Treatment efficacy of ribociclib or palbociclib plus letrozole in hormone receptor-positive/HER2-negative metastatic breast cancer

Author:

Kahraman Seda1ORCID,Erul Enes2ORCID,Seyyar Mustafa3,Gumusay Ozge4,Bayram Ertugrul5,Demirel Burcin Cakan6,Acar Omer7,Aksoy Sercan2,Baytemur Naziyet Kose8,Sahin Elif3,Cabuk Devrim3,Basaran Gul4,Paydas Semra5ORCID,Yaren Arzu6,Guven Deniz Can2ORCID,Erdogan Atike Pinar7,Demirci Umut8,Yasar Alper9,Bayoglu İbrahim Vedat9,Hizal Mutlu1ORCID,Gulbagci Burcu10,Paksoy Nail11,Davarci Sena Ece12,Yilmaz Funda13,Dogan Ozlem14,Orhan Sibel Oyucu15,Kayikcioglu Erkan16ORCID,Aytac Ali17,Keskinkilic Merve18,Mocan Eda Eylemer19ORCID,Unal Olcun Umit20,Aydin Esra21,Yucel Hakan22,Isik Deniz23,Eren Onder24,Uluc Basak Oyan4,Ozcelik Melike25,Hacibekiroglu Ilhan10,Aydiner Adnan11,Demir Hacer12,Oksuzoglu Berna13,Cilbir Ebru14,Cubukcu Erdem15,Cetin Bulent16,Oktay Esin17,Erol Cihan1ORCID,Okutur Sadi Kerem26,Yildirim Nilgun27,Alkan Ali28ORCID,Selcukbiricik Fatih29,Aksoy Asude30,Karakas Yusuf31,Ozkanli Gulhan32,Duman Berna Bozkurt33ORCID,Aydin Dincer34,Dulgar Ozgecan35,Er Muhammed Muhiddin36,Teker Fatih22,Yavuzsen Tugba18,Aykan Musa Baris37,Inal Ali38,Iriagac Yakup39,Kalkan Nurhan Onal40,Keser Murat20,Sakalar Teoman35,Menekse Serkan41,Kut Engin41,Bilgin Burak42,Karaoglanoglu Muge43,Sunar Veli44,Ozdemir Ozlem45,Turhal Nazim Serdar46,Karadurmus Nuri37,Yalcin Bulent1,Nahit Sendur Mehmet Ali1

Affiliation:

1. Department of Medical Oncology, Ankara Yildirim Beyazit University, Ankara City Hospital, Ankara, 06800, Turkey

2. Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, 06590, Turkey

3. Department of Medical Oncology, Kocaeli University Medical Faculty Hospital, Kocaeli, 41000, Turkey

4. Department of Medical Oncology, Acibadem University, School of Medicine, Istanbul, 34750, Turkey

5. Department of Medical Oncology, Cukurova University, Adana, 01330, Turkey

6. Department of Medical Oncology, Pamukkale University Hospital, Denizli, 20160, Turkey

7. Department of Medical Oncology, Manisa Celal Bayar University Hospital, Mersin, 45120, Turkey

8. Department of Medical Oncology, Ankara Memorial Hospital, Ankara, 06520, Turkey

9. Department of Medical Oncology, Marmara University Pendik Research & Application Hospital, Istanbul, 34899, Turkey

10. Department of Medical Oncology, Sakarya University School of Medicine, Sakarya, 54187, Turkey

11. Department of Medical Oncology, Istanbul University, Istanbul, 34093, Turkey

12. Department of Medical Oncology, Afyonkarahisar Health Sciences University, Afyonkarahisar, 03200, Turkey

13. Department of Medical Oncology, Dr. Abdurrahman Yurtaslan Ankara Oncology Training & Research Hospital, Ankara, 06200, Turkey

