The current status of checkpoint inhibitors in metastatic bladder cancer

For many decades, no significant improvements could be achieved to prolong the survival in metastatic bladder cancer. Recently, systemic immunotherapy with checkpoint inhibitors (anti-PD-L1/anti-CTLA-4) has been introduced as a novel treatment modality for patients with metastatic bladder cancer. We...

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Main Authors: Fahmy Ahmed, Omar Ahmed, Mohd. Ghani @ Mamat, Khairul Asri, Stenzl, Arnulf, Gakis, Georgios
Format: Article
Language:English
Published: Springer Verlag 2016
Online Access:http://psasir.upm.edu.my/id/eprint/52960/
http://psasir.upm.edu.my/id/eprint/52960/1/The%20current%20status%20of%20checkpoint%20inhibitors%20in%20metastatic%20bladder%20cancer.pdf
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author Fahmy Ahmed, Omar Ahmed
Mohd. Ghani @ Mamat, Khairul Asri
Stenzl, Arnulf
Gakis, Georgios
author_facet Fahmy Ahmed, Omar Ahmed
Mohd. Ghani @ Mamat, Khairul Asri
Stenzl, Arnulf
Gakis, Georgios
author_sort Fahmy Ahmed, Omar Ahmed
building UPM Institutional Repository
collection Online Access
description For many decades, no significant improvements could be achieved to prolong the survival in metastatic bladder cancer. Recently, systemic immunotherapy with checkpoint inhibitors (anti-PD-L1/anti-CTLA-4) has been introduced as a novel treatment modality for patients with metastatic bladder cancer. We conducted a systematic review according to the PRISMA statement for data published on the clinical efficacy of checkpoint inhibitors in metastatic bladder cancer. Clinical efficacy of anti PD-L1 therapy was investigated in prospective trials in a total of 155 patients. Patients with positive expression for PD-L1 tended towards better overall response rates (ORR) compared to those with negative expression (34/76 vs 10/73, 45 vs 14 %; p = 0.21). Among patients with PD-L1 positive tumors, those with non-visceral metastases exhibited significantly higher ORR compared to those with visceral metastases (82 vs 28 %; p = 0.001). For anti-CTLA4 therapy, there were no data retrievable on clinical efficacy. Although data on clinical efficacy of checkpoint inhibitors in metastatic bladder cancer are currently limited, the efficacy of these drugs might depend mainly on the metastatic volume and immune system integrity. Patients with PD-L1 positive tumors and non-visceral metastases seem to derive the highest benefit from therapy.
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spelling upm-529602018-04-30T13:36:55Z http://psasir.upm.edu.my/id/eprint/52960/ The current status of checkpoint inhibitors in metastatic bladder cancer Fahmy Ahmed, Omar Ahmed Mohd. Ghani @ Mamat, Khairul Asri Stenzl, Arnulf Gakis, Georgios For many decades, no significant improvements could be achieved to prolong the survival in metastatic bladder cancer. Recently, systemic immunotherapy with checkpoint inhibitors (anti-PD-L1/anti-CTLA-4) has been introduced as a novel treatment modality for patients with metastatic bladder cancer. We conducted a systematic review according to the PRISMA statement for data published on the clinical efficacy of checkpoint inhibitors in metastatic bladder cancer. Clinical efficacy of anti PD-L1 therapy was investigated in prospective trials in a total of 155 patients. Patients with positive expression for PD-L1 tended towards better overall response rates (ORR) compared to those with negative expression (34/76 vs 10/73, 45 vs 14 %; p = 0.21). Among patients with PD-L1 positive tumors, those with non-visceral metastases exhibited significantly higher ORR compared to those with visceral metastases (82 vs 28 %; p = 0.001). For anti-CTLA4 therapy, there were no data retrievable on clinical efficacy. Although data on clinical efficacy of checkpoint inhibitors in metastatic bladder cancer are currently limited, the efficacy of these drugs might depend mainly on the metastatic volume and immune system integrity. Patients with PD-L1 positive tumors and non-visceral metastases seem to derive the highest benefit from therapy. Springer Verlag 2016 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/52960/1/The%20current%20status%20of%20checkpoint%20inhibitors%20in%20metastatic%20bladder%20cancer.pdf Fahmy Ahmed, Omar Ahmed and Mohd. Ghani @ Mamat, Khairul Asri and Stenzl, Arnulf and Gakis, Georgios (2016) The current status of checkpoint inhibitors in metastatic bladder cancer. Clin Exp Metastasis, 33 (7). pp. 629-635. ISSN 0262-0898; ESSN: 1573-7276 10.1007/s10585-016-9807-9
spellingShingle Fahmy Ahmed, Omar Ahmed
Mohd. Ghani @ Mamat, Khairul Asri
Stenzl, Arnulf
Gakis, Georgios
The current status of checkpoint inhibitors in metastatic bladder cancer
title The current status of checkpoint inhibitors in metastatic bladder cancer
title_full The current status of checkpoint inhibitors in metastatic bladder cancer
title_fullStr The current status of checkpoint inhibitors in metastatic bladder cancer
title_full_unstemmed The current status of checkpoint inhibitors in metastatic bladder cancer
title_short The current status of checkpoint inhibitors in metastatic bladder cancer
title_sort current status of checkpoint inhibitors in metastatic bladder cancer
url http://psasir.upm.edu.my/id/eprint/52960/
http://psasir.upm.edu.my/id/eprint/52960/
http://psasir.upm.edu.my/id/eprint/52960/1/The%20current%20status%20of%20checkpoint%20inhibitors%20in%20metastatic%20bladder%20cancer.pdf