POLO: Health-related quality of life (HRQoL) of olaparib maintenance treatment versus placebo in patients with a germline BRCA mutation and metastatic pancreatic cancer (mPC)

Abstract

Background: In the Phase III POLO trial (NCT02184195) patients (pts) with a germline BRCA1 and/or BRCA2 mutation (gBRCAm) and mPC derived a statistically significant and clinically meaningful progression-free survival benefit from maintenance olaparib compared with placebo. HRQoL assessment was a predefined secondary objective. Method(s): Pts with a gBRCAm and mPC whose disease had not progressed during first-line platinum-based chemotherapy were randomized to receive maintenance olaparib tablets (300 mg bid) or placebo. Pts completed the EORTC QLQ-C30 questionnaire at baseline and every 4 wks until discontinuation, with calculated scores ranging from 1-100. A change of >= 10 points was predefined as clinically meaningful improvement (increase) or deterioration (decrease) for global HRQoL and physical function score. Overall adjusted mean change from baseline was analysed using a mixed model for repeated measures. Time to sustained clinically meaningful deterioration (TCMD) was analysed using a log-rank test. Result(s): Analyses were conducted in 89/92 olaparib pts and 58/62 placebo pts with evaluable baseline forms (overall compliance was 96.6% and 94.8%). There was no difference between arms for global HRQoL score (Table). The adjusted mean difference for physical function scale did not reach the threshold considered to be clinically meaningful. Global HRQoL and physical function remained relatively stable over time. There was no difference in TCMD for olaparib versus placebo for global HRQoL (median 21.2 vs 6.0 mo, respectively; hazard ratio 0.72 [95% CI 0.41-1.27]) or physical function (medians not reached, 1.38 [0.73-2.63]). [Table presented] Conclusion(s): HRQoL was preserved during maintenance olaparib treatment with no meaningful difference versus placebo. Findings support the observed clinical benefit of maintenance olaparib in pts with a gBRCAm and mPC. Clinical trial identification: NCT02184195. Editorial acknowledgement: Debbi Gorman, from Mudskipper Business, Ltd, funded by AstraZeneca and Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Kenilworth, NJ, U.S.A. Legal entity responsible for the study: AstraZeneca and Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Kenilworth, NJ, U.S.A. Funding(s): AstraZeneca and Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Kenilworth, NJ, U.S.A. Disclosure: P. Hammel: Research grant / Funding (institution): Celgene; Research grant / Funding (institution): AstraZeneca; Research grant / Funding (institution), Non-remunerated activity/ies: Erythec; Honoraria (self), Research grant / Funding (institution): Halozyme. H.L. Kindler: Advisory / Consultancy, Research grant / Funding (institution): AstraZeneca; Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: Merck; Advisory / Consultancy: Aldeyra Therapeutics; Advisory / Consultancy: Astellas; Advisory / Consultancy, Travel / Accommodation / Expenses: Boehringer-Ingelheim; Advisory / Consultancy, Research grant / Funding (institution): Bristol-Myers Squibb; Advisory / Consultancy: Erytech; Advisory / Consultancy: Five Prime Therapeutics; Advisory / Consultancy: Ipsen Pharmaceuticals; Advisory / Consultancy: Kyowa; Advisory / Consultancy, Travel / Accommodation / Expenses: Paredox Therapeutics; Research grant / Funding (institution): Aduro; Research grant / Funding (institution): Bayer; Research grant / Funding (institution): Deciphera; Research grant / Funding (institution): GlaxoSmithKline; Research grant / Funding (institution): MedImmune; Research grant / Funding (institution): Lilly; Research grant / Funding (institution): Polaris; Research grant / Funding (institution): Verastem. M. Reni: Honoraria (self), Research grant / Funding (institution), Non-remunerated activity/ies: Celgene; Honoraria (self): Baxalta; Honoraria (self): Shire; Honoraria (self): Eli-Liily; Honoraria (self): Pfizer; Honoraria (self): Novocure; Honoraria (self): Novartis; Advisory / Consultancy, Steering committee member: AstraZeneca; Advisory / Consultancy, Steering committee member: Boston Pharmaceuticals. E. Van Cutsem: Research grant / Funding (institution): Amgen; Advisory / Consultancy, Research grant / Funding (institution): Bayer; Research grant / Funding (institution): Boehringer Ingelheim; Advisory / Consultancy, Research grant / Funding (institution): Celgene; Research grant / Funding (institution): Ipsen; Advisory / Consultancy, Research grant / Funding (institution): Lilly; Research grant / Funding (institution): Roche; Advisory / Consultancy, Research grant / Funding (institution): Merck Sharp & Dohme; Advisory / Consultancy, Research grant / Funding (institution): Merck KGaA; Advisory / Consultancy, Research grant / Funding (institution): Novartis; Advisory / Consultancy, Research grant / Funding (institution): Roche; Advisory / Consultancy, Research