Fracture incidence after 3 years of aromatase inhibitor therapy

Autor: Maurice Audran, S. Abadie-Lacourtoisie, E. Legrand, S. Vinchon-Petit, Daniel Chappard, C. Lassalle, M. Georgin-Mege, M. Royer, C. Tuchais, Emmanuel Hoppé, E. Jadaud, P. Soulié, N. Mesgouez-Nebout, P. Cellier, Béatrice Bouvard
Přispěvatelé: Institut de Cancérologie de l'Ouest [Angers/Nantes] (UNICANCER/ICO), UNICANCER, Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), Groupe d'Études Remodelage Osseux et bioMatériaux (GEROM), Université d'Angers (UA)
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Annals of Oncology
Annals of Oncology, 2014, 25 (4), pp.843-847. ⟨10.1093/annonc/mdu008⟩
ISSN: 1569-8041
DOI: 10.1093/annonc/mdu008⟩
Popis: International audience; BACKGROUND: The purpose of this study was to describe the fracture incidence and bone mineral density (BMD) evolution in a large cohort of post-menopausal women with breast cancer after 3 years of aromatase inhibitor (AI) therapy.PATIENTS AND METHODS: A prospective, longitudinal study in real-life setting. Each woman had an extensive medical assessment, a biological evaluation, a BMD measurement, and systematic spinal X-rays at baseline and after 3 years of AI therapy. Women with osteoporosis at baseline (T-score < -2.5 and/or non-traumatic fracture history) were treated by oral weekly bisphosphonates.RESULTS: Among 497 women (mean age 63.8 ± 9.6 years) included in this study, 389 had a bone evaluation both at baseline and after 3 years of AI therapy: 267 women (mean age 61.2 ± 8.6) with no osteoporosis at baseline and 122 women (mean age 67.2 ± 9.1) with osteoporosis at baseline justifying a weekly oral bisphosphonate treatment. Women without bisphosphonates had a significant decrease in spine BMD (-3.5%, P < 0.01), neck BMD (-2.0%, P < 0.01), and total hip BMD (-2.1%, P < 0.01) over the 3 years but only 15 of them (5.6%) presented an incident vertebral or non-vertebral fracture. In osteoporotic women treated with bisphosphonates, spine and hip BMD were maintained at 3 years but 12 of them (9.8%) had an incident fracture. These fractured women were significantly older (74.1 ± 9.8 versus 66.5 ± 8.8) but also presented BMD loss during treatment suggesting poor adherence to bisphosphonate treatment.CONCLUSION: This real-life study confirmed that AIs induced moderate bone loss and low fracture incidence in post-menopausal women without initial osteoporosis. In women with baseline osteoporosis and AI therapy, oral bisphosphonates maintain BMD but were associated with a persistent fracture risk, particularly in older women.
Databáze: OpenAIRE