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The efficacy of palbociclib and ribociclib in the first-line treatment of metastatic hormone receptor-positive, human epidermal growth factor receptor 2-negative breast cancer in male patients: a Turkish oncology group (TOG) study

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dc.creator Hafızoğlu, Emre
dc.creator Altıntaş, Yunus Emre
dc.creator Keskinkılıç, Merve
dc.creator Chalabiyev, Elvin
dc.creator Çelebi, Abdussamet
dc.creator Dursun, Bengü
dc.creator Kapar, Caner
dc.creator Özen, Miraç
dc.creator Acar, Ömer
dc.creator Dülgar, Özgecan
dc.creator Kut, Engin
dc.creator Biter, Sedat
dc.creator Kus, Fatih
dc.creator Almuradova, Elvina
dc.creator Erdoğan, Atike Pınar
dc.creator KAYIKÇIOĞLU, Erkan
dc.creator Saray, Seray
dc.creator KUTLU, Yasin
dc.creator Güven, Deniz Can
dc.creator Şimşek, Eda Tanrıkulu
dc.creator Üskent, Necdet
dc.creator Kemal, Yasemin
dc.creator Kılıçkap, Saadettin
dc.creator Mutlu, Emel
dc.creator Aykan, Musa Barış
dc.creator Korkmaz, Mustafa
dc.creator Yalçın, Selim
dc.creator Şakalar, Teoman
dc.creator Celayir, Özde Melisa
dc.creator Yıldırım, Hasan Çağrı
dc.creator Aslan, Ferit
dc.creator Çakar, Burcu
dc.creator Açıkgöz, Özgür
dc.creator Aksoy, Sercan
dc.date 2024-03-01T00:00:00Z
dc.date.accessioned 2025-02-25T10:21:28Z
dc.date.available 2025-02-25T10:21:28Z
dc.identifier 4b598838-cb04-4c19-9aea-983da262c152
dc.identifier 10.1007/s10147-023-02460-5
dc.identifier https://avesis.sdu.edu.tr/publication/details/4b598838-cb04-4c19-9aea-983da262c152/oai
dc.identifier.uri http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/99608
dc.description Introduction: Male breast cancer, comprising approximately 1% of all breast cancer cases, often leads to the exclusion of male patients as a criterion in clinical trials. While the efficacy of Cyclin-dependent kinases 4 and 6 (CDK 4/6) inhibitors has been established in metastatic hormone receptor-positive (HR +) and human epidermal growth factor receptor 2-negative (HER2 −) breast cancer in women, limited data exist on their effectiveness in male patients. We aimed to evaluate the efficacy and safety of palbociclib or ribociclib in male patients with breast cancer. Methods: This study is a multicenter, retrospective study. We included male patients with HR + and HER2-metastatic breast cancer who received palbociclib or ribociclib as first-line treatment. Our primary endpoints were progression-free survival (PFS), overall response rates (ORR), and drug-related adverse effects. Results: A total of 46 male patients from 27 institutions were enrolled. The median age at initiation of CDK 4/6 inhibitors was 63.64 ± 13.69 years, with a median follow-up of 21.33 (95% CI 14.92–27.74) months. The ORR were 84% for palbociclib and 76.2% for ribociclib. The mPFS for the entire cohort was 28.06 months (95% CI 18.70–37.42). No significant difference in PFS was observed between palbociclib and ribociclib (mPFS: 24.46 months (95% CI 11.51–37.42) vs 28.33 months (95% CI 14.77–41.88), respectively, p = 0.211). No new adverse events were reported. Discussion: This study demonstrates that palbociclib and ribociclib are effective and safe options for first-line treatment in male patients with HR + /HER2 − metastatic breast cancer. However, further prospective studies are warranted to establish their efficacy in this population.
dc.language eng
dc.rights info:eu-repo/semantics/closedAccess
dc.title The efficacy of palbociclib and ribociclib in the first-line treatment of metastatic hormone receptor-positive, human epidermal growth factor receptor 2-negative breast cancer in male patients: a Turkish oncology group (TOG) study
dc.type info:eu-repo/semantics/article


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