Cisplatin/Irinotecan versus carboplatin/paclitaxel as definitive chemoradiotherapy for locoregionally advanced esophageal cancer.
OBJECTIVE
To compare toxicities, disease control, and survival outcomes for patients treated with either cisplatin/irinotecan versus carboplatin/paclitaxel concurrent chemoradiotherapy for locally advanced esophageal cancer.


METHODS
Single-institution retrospective comparison between treatment groups: the cisplatin/irinotecan group was treated with 2 cycles of induction chemotherapy followed by concurrent chemoradiotherapy, whereas the carboplatin/paclitaxel group began with chemoradiotherapy followed by 2 additional cycles of chemotherapy. Acute toxicities, response rates, disease control, survival outcomes, and patterns of failure were compared between the groups.


RESULTS
Between January 2000 and December 2007, 57 patients were identified for inclusion in the present study (38 cisplatin/irinotecan and 19 carboplatin/paclitaxel). Groups were well-balanced by clinical-, pathologic-, staging-, and treatment-related factors. Thirty-five patients (92%) in the cisplatin/irinotecan group and 18 patients (95%) in the carboplatin/paclitaxel group completed the concurrent phase of chemoradiotherapy. There were no significant differences in hematologic or nonhematologic toxicities between the groups. At a median survivor follow-up of 37.6 months (range: 7.3-59.3 months) for the entire population, 22 patients were alive (16 without evidence of disease). The 3-year overall survival estimates was 19.7% for the cisplatin/irinotecan group versus 56.1% for the carboplatin/paclitaxel group (P = 0.022). Estimated 3-year cancer-specific survivals were 24.6% for the cisplatin/irinotecan group versus 59.3% for the carboplatin/paclitaxel group (P = 0.033).


CONCLUSIONS
Concurrent chemoradiotherapy with carboplatin/paclitaxel is well-tolerated and provided superior overall and disease-specific survival compared with cisplatin/irinotecan chemoradiotherapy in the present study population. Further investigation is warranted.
Department of Radiation Oncology, Medical University of South Carolina, Charleston, USA.
Bree N
BN
Ruppert
John M
JM
Watkins
Keisuke
K
Shirai
Amy E
AE
Wahlquist
Elizabeth
E
Garrett-Mayer
Eric G
EG
Aguero
Carol A
CA
Sherman
Carolyn E
CE
Reed
Anand K
AK
Sharma
D000368:Aged; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use* / Q000633:toxicity; D002166:Camptothecin / Q000008:administration & dosage / Q000031:analogs & derivatives; D016190:Carboplatin / Q000008:administration & dosage; D002945:Cisplatin / Q000008:administration & dosage; D003131:Combined Modality Therapy; D004938:Esophageal Neoplasms / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology / Q000532:radiotherapy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D000077146:Irinotecan; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D017239:Paclitaxel / Q000008:administration & dosage; D012189:Retrospective Studies; D015996:Survival Rate
D000077146:Irinotecan; D016190:Carboplatin; D017239:Paclitaxel; D002945:Cisplatin; D002166:Camptothecin