, double-blind, placebo-controlled, clinical trial of intermittent high-dose vitamin D3 supplementation (180,000IU) given at the point of care (every 3 months) after initiation of ART with tenofovir/ lamivudine/ efavirenz to compare its ability to mitigate reductions in bone mineral density over 12 months compared to placebo.

The study aims at investigating whether the natural calcium isotope ratio (δ44/40Ca) in urine and serum differs between postmenopausal women aged 50 to 75 years suffering from osteoporosis and a healthy control group and whether δ44/40Ca in urine and serum can be used for the diagnosis of osteoporosis or whether further parameters have to be included.

Prolonged glucocorticoid therapy affects bone fragility, cardiovascular health, glucidic and lipidic metabolism, thyroid and brain function. Glucocorticoid-induced osteoporosis is characterized by low bone turnover and fractures, which occur in 30-50% of patients. Glucocorticoids affect predominantly cancellous or trabecular bone, increasing the risk of vertebral fractures, which may be asymptomatic and occur early during the first months of glucocorticoid treatment. Genistein exerts biological effects by several potential mechanisms. Besides protective effects on bone loss, genistein reduces cardiovascular risk markers, improves endothelial function and ameliorates glucose and lipid metabolism. This study is aimed at demonstrating genistein efficacy in glucocorticoid-induced osteoporosis in a cohort of caucasian post-menopausal women.

Osteosarcopenia designates the simultaneous presence of sarcopenia and osteopenia; both chronic conditions of advanced age. Dynamic-resistance exercise (DRT) might be the most powerful agent to fight osteosarcopenia. Indeed, in the present FrOST study, we clearly determine the positive effect of slightly adapted 18 month high-intensity (HIT)-DRT on bone mineral density (BMD), sarcopenia and other health related parameters in osteosarcopenic men. However, after a short training break, COVID-19 induced lock down prevented a re-start of the HIT resistance exercise training in the FrOST cohort. The aim of the present observational study is thus to determine the effects of 6 months of deconditioning on health related parameters under special regard of osteosarcopenia in this cohort of older men with osteosarcopenia.

Osteoporosis is a condition where bones become weak and fragile and can easily break. Suffering from one fragility fracture doubles your chance of having another. These fractures can affect a person's life significantly and contribute to significant costs to the UK (United Kingdom) health service. Bisphosphonates are used to treat osteoporosis and help prevent fractures. The most commonly used bisphosphonate treatment is Alendronate, but taking it correctly is complicated and side-effects are common. Therefore only 1 in 4 people continue with Alendronate beyond 2 years. There are different forms of bisphosphonates that can be given in different ways and frequencies and may be more acceptable and tolerated by patients. The study will look at how effective different bisphosphonate regimens are compared to Alendronate at preventing fractures, whether the reduction in fracture risk can be achieved at reasonable financial cost and establish acceptability of different approaches to patients. The study will be completed in 2 stages, Stage 1A and Stage 1B in parallel, followed by Stage 2. Stage 1A will update a systematic review to inform which regimens are most effective at reducing fractures and provide the best value for money. Stage 1B will consist of qualitative, semi-structured interviews from a sample of stakeholders in receipt of or involved in the delivery of different bisphosphonate regimens, in order to identify which bisphosphonate regimens are most acceptable to patients and the barriers to effective compliance and adherence. Stage 2 will use focus groups and workshops with stakeholders and commissioners to discuss uncertainties from Stage 1 and identify the most important outstanding questions for future research.