PARP inhibitors as therapy for small cell lung carcinoma: A systematic review and meta-analysis of clinical trials

Background: Small Cell Lung Cancer (SCLC) is a neuroendocrine carcinoma characterized by aggressive behavior and poor prognosis with limited treatment options. Poly ADP-Ribose Polymerase inhibitors (PARPi) are novel anti-cancer agents that induce DNA damages and cause cell death in tumor cells with...

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Main Authors: Samuel Pratama, Lowilius Wiyono, Martien Silviandy Setiawan, Brigitta Cindy Lauren
Format: Article
Language:English
Published: Elsevier 2024-01-01
Series:Cancer Treatment and Research Communications
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Online Access:http://www.sciencedirect.com/science/article/pii/S2468294225000127
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author Samuel Pratama
Lowilius Wiyono
Martien Silviandy Setiawan
Brigitta Cindy Lauren
author_facet Samuel Pratama
Lowilius Wiyono
Martien Silviandy Setiawan
Brigitta Cindy Lauren
author_sort Samuel Pratama
collection DOAJ
description Background: Small Cell Lung Cancer (SCLC) is a neuroendocrine carcinoma characterized by aggressive behavior and poor prognosis with limited treatment options. Poly ADP-Ribose Polymerase inhibitors (PARPi) are novel anti-cancer agents that induce DNA damages and cause cell death in tumor cells with impaired DNA repair, known as the synthetic lethality concept. This study aimed to analyze the efficacy and safety of PARPi for patients with SCLC from available clinical trial data. Methods: Studies reporting efficacy and safety of PARPi therapy for SCLC patients were searched across five databases with predetermined eligibility criteria in accordance with the PRISMA statement. Critical appraisal was done using suitable tools, outcomes were extracted, and analyzed. Results: Five randomized controlled clinical trials with 451 interventional patients and 308 control patients with SCLC were included. The analysis showed increased Progression-Free Survival (PFS) (RR 0.92 (95 %CI 0.84–1.00; p=0.05)) and Objective Response Rate (ORR) (RR 1.27 (95 %CI 1.07–1.50; p=0.007)), no significant difference in Overall Survival (OS) (RR 1.03 (95 %CI 0.92–1.15; p=0.60)), and an increased risk for serious Treatment Emergent Adverse Events (TEAEs) (RR 1.13 (95 %CI 0.95–1.35; p=0.16)) in PARPi-receiving SCLC patients. Amongst the hematologic toxicities, sub-analysis showed that thrombocytopenia had the highest risk, followed by neutropenia, anemia, leukopenia, and lymphopenia. Conclusion: The addition of PARPi in the chemotherapy regimen for patients with SCLC results in increased PFS and ORR, with no difference in OS and an increased risk of TEAEs. Further and larger clinical studies are needed to validate the efficacy and safety of PARPi therapy for SCLC patients.
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spelling doaj-art-a04e5a4756d5483eb7285f72083e76e22025-02-09T05:00:48ZengElsevierCancer Treatment and Research Communications2468-29422024-01-0142100874PARP inhibitors as therapy for small cell lung carcinoma: A systematic review and meta-analysis of clinical trialsSamuel Pratama0Lowilius Wiyono1Martien Silviandy Setiawan2Brigitta Cindy Lauren3Dr Abdul Aziz General Hospital, Singkawang City, West Borneo Province, Indonesia; Faculty of Medicine, University of Indonesia, Jakarta, Indonesia; Corresponding author: Dr Abdul Aziz General Hospital, Singkawang City, West Borneo 79123, Indonesia.Dr Abdul Aziz General Hospital, Singkawang City, West Borneo Province, Indonesia; Faculty of Medicine, University of Indonesia, Jakarta, IndonesiaDr Abdul Aziz General Hospital, Singkawang City, West Borneo Province, Indonesia; Faculty of Medicine, Pelita Harapan University, Banten, IndonesiaDr Abdul Aziz General Hospital, Singkawang City, West Borneo Province, IndonesiaBackground: Small Cell Lung Cancer (SCLC) is a neuroendocrine carcinoma characterized by aggressive behavior and poor prognosis with limited treatment options. Poly ADP-Ribose Polymerase inhibitors (PARPi) are novel anti-cancer agents that induce DNA damages and cause cell death in tumor cells with impaired DNA repair, known as the synthetic lethality concept. This study aimed to analyze the efficacy and safety of PARPi for patients with SCLC from available clinical trial data. Methods: Studies reporting efficacy and safety of PARPi therapy for SCLC patients were searched across five databases with predetermined eligibility criteria in accordance with the PRISMA statement. Critical appraisal was done using suitable tools, outcomes were extracted, and analyzed. Results: Five randomized controlled clinical trials with 451 interventional patients and 308 control patients with SCLC were included. The analysis showed increased Progression-Free Survival (PFS) (RR 0.92 (95 %CI 0.84–1.00; p=0.05)) and Objective Response Rate (ORR) (RR 1.27 (95 %CI 1.07–1.50; p=0.007)), no significant difference in Overall Survival (OS) (RR 1.03 (95 %CI 0.92–1.15; p=0.60)), and an increased risk for serious Treatment Emergent Adverse Events (TEAEs) (RR 1.13 (95 %CI 0.95–1.35; p=0.16)) in PARPi-receiving SCLC patients. Amongst the hematologic toxicities, sub-analysis showed that thrombocytopenia had the highest risk, followed by neutropenia, anemia, leukopenia, and lymphopenia. Conclusion: The addition of PARPi in the chemotherapy regimen for patients with SCLC results in increased PFS and ORR, with no difference in OS and an increased risk of TEAEs. Further and larger clinical studies are needed to validate the efficacy and safety of PARPi therapy for SCLC patients.http://www.sciencedirect.com/science/article/pii/S2468294225000127PARPiSmall-cell lung cancerEfficacyAdverse event
spellingShingle Samuel Pratama
Lowilius Wiyono
Martien Silviandy Setiawan
Brigitta Cindy Lauren
PARP inhibitors as therapy for small cell lung carcinoma: A systematic review and meta-analysis of clinical trials
Cancer Treatment and Research Communications
PARPi
Small-cell lung cancer
Efficacy
Adverse event
title PARP inhibitors as therapy for small cell lung carcinoma: A systematic review and meta-analysis of clinical trials
title_full PARP inhibitors as therapy for small cell lung carcinoma: A systematic review and meta-analysis of clinical trials
title_fullStr PARP inhibitors as therapy for small cell lung carcinoma: A systematic review and meta-analysis of clinical trials
title_full_unstemmed PARP inhibitors as therapy for small cell lung carcinoma: A systematic review and meta-analysis of clinical trials
title_short PARP inhibitors as therapy for small cell lung carcinoma: A systematic review and meta-analysis of clinical trials
title_sort parp inhibitors as therapy for small cell lung carcinoma a systematic review and meta analysis of clinical trials
topic PARPi
Small-cell lung cancer
Efficacy
Adverse event
url http://www.sciencedirect.com/science/article/pii/S2468294225000127
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