Salmon calcitonin (Miacalcic) nasal spray in prevention and treatment of osteoporosis

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Abstract
Calcitonin (CT) constitutes one of the major choices for the pharmacologic treatment of postmenopausal and senile osteoporosis. In postmenopausal osteoporosis, CT, analogous to estrogens, determines increase of bone mass, improvement of intestinal calcium absorption and a positivization of calcium balance. Patients treated with CT can also benefit from the analgesic effect of the hormone. Unlike estrogens, these beneficial effects of CT occur with minimal risk and require no routine gynecological monitoring. In addition, CT is completely devoid of toxicity. The only limitations to the use of CT are linked to the frequent parenteral injections and the occurrence of side effects. These limitations can now be overcome by the availability of the new nasal spray preparation, which has been developed for synthetic salmon calcitonin (sCT). The introduction of this new form increases the patients' compliance, and the different pharmacokinetic curtails the side effects, compared to the parenteral administration. At present, one-year controlled studies have been reported, showing a beneficial effect of sCT on bone mass in patients with established osteoporosis. Also, shorter studies demonstrate the analgesic activity of sCT treatment in patients with vertebral crush fractures and bone pain. The improvement in the patients' compliance and the reduction of side effects allow this new CT preparation to be used in the prevention of post-menopausal osteoporosis.