Active clinical trials for "Osteoporosis"

The purpose of this study is to determine what effect teriparatide will have on vascular (blood vessel) compliance and osteoprotegerin (bone fluid)and RANKL levels (bone cells).

Increasing bone mass during puberty can ultimately decrease the risk of developing osteoporosis, which causes bones to weaken and break more easily later in life. The purpose of this study is to compare calcium absorption and bone growth in boys and girls on diets including either a nondigestible oligosaccharide (NDO) or simple sugar.

This is a single-blinded, one-treatment, combination dose escalation and pharmacokinetic study done in healthy volunteers. The investigators want to determine whether Parathyroid Hormone related Protein (1-36) [PTHrP(1-36)] shares anabolic properties with the only currently approved anabolic agent, parathyroid hormone(1-34) [PTH(1-34)], which stimulates both osteoblastic bone resorption and formation. In a previous study done by the investigators, postmenopausal osteoporotic women on estrogen received 6.56 mcg/kg PTHrP(1-36) subcutaneously for three months daily. They experiences a 4.7% increase in bone mineral density (BMD) of the lumbar spine when compared with those taking placebo. They also displayed an increase in serum osteocalcin, a marker of bone formation, with no change in several markers of bone resorption. It is believed that the rapid absorption and clearance of PTHrP(1-36) likely plays a central role in its anabolic effect In order to further assess absorption, we are combining both pharmacokinetic and dose escalation methods for studying intravenous PTHrP given via a one-time bolus injection. The purpose is to define the maximum safe dose and measure the pharmacokinetic parameters of a single intravenous dose of Parathyroid Hormone-related Protein (1-36)[PTHrP(1-36)]. The results will be useful in determining future treatment options for osteoporosis.

Osteoporosis affects nearly half of all American women over age 50. During the teenage years, girls can increase bone growth to decrease their risk of osteoporosis later in life. This study will test whether girls can change their food intake and physical activity patterns in ways that will increase their bone growth during the mid-teen years.

During the first year after a heart transplant, people often rapidly lose bone from their spine and hips. About 35 percent of people who receive heart transplants will suffer broken bones during the first year after transplantation. This study will compare the safety and effectiveness of the drug alendronate (Fosamax) and the active form of vitamin D (calcitriol) in preventing bone loss at the spine and hip after a heart transplant. In this study, people who have had a successful heart transplant will receive either active alendronate and a "dummy pill" instead of calcitriol, or active calcitriol and a dummy pill instead of alendronate for the first year after their transplant, starting within 1 month after transplant surgery. We will measure bone density in the hip and spine at the start of the study and after 6 and 12 months, and will also check for broken bones in the spine. This research should lead to ways of preventing this crippling form of osteoporosis.

To address cardiovascular disease, cancer, and osteoporosis, the most common causes of death, disability, and impaired quality of life in postmenopausal women. The three major components of the WHI are: a randomized controlled clinical trial of hormone replacement therapy (HRT), dietary modification (DM), and calcium/vitamin D supplementation (CaD); an observational study (OS); and a community prevention study (CPS). On October 1, 1997, administration of the WHI was transferred to the NHLBI where it is conducted as a consortium effort led by the NHLBI in cooperation with the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), the National Cancer Institute (NCI), and the National Institute on Aging (NIA).

This study aims to explore the association between RA and osteoporosis and highlight the risk factors that RA patients have that may cause or affect osteoporosis progress.

This is a post-marketing drug intensive monitoring surveillance with an observational, non-interventional design. The objectives are to compare the incidence of hypercalcemia in patients with and without calcium intake (including dietary supplements, excepting calcium from meals), and to monitor the type, incidence, severity, and relevance of other adverse drug reactions,including urolithiasis.

The aim of this observational study is to assess the obstacles and levers to the continuation of anti-osteoporotic treatment, and to identify those where action could be taken to improve the quality of care for fractured patients. The individual and collective stakes are high. Fracture is the most feared complication of osteoporosis. The current under-diagnosis and under-treatment of this chronic pathology exposes patients to a high risk of early re-fracture, with the associated morbidity and mortality. General practitioners have a major role to play in monitoring and coordinating patients' healthcare pathways. The aim of this study is to assess ways of improving osteoporosis management in order to improve quality of life and disability-free life expectancy for individual patients. The public health and economic stakes are equally high. It is by identifying the obstacles that prospective work on the key elements to be implemented could help optimize osteoporosis management.

Osteoporosis is a condition that describes compromised skeletal microarchitecture in general, with clinical signs of decreased bone mineral density. Rheumatoid arthritis patients are at increased risk for developing osteoporosis. It is crucial to identify whether rheumatoid arthritis patients know and know about this disease. This study investigates awareness and knowledge of osteoporosis in rheumatoid arthritis patients.