Active clinical trials for "Osteoporosis"

This two-year observational, open-label clinical trial will evaluate the efficacy of a once-yearly infusion of zoledronic acid after denosumab discontinuation to maintain tissue mineral density and bone microarchitecture using high-resolution peripheral quantitative computed tomography (HR-pQCT) among post-menopausal women with osteoporosis.

EuBone is prepared by mixing eucommia ulmoides extract, fructus ulmoides extract and dodder extract in proportion. The aim of this study is to evaluate the effectiveness and safety of EuBone® capsules in slowing bone loss, preventing bone loss, and improving quality of life compared with placebo in Postmenopausal women.

Proton pump inhibitors (PPIs) are widely used for the control of gastric ulcer-gastritis, erosive esophagitis (gastroesophageal reflux disease), peptic ulcer disease (duodenal ulcer), and heartburn. Despite their efficacy, their use has been implicated in possibly causing fragility fractures (osteoporosis), hypomagnesemia (magnesium deficiency) and increased risk of chronic kidney disease (CKD). The current trial represents the investigators ongoing effort to discern whether these complications could be averted by effervescent calcium magnesium citrate (EffCaMgCit).

This is an observational study of children and young adults ages 6-20 years with type 1 diabetes and age- and race-matched controls. The investigators will be examining blood and urine hormone levels as well as measures of bone density including DXA and high-resolution peripheral quantitiative computed tomography. The investigators will also be collecting data regarding physical activity via use of wearable accelerometers. The investigators hypothesize that youth with type 1 diabetes will have slower bone accrual and impaired bone microarchitectural integrity compared with non-diabetic controls, and that bones of individuals with type 1 diabetes will not respond as well to physical activity. The investigators hypothesize that poor bone accrual will be associated with sub-optimal glucose control as well as lower levels of insulin-like growth factor 1.

Aims: To determine whether BMD and muscle mass were associated with fractures and other adverse events in dialysis patients. To explore the effects of the interactions among FGF23, calcium, phosphate, PTH and vitamin D on low bone mineral density and sacropenia in dialysis patients. Method: In this study, the investigators plan to use DXA to screen for BMD, relevant novel bone microstructure parameters, and body composition in chronic dialysis patients. Also, the investigators plan to use blood testing to measure the blood level of FGF23, calcium, phosphate, PTH and vitamin D. The investigators conduct a prospectively follow up program for these participants to evaluate clinical courses and outcomes. Patients will receive DXA (including BMD and body composition) tests and blood work at baseline and one-year. Muscle power and physical performance will be measured at baseline, 6 months and one-year.

The recommended dosing regimen of zoledronic acid in Chinese osteoporosis patients is completely in accordance with the one of 5 mg per year abroad that based on the dosing regimen in Paget's disease. This dosing regimen lacks the actual supportive clinical data of Chinese patients. In addition, the overall incidence of acute phase response, the main adverse event after the first infusion, in Chinese patients is higher than that in Caucasian patients population. Moreover, the results of the similar drug clinical study in the Japanese patients shown that the purpose of effective treatment for osteoporosis could be achieved with half of the dosage in Caucasian population. Thus, it could be inferred from these that the dosing regimen of zoledronic acid might be inappropriate in Chinese osteoporosis patients. Therefore, the main purpose of this clinical trail is to compare the zoledronic acid pharmacokinetic and pharmacodynamic characteristic of different doses in Chinese postmenopausal subjects with low bone mass or osteoporosis and explore the best dosing regimen in Chinese patients.

The recent studies suggest that secretions from medullary adipocytes are involved in the mechanisms of bone loss in osteoporosis (OP) through their actions on neighbouring osteoforming cells, the osteoblasts. The objective of the research is the development of new cellular models representing the aging skeleton to confirm this hypothesis. To this end, osteoblasts will be isolated from human bone fragments coming from femoral heads discarded during total hip replacement surgery. The osteoblastic response to secreted factors released from medullary adipocytes of commercial origin will be analysed using conditioned media incubations. This phenotypic response will be quantified for each subject through the analysis of gene expression levels. Inter-subject phenotype variations will be related to bone density and microarchitecture data obtained by X-ray microtomography. This will assess the existence of a correlation between the osteoblast response to adipocyte secretions and the degree of osteoporosis of the subject from whom the cells are derived.

People with Alzheimer's disease are at an increased risk of bone fracture. Some studies have shown that those taking donepezil have a lower rate of bone fractures, but the reasons for this are unknown. The purpose of this study is to measure the effect of donepezil treatment on bone metabolism factors including bone mineral density, bone turnover markers, and bone quality. Participants in this study will have a bone density test and have blood samples collected at the baseline study visit. Participants will then be randomly assigned to donepezil or matching placebo to be taken daily by mouth for 12 months. Blood samples will be collected at 6 and 12 months. A repeat bone density test will be performed at 12 months. Participants will also complete questionnaires at each study visit.

This is a randomized study to determine the effects of monthly romosozumab for one year or one-time zoledronic acid on bone mineral density (BMD) and biochemical markers of bone formation and resorption, in patients with spinal cord injury (SCI) and low BMD.

This study will provide objective evidence for the efficiency and safety of minodronate in the treatment of postmenopausal osteoporosis with low back pain protocol. Furthermore, it will be helpful to evaluate the quantitative relationship between bone metabolic markers (BTM) and bone mineral density (BMD) in patients with osteoporosis under different ages.