Risk-reducing salpingo-oophorectomy, natural menopause, and breast cancer risk: An international prospective cohort of BRCA1 and BRCA2 mutation carriers

Nasim Mavaddat, Antonis C. Antoniou, Thea M. Mooij, Maartje J. Hooning, Bernadette A. Heemskerk-Gerritsen, Catherine Noguès, Lilian Laborde, Emmanuel Breysse, Dominique Stoppa-Lyonnet, Marion Gauthier-Villars, Bruno Buecher, Olivier Caron, Emmanuelle Fourme-Mouret, Jean Pierre Fricker, Christine Lasset, Valérie Bonadona, Pascaline Berthet, Laurence Faivre, Elisabeth Luporsi, Véronique MariLaurence Gladieff, Paul Gesta, Hagay Sobol, François Eisinger, Catherine Noguès, Michel Longy, Catherine Dugast, Chrystelle Colas, Isabelle Coupier, Pascal Pujol, Carole Corsini, Alain Lortholary, Philippe Vennin, Claude Adenis, Tan Dat Nguyen, Capucine Delnatte, Julie Tinat, Isabelle Tennevet, Jean Marc Limacher, Christine Maugard, Yves Jean Bignon, Liliane Demange, Clotilde Penet, Hélène Dreyfus, Odile Cohen-Haguenauer, Laurence Venat-Bouvet, Dominique Leroux, Hélène Dreyfus, Hélène Zattara-Cannoni, Sandra Fert-Ferrer, Odile Bera, Catherine Noguès, Marion Gauthier-Villars, Olivier Caron, Paul Gesta, Pascal Pujol, Alain Lortholary, Steve Ellis, Daniel Barrowdale, Debra Frost, D. Gareth Evans, Louise Izatt, Julian Adlard, Ros Eeles, Carole Brewer, Marc Tischkowitz, Alex Henderson, Jackie Cook, Diana Eccles, F. B.L. Hogervorst, J. M. Collée, C. J. Van Asperen, A. R. Mensenkamp, M. G.E.M. Ausems, H. E.J. Meijers-Heijboer, K. Van Engelen, M. J. Blok, J. C. Oosterwijk, J. Verloop, E. Van Den Broek, Klaartje Van Engelen, Marian J.E. Mourits, Margreet G.E.M. Ausems, Linetta B. Koppert, John L. Hopper, Esther M. John, Wendy K. Chung, Irene L. Andrulis, Mary B. Daly, Saundra S. Buys, Javier Benitez, Trinidad Caldes, Anna Jakubowska, Jacques Simard, Christian F. Singer, Yen Tan, Edith Olah, Marie Navratilova, Lenka Foretova, Anne Marie Gerdes, Marie José Roos-Blom, Flora E. Van Leeuwen, Brita Arver, Håkan Olsson, Rita K. Schmutzler, Christoph Engel, Karin Kast, Kelly Anne Phillips, Mary Beth Terry, Roger L. Milne, David E. Goldgar, Matti A. Rookus, Nadine Andrieu, Douglas F. Easton

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    Résumé

    Background: The effect of risk-reducing salpingo-oophorectomy (RRSO) on breast cancer risk for BRCA1 and BRCA2 mutation carriers is uncertain. Retrospective analyses have suggested a protective effect but may be substantially biased. Prospective studies have had limited power, particularly for BRCA2 mutation carriers. Further, previous studies have not considered the effect of RRSO in the context of natural menopause. Methods: A multi-centre prospective cohort of 2272 BRCA1 and 1605 BRCA2 mutation carriers was followed for a mean of 5.4 and 4.9 years, respectively; 426 women developed incident breast cancer. RRSO was modelled as a time-dependent covariate in Cox regression, and its effect assessed in premenopausal and postmenopausal women. Results: There was no association between RRSO and breast cancer for BRCA1 (HR = 1.23; 95% CI 0.94-1.61) or BRCA2 (HR = 0.88; 95% CI 0.62-1.24) mutation carriers. For BRCA2 mutation carriers, HRs were 0.68 (95% CI 0.40-1.15) and 1.07 (95% CI 0.69-1.64) for RRSO carried out before or after age 45 years, respectively. The HR for BRCA2 mutation carriers decreased with increasing time since RRSO (HR = 0.51; 95% CI 0.26-0.99 for 5 years or longer after RRSO). Estimates for premenopausal women were similar. Conclusion: We found no evidence that RRSO reduces breast cancer risk for BRCA1 mutation carriers. A potentially beneficial effect for BRCA2 mutation carriers was observed, particularly after 5 years following RRSO. These results may inform counselling and management of carriers with respect to RRSO.

    langue originaleAnglais
    Numéro d'article8
    journalBreast Cancer Research
    Volume22
    Numéro de publication1
    Les DOIs
    étatPublié - 16 janv. 2020

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