Long-Term Results of a Phase II Trial of Concomitant Cisplatin-Paclitaxel Chemoradiation in Locally Advanced Cervical Cancer
Martínez-Fernández MI (1), Legaspi Folgueira J, Valtueña Peydró G, Cambeiro M [SP], Espinós J [SP], Aramendía JM [SP], Minguez-Milio JA, Martínez-Monge R.
(1) Departments of *Oncology and †Gynecology and Obstetrics, Clínica Universidad de Navarra, University of Navarra, Pamplona, Navarre, Spain.
Magazine: International Journal of Gynecological Cancer
Date: Jul 1, 2016Radiation Oncology Gynaecology and Obstetrics Medical Oncology
The aim of this study was to determine the long-term results of a 7-week schedule of external beam radiation therapy, high dose rate brachytherapy, and weekly cisplatin and paclitaxel in patients with locally advanced carcinoma of the cervix.
Thirty-seven patients with International Federation of Gynecology and Obstetrics stages IB2 to IVa cervical cancer were treated with 40 mg/m per week of intravenous cisplatin and 50 mg/m per week of intravenous paclitaxel combined with 45 Gy of pelvic external beam radiation therapy and 28 to 30 Gy of high dose rate brachytherapy.
Sixteen patients (43.2%) were able to complete the 6 scheduled cycles of chemotherapy. The median number of weekly chemotherapy cycles administered was 5. Thirty-six (16.2%) of 222 cycles of chemotherapy were not given because of toxicity. The mean dose intensity of cisplatin was 29.6 mg/m per week (95% confidence interval, 27.0-32.1); that of paclitaxel was 40.0 mg/m per week (95% confidence interval, 36.9-43.1).
Thirty-four patients (91.8%) completed the planned radiation course in less than 7 weeks. Median radiation treatment length was 43 days. After a median follow-up of 6 years, 7 patients (18.9%) experienced severe (RTOG grade 3 or higher) late toxicity. No fatal events were observed. Ten patients have failed, 1 locally and 9 at distant sites.
The 14-year locoregional control rate was 96.7%, and the 14-year freedom from systemic failure rate was 64.6%. Fourteen-year actuarial disease-free survival and overall survival rates were 44.8% and 50%, respectively.
This study demonstrates excellent very long-term results and tolerable toxicity although the target weekly dosage of cisplatin and paclitaxel needs to be adjusted in the majority of the patients.
CITATION Int J Gynecol Cancer. 2016 Jul;26(6):1162-8. doi: 10.1097/IGC.0000000000000744
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