Overall survival and subsequent therapy patterns in Japanese patients with ER+/HER2- advanced breast cancer treated with palbociclib plus letrozole in the first-line setting: a final analysis.

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Title: Overall survival and subsequent therapy patterns in Japanese patients with ER+/HER2- advanced breast cancer treated with palbociclib plus letrozole in the first-line setting: a final analysis.
Authors: Takahashi M; Breast Surgery, Hokkaido University Hospital, Sapporo, Hokkaido, Japan. masato.takahashi0725@gmail.com., Yasojima H; Department of Surgery, Breast Oncology, NHO Osaka National Hospital, Osaka, Japan., Osako T; Breast Center, Kumamoto Shinto General Hospital, Kumamoto, Japan., Inoue K; Department of Breast Care, Saitama Medical Center, Saitama, Japan., Kawashima M; Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan., Maeda H; Department of Breast Surgery, National Hospital Organization Hokkaido Cancer Center, Sapporo, Hokkaido, Japan., Ito M; Breast Surgery, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan., Sagara Y; Breast Surgery, Sagara Hospital, Kagoshima, Japan., Yonemori K; Medical Oncology, National Cancer Center Hospital, Tokyo, Japan., Hattori M; Aichi Breast Clinic Hirabari, Nagoya, Japan.; Department of Breast Oncology, Aichi Cancer Center, Nagoya, Japan., Yamamoto N; Division of Breast Surgery, Chiba Cancer Center, Chiba, Japan., Muramatsu Y; Oncology Medical Affairs , Pfizer Japan Inc, Tokyo, Japan., Matsui A; Oncology Medical Affairs , Pfizer Japan Inc, Tokyo, Japan., Masuda N; Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Source: Breast cancer (Tokyo, Japan) [Breast Cancer] 2025 Nov; Vol. 32 (6), pp. 1482-1490. Date of Electronic Publication: 2025 Aug 21.
Publication Type: Journal Article; Multicenter Study; Clinical Trial, Phase II
Journal Info: Publisher: Maruzen Co Country of Publication: Japan NLM ID: 100888201 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1880-4233 (Electronic) Linking ISSN: 13406868 NLM ISO Abbreviation: Breast Cancer Subsets: MEDLINE
Database: MEDLINE Ultimate
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  Data: Overall survival and subsequent therapy patterns in Japanese patients with ER+/HER2- advanced breast cancer treated with palbociclib plus letrozole in the first-line setting: a final analysis.
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  Data: <searchLink fieldCode="AU" term="%22Takahashi+M%22">Takahashi M</searchLink>; Breast Surgery, Hokkaido University Hospital, Sapporo, Hokkaido, Japan. masato.takahashi0725@gmail.com.<br /><searchLink fieldCode="AU" term="%22Yasojima+H%22">Yasojima H</searchLink>; Department of Surgery, Breast Oncology, NHO Osaka National Hospital, Osaka, Japan.<br /><searchLink fieldCode="AU" term="%22Osako+T%22">Osako T</searchLink>; Breast Center, Kumamoto Shinto General Hospital, Kumamoto, Japan.<br /><searchLink fieldCode="AU" term="%22Inoue+K%22">Inoue K</searchLink>; Department of Breast Care, Saitama Medical Center, Saitama, Japan.<br /><searchLink fieldCode="AU" term="%22Kawashima+M%22">Kawashima M</searchLink>; Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.<br /><searchLink fieldCode="AU" term="%22Maeda+H%22">Maeda H</searchLink>; Department of Breast Surgery, National Hospital Organization Hokkaido Cancer Center, Sapporo, Hokkaido, Japan.<br /><searchLink fieldCode="AU" term="%22Ito+M%22">Ito M</searchLink>; Breast Surgery, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan.<br /><searchLink fieldCode="AU" term="%22Sagara+Y%22">Sagara Y</searchLink>; Breast Surgery, Sagara Hospital, Kagoshima, Japan.<br /><searchLink fieldCode="AU" term="%22Yonemori+K%22">Yonemori K</searchLink>; Medical Oncology, National Cancer Center Hospital, Tokyo, Japan.<br /><searchLink fieldCode="AU" term="%22Hattori+M%22">Hattori M</searchLink>; Aichi Breast Clinic Hirabari, Nagoya, Japan.; Department of Breast Oncology, Aichi Cancer Center, Nagoya, Japan.<br /><searchLink fieldCode="AU" term="%22Yamamoto+N%22">Yamamoto N</searchLink>; Division of Breast Surgery, Chiba Cancer Center, Chiba, Japan.<br /><searchLink fieldCode="AU" term="%22Muramatsu+Y%22">Muramatsu Y</searchLink>; Oncology Medical Affairs , Pfizer Japan Inc, Tokyo, Japan.<br /><searchLink fieldCode="AU" term="%22Matsui+A%22">Matsui A</searchLink>; Oncology Medical Affairs , Pfizer Japan Inc, Tokyo, Japan.<br /><searchLink fieldCode="AU" term="%22Masuda+N%22">Masuda N</searchLink>; Department of Breast Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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  Data: <searchLink fieldCode="JN" term="%22100888201%22">Breast cancer (Tokyo, Japan)</searchLink> [Breast Cancer] 2025 Nov; Vol. 32 (6), pp. 1482-1490. <i>Date of Electronic Publication: </i>2025 Aug 21.
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  Data: <i>Publisher: </i><searchLink fieldCode="PB" term="%22Maruzen+Co%22">Maruzen Co </searchLink><i>Country of Publication: </i>Japan <i>NLM ID: </i>100888201 <i>Publication Model: </i>Print-Electronic <i>Cited Medium: </i>Internet <i>ISSN: </i>1880-4233 (Electronic) <i>Linking ISSN: </i><searchLink fieldCode="IS" term="%2213406868%22">13406868 </searchLink><i>NLM ISO Abbreviation: </i>Breast Cancer <i>Subsets: </i>MEDLINE
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        Value: 10.1007/s12282-025-01760-0
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              Text: 2025 Nov
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