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D’Hondt, V.; Canon, J.-L.; ROCA, L.; Levy, C.; Pierga, J.-Y.; Du, F Le; Campone, M.; Desmoulins, I.; Viens, P.; Debled, M.; Ferrero, J.-M.; Serin, D.; Bessard, A -C Hardy; Brain, E.; Dohollou, N.; Orfeuvre, H.; Lemonnier, J.; Roche, H.; Delaloge, S.; Dalenc, F.
Annals of oncology, October 2019, Letnik: 30Journal Article
Long term information on the risk/benefit ratio of currently available therapies remains crucial for treatment decisions. In the PACS04 phase III trial, patients (pts) with node-positive (N+) breast cancer (BC) were double-randomized to concomitant taxane-anthracycline versus standard FEC, as well as 1-year trastuzumab versus nill in the HER2+ subpopulation. 3009 pts (20% HER2+, 12% triple negative (TNBC) BC) were randomly assigned to receive 6 cycles of fluorouracil 500mg/m2, epirubicin 100mg/m2 and cyclophosphamide 500mg/m2 (FEC) or epirubicin 75mg/m2 and docetaxel 75mg/m2 (ED). Pts with HER2+ tumors were randomized to either trastuzumab (TRA) for one year, or observation (OBS). The primary endpoint was disease-free survival (DFS). After a median 115-month follow-up, DFS was not different in the ED compared to the FEC arm (70% vs 68% respectively, HR=0.88 95% CI: 0.77-1.01; p=0.064), nor was OS: 80% with FEC and 81% with ED (HR=0.97 95% CI: 0.81-1.16; p=0.729). Subgroup analysis suggested better DFS with ED in non-TNBC pts HR=0.82 (0.71-9.96) p=0.02. In the 528 pts with HER2+ BC, there was trend for a higher DFS in the TRA arm (68%; 95% CI: 61-74) versus the OBS arm (60%; 95% CI: 54-66); HR=0.77 95% CI:0.57-1.03; p=0.079 (intent to treat population). In the per protocol population, DFS, but not OS, was significantly higher in the TRA arm (HR: 0.69 95%CI: 0.51-0.94; p=0.0156). ED led to more neurological and hematological toxicities (31% vs 11% febrile neutropenia) and led to 5 versus 1 treatment-related deaths. During follow-up, 75 pts developed a second non-breast primary cancer (43 with FEC and 32 with ED); 12 were hematologic malignancies (7 with FEC and 5 with ED). Long term cardiac deaths were rare (3 with FEC and 1 with ED). This study did not show superiority of the concomitant anthracycline-taxane arm, which was more toxic in high-risk N+ BC pts. Long-term results of the HER2+ subpopulation are in line with the other adjuvant TRA trials but less striking probably due to lack of power. Long term cardiac toxicity and second primary cancer rate are similar to what has been reported by others. NCT00054587. UNICANCER. 101 rue Tolbiac, 75013 Paris, France. Roche, Ligue Nationale Contre le Cancer. All authors have declared no conflicts of interest.
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Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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