The role of FDG PET assessment in patients with advanced breast cancer treated with cyclin-dependent kinase 4/6 inhibitors in the second-line setting

BackgroundCyclin-dependent kinase 4/6 (CDK4/6) inhibitors have demonstrated a survival benefit in the second-line treatment of patients with hormone receptor-positive human epidermal growth factor receptor 2-negative advanced breast cancer. However, identifying prognostic biomarkers remains a challe...

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Main Authors: Marcin Kubeczko, Anna Polakiewicz-Gilowska, Andrea D’Amico, Olgierd Chrabański, Katarzyna Świderska, Ewa Chmielik, Sławomir Blamek, Daria Handkiewicz-Junak, Michał Jarząb
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Language:English
Published: Frontiers Media S.A. 2024-12-01
Series:Frontiers in Oncology
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Online Access:https://www.frontiersin.org/articles/10.3389/fonc.2024.1454844/full
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author Marcin Kubeczko
Anna Polakiewicz-Gilowska
Andrea D’Amico
Olgierd Chrabański
Katarzyna Świderska
Ewa Chmielik
Sławomir Blamek
Daria Handkiewicz-Junak
Michał Jarząb
author_facet Marcin Kubeczko
Anna Polakiewicz-Gilowska
Andrea D’Amico
Olgierd Chrabański
Katarzyna Świderska
Ewa Chmielik
Sławomir Blamek
Daria Handkiewicz-Junak
Michał Jarząb
author_sort Marcin Kubeczko
collection DOAJ
description BackgroundCyclin-dependent kinase 4/6 (CDK4/6) inhibitors have demonstrated a survival benefit in the second-line treatment of patients with hormone receptor-positive human epidermal growth factor receptor 2-negative advanced breast cancer. However, identifying prognostic biomarkers remains a challenge. Thus, we aimed to assess the prognostic value of 18F-fluorodeoxyglucose positron emission tomography-computed tomography (FDG-PET-CT) performed before CDK4/6 inhibitors initiation.MethodsThis single-center retrospective analysis comprised patients treated with CDK4/6 inhibitors in the second-line setting between 2018 and 2024, with FDG-PET-CT performed before CDK4/6 inhibitor initiation.ResultsThe study included 39 patients with a median age of 63 years (IQR 50 -71). Among them, 12 had de novo metastatic disease (30.8%), and 13 had oligometastatic disease (33.3%). Treatment distribution was as follows: 15 patients received palbociclib (38%), 19 ribociclib (49%), and five abemaciclib (13%). Most patients received fulvestrant (31 patients, 79%), whereas eight patients (21%) were treated with letrozole. The median progression-free survival (PFS) in all studied patients was 25.8 months. Notably, baseline SUVmax (maximum standardized uptake value) showed statistically and clinically significant differences. Patients in the low SUVmax group had a median PFS of 30.7 months, compared to 13.0 months for those in the high SUVmax group (p = 0.038). The 2-year PFS was 76.2% [95% CI 51.8% - 89.4%] for the low SUVmax group, contrasting with 22.3% [95% CI 4.0% - 49.9%] for the high SUVmax group. High SUVmax, poor performance status, and de novo metastatic disease were independent prognostic factors for PFS.ConclusionsFDG-PET-CT performed before cyclin-dependent kinase 4/6 inhibitor commencement is a valuable prognostic tool in hormone receptor-positive human epidermal growth factor receptor 2-negative advanced breast cancer. Patients with SUVmax less than 8.4 experienced extended progression-free survival compared to those with higher SUVmax.
