Overall survival of patients with KIT-mutant metastatic GIST in the era of multiple kinase inhibitor availability

Abstract Purpose The prognosis of patients with metastatic GIST and imatinib-sensitive primary mutations has significantly improved. However, limited data are available to inform patients about outcomes across different lines of treatment. This retrospective analysis aims to evaluate patient outcome...

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Main Authors: Valerie Haller, Carina Reiff, Rainer Hamacher, Karina Kostbade, Moritz Kaths, Juergen Treckmann, Stefanie Bertram, Yasmin Zaun, Sebastian Bauer, Johanna Falkenhorst
Format: Article
Language:English
Published: Springer 2024-11-01
Series:Journal of Cancer Research and Clinical Oncology
Online Access:https://doi.org/10.1007/s00432-024-05965-2
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author Valerie Haller
Carina Reiff
Rainer Hamacher
Karina Kostbade
Moritz Kaths
Juergen Treckmann
Stefanie Bertram
Yasmin Zaun
Sebastian Bauer
Johanna Falkenhorst
author_facet Valerie Haller
Carina Reiff
Rainer Hamacher
Karina Kostbade
Moritz Kaths
Juergen Treckmann
Stefanie Bertram
Yasmin Zaun
Sebastian Bauer
Johanna Falkenhorst
author_sort Valerie Haller
collection DOAJ
description Abstract Purpose The prognosis of patients with metastatic GIST and imatinib-sensitive primary mutations has significantly improved. However, limited data are available to inform patients about outcomes across different lines of treatment. This retrospective analysis aims to evaluate patient outcomes at a large German GIST referral center over the past 15 years. Patients and methods Overall survival (OS) and progression-free survival (PFS) were analyzed in patients with metastatic GIST, with diagnosis of metastases between 2008 and 2021, when at least three lines of treatment were available in Germany (n = 174). Results The median overall survival far exceeds historical data for patients with primary exon 11 and exon 9 mutations (median OS in palliative treatment with imatinib: 7.1 years; median OS in second-line palliative treatment with sunitinib: 2.9 years; median OS in third-line palliative treatment with regorafenib: 1.9 years). Among those patients who received palliative imatinib treatment, no significant difference in median OS survival was observed between those who had received perioperative imatinib for localized disease and those who did not. Furthermore, the location of metastases significantly impacted survival, whereas the time between the initial diagnosis and the diagnosis of metastases had no significant effect on survival. Conclusion In conclusion, this study provides a novel, real-world reference for survival outcomes in patients with metastatic GIST.
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spelling doaj-art-6a3d81bd47e24e4a88d04d13af029bcb2025-01-12T12:06:56ZengSpringerJournal of Cancer Research and Clinical Oncology1432-13352024-11-011501111210.1007/s00432-024-05965-2Overall survival of patients with KIT-mutant metastatic GIST in the era of multiple kinase inhibitor availabilityValerie Haller0Carina Reiff1Rainer Hamacher2Karina Kostbade3Moritz Kaths4Juergen Treckmann5Stefanie Bertram6Yasmin Zaun7Sebastian Bauer8Johanna Falkenhorst9Department of Medical Oncology and Sarcoma Center, West German Cancer Center, University Hospital EssenDepartment of Medical Oncology and Sarcoma Center, West German Cancer Center, University Hospital EssenDepartment of Medical Oncology and Sarcoma Center, West German Cancer Center, University Hospital EssenDepartment of Medical Oncology and Sarcoma Center, West German Cancer Center, University Hospital EssenGerman Cancer Consortium (DKTK), Partner Site University Hospital EssenGerman Cancer Consortium (DKTK), Partner Site University Hospital EssenGerman Cancer Consortium (DKTK), Partner Site University Hospital EssenDepartment of Medical Oncology and Sarcoma Center, West German Cancer Center, University Hospital EssenDepartment of Medical Oncology and Sarcoma Center, West German Cancer Center, University Hospital EssenDepartment of Medical Oncology and Sarcoma Center, West German Cancer Center, University Hospital EssenAbstract Purpose The prognosis of patients with metastatic GIST and imatinib-sensitive primary mutations has significantly improved. However, limited data are available to inform patients about outcomes across different lines of treatment. This retrospective analysis aims to evaluate patient outcomes at a large German GIST referral center over the past 15 years. Patients and methods Overall survival (OS) and progression-free survival (PFS) were analyzed in patients with metastatic GIST, with diagnosis of metastases between 2008 and 2021, when at least three lines of treatment were available in Germany (n = 174). Results The median overall survival far exceeds historical data for patients with primary exon 11 and exon 9 mutations (median OS in palliative treatment with imatinib: 7.1 years; median OS in second-line palliative treatment with sunitinib: 2.9 years; median OS in third-line palliative treatment with regorafenib: 1.9 years). Among those patients who received palliative imatinib treatment, no significant difference in median OS survival was observed between those who had received perioperative imatinib for localized disease and those who did not. Furthermore, the location of metastases significantly impacted survival, whereas the time between the initial diagnosis and the diagnosis of metastases had no significant effect on survival. Conclusion In conclusion, this study provides a novel, real-world reference for survival outcomes in patients with metastatic GIST.https://doi.org/10.1007/s00432-024-05965-2
spellingShingle Valerie Haller
Carina Reiff
Rainer Hamacher
Karina Kostbade
Moritz Kaths
Juergen Treckmann
Stefanie Bertram
Yasmin Zaun
Sebastian Bauer
Johanna Falkenhorst
Overall survival of patients with KIT-mutant metastatic GIST in the era of multiple kinase inhibitor availability
Journal of Cancer Research and Clinical Oncology
title Overall survival of patients with KIT-mutant metastatic GIST in the era of multiple kinase inhibitor availability
title_full Overall survival of patients with KIT-mutant metastatic GIST in the era of multiple kinase inhibitor availability
title_fullStr Overall survival of patients with KIT-mutant metastatic GIST in the era of multiple kinase inhibitor availability
title_full_unstemmed Overall survival of patients with KIT-mutant metastatic GIST in the era of multiple kinase inhibitor availability
title_short Overall survival of patients with KIT-mutant metastatic GIST in the era of multiple kinase inhibitor availability
title_sort overall survival of patients with kit mutant metastatic gist in the era of multiple kinase inhibitor availability
url https://doi.org/10.1007/s00432-024-05965-2
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