View clinical trials related to Osteoporosis.
Filter by:The purpose of this study is to determine whether dietary phytoestrogens are an effective alternative to postmenopausal exogenous estrogen replacement therapy in preventing bone loss.
OBJECTIVES: I. Determine the effects of alendronate sodium on skeletal remodeling and bone mineral density of the hip and spine in children with high-turnover idiopathic juvenile osteoporosis.
OBJECTIVES: I. Compare whether the bone tissue in the spine and hip improves in patients with adult onset growth hormone deficiency treated with growth hormone (GH) vs placebo. II. Determine whether the blood samples of these patients show evidence of beneficial bone effects after treatment with GH. III. Compare the quality of life of these patients treated with these 2 regimens. IV. Determine the side effects of GH in these patients.
Vitamin D deficiency is common in the elderly and contributes to the increased incidence of falls, hip fracture and depression in this population. An unknown number of elderly have vitamin D resistance resulting in a functional vitamin D deficiency state. Because there are no simple procedures or blood tests that identify vitamin D resistance, its prevalence and contribution to disability in the elderly is unknown. Our inability to screen for this condition precludes our ability to initiate and monitor treatment. Previous studies indicate that fingernail thickness correlates with vitamin D status and may therefore provide a simple cost effective procedure to not only identify patients with vitamin D deficiency but also, those with vitamin D resistance. This procedure may also provide a way to monitor an individual's response to treatment. This study is designed to demonstrate the association between fingernail thickness and vitamin D status.
The purpose of this study is to determine whether women with major depression lose bone mass at a faster rate than women without depression. This study will also determine if the drug alendronate can maintain or increase bone mass in premenopausal women with major depression and osteoporosis. Depression may be a major risk factor for osteoporosis; it is associated with abnormally elevated stress hormone levels that may contribute to bone loss. This study will evaluate bone mass in women with depression and healthy volunteers. Participants will undergo psychiatric, medical, dietary, and stress hormone evaluations and bone mineral density (BMD) measurements. Participants with depression will be divided into two groups: those with normal BMD and those with low BMD. Depressed participants with normal BMD will be compared to a control group of healthy premenopausal women with normal BMD and followed for 36 months. Dual energy X-ray absorptiometry (DEXA) determinations will be made at months 6, 12, 24 and 36; bone turnover and endocrine parameters of depression will be measured every 3 to 6 months. Participants with depression and low BMD will be randomly assigned to receive either alendronate or placebo (an inactive pill) once a week for 24 months. Participants will receive calcium and vitamin D supplements daily. DEXA determinations will be performed at screening, and at Months 6, 12, 18 and 24; bone turnover and endocrine parameters of depression will be measured every 3 to 6 months. For both groups, up to four of the visits may optimally be done as inpatient stays of two nights. All remaining visits are as outpatients.
OBJECTIVES: I. Determine the frequency and severity of osteopenia and osteoporosis in patients with thalassemia major who undergo dual energy x-ray absorptiometry, and correlate these findings with other relevant endocrinologic measurements.
RATIONALE: Tamoxifen may be able to increase bone density and decrease cholesterol in women who are undergoing chemotherapy for breast cancer. PURPOSE: Clinical trial to study the effectiveness of tamoxifen in preventing bone loss and heart disease caused by chemotherapy treatment in premenopausal women who have stage I or stage II breast cancer.
OBJECTIVES: I. Determine the possible causes of bone loss in premenopausal or perimenopausal women.
This study investigates the effectiveness of parathyroid hormone (PTH) in combination with alendronate, a standard treatment for osteoporosis that blocks or reduces bone loss. We are using alendronate because it may help protect patients against any possible harmful effects of PTH in cortical bone such as the long bones or hip. We are testing two different treatment schedules of PTH-one in which we give PTH daily and one in which we give PTH for 3 out of every 6 months in a cyclical fashion. The entire study is 21 months long; the active treatment period is 18 months with a 6-month followup period. The main effects we will look for in this study are changes in body chemicals that are signs of bone formation or bone breakdown, and changes in bone density throughout the skeleton. We will randomly assign all study participants, who are women aged 50 and over, to either stay on alendronate alone, receive daily continuous PTH plus alendronate, or receive daily PTH for 3 months out of every 6 for a total of three separate 3-month cycles of PTH plus daily alendronate.
This 2-year study will test the effectiveness of combining parathyroid hormone (PTH) and alendronate for treating osteoporosis in postmenopausal women. Alendronate is a drug used to treat osteoporosis and primarily prevents bone loss, whereas PTH increases bone formation. We will treat the study participants either with PTH and alendronate, alendronate alone, or PTH alone. We will determine the effects of these treatments by looking for changes in bone mineral density in the hip and spine.