Shen W.-Y.,Peoples Hospital of Lianshui County |
Ji J.,Nanjing Medical University |
Zuo Y.-S.,Peoples Hospital of Lianshui County |
Pu J.,Peoples Hospital of Lianshui County |
And 11 more authors.
Radiotherapy and Oncology | Year: 2014
Objective The efficacy of postoperative concurrent radiochemotherapy (POCRT) on IIIA-pN2 non-small cell lung cancer (NSCLC) is still unclear the aim of this randomized controlled trial was to compare POCRT with postoperative chemotherapy (POCT) alone in terms of survival and relapse patterns. Methods Patients with completely resected IIIA-pN2 NSCLC were randomized into POCRT or POCT groups. Chemotherapy consisted of paclitaxel (175 mg/m2) and cisplatin (60 mg/m2) administered intravenously for four cycles on day 1, 22, 43, and 64. Patients in the POCRT group received radiotherapy (50.4 Gy/28 fractions) concurrently with the first 2 cycles of chemotherapy. Results This study recruited 140 participants and was closed early because of slow accrual. Data were analyzed for 135 of them including 66 cases in the POCRT group and 69 cases in the POCT group. Patients were followed-up for a median period of 45 months the POCRT group had a median survival (MS) of 40 months and a 5-year overall survival (OS) rate of 37.9% the POCT group had a MS of 28 months and a 5-year OS rate of 27.5% the hazard ratio for death in the POCRT group was 0.69 (95% CI: 0.457-1.044, P = 0.073). We observed a disease-free survival (DFS) of 28 months and a 5-year DFS rate of 30.3% in the POCRT group. Likewise, we observed a DFS of 18 months and a 5-year DFS rate of 18.8% in the POCT group the recurrence hazard ratio in the POCT group was 1.49 (95% CI: 1.008-2.204, P = 0.041). Subgroup analysis revealed that POCRT significantly increased the OS rate of the patients with ≥2 pN2 lymph nodes (P = 0.021) the POCRT group had a significantly lower local relapse (P = 0.009) and distant metastasis (P = 0.05) rates as compared to that of the POCT group. One case died of pyemia and 9 cases suffered from grade 3 and 4 acute radiation esophagitis the two groups had similar and tolerable hematologic toxicities. Conclusions Compared with POCT, POCRT increased both local/regional and distant DFS rate of the patients with IIIA-pN2 NSCLC, but not the OS rate. Considering the relatively small sample size of the current study, caution should be taken when adopting the conclusions. © 2013 Elsevier Ireland Ltd. All rights reserved. Source
Zhu W.-G.,Nanjing Medical University |
Xua D.-F.,Nanjing Medical University |
Pu J.,People Hospital of Lianshui County |
Zong C.-D.,Oncology Hospital of huaiAn |
And 10 more authors.
Radiotherapy and Oncology | Year: 2012
Background and purpose: The role of postoperative chemoradiotherapy in the treatment of patients with gastric cancer with D2 lymph node curative dissection is not well established. In this study, we compared postoperative intensity-modulated radiotherapy plus chemotherapy (IMRT-C) with chemotherapy-only in this patient population. Materials and methods: We randomly assigned patients with D2 lymph node dissection in gastric cancer to IMRT-C or chemotherapy-only groups. The adjuvant IMRT-C consisted of 400 mg of fluorouracil per square meter of body-surface area per day plus 20 mg of leucovorin per square meter of body-surface area per day for 5 days, followed by 45 Gy of IMRT for 5 weeks, with fluorouracil and leucovorin on the first 4 and the last 3 days of radiotherapy. Two 5-day cycles of fluorouracil and leucovorin were given 4 weeks after the completion of IMRT. Chemotherapy-only group was given the same chemotherapy regimens as IMRT-C group. Results: The median overall survival (OS) in the chemotherapy-only group was 48 months, as compared with 58 months in the IMRT-C group; the hazard ratio for death was 1.24 (95% confidence interval, 0.94-1.65; P = 0.122). IMRT-C was associated with increases in the median duration of recurrence-free survival (RFS) (36 months vs. 50 months), the hazard ratio for recurrence was 1.35 (95% confidence interval, 1.03-1.78; P = 0.029). COX multivariate regression analysis showed that lymph node metastasis and TNM stage were both the independent prognostic factors. Rates of all grade adverse events were similar in the two treatment groups. Conclusions: IMRT-C improved RFS, but did not significantly improve OS among patients with D2 lymph node dissection in gastric cancer. Using IMRT plus chemotherapy was feasible and well tolerated in patients with gastric cancer after D2 resection. © 2012 Elsevier Ireland Ltd. All rights reserved. Source