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Randomized trial of denosumab in patients receiving adjuvant aromatase inhibitors for nonmetastatic breast cancer.
Ellis, Georgiana K; Bone, Henry G; Chlebowski, Rowan; Paul, Devchand; Spadafora, Silvana; Smith, Judy; Fan, Michelle; Jun, Susie.
Afiliación
  • Ellis GK; Seattle Cancer Care Alliance, Seattle, WA 98109-1023, USA. gellis@u.washington.edu
J Clin Oncol ; 26(30): 4875-82, 2008 Oct 20.
Article en En | MEDLINE | ID: mdl-18725648
PURPOSE: Adjuvant aromatase inhibitor therapy is well established in postmenopausal women with hormone receptor-positive breast cancer, but such therapy is complicated by accelerated bone loss and increased fracture risk. We investigated the ability of denosumab, a fully human monoclonal antibody against receptor activator of nuclear factor-kappaB ligand, to protect against aromatase inhibitor-induced bone loss. PATIENTS AND METHODS: Eligible women with hormone receptor-positive nonmetastatic breast cancer treated with adjuvant aromatase inhibitor therapy were stratified by duration of aromatase inhibitor therapy (< or = 6 v > 6 months), received supplemental calcium and vitamin D, and were randomly assigned to receive placebo (n = 125) or subcutaneous denosumab 60 mg (n = 127) every 6 months. At enrollment, all patients were required to have evidence of low bone mass, excluding osteoporosis. The primary end point was percentage change from baseline at month 12 in lumbar spine bone mineral density (BMD). RESULTS: At 12 and 24 months, lumbar spine BMD increased by 5.5% and 7.6%, respectively, in the denosumab group versus placebo (P < .0001 at both time points). Increases were observed as early as 1 month and were not influenced by duration of aromatase inhibitor therapy. Increases in BMD were also observed at the total hip, total body, femoral neck, and the predominantly cortical one-third radius. Bone turnover markers decreased with denosumab treatment. Overall incidence of treatment-emergent adverse events (AEs) was similar between treatment groups. CONCLUSION: In women with nonmetastatic breast cancer and low bone mass who were receiving adjuvant aromatase inhibitor therapy, twice-yearly administration of denosumab led to significant increases in BMD over 24 months at trabecular and cortical bone, with overall AE rates similar to those of placebo.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Contexto en salud: 2_ODS3 Problema de salud: 2_muertes_prematuras_enfermedades_notrasmisibles Asunto principal: Osteoporosis / Neoplasias de la Mama / Densidad Ósea / Ligando RANK / Anticuerpos Monoclonales Tipo de estudio: Clinical_trials / Incidence_studies / Prognostic_studies Límite: Adult / Aged / Aged80 / Female / Humans / Middle aged Idioma: En Revista: J Clin Oncol Año: 2008 Tipo del documento: Article País de afiliación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Contexto en salud: 2_ODS3 Problema de salud: 2_muertes_prematuras_enfermedades_notrasmisibles Asunto principal: Osteoporosis / Neoplasias de la Mama / Densidad Ósea / Ligando RANK / Anticuerpos Monoclonales Tipo de estudio: Clinical_trials / Incidence_studies / Prognostic_studies Límite: Adult / Aged / Aged80 / Female / Humans / Middle aged Idioma: En Revista: J Clin Oncol Año: 2008 Tipo del documento: Article País de afiliación: Estados Unidos
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