Active clinical trials for "Osteoporosis"

Osteoporosis is a disease that leads to impaired skeletal strength and increased fracture risk. Among 200 million osteoporotic patients most are diagnosed only after several fractures. Furthermore, the progressively aging population will increase the prevalence of osteoporosis. It is estimated that over 75% of osteoporotic patients are not diagnosed and does not receive treatment for their condition. Bindex ultrasound device has been developed and validated in Caucasian female population. In this study, diagnostic thresholds for density index as determined with Bindex will be evaluated in two different ethnic populations.

Syndromes such as sarcopenia, sarcopenic obesity and osteosarcopenic obesity are commonly seen in older adults. They result from the impairment of muscle, bone and adipose tissue. Thus, they lead to a decrease in quality of life and increase morbidity and mortality. The aim of this study is to report the prevalence of sarcopenia, sarcopenic obesity and osteosarcopenic obesity in community-dwelling outpatient older adults and to investigate the related factors.

Evaluate the support of osteoporosis in women over 50 years with severe osteoporotic fractures (hip, vertebral, rib, Humeral, pelvic fractures) in the Nîmes University Hospital taking prediction of treatment of osteoporosis as criterion.

The purpose of this study is to evaluate the follow-up of the osteoporotic patient by a physician-pharmacist collaboration.

The purpose of this protocol is to determine the risk of atypical femoral shaft (thigh bone) fractures after long term fracture prevention therapy with a class of drugs called "bisphosphonates", colloquially referred to as Alendronate, risedronate, Ibandronate, and Zoledronate. In addition, the study is designed to find out which patient is most likely to develop this potential life changing complication and why. Finally, the results of this study will help clinicians to better understand the reason and thus tailor patient specific treatments…i.e., "the right treatment for the right patient for right duration."

The purpose of this study is to validate a revised food frequency questionnaire that is designed to capture vitamin D, calcium and protein intake in a population of elderly men and women with fragility fractures. Protein, calcium and protein intake will be correlated with biochemical measures and bone mineral density measured by DXA.

Low bone mass and osteoporosis are underdiagnosed in childhood in our environment and its prevalence is unknown. In most cases they are secondary to chronic diseases that conduct to a poor bone health condition and thereby a risk of fracture increased. The aim of this study is to identify patients with risk factors for low bone mass and determine their Bone Mineral Density (amount of bone) by performing bone densitometry and compared with healthy population of the same characteristics. Also the investigators want to evaluate bone quality by application of Trabecular Bone Score to images obtained by densitometry. As secondary objectives the investigators intend to correlate the data with with clinical variables to identify the most important in bone health clinical factors. In addition to measuring bone quality and quantity demographic and clinical process related to bone quality base and variables will be collected.

The incidence of osteoporosis has been increasing, as have fractures resulting from falls.

In Switzerland, the prevalence of vertebral fractures in community- dwelling women is unknown and the published data from the Swiss hospitals statistics represent only the tip of the iceberg. In addition, the percentages of women correctly identified with vertebral fractures due to osteoporosis and the treatment rate of these women with a drug proven to reduce the risk of further fractures are unknown. Furthermore, it is not known whether the prevalence of vertebral fractures differs between urban and rural areas or between mountain areas and plain country, e.g. due to possible differences in sun exposure (vitamin D production) and/ or in physical activity and/ or dietary habits. Clinical signs and symptoms leading to the suspicion of vertebral fracture(s) lack either sensitivity (wall-occiput distance) or specificity (rib-pelvis distance). Whether a combination of both would improve sensitivity and specificity is unknown. The gold standard for the diagnosis of vertebral fracture relies on antero-posterior and lateral X-Rays of the thoracic and lumbar spine. Despite standardization of X-Ray readings, a retrospective study of hospitalized elderly patients has shown that as many as 50% of the radiographic reports failed to note the presence of moderate to severe vertebral fractures. In a primary care setting, fewer than 2% of the women received diagnoses of osteoporosis or vertebral fracture, although expected prevalence is 20% to 30% and appropriate drug treatment was offered to only 36% of the diagnosed patients. The recent availability of software for vertebral fracture assessment (VFA) coupled to DXA measurements allows for the detection of vertebral deformities, which is critical for management of osteoporosis, as the existence of such deformities substantially increases the risk of subsequent fracture. Recently published results show that VFA allows the diagnosis of a vertebral fracture. The sensitivity of VFA for detection of vertebral fractures compared to expert radiologist reading of X-ray is excellent for grade 2 and 3 fractures, ranging between 90-94%.

Patients who have received the appropriate number of years of alendronate or risedronate therapy will be recruited. Each patient will have received baseline BMD measurements performed at the spine and the hip by DXA. Each patient will receive tetracycline to label the bone and then have a transiliac bone biopsy. One year later teh bone label and biopsy procedure will be repeated.