{"title":"Impact of Olaparib, Niraparib, Rucaparib therapies on Newly Diagnosed and Relapsed Ovarian Cancer -Systematic Review and Meta-Analysis.","authors":"Seeta Devi, Ramesh Chandrababu","doi":"10.31557/APJCP.2025.26.6.1931","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>This review aims to examine the effect of PARP inhibitors on PFS, OS, and adverse events in women with advanced ovarian cancer (OC).</p><p><strong>Methods: </strong>The PRISMA 2020 guidelines are followed while conducting this comprehensive review. Data from 17 randomized control trails (RCT) published between 2014 and June 2024 were included. These trials compared PARPi maintenance therapy to placebo women with newly diagnosed and recurrent advanced OC. The specific keywords were used to search relevant studies in databases including PubMed, SCOPUS, Cochrane library, and WoS. The main outcomes were the Progression free survival (PFS), overall survival (OS), or adverse events (AEs). The combined hazard ratios (HRs) and risk ratios (RRs) were determined, together with 95% confidence intervals (CIs). Each of the analyses were conducted using a model with random effects.</p><p><strong>Results: </strong>Despite high heterogeneity, the meta-analysis found that poly (ADP-ribose) polymerase inhibitors (PARPi) maintenance therapy ominously improved PFS compared to placebo, with a combined HR of 1.33 (95% CI: 1.10-1.61) in newly diagnosed cases and 0.88 (95% CI: 0.59-1.30) in relapsed cases. However, the OS improvement was not significantly substantial, with a collective HR of 1.06 (95% CI: 0.99-1.13). AEs are considerably higher in the PARPi groups, notably hematologic toxicities including anaemia, thrombocytopenia, and neutropenia. However, these adverse effects may be controlled with dosage modifications, and therapy was discontinued only in few cases.</p><p><strong>Conclusion: </strong>PARPi are an effective therapy in both newly discovered and relapsed. Although there is a modest rise in the frequency of severe adverse reactions, they are usually handled well.</p>","PeriodicalId":55451,"journal":{"name":"Asian Pacific Journal of Cancer Prevention","volume":"26 6","pages":"1931-1941"},"PeriodicalIF":0.0000,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Asian Pacific Journal of Cancer Prevention","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31557/APJCP.2025.26.6.1931","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Medicine","Score":null,"Total":0}
引用次数: 0
Abstract
Objective: This review aims to examine the effect of PARP inhibitors on PFS, OS, and adverse events in women with advanced ovarian cancer (OC).
Methods: The PRISMA 2020 guidelines are followed while conducting this comprehensive review. Data from 17 randomized control trails (RCT) published between 2014 and June 2024 were included. These trials compared PARPi maintenance therapy to placebo women with newly diagnosed and recurrent advanced OC. The specific keywords were used to search relevant studies in databases including PubMed, SCOPUS, Cochrane library, and WoS. The main outcomes were the Progression free survival (PFS), overall survival (OS), or adverse events (AEs). The combined hazard ratios (HRs) and risk ratios (RRs) were determined, together with 95% confidence intervals (CIs). Each of the analyses were conducted using a model with random effects.
Results: Despite high heterogeneity, the meta-analysis found that poly (ADP-ribose) polymerase inhibitors (PARPi) maintenance therapy ominously improved PFS compared to placebo, with a combined HR of 1.33 (95% CI: 1.10-1.61) in newly diagnosed cases and 0.88 (95% CI: 0.59-1.30) in relapsed cases. However, the OS improvement was not significantly substantial, with a collective HR of 1.06 (95% CI: 0.99-1.13). AEs are considerably higher in the PARPi groups, notably hematologic toxicities including anaemia, thrombocytopenia, and neutropenia. However, these adverse effects may be controlled with dosage modifications, and therapy was discontinued only in few cases.
Conclusion: PARPi are an effective therapy in both newly discovered and relapsed. Although there is a modest rise in the frequency of severe adverse reactions, they are usually handled well.
期刊介绍:
Cancer is a very complex disease. While many aspects of carcinoge-nesis and oncogenesis are known, cancer control and prevention at the community level is however still in its infancy. Much more work needs to be done and many more steps need to be taken before effective strategies are developed. The multidisciplinary approaches and efforts to understand and control cancer in an effective and efficient manner, require highly trained scientists in all branches of the cancer sciences, from cellular and molecular aspects to patient care and palliation.
The Asia Pacific Organization for Cancer Prevention (APOCP) and its official publication, the Asia Pacific Journal of Cancer Prevention (APJCP), have served the community of cancer scientists very well and intends to continue to serve in this capacity to the best of its abilities. One of the objectives of the APOCP is to provide all relevant and current scientific information on the whole spectrum of cancer sciences. They aim to do this by providing a forum for communication and propagation of original and innovative research findings that have relevance to understanding the etiology, progression, treatment, and survival of patients, through their journal. The APJCP with its distinguished, diverse, and Asia-wide team of editors, reviewers, and readers, ensure the highest standards of research communication within the cancer sciences community across Asia as well as globally.
The APJCP publishes original research results under the following categories:
-Epidemiology, detection and screening.
-Cellular research and bio-markers.
-Identification of bio-targets and agents with novel mechanisms of action.
-Optimal clinical use of existing anti-cancer agents, including combination therapies.
-Radiation and surgery.
-Palliative care.
-Patient adherence, quality of life, satisfaction.
-Health economic evaluations.