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Clinical Trial Summary

In 2006, Weinberg proposed a hypothesis that iron accumulation was a risk factor for osteoporosis. Osteoporosis is a common complication in various diseases, such as hemochromatosis, African hemosiderosis, thalassemia, and sickle cell disease, which all share iron accumulation as a common denominator. Moreover, a 3-year retrospective longitudinal study has shown that iron accumulation was also associated with osteoporosis in healthy adults and especially that it can increase the risk of fractures in postmenopausal women. Based on these observations, iron chelation therapy may have a promising future in the treatment of iron accumulation-related osteoporosis by removing iron from the body.

The purpose of this study is to determine whether the addition of the iron chelator, deferasirox, to standard therapy for postmenopausal osteoporosis, is safe and effective.


Clinical Trial Description

Postmenopausal osteoporosis (PMOP) is a systemic bone metabolism disease, characterized by progressive bone loss following menopause and a subsequent increase in fracture risk. Estrogen deficiency as a result of menopause is known to increase bone resorption and accelerate bone loss. Furthermore, postmenopausal women may exhibit iron accumulation, in addition to estrogen deficiency. Elevated iron levels are a risk factor for PMOP in postmenopausal women, and reducing the iron overload by iron chelators has been demonstrated to benefit bone cell metabolism in vitro and improve the bone in vivo by normalizing osteoclastic bone resorption and formation.

Although the safety and efficacy of deferasirox have been evaluated in iron-overloaded patients extensively, there are no data in iron-accumulated postmenopausal women, let alone in iron-accumulated postmenopausal women with osteoporosis. Therefore, at the currently planned dose, confirming safety and efficacy is essential in the current study to lay the groundwork for a future phase III clinical trial.

This is a prospective, phase II, randomized, open label, placebo-controlled study of calcium-vitamin D3 plus deferasirox vs. calcium-vitamin D3 for postmenopausal osteoporosis. Ten postmenopausal women diagnosed with osteoporosis by DXA, who were accompanied by iron accumulation (serum 500ng/ml≤ferritin≤1000ng/ml), will be randomized to receive calcium-vitamin D3 plus deferasirox or calcium-vitamin D3 (n = 5 per arm).

The primary objective is to determine the safety and tolerability of adjunctive deferasirox therapy in postmenopausal women being treated with calcium-vitamin D3 for osteoporosis, and to obtain exploratory data on the efficacy of the iron chelation treatment. The reduction in iron levels with deferasirox may provide a viable therapeutic option for mitigating the iron accumulation associated with PMOP. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02854722
Study type Interventional
Source Second Affiliated Hospital of Soochow University
Contact You-Jia Xu, Ph.D,M.D.
Phone +86 512 67783746
Email xuyoujia@medmail.com.cn
Status Recruiting
Phase Phase 2
Start date January 15, 2018
Completion date June 15, 2020

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