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  • Title: [Comparison of the efficacy of CCCG-97 and BFM-90 protocols in the treatment for children with mature B-cell non-Hodgkin's lymphoma].
    Author: Meng JH, Gao YJ, Lu FJ, Zhai XW, Wang HS, Li J.
    Journal: Zhonghua Zhong Liu Za Zhi; 2012 Mar; 34(3):222-7. PubMed ID: 22780979.
    Abstract:
    OBJECTIVE: The aim of this study was to evaluate the efficacy and toxicity of the CCCG-97 and BFM-90 protocols in the treatment of pediatric patients with B-cell non-Hodgkin's lymphoma (B-NHL) retrospectively, and to explore the optimal therapeutic strategy. METHODS: Forty-five consecutive untreated patients (age of 18 years or less) with newly diagnosed B-NHL (including Burkitt Lymphoma and diffuse large B-cell lymphoma), treated in our hospital between July 1999 and December 2008 were enrolled in this study. The patients were classified into 2 groups by different protocols. From July 1999 to December 2004, twenty-one 3- to 13.8-year-old children were enrolled in the CCCG-97 group, with 1 in stage I/II, and 20 in stage III/IV(St Jude staging). From January 2005 to December 2008, twenty-four 2.8- to 14.1-year-old cases were enrolled in the BFM-90 group, with 3 in stage I/II, and 21 in stage III/IV (St Jude staging). The survival rates were evaluated by Kaplan-Meier analysis. RESULTS: Forty of the 45 patients (88.9%) reached complete response (CR) after 2 courses of chemotherapy. In the CCCG-97 group, the CR rate was 95.2% (20/21 pts), while that in the BFM-90 group was 83.3% (20/24 pts). At a median follow-up time of 62 (17 to 131) months, the 5-year event-free survival (EFS) was 71.8% for all patients, and 69.1% for Stage III/IV, respectively. In the CCCG-97 group, the 3-year EFS was 76.2%. In the BFM-90 group, it was 75.0%. There was no significant difference in survival rates between the CCCG-97 and BFM-90 groups (P=0.975). Unfavorable events recorded were as follows: Death of progression before achieving CR during induction therapy in 4 cases, and relapse after achieving CR in 6 cases. The relapse rates were 19.0% (4/21 pts) in the CCCG-97 group and 8.3% (2/24 pts) in the BFM-90 group, with a non-significant statistical difference (P=0.292). Major toxicities were myelosuppression and mucositis, especially in the BFM-90 group, but were tolerable and manageable. five patients in the BFM-90 group received rituximab, 2 patients (Stage III) achieved CR, while the other 3 patients (Stage IV) had progressive disease or relapse. CONCLUSIONS: Short-pulse and intensive chemotherapy, stratified according to stage of disease, can improve the survival rate of pediatric mature B-NHL. The efficacy of the CCCG-97 protocol and BFM-90 protocol is comparable and the toxicity is tolerable.
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