Randomized trial of adjuvant ovarian suppression in 926 premenopausal patients with early breast cancer treated with adjuvant chemotherapy
| Autor: | Jacques Bonneterre, R. Arriagada, Catherine Hill, L. Mauriac, M. Spielmann, Monique G. Lê, T. Delozier, T. Tursz, Moïse Namer |
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| Rok vydání: | 2005 |
| Předmět: |
Adult
medicine.medical_specialty Anthracycline Ovarian Ablation Breast Neoplasms Ovary Gastroenterology Breast cancer Risk Factors Internal medicine Multicenter trial medicine Humans Survival analysis Gynecology Triptorelin Pamoate Estradiol business.industry Carcinoma Ductal Breast Age Factors Hematology Middle Aged medicine.disease Survival Analysis Triptorelin Chemotherapy regimen Carcinoma Lobular Luteolytic Agents Treatment Outcome medicine.anatomical_structure Premenopause Receptors Estrogen Oncology Chemotherapy Adjuvant Lymphatic Metastasis Female Follicle Stimulating Hormone Neoplasm Recurrence Local business medicine.drug |
| Zdroj: | Annals of Oncology. 16:389-396 |
| ISSN: | 0923-7534 |
| Popis: | Purpose: The aim of this multicenter trial was to evaluate the role of ovarian suppression in patients with early breast cancer previously treated with local surgery and adjuvant chemotherapy. Patients and methods: Nine hundred and twenty-six premenopausal patients with completely resected breast cancer and either axillary node involvement or histological grade 2 or 3 tumors were randomized after surgery to adjuvant chemotherapy alone (control arm) or adjuvant chemotherapy plus ovarian suppression (ovarian suppression arm). Ovarian suppression was obtained by either radiation-induced ovarian ablation or triptorelin for 3 years. The analyses were performed with Cox models stratified by center. Results: Median follow-up was 9.5 years. Mean age was 43 years. Ninety per cent of patients had histologically proven positive axillary nodes, 63% positive hormonal receptors and 77% had received an anthracycline-based chemotherapy regimen. Ovarian suppression was by radiationinduced ovarian ablation (45% of patients) or with triptorelin (48%). At the time of randomization, all patients had regular menses or their follicle-stimulating hormone and estradiol levels indicated a premenopausal status. The 10-year disease-free survival rates were 49% [95% confidence interval (CI) 44% to 54%] in both arms (P = 0.51). The 10-year overall survival rates were 66% (95% CI 61% to 70%) for the ovarian suppression arm and 68% (95% CI 63% to 73%) for the control arm (P = 0.19). There were no variations in the treatment effect according to age, hormonal receptor status or ovarian suppression modality. However, in patients |
| Databáze: | OpenAIRE |
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