TY - JOUR
T1 - Prognostic and predictive factors for outcome to first-line ifosfamide-containing chemotherapy for adult patients with advanced soft tissue sarcomas. An exploratory, retrospective analysis on large series from the European Organization for Research and Treatment of Cancer-Soft Tissue and Bone Sarcoma Group (EORTC-STBSG)
AU - Sleijfer, Stefan
AU - Ouali, Monia
AU - van Glabbeke, Martine
AU - Krarup-Hansen, Anders
AU - Rodenhuis, Sjoerd
AU - Le Cesne, Axel
AU - Hogendoorn, Pancras C.W.
AU - Verweij, Jaap
AU - Blay, Jean Yves
N1 - Funding Information:
This publication was supported by the EORTC Charitable Trust.
PY - 2010/1/1
Y1 - 2010/1/1
N2 - Background: Adult patients with advanced soft tissue sarcomas (STS) are generally treated similarly, regardless of great differences between STS subtypes, disease presentation and patients' characteristics. As ifosfamide is frequently applied in first line systemic therapy, we aimed to establish prognostic and predictive factors for outcome to ifosfamide-based therapy. Methods: A retrospective, exploratory analysis was performed on data from 1337 advanced STS patients who received first-line ifosfamide-containing chemotherapy. For predictive factor analysis, 660 patients treated with doxorubicin monotherapy served as comparators. Results: Independent favourable prognostic factors for overall survival (OS) were good performance status, female gender, low histological grade, extremity primary tumour site and locally advanced disease; for progression-free survival (PFS), the combination of doxorubicin and ifosfamide, locally advanced disease, and tumour entity with a lower risk to progress for synovial sarcoma patients compared to leiomyosarcoma. For response, independent favourable prognostic factors were doxorubicin combined with ifosfamide, higher histological grade, and histology with synovial sarcoma patients having the highest chance to respond. Predictive factor analysis showed that compared to doxorubicin monotherapy, patients who benefited less from ifosfamide-based therapies were leiomyosarcoma patients in terms of OS, and patients with liposarcoma for response. No predictive factors were found for PFS. Conclusion: In this study, we established an independent set of prognostic and predictive factors for outcome to ifosfamide-based chemotherapy in advanced STS patients. This study provides important information for the interpretation and design of clinical trials for specific STS entities and may contribute to further treatment individualisation of advanced STS patients.
AB - Background: Adult patients with advanced soft tissue sarcomas (STS) are generally treated similarly, regardless of great differences between STS subtypes, disease presentation and patients' characteristics. As ifosfamide is frequently applied in first line systemic therapy, we aimed to establish prognostic and predictive factors for outcome to ifosfamide-based therapy. Methods: A retrospective, exploratory analysis was performed on data from 1337 advanced STS patients who received first-line ifosfamide-containing chemotherapy. For predictive factor analysis, 660 patients treated with doxorubicin monotherapy served as comparators. Results: Independent favourable prognostic factors for overall survival (OS) were good performance status, female gender, low histological grade, extremity primary tumour site and locally advanced disease; for progression-free survival (PFS), the combination of doxorubicin and ifosfamide, locally advanced disease, and tumour entity with a lower risk to progress for synovial sarcoma patients compared to leiomyosarcoma. For response, independent favourable prognostic factors were doxorubicin combined with ifosfamide, higher histological grade, and histology with synovial sarcoma patients having the highest chance to respond. Predictive factor analysis showed that compared to doxorubicin monotherapy, patients who benefited less from ifosfamide-based therapies were leiomyosarcoma patients in terms of OS, and patients with liposarcoma for response. No predictive factors were found for PFS. Conclusion: In this study, we established an independent set of prognostic and predictive factors for outcome to ifosfamide-based chemotherapy in advanced STS patients. This study provides important information for the interpretation and design of clinical trials for specific STS entities and may contribute to further treatment individualisation of advanced STS patients.
KW - Ifosfamide-based chemotherapy
KW - Prognostic and predictive factors
KW - Soft tissue sarcoma
UR - http://www.scopus.com/inward/record.url?scp=71049122368&partnerID=8YFLogxK
U2 - 10.1016/j.ejca.2009.09.022
DO - 10.1016/j.ejca.2009.09.022
M3 - Article
C2 - 19853437
AN - SCOPUS:71049122368
SN - 0959-8049
VL - 46
SP - 72
EP - 83
JO - European Journal of Cancer
JF - European Journal of Cancer
IS - 1
ER -