Risk of fatigue and neuropathy in patients with advanced cancer treated with olaparib: A meta-analysis of randomized controlled trials

Ruiz-Schutz, V.C.; Gomes, L.; Oliveira, Cleyton Zanardo de; Mariano, Rodrigo; Almeida, Daniel Vargas Pivato de; Pimenta, Juliana Martins; Molin, Graziela Zibetti Dal; Kater, Fabio; Yamamura, Rosely; Maluf, Fernando C.; Schutz, Fabio A.B.

doi:10.1093/annonc/mdy285.189

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“…Their widespread use, however, induces some drug-related adverse reactions. The adverse reactions of PARPis include haematological toxicity (9,10), gastrointestinal toxicity (11), etc., and each drug also has its specific toxicities. As summarized in Table 1 (12)(13)(14)(15)(16), anemia, fatigue/asthenia, and nausea are three common adverse reactions for all PARPis.…”

Section: Introductionmentioning

confidence: 99%

PARP inhibitor-related haemorrhages: What does the real-world study say?

Wang

Guo²,

Zhang³

et al. 2023

Front. Oncol.

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BackgroundPARP inhibitors (PARPis) are novel molecular targeted therapeutics for inhibition of DNA repair in tumor cells, which are commonly used in ovarian cancer. Recent case reports have indicated that haemorrhages-related adverse events may be associated with PARPis. However, little is known about the characteristics and signal strength factors of this kind of adverse event.MethodsA pharmacovigilance study from January 2004 to March 2022 based on the FDA adverse event reporting system (FAERS) database was conducted by adopting the proportional imbalance method based on the four algorithms, including the reporting odds ratio (ROR), proportional reporting ratio (PRR), Bayesian confidence propagation neural networks (BCPNN) and multi-item gamma Poisson shrinker (MGPS).Results725 cases of PARPi-haemorrhages-related adverse events were identified with a fatality rate of 4.72% (30/725) and a median age of 67 years. About 88% of the adverse events occurred within 6 months, and the median duration (IQR) was 68 days. Most adverse events (n=477, 75.11%) were related to the treatment of niraparib. Importantly, niraparib exposure was associated with a significant increase in haemorrhages-related adverse events (ROR (95% CI), 1.13(1.03,1.23), PRR (χ2), 1.12(7.32), IC (IC 025), 0.17(0.15). In addition, petechiae, gingival bleeding, bloody urine, as well as rectal haemorrhage should be monitored when using niraparib.ConclusionRecognition and management of PARPi-haemorrhages-related adverse events is of significance to clinical practice. In this study, we provided a safety signal that haemorrhage-related adverse events should be monitored for when using niraparib. However, larger and more robust post-market safety studies are needed to improve the quality of this evidence.

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