Progression-Free Survival and Time to Progression as Real Surrogate End Points for Overall Survival in Advanced Breast Cancer: A Meta-Analysis of 37 Trials

2018 ◽  
Vol 18 (1) ◽  
pp. 63-70 ◽  
Author(s):  
Ling Li ◽  
Zhanyu Pan
Keyword(s):  
Breast Cancer ◽  
Overall Survival ◽  
Advanced Breast Cancer ◽  
Meta Analysis ◽  
Progression Free Survival ◽  
Advanced Breast ◽  
Time To Progression ◽  
End Points ◽  
Free Survival

scholarly journals Network meta-analysis of eribulin versus other chemotherapies used as second- or later-line treatment in locally advanced or metastatic breast cancer

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Qi Zhao ◽  
Rachel Hughes ◽  
Binod Neupane ◽  
Kristin Mickle ◽  
Yun Su ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Overall Survival ◽  
Metastatic Breast Cancer ◽  
Advanced Breast Cancer ◽  
Locally Advanced Breast Cancer ◽  
Meta Analysis ◽  
Locally Advanced ◽  
Metastatic Breast ◽  
Progression Free Survival ◽  
Free Survival

Abstract Background Eribulin mesylate (ERI; Halaven®) is a microtubule inhibitor approved in the United States for metastatic breast cancer patients with at least two prior chemotherapy regimens for metastatic breast cancer, and in the European Union in locally advanced breast cancer or metastatic breast cancer patients who progressed after at least one chemotherapy for advanced disease. This network meta-analysis compared the efficacy and safety of ERI versus other chemotherapies in this setting. Methods Systematic searches conducted in MEDLINE, Embase, and the Cochrane Central Register of Clinical Trials identified randomized controlled trials of locally advanced breast cancer/metastatic breast cancer chemotherapies in second- or later-line settings. Efficacy assessment included pre-specified subgroup analysis of breast cancer subtypes. Included studies were assessed for quality using the Centre for Reviews and Dissemination tool. Bayesian network meta-analysis estimated primary outcomes of overall survival and progression-free survival using fixed-effect models. Comparators included: capecitabine (CAP), gemcitabine (GEM), ixabepilone (IXA), utidelone (UTI), treatment by physician’s choice (TPC), and vinorelbine (VIN). Results The network meta-analysis included seven trials. Results showed that second- or later-line patients treated with ERI had statistically longer overall survival versus TPC (hazard ratio [HR]: 0.81; credible interval [CrI]: 0.66–0.99) or GEM+VIN (0.62; 0.42–0.90) and statistically longer progression-free survival versus TPC (0.76; 0.64–0.90), but statistically shorter progression-free survival versus CAP+IXA (1.40; 1.17–1.67) and CAP+UTI (1.61; 1.23–2.12). In triple negative breast cancer, ERI had statistically longer overall survival versus CAP (0.70; 0.54–0.90); no statistical differences in progression-free survival were observed in triple negative breast cancer. Conclusions This network meta-analysis suggests that ERI may provide an overall survival benefit in the overall locally advanced breast cancer/metastatic breast cancer populations and triple negative breast cancer subgroup compared to standard treatments. These findings support the use of ERI in second- or later-line treatment of patients with locally advanced breast cancer/metastatic breast cancer.

scholarly journals Deep exploration of PARP inhibitors in breast cancer: monotherapy and combination therapy

2021 ◽  
Vol 49 (2) ◽  
pp. 030006052199101
Author(s):  
Zheling Chen ◽  
Xiao Wang ◽  
Xiao Li ◽  
Yucheng Zhou ◽  
Ke Chen
Keyword(s):  
Breast Cancer ◽  
Advanced Breast Cancer ◽  
Meta Analysis ◽  
Treatment Options ◽  
Metastatic Breast ◽  
Progression Free Survival ◽  
Advanced Breast ◽  
Systemic Review ◽  
Brca Mutations ◽  
Free Survival

Objective Nearly 5% of patients with breast cancer carry germline BRCA mutations, which are more common in triple-negative breast cancer (TNBC). Previous clinical trials demonstrated the therapeutic efficacy of poly (ADP-ribose) polymerase inhibitors (PARPis) against BRCA-mutated metastatic breast cancer. The current study conducted a systemic review and meta-analysis of the clinical efficiency and safety of PARPis, either alone or combined with chemotherapy, in patients with TNBC. Methods We searched PubMed, EMBASE, and ClinicalTrials.gov to identify randomized controlled trials comparing PARPi therapy with chemotherapy, and comparisons of chemotherapy plus PARPis with chemotherapy alone were included. The study endpoints included the clinical response, progression-free survival, and adverse event rates. Results PARPi therapy was revealed to improve progression-free survival in patients with advanced breast cancer, either alone or in combination with chemotherapy. Subgroup analysis illustrated that patients with mutant BRCA1 and mutant BRCA2 and those who had not been treated with platinum-based agents could specifically benefit from PARPis. Conclusion PARPi monotherapy can significantly improve clinical outcomes in patients with advanced breast cancer, especially those with TNBC, those who had not previously received platinum therapy, and those with mutant BRCA1/2. PARPis combined with chemotherapy represent new treatment options for patients with advanced cancer.

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