Xiang Yue1, Qin-Chuan Zang. 1. Department of Medical Oncology, Nanjing Drum Tower Hospital, Medical College, Nanjing University, Nanjing, Jiangsu 210008, P.R. China. yx550405@sina.com.cn
Abstract
BACKGROUND & OBJECTIVE:Median survival time (MST) of small cell lung cancer (SCLC) patients with brain metastases was short when patients were palliatively treated with either chemotherapy or whole brain radiotherapy (WBRT). This study was designed to compare therapeutic effects,toxicities,and survival time of 2 different sequential treatments of VmP regimen and WBRT for SCLC patients with brain metastases. METHODS: According to bed availability, 38 naive SCLC patients with brain metastases were nonrandomized into group A and group B. There was no significant difference of characteristics between 2 groups (Chi-s Fisher's exact test, P >0.05). Patients in group A (VmP-WBRT) received 2 cycles of VmP regimen (teniposide, 60 mg/m(2),d(1-5), cisplatin, 25 mg/m(2), d(1-3), repeated every 4 weeks),and then WBRT (3 Gy x 10,within 2 weeks); patients in group B (WBRT-VmP) received the same WBRT in advance,and then 2 cycles of VmP regimen. Patients with single brain lesion received an extra 3 Gy x 5 radiotherapy on the limited field of brain lesion within 1 week after WBRT. All patients received 2-4 cycles of chemotherapy after sequential treatments. RESULTS: Both sequential treatments relieved neurological symptoms of more than 80% of patients. Response rates of brain,lung,and total lesions of group A and B had no significant differences (68.2% vs. 75.0%, P=0.647; 77.3% vs. 75%, P=0.871; 63.6% vs. 56.3%, P=0.646,respectively). Time to progression (TTP) of group A was 6.0 (95% CI 4.4-7.6) months,of group B was 5.0 (95% CI 3.6-6.4) months (P=0.383). MST of group A was 12.0 (95% CI 7.9-16.1) months,of group B was 9.0 (95% CI 5.6-12.4) months (P=0.049). One-year survival rate of group A was 31.8%,of group B was 18.8% (P=0.281),and 2-year survival rates were 13.6%, and 6.3% (P=0.844). Myelosuppression was the main concentration-dependent toxicity. Incidence of vomit at stage III in group B was higher than that in group A (P=0.01). All treatment toxicities were tolerable and manageable. CONCLUSION: Both sequential treatments can be safely performed for SCLC patients with brain metastases, may relieve neurological symptoms, and well control both primary and metastatic lesions. VmP-WBRT sequential treatment may prolong survival time of SCLC patients for 3 months.
RCT Entities:
BACKGROUND & OBJECTIVE: Median survival time (MST) of small cell lung cancer (SCLC) patients with brain metastases was short when patients were palliatively treated with either chemotherapy or whole brain radiotherapy (WBRT). This study was designed to compare therapeutic effects,toxicities,and survival time of 2 different sequential treatments of VmP regimen and WBRT for SCLCpatients with brain metastases. METHODS: According to bed availability, 38 naive SCLCpatients with brain metastases were nonrandomized into group A and group B. There was no significant difference of characteristics between 2 groups (Chi-s Fisher's exact test, P >0.05). Patients in group A (VmP-WBRT) received 2 cycles of VmP regimen (teniposide, 60 mg/m(2),d(1-5), cisplatin, 25 mg/m(2), d(1-3), repeated every 4 weeks),and then WBRT (3 Gy x 10,within 2 weeks); patients in group B (WBRT-VmP) received the same WBRT in advance,and then 2 cycles of VmP regimen. Patients with single brain lesion received an extra 3 Gy x 5 radiotherapy on the limited field of brain lesion within 1 week after WBRT. All patients received 2-4 cycles of chemotherapy after sequential treatments. RESULTS: Both sequential treatments relieved neurological symptoms of more than 80% of patients. Response rates of brain,lung,and total lesions of group A and B had no significant differences (68.2% vs. 75.0%, P=0.647; 77.3% vs. 75%, P=0.871; 63.6% vs. 56.3%, P=0.646,respectively). Time to progression (TTP) of group A was 6.0 (95% CI 4.4-7.6) months,of group B was 5.0 (95% CI 3.6-6.4) months (P=0.383). MST of group A was 12.0 (95% CI 7.9-16.1) months,of group B was 9.0 (95% CI 5.6-12.4) months (P=0.049). One-year survival rate of group A was 31.8%,of group B was 18.8% (P=0.281),and 2-year survival rates were 13.6%, and 6.3% (P=0.844). Myelosuppression was the main concentration-dependent toxicity. Incidence of vomit at stage III in group B was higher than that in group A (P=0.01). All treatment toxicities were tolerable and manageable. CONCLUSION: Both sequential treatments can be safely performed for SCLCpatients with brain metastases, may relieve neurological symptoms, and well control both primary and metastatic lesions. VmP-WBRT sequential treatment may prolong survival time of SCLCpatients for 3 months.