PARP inhibitors in prostate cancers, is it time for combinations?

Author:

Teyssonneau Diego1ORCID,Dariane Charles2,Barret Eric3,Beauval Jean-Baptiste45,Brureau Laurent6,Fiard Gaëlle7,Fromont Gaëlle8,Créhange Gilles9,Gauthé Mathieu10,Ruffion Alain1112,Renard-Penna Raphaële13,Mathieu Romain1415,Sargos Paul16,Rouprêt Morgan17,Ploussard Guillaume45,Roubaud Guilhem18

Affiliation:

1. Department of Medical Oncology, Institut Bergonié, 229 Cours de l’Argonne, Bordeaux 33000, France

2. Department of Urology, Hôpital Européen Georges-Pompidou, APHP, Paris University, U1151 Inserm-INEM, Necker, Paris, France

3. Department of Urology, Institut Mutualiste Montsouris, Paris, France

4. Department of Urology, La Croix du Sud Hôpital, Quint Fonsegrives, France

5. IUCT-O, Toulouse, France

6. Department of Urology, CHU de Pointe-à-Pitre, University of Antilles, University of Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail) – UMR_S 1085, Pointe-à-Pitre, France

7. Department of Urology, Grenoble Alpes University Hospital, Université Grenoble Alpes, CNRS, Grenoble INP, TIMC-IMAG, Grenoble, France

8. Department of Pathology, CHRU Tours, Tours, France

9. Department of Radiation Oncology Curie Institute, Paris, France

10. Department of Nuclear Medicine, Scintep, Grenoble, France

11. Service d’Urologie Centre Hospitalier Lyon Sud, Hospices Civils de Lyon

12. Equipe 2, Centre d’Innovation en Cancérologie de Lyon (EA 3738 CICLY), Faculté de Médecine Lyon Sud, Université Lyon 1, Lyon, France

13. AP-HP, Radiology, Pitie-Salpetriere Hospital, Sorbonne University, Paris, France

14. Department of Urology, University of Rennes, Rennes, France

15. University of Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), Rennes, France

16. Department of Radiotherapy, Institut Bergonié, Bordeaux, Aquitaine, France

17. AP-HP, Urology, GRC 5 Predictive Onco-Uro, Pitie-Salpetriere Hospital, Sorbonne University, Paris, France

18. Department of Medical Oncology, Institut Bergonié, Bordeaux, Aquitaine, France

Abstract

Despite several improvements in outcomes, metastatic prostate cancer remains deadly. Alterations in the homologous recombination repair (HRR) pathway are associated with more aggressive disease. Olaparib and rucaparib, two poly-ADP-ribose polymerase (PARP) inhibitors, have received approval from the authorities of several countries for their anti-tumoral effects in patients with metastatic castration-resistant prostate cancers harboring HRR gene alterations, in particular BRCA2. More recently, it has been hypothesized that new hormonal therapies (NHTs) and PARP inhibitors (PARPi) could have synergistic actions and act independently of HRR deficiency. This review proposes to discuss the advantages and disadvantages of PARPi used as monotherapy or in combination with NHTs and whether there is a need for molecular selection.

Publisher

SAGE Publications

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