Urba S G, Orringer M B, Turrisi A, Iannettoni M, Forastiere A, Strawderman M
University of Michigan Medical Center, Ann Arbor, MI 48109, USA.
J Clin Oncol. 2001 Jan 15;19(2):305-13. doi: 10.1200/JCO.2001.19.2.305.
A pilot study of 43 patients with potentially resectable esophageal carcinoma treated with an intensive regimen of preoperative chemoradiation with cisplatin, fluorouracil, and vinblastine before surgery showed a median survival of 29 months in comparison with the 12-month median survival of 100 historical controls treated with surgery alone at the same institution. We designed a randomized trial to compare survival for patients treated with this preoperative chemoradiation regimen versus surgery alone.
One hundred patients with esophageal carcinoma were randomized to receive either surgery alone (arm I) or preoperative chemoradiation (arm II) with cisplatin 20 mg/m2/d on days 1 through 5 and 17 through 21, fluorouracil 300 mg/m2/d on days 1 through 21, and vinblastine 1 mg/m2/d on days 1 through 4 and 17 through 20. Radiotherapy consisted of 1.5-Gy fractions twice daily, Monday through Friday over 21 days, to a total dose of 45 Gy. Transhiatal esophagectomy with a cervical esophagogastric anastomosis was performed on approximately day 42.
At median follow-up of 8.2 years, there is no significant difference in survival between the treatment arms. Median survival is 17.6 months in arm I and 16.9 months in arm II. Survival at 3 years was 16% in arm I and 30% in arm II (P = .15). This study was statistically powered to detect a relatively large increase in median survival from 1 year to 2.2 years, with at least 80% power.
This randomized trial of preoperative chemoradiation versus surgery alone for patients with potentially resectable esophageal carcinoma did not demonstrate a statistically significant survival difference.
一项针对43例潜在可切除食管癌患者的初步研究显示,术前采用顺铂、氟尿嘧啶和长春碱强化化疗放疗方案治疗后,其生存期的中位数为29个月,而在同一机构接受单纯手术治疗的100例历史对照患者的生存期中位数为12个月。我们设计了一项随机试验,比较接受这种术前放化疗方案与单纯手术治疗的患者的生存率。
100例食管癌患者被随机分为两组,一组接受单纯手术(I组),另一组接受术前放化疗(II组)。术前放化疗方案为:顺铂20mg/m²/d,第1至5天和第17至21天给药;氟尿嘧啶300mg/m²/d,第1至21天给药;长春碱1mg/m²/d,第1至4天和第17至20天给药。放疗采用每天两次,每次1.5Gy,周一至周五,共21天,总剂量为45Gy。大约在第42天进行经胸食管切除术并在颈部行食管胃吻合术。
在8.2年的中位随访期内,两组治疗的生存率无显著差异。I组的中位生存期为17.6个月,II组为16.9个月。I组3年生存率为16%,II组为30%(P = 0.15)。本研究在统计学上有能力检测到中位生存期从1年相对大幅增加到2.2年,检验效能至少为80%。
这项针对潜在可切除食管癌患者的术前放化疗与单纯手术的随机试验未显示出在统计学上有显著的生存差异。