Association of the CHEK2 c.1100delC variant, radiotherapy, and systemic treatment with contralateral breast cancer risk and breast cancer-specific survival

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https://hdl.handle.net/10037/32850
DOI
https://doi.org/10.1002/cam4.6272
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Date
2023-07-03
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Author
Morra, Anna; Schreurs, Maartje A. C.; Andrulis, Irene L.; Anton-Culver, Hoda; Augustinsson, Annelie; Beckmann, Matthias W.; Behrens, Sabine; Bojesen, Stig E.; Bolla, Manjeet K.; Brauch, Hiltrud; Broeks, Annegien; Buys, Saundra S.; Camp, Nicola J.; Castelao, Jose E.; Cessna, Melissa H.; Chang-Claude, Jenny; Chung, Wendy K.; Sahlberg, Guro Kristine Kleivi; Børresen-Dale, Anne-Lise; Gram, Inger Torhild; Olsen, Karina Standahl; Engebråten, Olav; Naume, Bjørn; Geisler, Jürgen; Grenaker, Grethe Irene; Colonna, Sarah V.; Couch, Fergus J.; Cox, Angela; Cross, Simon S.; Czene, Kamila; Daly, Mary B.; Dennis, Joe; Devilee, Peter; Dörk, Thilo; Dunning, Alison M.; Dwek, Miriam; Easton, Douglas F.; Eccles, Diana M.; Eriksson, Mikael; Evans, D. Gareth; Fasching, Peter A.; Fehm, Tanja N.; Figueroa, Jonine D.; Flyger, Henrik; Gabrielson, Marike; Gago-Dominguez, Manuela; García-Closas, Montserrat; García-Sáenz, José A.; Genkinger, Jeanine; Grassmann, Felix; Gündert, Melanie; Hahnen, Eric; Haiman, Christopher A.; Hamann, Ute; Harrington, Patricia A.; Hartikainen, Jaana M.; Hoppe, Reiner; Hopper, John L.; Houlston, Richard S.; Howell, Anthony; Jakubowska, Anna; Janni, Wolfgang; Jernström, Helena; John, Esther M.; Johnson, Nichola; Jones, Michael E.; Kristensen, Vessela N.; Kurian, Allison W.; Lambrechts, Diether; Le Marchand, Loic; Lindblom, Annika; Lubiński, Jan; Lux, Michael P.; Mannermaa, Arto; Mavroudis, Dimitrios; Mulligan, Anna Marie; Muranen, Taru A.; Nevanlinna, Heli; Nevelsteen, Ines; Neven, Patrick; Newman, William G.; Obi, Nadia; Offit, Kenneth; Olshan, Andrew F.; Park-Simon, Tjoung-Won; Patel, Alpa V.; Peterlongo, Paolo; Phillips, Kelly-Anne; Plaseska-Karanfilska, Dijana; Polley, Eric C.; Presneau, Nadege; Pylkäs, Katri; Rack, Brigitte; Radice, Paolo; Rashid, Muhammad U.; Rhenius, Valerie; Robson, Mark; Romero, Atocha; Saloustros, Emmanouil; Sawyer, Elinor J.; Schmutzler, Rita K.; Schuetze, Sabine; Scott, Christopher; Shah, Mitul; Smichkoska, Snezhana; Southey, Melissa C.; Tapper, William J.; Teras, Lauren R.; Tollenaar, Rob A. E. M.; Tomczyk, Katarzyna; Tomlinson, Ian; Troester, Melissa A.; Vachon, Celine M.; van Veen, Elke M.; Wang, Qin; Wendt, Camilla; Wildiers, Hans; Winqvist, Robert; Ziogas, Argyrios; Hall, Per; Pharoah, Paul D. P.; Adank, Muriel A.; Hollestelle, Antoinette; Schmidt, Marjanka K.; Hooning, Maartje J.
Abstract
Background - Breast cancer (BC) patients with a germline CHEK2 c.1100delC variant have an increased risk of contralateral BC (CBC) and worse BC-specific survival (BCSS) compared to non-carriers.

Aim - To assessed the associations of CHEK2 c.1100delC, radiotherapy, and systemic treatment with CBC risk and BCSS.

Methods - Analyses were based on 82,701 women diagnosed with a first primary invasive BC including 963 CHEK2 c.1100delC carriers; median follow-up was 9.1 years. Differential associations with treatment by CHEK2 c.1100delC status were tested by including interaction terms in a multivariable Cox regression model. A multi-state model was used for further insight into the relation between CHEK2 c.1100delC status, treatment, CBC risk and death.

Results - There was no evidence for differential associations of therapy with CBC risk by CHEK2 c.1100delC status. The strongest association with reduced CBC risk was observed for the combination of chemotherapy and endocrine therapy [HR (95% CI): 0.66 (0.55–0.78)]. No association was observed with radiotherapy. Results from the multi-state model showed shorter BCSS for CHEK2 c.1100delC carriers versus non-carriers also after accounting for CBC occurrence [HR (95% CI): 1.30 (1.09–1.56)].

Conclusion - Systemic therapy was associated with reduced CBC risk irrespective of CHEK2 c.1100delC status. Moreover, CHEK2 c.1100delC carriers had shorter BCSS, which appears not to be fully explained by their CBC risk.

Publisher
Wiley
Citation
Morra, Schreurs, Andrulis, Anton-Culver, Augustinsson, Beckmann, Behrens, Bojesen, Bolla, Brauch, Broeks, Buys, Camp, Castelao, Cessna, Chang-Claude, Chung, Sahlberg, Børresen-Dale, Gram, Olsen, Engebråten, Naume, Geisler, Grenaker, Colonna, Couch, Cox, Cross, Czene, Daly, Dennis, Devilee, Dörk, Dunning, Dwek, Easton, Eccles, Eriksson, Evans, Fasching, Fehm, Figueroa, Flyger, Gabrielson, Gago-Dominguez, García-Closas, García-Sáenz, Genkinger, Grassmann, Gündert, Hahnen, Haiman, Hamann, Harrington, Hartikainen, Hoppe, Hopper, Houlston, Howell, Jakubowska, Janni, Jernström, John, Johnson, Jones, Kristensen, Kurian, Lambrechts, Le Marchand, Lindblom, Lubiński, Lux, Mannermaa, Mavroudis, Mulligan, Muranen, Nevanlinna, Nevelsteen, Neven, Newman, Obi, Offit, Olshan, Park-Simon, Patel, Peterlongo, Phillips, Plaseska-Karanfilska, Polley, Presneau, Pylkäs, Rack, Radice, Rashid, Rhenius, Robson, Romero, Saloustros, Sawyer, Schmutzler, Schuetze, Scott, Shah, Smichkoska, Southey, Tapper, Teras, Tollenaar, Tomczyk, Tomlinson, Troester, Vachon, van Veen, Wang, Wendt, Wildiers, Winqvist, Ziogas, Hall, Pharoah, Adank, Hollestelle, Schmidt, Hooning. Association of the CHEK2 c.1100delC variant, radiotherapy, and systemic treatment with contralateral breast cancer risk and breast cancer-specific survival. Cancer Medicine. 2023;12(15):16142-16162
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