Cost-Effectiveness Analysis of Biomarker Testing to Guide First-Line PARP Inhibitor Maintenance for Patients with Advanced Ovarian Cancer After Response to First-Line Platinum Chemotherapy in the USA

Targeted Oncology(2023)

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摘要
Background Poly(ADP-ribose) polymerase inhibitor maintenance treatments are available for platinum-sensitive advanced ovarian cancer. Olaparib (O) is available for BRCA mutation patients or in combination with bevacizumab (O+B) for patients with homologous recombination deficiency (HRD+); niraparib (N) is available for all patients. Objective This study aimed to evaluate the cost effectiveness of biomarker testing and maintenance treatments (mTx) with poly(ADP-ribose) polymerase inhibitor in platinum-sensitive advanced ovarian cancer in the USA. Patients and Methods Ten strategies were evaluated (S1–S10), representing biomarker testing (none, BRCA or HRD), and mTx (O, O+B, N or B). PAOLA-1 data were used to build a model estimating progression-free survival (PFS), second PFS (PFS2) and overall survival for O+B. PFS was modelled through mixture cure models; PFS2 and overall survival were modelled by standard parametric models. Hazard ratios of PFS for O+B versus B, N and O were obtained from the literature to estimate PFS for B, N and O. PFS2 and OS for B, N and O were informed by PFS benefits. Results S2 (no testing, B) had the lowest cost while S10 (HRD testing, O+B for HRD+ and B for HRD−) had the highest quality-adjusted life-years (QALYs). All niraparib strategies were dominated. S2, S4 (BRCA testing, O for BRCA+ and B for BRCA−), S6 (BRCA testing, olaparib plus bevacizumab for BRCA + and bevacizumab for BRCA −) and S10 were the non-dominated strategies with an incremental cost-effectiveness ratio of $29,095/QALY, $33,786/QALY and $52,948/QALY for S4 versus S2, S6 versus S4 and S10 versus S6, respectively. Conclusions Homologous recombination deficiency testing followed by O+B for HRD+ and B for HRD− is a highly cost-effective strategy for patients with platinum-sensitive advanced ovarian cancer. A HRD biomarker-guided approach provides most QALYs with good economic value.
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关键词
advanced ovarian cancer,biomarker testing,chemotherapy,cost-effectiveness,first-line,first-line
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