Single-Injection Depot Progesterone Before Surgery and Survival in Women With Operable Breast Cancer: A Randomized Controlled Trial
Single-Injection Depot Progesterone Before Surgery and Survival in Women With Operable Breast Cancer: A Randomized Controlled Trial
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DOI:
10.1200/jco.2010.33.0738
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发表时间:
2011-07-20
影响因子:
45.3
通讯作者:
Mittra, Indraneel
中科院分区:
文献类型:
--
作者:
Badwe, Rajendra;Hawaldar, Rohini;Mittra, Indraneel
PurposeMany nonrandomized studies have suggested better outcome for patients with breast cancer who undergo surgery during the luteal (progestogenic) phase of their menstrual cycle, but this is controversial. We investigated the effect of a single preoperative injection of hydroxyprogesterone in women with operable breast cancer (OBC) in a randomized controlled trial (ClinicalTrials.gov identifier, NCT00123669).Patients and MethodsOne thousand patients with OBC were randomly assigned to receive surgery or an intramuscular injection of depot hydroxyprogesterone 500 mg 5 to 14 days before surgery. Primary and secondary end points were disease-free survival (DFS) and overall survival (OS), respectively. An analysis by axillary lymph node status was preplanned.ResultsAt a median follow-up of 65 months among 976 eligible patients, 273 recurrences and 202 deaths were recorded. In the progesterone group versus control group, 5-year DFS and OS rates were 73.9% v 70.2% (hazard ratio [HR], 0.87; 95% CI, 0.68 to 1.09; P = .23) and 80.2% v 78.4% (HR, 0.92; 95% CI, 0.69 to 1.21; P = .53), respectively. In 471 node-positive patients, the 5-year DFS and OS rates in the progesterone group versus control group were 65.3% v 54.7% (HR, 0.72; 95% CI, 0.54 to 0.97; P = .02) and 75.7% v 66.8% (HR, 0.70; 95% CI, 0.49 to 0.99; P = .04), respectively. In multivariate analysis, DFS was significantly improved with progesterone in node-positive patients (adjusted HR, 0.71; 95% CI, 0.53 to 0.95; P = .02), whereas there was no significant effect in node-negative patients (P for interaction = .04).ConclusionA single injection of hydroxyprogesterone before surgery did not improve outcomes in all women with OBC. This intervention showed significant improvement in node-positive women that may be considered hypothesis generating. If replicated in other studies, this could be a simple and inexpensive intervention, especially in developing countries where the incidence of lymph node metastasis is high. J Clin Oncol 29: 2845-2851. (C) 2011 by American Society of Clinical Oncology