14. Department of Medical Oncology, Ankara Etlik City Hospital, Ankara, 06170, Turkey

15. Department of Medical Oncology, Uludag University, Bursa, 16059, Turkey

16. Department of Medical Oncology, Suleyman Demirel University, Isparta, 32260, Turkey

17. Department of Medical Oncology, Aydin Adnan Menderes University Training & Research Hospital, Aydin, 09100, Turkey

18. Department of Medical Oncology, Dokuz Eylül University Research & Application Hospital, Izmir, 35340, Turkey

19. Department Of Medical Oncology, Ankara University, Ankara, 06080, Turkey

20. Department of Medical Oncology, Tepecik Training & Research Hospital, Izmir, 35180, Turkey

21. Department of Medical Oncology, Recep Tayyip Erdoğan University Training & Research Hospital, Rize, 53020, Turkey

22. Department of Medical Oncology, Gaziantep University, Gaziantep, 27580, Turkey

23. Department of Medical Oncology, Kocaeli Medical Park Hospital, Kocaeli, 41140, Turkey

24. Department of Medical Oncology, Selcuk University Medical Faculty Hospital, Konya, 42250, Turkey

25. Department of Medical Oncology, Umraniye Training & Research Hospital, Istanbul, 34764, Turkey

26. Department of Medical Oncology, Istanbul Arel University, Bahcelievler Memorial Hospital, Istanbul, 34537, Turkey

27. Department of Medical Oncology, Firat University Hospital, Elazig, 23200, Turkey

28. Department of Medical Oncology, Muğla Sıtkı Koçman University Training & Research Hospital, Mugla, 48000, Turkey

29. Department of Medical Oncology, Koç University Hospital, Istanbul, 34010, Turkey

30. Department of Medical Oncology, Elazig Fethi Sekin City Hospital, Elazig, 23280, Turkey

31. Department of Medical Oncology, Acıbadem Bodrum Hospital, Mugla, 48420, Turkey

32. Department of Medical Oncology, Canakkale Onsekiz Mart University Research & Practice Hospital, Canakkale, 17100, Turkey

33. Department of Medical Oncology, Adana City Training & Research Hospital, Adana, 01230, Turkey

34. Department of Medical Oncology, Kocaeli Derince Training & Research Hospital, Kocaeli, 41310, Turkey

35. Department of Medical Oncology, Kahramanmaras Necip Fazil City Hospital, Kahramanmaras, 46050, Turkey

36. Department of Medical Oncology, Necmettin Erbakan University Meram Medical Faculty Hospital, Konya, 42080, Turkey

37. Department of Medical Oncology, Gulhane Training & Research Hospital, Ankara, 06010, Turkey

38. Department of Medical Oncology, Mersin City Hospital, Mersin, 96015, Turkey

39. Department of Medical Oncology, Namik Kemal University Health Application & Research Hospital, Tekirdag, 59030, Turkey

40. Department of Medical Oncology, Van Yüzüncü Yıl University Dursun Odabas Hospital, Van, 65090, Turkey

41. Department of Medical Oncology, Manisa City Hospital, Manisa, 45040, Turkey

42. Department of Medical Oncology, Konya City Hospital, Konya, 42020, Turkey

43. Department of Medical Oncology, Ordu State Hospital, Ordu, 52200, Turkey

44. Department of Medical Oncology, Aydin Ataturk State Hospital, Aydin, 09020, Turkey

45. Department of Medical Oncology, Izmir Bozyaka Training & Research Hospital, Izmir, 35170, Turkey

46. Department of Medical Oncology, Anadolu Medical Center, Istanbul, 34758, Turkey

Abstract

Background: Ribociclib, palbociclib and abemaciclib are currently approved CDK4/6 inhibitors along with aromatase inhibitors as the first-line standard-of-care for patients with hormone receptor-positive, HER2-negative metastatic breast cancer. Methods: The authors report retrospective real-life data for 600 patients with estrogen receptor- and/or progesterone receptor-positive and HER2-negative metastatic breast cancer who were treated with ribociclib and palbociclib in combination with letrozole. Results & conclusion: The results demonstrated that the combination of palbociclib or ribociclib with letrozole has similar progression-free survival and overall survival benefit in real life for the patient group with similar clinical features. Specifically, endocrine sensitivity may be a factor to be considered in the treatment preference.

Publisher

Future Medicine Ltd

Subject

Cancer Research,Oncology,General Medicine

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