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Medline ® Abstract for Reference 57

of 'Treatment for potentially resectable exocrine pancreatic cancer'

Preoperative paclitaxel and concurrent rapid-fractionation radiation for resectable pancreatic adenocarcinoma: toxicities, histologic response rates, and event-free outcome.
Pisters PW, Wolff RA, Janjan NA, Cleary KR, Charnsangavej C, Crane CN, Lenzi R, Vauthey JN, Lee JE, Abbruzzese JL, Evans DB
J Clin Oncol. 2002;20(10):2537.
PURPOSE: To evaluate the toxicity of a preoperative regimen of paclitaxel and concurrent external-beam radiation therapy, pancreaticoduodenectomy, and electron-beam intraoperative radiation therapy (EB-IORT) for patients with resectable pancreatic adenocarcinoma.
PATIENTS AND METHODS: Patients with localized, potentially resectable pancreatic adenocarcinoma were treated with 30 Gy external-beam radiation therapy and concomitant weekly 3-hour infusions of paclitaxel (60 mg/m(2)). Radiographic restaging was performed 4 to 6 weeks after chemoradiation, and patients with localized disease underwent pancreatectomy with EB-IORT.
RESULTS: Thirty-five patients completed chemoradiation; 16 (46%) experienced grade 3 toxicity. Four patients (11%) required hospitalization for dehydration due to grade 3 nausea and vomiting. Twenty (80%) of 25 patients who underwent surgery underwent pancreatectomy; EB-IORT was used in 13 patients. Therewere no histologic complete responses to preoperative therapy; 21% of specimens demonstrated more than 50% nonviable cells (grade 2b treatment effect). With a median follow-up period of 46 months, the 3-year overall survival rate with chemoradiation and pancreatectomy was 28%.
CONCLUSION: Preoperative paclitaxel-based concurrent chemoradiation is feasible. The toxicity of this regimen seems greater than that with fluorouracil. The histologic responses and survival are similar, suggesting no advantages to paclitaxel-based preoperative treatment.
Pancreatic Tumor Study Group, University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA. ppisters@mdanderson.org