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- Title
The experience of a Romanian oncology department with bevacizumab (Bev) in the treatment of metastatic colorectal cancer.
- Authors
Dinu, Ioana; Gramaticu, Iulia; Luca, Ioana; Buica, Florina; Miron, Monica; Croitoru, Vlad; Cazacu, Irina; Bogdan, Diana; Alexandrescu, Sorin; Hrehoreţ, Doina; Boroş, Mirela; Lupescu, Ioana; Dima, Simona; Popescu, Irinel; Gheorghe, Liana; Diculescu, Mircea; Herlea, Vlad; Becheanu, Gabriel; Dumbravă, Mona; Croitoru, Adina
- Abstract
Background. Bevacizumab (Bev) is approved in Europe and USA in combination with chemotherapy (CTH) based on fluoropirimidine (FP) in the treatment of adult patients with metastatic colorectal cancer (mCRC) in the first line of therapy, as maintenance treatment, postprogression, and in the second line of therapy. It was performed a retrospective analysis on mCRC patients treated with CTH + Bev in succesive lines in the Medical Oncology Department of the Fundeni Clinical Institute, Bucharest. Method. We collected demografic and clinical data: the disease stage at diagnosis, histopathology data, duration and CTH line, grade 3/4 adverse events, response rate (RR), progression-free survival (PFS), and overall survival (OS). Between August 2007 and December 2018 there had been treated with Bev 516 patients. At 3-6 months from the diagnosis, 384 patients (67.4%) presented synchronous metastases and 168 patients (32.6%) presented metachronous metastases. Results. A total of 358 patients (69.2%) received Bev in the first line of the treatment, of which 260 patients (72.6%) received FP + oxaliplatin (OX): FOLFOX/CAPOX, and 86 patients (24%) received FP + irinotecan(IRI): FOLFIRI/ CAPIRI. Four patients received FOLFOXIRI in the first line, and eight patients received only FP. As maintenance therapy, it was administered Bev/Bev+FP in 88 patients (79.3%) in the OX group and in 20 patients (18%) in the IRI group. A total of 128 patients (35.8%) received Bev beyond progression, of which 99 patients (79.8%) in the OX group and 22 patients (17.7%) in the IRI group; 137 patients (38.3%) received subsequent therapy lines after Bev failure. The medium chemotherapy duration for patients who received OX was 9.9 months (95% CI; 8.67-11.18), and 9.2 months (95% CI; 6.72-11.62) for those who received IRI. A total of 219 patients presented a therapy response, with a RR of 75.34% on OX, and a RR of 24.65% on IRI. The median PFS was 8.12 months (95% CI; 6.89-9.35) for OX and 8.35 months (95% CI; 6.6-10.1) for IRI, with p=0.034. The median OS was 17.03 months (95% CI; 14.66-19.40) for OX and 18.87 months (95% CI; 15.28-22.46) for IRI, with p=0.900. Conclusions. In our experience, Bev-OX had a similar efficacy as Bev-IRI regarding both PFS and OS, but with a higher response rate for those treated with OX.
- Subjects
BUCHAREST (Romania); COLORECTAL cancer; METASTASIS; COMBINATION drug therapy; PROGRESSION-free survival; ONCOLOGY
- Publication
Oncolog-Hematolog, 2020, Issue 52, p38
- ISSN
2066-8716
- Publication type
Article