Optimal schedule of bacillus calmette-guerin for non-muscle-invasive bladder cancer: a meta-analysis of comparative studies

BMC Cancer

Shimiao Zhu¹  Yang Tang¹  Kai Li²  Zhiqun Shang¹  Ning Jiang¹  Xuewu Nian¹  Libin Sun¹  Yuanjie Niu¹ 

[1] Department of Urology, Tianjin Institute of Urology, 2nd Hospital of Tianjin Medical University, Pingjiang Road 23, Tianjin, People’s Republic of China

[2] Department of Urology, Tianjin Third Central Hospital, Tianjin, People’s Republic of China

关键词: Prognosis;    Combination therapy;    Low-dose;    Maintenance therapy;    Non-muscle-invasive bladder cancer;    Bacillus Calmette-Guérin;   

Others  :  1079658
DOI  :  10.1186/1471-2407-13-332

 received in 2013-06-19, accepted in 2013-06-20,  发布年份 2013

【 摘 要 】

Background

To explore the necessity of maintenance, efficacy of low-dose and superiority of various combination therapies of Bacillus Calmette-Guérin (BCG) in treatment of superficial bladder cancer (BCa).

Methods

Comprehensive searches of electronic databases (PubMed, Embase, and the Cochrane Library) were performed, then a systematic review and cumulative meta-analysis of 21 randomized controlled trials (RCTs) and 9 retrospective comparative studies were carried out according to predefined inclusion criteria.

Results

Significantly better recurrence-free survivals (RFS) were observed respectively in patients who received BCG maintenance, standard-dose and BCG plus epirubicin therapy comparing to those received induction, low-dose and BCG alone. BCG maintenance therapy was also associated with significantly better progression-free survival (PFS), but there were more incidences of adverse events. Pooled results showed no remarkable advantage of BCG combined with Mitomycin C or with interferon α-2b in improving oncologic outcomes. Sensitivity-analyses stratified by study-design and tumor stage led to very similar overall results and often to a decrease of the between-study heterogeneity. Our data confirmed that non-RCT only affected strength rather than direction of the overall results.

Conclusions

All patients with superficial BCa should be encouraged to accept BCG maintenance therapy with standard-dose if well tolerated. Patients can benefit from BCG combined with epirubicin but not from BCG combined with Mitomycin C or interferon α-2b.

【 授权许可】

   
2013 Zhu et al.; licensee BioMed Central Ltd.

【 图 表 】

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