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spelling doaj-art-9d9e1f7a93a64468bcf194119069923b2024-12-03T05:10:04ZengFrontiers Media S.A.Frontiers in Oncology2234-943X2024-12-011410.3389/fonc.2024.14548441454844The role of FDG PET assessment in patients with advanced breast cancer treated with cyclin-dependent kinase 4/6 inhibitors in the second-line settingMarcin Kubeczko0Anna Polakiewicz-Gilowska1Andrea D’Amico2Olgierd Chrabański3Katarzyna Świderska4Ewa Chmielik5Sławomir Blamek6Daria Handkiewicz-Junak7Michał Jarząb8Breast Cancer Center, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, PolandBreast Cancer Center, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, PolandDepartment of Nuclear Medicine and Endocrine Oncology, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, PolandDepartment of Nuclear Medicine and Endocrine Oncology, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, PolandBreast Cancer Center, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, PolandTumor Pathology Department, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, PolandDepartment of Radiotherapy, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, PolandDepartment of Nuclear Medicine and Endocrine Oncology, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, PolandBreast Cancer Center, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice, PolandBackgroundCyclin-dependent kinase 4/6 (CDK4/6) inhibitors have demonstrated a survival benefit in the second-line treatment of patients with hormone receptor-positive human epidermal growth factor receptor 2-negative advanced breast cancer. However, identifying prognostic biomarkers remains a challenge. Thus, we aimed to assess the prognostic value of 18F-fluorodeoxyglucose positron emission tomography-computed tomography (FDG-PET-CT) performed before CDK4/6 inhibitors initiation.MethodsThis single-center retrospective analysis comprised patients treated with CDK4/6 inhibitors in the second-line setting between 2018 and 2024, with FDG-PET-CT performed before CDK4/6 inhibitor initiation.ResultsThe study included 39 patients with a median age of 63 years (IQR 50 -71). Among them, 12 had de novo metastatic disease (30.8%), and 13 had oligometastatic disease (33.3%). Treatment distribution was as follows: 15 patients received palbociclib (38%), 19 ribociclib (49%), and five abemaciclib (13%). Most patients received fulvestrant (31 patients, 79%), whereas eight patients (21%) were treated with letrozole. The median progression-free survival (PFS) in all studied patients was 25.8 months. Notably, baseline SUVmax (maximum standardized uptake value) showed statistically and clinically significant differences. Patients in the low SUVmax group had a median PFS of 30.7 months, compared to 13.0 months for those in the high SUVmax group (p = 0.038). The 2-year PFS was 76.2% [95% CI 51.8% - 89.4%] for the low SUVmax group, contrasting with 22.3% [95% CI 4.0% - 49.9%] for the high SUVmax group. High SUVmax, poor performance status, and de novo metastatic disease were independent prognostic factors for PFS.ConclusionsFDG-PET-CT performed before cyclin-dependent kinase 4/6 inhibitor commencement is a valuable prognostic tool in hormone receptor-positive human epidermal growth factor receptor 2-negative advanced breast cancer. Patients with SUVmax less than 8.4 experienced extended progression-free survival compared to those with higher SUVmax.https://www.frontiersin.org/articles/10.3389/fonc.2024.1454844/fulladvanced breast cancer18Ffluorodeoxyglucose positron emission tomographypalbociclibribociclibabemaciclib
spellingShingle Marcin Kubeczko
Anna Polakiewicz-Gilowska
Andrea D’Amico
Olgierd Chrabański
Katarzyna Świderska
Ewa Chmielik
Sławomir Blamek
Daria Handkiewicz-Junak
Michał Jarząb
The role of FDG PET assessment in patients with advanced breast cancer treated with cyclin-dependent kinase 4/6 inhibitors in the second-line setting
Frontiers in Oncology
advanced breast cancer
18Ffluorodeoxyglucose positron emission tomography
palbociclib
ribociclib
abemaciclib
title The role of FDG PET assessment in patients with advanced breast cancer treated with cyclin-dependent kinase 4/6 inhibitors in the second-line setting
title_full The role of FDG PET assessment in patients with advanced breast cancer treated with cyclin-dependent kinase 4/6 inhibitors in the second-line setting
title_fullStr The role of FDG PET assessment in patients with advanced breast cancer treated with cyclin-dependent kinase 4/6 inhibitors in the second-line setting
title_full_unstemmed The role of FDG PET assessment in patients with advanced breast cancer treated with cyclin-dependent kinase 4/6 inhibitors in the second-line setting
title_short The role of FDG PET assessment in patients with advanced breast cancer treated with cyclin-dependent kinase 4/6 inhibitors in the second-line setting
title_sort role of fdg pet assessment in patients with advanced breast cancer treated with cyclin dependent kinase 4 6 inhibitors in the second line setting
topic advanced breast cancer
18Ffluorodeoxyglucose positron emission tomography
palbociclib
ribociclib
abemaciclib
url https://www.frontiersin.org/articles/10.3389/fonc.2024.1454844/full
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