Forteo for the Treatment of Unexplained Osteoporosis in Premenopausal Women
Idiopathic osteoporosis (IOP) is an uncommon disorder in which otherwise healthy young individuals sustain one or more low-trauma fractures. Teriparatide [PTH(1-34)], which is FDA approved for treatment of osteoporosis in men and postmenopausal women, works by stimulating bone formation. We hypothesize that teriparatide will significantly increase bone density (BMD) and improve bone structure in premenopausal women with IOP.
Idiopathic osteoporosis (IOP) is an uncommon disorder in which otherwise healthy young individuals sustain one or more low-trauma fractures. In our studies of IOP in men, histomorphometric indices of bone formation are depressed, and affected men respond to PTH(1-34) with robust increases in lumbar spine (LS) bone mineral density (BMD). We are now beginning the third year of an R01 (AR4989603) investigating the etiology and pathogenesis, as well as the histomorphometric and bone microarchitectural features of IOP in premenopausal women. We have found evidence of markedly decreased bone formation and microarchitectural deterioration with decreased mechanical competence/strength.
Teriparatide [PTH(1-34)] is an anabolic agent that stimulates bone formation and improves bone microarchitecture. Based upon our findings, we hypothesize that teriparatide will significantly increase BMD and improve microarchitecture in premenopausal women with IOP.
We will test this hypothesis in an open-label study of carefully characterized premenopausal women with IOP who are participating in our NIH-funded study and who have fragility fractures or very low bone density. Participants in the study will receive 18 months of teriparatide and the effects on BMD and microstructure, bone mechanical competence, and bone turnover will be assessed. In order to assess whether teriparatide stimulates bone formation to the same extent in women with IOP as it does in normal women, we will compare the short-term changes (2 and 4 weeks) in biochemical markers of bone formation in response to teriparatide between women with IOP and normal women who are participating in our NIH-funded study as controls.
Allocation: Non-Randomized, Control: Active Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Teriparatide (PTH 1-34), Teriparatide (PTH 1-34)
Columbia University Medical Center
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT00697463
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
A polypeptide that consists of the 1-34 amino-acid fragment of human PARATHYROID HORMONE, the biologically active N-terminal region. The acetate form is given by intravenous infusion in the differential diagnosis of HYPOPARATHYROIDISM and PSEUDOHYPOPARATHYROIDISM. (Reynolds JEF(Ed): Martindale: The Extra Pharmacopoeia (electronic version). Micromedex, Inc, Englewood, CO, 1995)
The period before MENOPAUSE. In premenopausal women, the climacteric transition from full sexual maturity to cessation of ovarian cycle takes place between the age of late thirty and early fifty.
The primary purpose of this study is to help answer the following research questions: 1. How teriparatide given using a skin patch (transferred through the skin using the ViaDerm T...
The purpose of this study is to compare treatment with both teriparatide and raloxifene with teriparatide alone. The study will evaluate any side effects that may be associated with the t...
To evaluate the efficacy of teriparatide based on measurements of bone mineral density at lumbar spine
The purpose of this study is to assess the effects of zoledronic acid administered at the same time with teriparatide compared to zoledronic acid alone and teriparatide alone on bone mine...
The purpose of this study is to assess the Efficacy and Safety of Teriparatide in Japanese Postmenopausal Women with Osteoporosis.
Teriparatide (human PTH 1-34) transiently stimulate both bone formation and bone resorption and subsequently bone formation markers increased. The changes in bone turnover markers 24 h after each inje...
Daily subcutaneous injection of teriparatide, which consists of 34 amino acids of N-terminal of parathyroid hormone, has been investigated as a therapy for osteoporosis. It has been used since 2010 in...
Abstract Objective We aimed to evaluate the surrogacy of bone mineral density and bone turnover markers for incident vertebral fracture using data from 237 patients treated with once-weekly 56.5 µg t...
Once-weekly administration of 56.5 μg teriparatide improved cortical bone parameters and biomechanical parameters at the proximal femur by CT geometry analysis.
Adherence and persistence with osteoporosis treatments are essential for reducing fracture risk. Once-daily teriparatide is available in Japan for treating osteoporosis in patients with a high risk of...