Active clinical trials for "Osteoporosis"

This study will compare the effectiveness of denosumab treatment every 6 months with once yearly zoledronic acid treatment on bone mineral density (BMD) at various skeletal sites.

The purpose of this study is to determine how teriparatide or denosumab affects the bone of postmenopausal women with osteoporosis after 3 months of treatment, as determined by a bone biopsy sample taken from the iliac crest (upper part of the pelvis).

The purpose of this study is to determine whether consuming additional leucine during calorie restriction induced weight loss has beneficial or harmful effects on multi-organ (liver, muscle, adipose tissue) insulin sensitivity, colonocyte proliferation rates, the gut microbiome, muscle mass and function, and bone mineral density in obese, postmenopausal women.

In subjects with acute SCI: To compare the effects of parenteral zoledronic acid therapy on preservation of regional and total skeletal mass (DXA). Hypothesis: Zoledronic acid will dramatically diminish bone loss in persons with acute SCI, as evidenced by serial densitometry determinations (DXA).

The investigators are intending to perform a clinical study in healthy subjects on the pharmacokinetics of different doses of Hy.D Calcifediol compared to vitamin D3 (cholecalciferol) in order to gain insight into the dose response relationship and to assess kinetic differences including the steady state. The metabolites 1,25(OH)2D, 24,25(OH)2D will be assessed throughout the study to assess the metabolism of vitamin D vs. 25(OH)D. Vitamin D3 will be measured throughout the study to assess compliance with the restriction of exogenous vitamin D supplementation.

In a controlled, parallel, double-blind intervention study over 6 months, the investigators investigated the effects of kefir-fermented milk (1,600 mg/kg) supplemented with calcium bicarbonate (CaCO3, 1,500 mg/kg) and bone metabolism in 40 osteoporosis patients, and compared them with CaCO3 alone without kefir supplements. Bone turnover markers were measured in fasting blood samples collected before therapy and at 1, 3, and 6 months. BMD values at the spine, total hip, and hip femoral neck were assessed by dual-energy x-ray absorptiometry (DXA) at baseline and at 6 months.

The purpose of this study is to determine if a year of alendronate treatment will maintain or increase bone mass density (BMD) compared to baseline BMD values in people with chronic spinal cord injury (SCI). This study will also investigate 1) if alendronate therapy will increase bone strength in people with chronic SCI, 2) the number of participants with adverse events from alendronate, and 3) the effects of alendronate on serum markers of bone metabolism.

The study is a parallel-group single blinded randomized controlled trial, examining the effect of exercise on physical function in older women with osteoporosis and a history of vertebral fracture. The participants will randomly be assigned in a 1:1 ratio to the intervention group and the control group. The intervention will follow newly developed exercise recommendations for people with osteoporosis and vertebral fractures, which states the balance- and strength exercises should be performed at least twice a week. The intervention is a group exercise session circuit program lasting for 12 weeks. The participants will be tested at baseline, and followed up at 3 months and 6 months.

This study will compare the effect of denosumab produced by two different manufacturing processes on bone mineral density at the lumbar spine in postmenopausal women with osteoporosis.

Design: Open-label randomised multicenter international strategic trial of older women on combination antiretroviral therapy (cART) containing tenofovir-emtricitabine (TDF/FTC) with HIV RNA suppression for > 6 months to : 1. Immediate switch of TDF/FTC to tenofovir alafenamide-emtricitabine (TAF/FTC) while continuing the third antiretroviral agent.; 2. Delayed switch; with switch of TDF/FTC to TAF/FTC at 48 weeks while continuing the third agent. Follow up of all subjects to 96 weeks. Subject Population: The anticipated sample size is 128 HIV infected women aged 45-55 years (peri or early post menopause). . Primary endpoint: Percentage change from baseline bone mineral density (BMD) at the lumbar spine at weeks 48 and 96. Secondary Endpoints: BMD change at hip, trabecular bone score, estimated bone strength by high resolution peripheral quantitative computerized tomography (HR-pQCT), muscle quality, geriatric assessment; biomarkers of bone, immune activation and inflammation; HIV viral suppression; safety, lipid and renal function, cardiovascular risk scores at weeks 48 and 96. Expected Outcomes: To determine if a switch from TDF/FTC to TAF?FTC improves BMD to a degree correlating with a decreased risk of fragility fracture in aging HIV infected women. Secondary outcomes will assess bone strength using new imaging modalities, timing of switch, and renal health. This data will be used by health policy makers and providers to determine the proper use of TAF/FTC in the aging HIV population.