grant / Funding (institution): Servier; Advisory / Consultancy: AstraZeneca; Advisory / Consultancy: Bristol-Myers Squibb. T. Macarulla Mercade: Advisory / Consultancy: Genzyme; Advisory / Consultancy, Research grant / Funding (institution): Roche; Advisory / Consultancy, Travel / Accommodation / Expenses: Sanofi Aventis; Advisory / Consultancy: Shire; Advisory / Consultancy: Tesaro; Advisory / Consultancy: Baxalta; Advisory / Consultancy, Research grant / Funding (institution): Celgene; Travel / Accommodation / Expenses: H3 Biomedicine; Advisory / Consultancy: QED Therapeutics; Research grant / Funding (institution): Agios pharmaceuticals, Aslan pharmaceuticals; Research grant / Funding (institution): AstraZeneca; Research grant / Funding (institution), Travel / Accommodation / Expenses: Bayer; Research grant / Funding (institution): Genentech; Research grant / Funding (institution): Halozyme, Inc, Immunomedics, Merrimack, Millennium; Research grant / Funding (institution): Lilly; Research grant / Funding (institution): Novartis Farmaceutica S.A.; Research grant / Funding (institution): Novocure GmBH; Research grant / Funding (institution): Oncomed, Pharmacyclics; Research grant / Funding (institution): Pfizer S.L.U.; Travel / Accommodation / Expenses: Merck. M.J. Hall: Research grant / Funding (institution), Travel / Accommodation / Expenses, Non-remunerated activity/ies: AstraZeneca; Travel / Accommodation / Expenses, Non-remunerated activity/ies, Non-remunerated activities relate to collaborative research: Caris Life Sciences; Non-remunerated activity/ies, Collaborative research: Myriad; Non-remunerated activity/ies, Collaborative research: Ambry; Non-remunerated activity/ies, Collaborative research: Invitae; Non-remunerated activity/ies, Collaborative research: Foundation Medicine; Non-remunerated activity/ies: Merck. J.O. Park: Honoraria (self), Advisory / Consultancy, Research grant / Funding (self): Celgene; Honoraria (self), Advisory / Consultancy: Sanofi; Honoraria (self), Advisory / Consultancy: Shire; Advisory / Consultancy: Merck; Advisory / Consultancy: Sereno. D. Arnold: Honoraria (self): AstraZeneca; Honoraria (self), Non-remunerated activity/ies: Bayer; Honoraria (self), Non-remunerated activity/ies: Bristol-Myers Squibb; Honoraria (self): Biocompatibles; Honoraria (self): Eli Lilly; Honoraria (self), Non-remunerated activity/ies: Merck Sharpe & Dohme; Honoraria (self), Non-remunerated activity/ies: Servier; Honoraria (self), Non-remunerated activity/ies: Sanofi; Honoraria (self), Non-remunerated activity/ies: Roche; Honoraria (self): Terumo; Honoraria (self): Sirtex. D. Oh: Research grant / Funding (institution): AstraZeneca; Advisory / Consultancy: Novartis; Advisory / Consultancy: Genentech/ Roche; Advisory / Consultancy: Merck Serono; Advisory / Consultancy: Bayer; Advisory / Consultancy: Taiho; Advisory / Consultancy: Aslan; Advisory / Consultancy: Halozyme. A. Reinacher-Schick: Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Amgen; Honoraria (self), Advisory / Consultancy: Baxalta; Honoraria (self), Advisory / Consultancy: Bristol-Myers Squibb; Honoraria (self), Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: Celgene; Honoraria (self), Research grant / Funding (institution): Ipsen; Honoraria (self), Advisory / Consultancy, Research grant / Funding (institution): Lilly; Honoraria (self), Advisory / Consultancy: Merck Serono; Honoraria (self), Advisory / Consultancy: Merck Sharpe & Dohme; Honoraria (self), Advisory / Consultancy: Pfizer; Honoraria (self), Advisory / Consultancy, Research grant / Funding (institution): Roche; Honoraria (self), Advisory / Consultancy: Sanofi-Aventis; Honoraria (self), Advisory / Consultancy, Travel / Accommodation / Expenses: Servier; Research grant / Funding (institution): AstraZeneca. G. Tortora: Honoraria (self), Advisory / Consultancy: Celgene; Honoraria (self), Advisory / Consultancy, Research grant / Funding (institution), Travel / Accommodation / Expenses: Merck; Honoraria (self), Advisory / Consultancy: Incyte; Honoraria (self), Advisory / Consultancy, Research grant / Funding (self), Travel / Accommodation / Expenses: Novartis. H. Algul: Honoraria (self): Celgene; Honoraria (self), Travel / Accommodation / Expenses: Servier; Research grant / Funding (institution): Chugai. E.M. O'Reilly: Advisory / Consultancy, Including spouse: 3DMedcare, Boston Scientific, CytomX, Daiichi, Debio, Delcath, Exelixis, Alignmed, Antengene, Aptus, Beigene, Bioline, Bridgebio, Carsgen, Aslan, Genoscience, Hengrui Inovio, LAM, Loxo, Mina, Novella, Onxeo, PCI Biotech, Pieris, QED, Redhill, Silenseed,; Research grant / Funding (institution), Including spouse: Actabiologica, Incyte, Array, Celgene, Mabvax, Oncoquest, Polaris, Puma; Advisory / Consultancy, Research grant / Funding (institution), Including spouse: Agios, Halozyme, Casi; Advisory / Consultancy, Including spouse: Amgen; Advisory / Consultancy, Including spouse: Astellas; Advisory / Consultancy, Research grant / Fund