Trial reportSignal transduction and targeted therapy2026
Fulvestrant versus capecitabine as maintenance therapy in hormone receptor-positive, HER2-negative metastatic breast cancer after first-line chemotherapy (FAMILY): a multicenter, open-label, randomized, phase 3 trial.
Trial report in Signal transduction and targeted therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04263298 (A Randomized, Multi-center, Open-label, Phase III Trial of Fulvestrant Versus Capecitabine as Maintenance Therapy After First-line Chemotherapy in Patients With Hormone Receptor Positive, Human Epidermal Growth Factor Receptor-2 Negative Metastatic Breast Cancer), which is not on this map. Not yet cited in PubMed.
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A Randomized, Multi-center, Open-label, Phase III Trial of Fulvestrant Versus Capecitabine as Maintenance Therapy After First-line Chemotherapy in Patients With Hormone Receptor Positive, Human Epidermal Growth Factor Receptor-2 Negative Metastatic Breast Cancer (FAMILY)
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33 authors.
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Abstract
Maintenance therapy is key in prolonging remission and improving quality of life for hormone receptor-positive (HR + ), HER-2 negative (HER2-) metastatic breast cancer (MBC), but optimal strategies remain debated. This multicenter, open-label, randomized phase 3 trial conducted across 22 hospitals in mainland China (ClinicalTrials.gov, NCT04263298; Chinadrugtrials.org.cn, ChiCTR-IIR-17014036) compared the efficacy and safety of fulvestrant versus capecitabine as maintenance therapy in HR + /HER2- MBC patients after achieving objective response or disease control following first-line chemotherapy. The primary end point was investigator-assessed progression-free survival (PFS). A total of 210 patients underwent randomization, with 105 assigned to each group. As of the data cutoff date on March 1, 2025, the median follow-up was 33.6 months (range 1.5-81.1). Median PFS favored fulvestrant compared with capecitabine (17.3 months [95% CI 12.7-23.3] vs. 9.0 months [95% CI 7.5-14.3]; hazard ratio 0.63, 95% CI 0.47-0.99; p = 0.003). Overall survival data were not yet mature. Grade ≥3 adverse events (AEs) occurred in three patients (2.9%) in the fulvestrant group and 11 (10.5%) in the capecitabine group. Treatment discontinuation due to AEs occurred in 0% and 7.6% of patients, respectively. Fulvestrant maintenance therapy significantly improves PFS compared to capecitabine in HR + /HER2- MBC patients achieving objective response or disease control following first-line chemotherapy, with a favorable safety profile.
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