Chemotherapy for advanced gallbladder cancer (GBC): a systematic review and meta-analysis
AffiliationMedical Oncology Department, The Christie NHS Foundation Trust, Manchester, United Kingdom; Cambridge University Hospitals NHS Foundation Trust, Addenbrookes Hospital, Cambridge
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AbstractBackground: The benefit from chemotherapy, specifically for patients with gallbladder cancer (GBC), has been poorly explored since GBC is mostly studied jointly with other biliary tract cancers (BTC). Methods: Eligible studies reporting outcome of palliative systemic chemotherapy for advanced GBC were identified through MEDLINE, cross-referencing and conferences (PROSPERO-CRD42019155745). Meta-analysis of proportions and calculation of pooled weighted means were performed. Results: 58 eligible studies (n = 1,986 patients); cisplatin/gemcitabine (33% of patients), gemcitabine/oxaliplatin (14%) or gemcitabine monotherapy (9%). Estimated pooled overall radiological response rate(ORR), and pooled weighted mean progression-free (PFS) and overall survivals (OS) were 23.2% (95%-CI 20.0-26.5) (I2: 52.5% (p < 0.001)), 4.8 months (95%-CI 4.3-5.2) and 8.3 months (95%CI 7.6-8.9), respectively. Patients with non-GBC BTCs achieved a lower ORR than GBC [odds ratio 0.65 (95% CI, 0.50-0.84)]. Conclusions: GBC benefit from chemotherapy differs from other BTCs, with shorter PFS/OS despite higher ORR; new treatment options are urgently required for management of advanced GBC.
CitationAzizi AA, Lamarca A, McNamara MG, Valle JW. Chemotherapy for Advanced Gallbladder Cancer (GBC): A Systematic Review and Meta-Analysis. Critical Reviews in Oncology/Hematology. 2021 Apr;103328.
JournalCritical Reviews in Oncology/ Hematology
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