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      Clinical Outcome of Systemic Treatment for Advanced Soft Tissue Sarcoma: Real-Life Perspective in Japan

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          Abstract

          Introduction

          The median survival time of patients with advanced soft tissue sarcoma (STS) is typically <12 months. Since 2012, physicians were able to administer second- and/or third-line treatment easily in Japan, following the approval of new drugs, namely, pazopanib, eribulin, and trabectedin. We investigated the real-life experience of adults with advanced STS who received systemic therapy after the approval of the aforementioned new drugs.

          Patients and Methods

          We retrospectively evaluated 34 patients (median age: 66 years) with primary STS arising at the extremities/trunk or unresectable local and/or metastatic STS between 2012 and 2019. We evaluated the tumor response and patient survival after initial systemic treatment.

          Results

          As first-line treatment, doxorubicin and ifosfamide and other drugs were administered to 7 and 27 patients, respectively. Of 31 patients with an evaluable tumor response, partial response was observed in 2 (6.5%) patients, and 16 (52%) patients showed stable disease at 8 weeks. The 1- and 2-year survival rates were 51.4% and 28.4%, respectively. The median overall survival (OS) time was 12.6 months. Tumor response to first-line therapy was related to patient prognosis.

          Conclusion

          New drugs may be beneficial for patients with advanced STS. When patients cannot receive anthracycline-based chemotherapy because of a high risk of side effects, we believe that the aforementioned drugs may be administered as the first-line treatment.

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          Most cited references 14

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          Doxorubicin alone versus intensified doxorubicin plus ifosfamide for first-line treatment of advanced or metastatic soft-tissue sarcoma: a randomised controlled phase 3 trial.

          Effective targeted treatment is unavailable for most sarcomas and doxorubicin and ifosfamide-which have been used to treat soft-tissue sarcoma for more than 30 years-still have an important role. Whether doxorubicin alone or the combination of doxorubicin and ifosfamide should be used routinely is still controversial. We assessed whether dose intensification of doxorubicin with ifosfamide improves survival of patients with advanced soft-tissue sarcoma compared with doxorubicin alone.
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            Soft-tissue sarcomas in adults.

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              Prognostic factors for patients with localized soft-tissue sarcoma treated with conservation surgery and radiation therapy: an analysis of 1225 patients.

              Prognostic factors for patients with soft-tissue sarcoma who are treated with conservative surgery and radiation are documented poorly. The clinicopathologic features and disease outcome for 1225 patients with localized sarcoma who were treated with conservative surgery and radiation were reviewed retrospectively. Actuarial univariate and multivariate statistical methods were used to determine significant prognostic factors for local control, metastatic recurrence, and disease specific survival. The median follow-up of surviving patients was 9.5 years. The respective local control rates at 5 years, 10 years, and 15 years were 83%, 80%, and 79%. Factors predictive of local recurrence were positive or uncertain resection margins; tumors located in the head and neck and the deep trunk; presentation with local recurrence; patient age > 64 years; malignant fibrous histiocytoma, neurogenic sarcoma. or epithelioid sarcoma histopathology; tumor measuring > 10 cm in greatest dimension; and high pathologic grade. Freedom from metastasis at 5 years, 10 years, and 15 years was 71%, 68%, and 66%, respectively. Factors that were predictive of metastatic recurrence were high tumor grade; large tumor size (> 5 cm); and leiomyosarcoma, rhabdomyosarcoma, synovial sarcoma, or epithelioid sarcoma. The respective disease specific survival rates at 5 years, 10 years, and 15 years were 73%, 68%, and 65%. Adverse factors for disease specific survival were high tumor grade; large tumor size (> 5 cm); tumors located in the head and neck and deep trunk; rhabdomyosarcoma, epithelioid sarcoma, or clear cell sarcoma; patient age > 64 years; and positive or uncertain resection margins. Soft-tissue sarcoma comprises a heterogeneous group of diseases. Prognostic factors for local recurrence, metastatic recurrence, lymph node recurrence, disease free survival, and disease specific survival are different, and optimal treatment strategies need to take this complexity into account. Copyright 2003 American Cancer Society.DOI 10.1002/cncr.11365
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                Author and article information

                Journal
                Drug Des Devel Ther
                Drug Des Devel Ther
                dddt
                dddt
                Drug Design, Development and Therapy
                Dove
                1177-8881
                12 October 2020
                2020
                : 14
                : 4215-4220
                Affiliations
                [1 ]Department of Orthopaedic Surgery, Mie University Graduate School of Medicine , Tsu, Japan
                Author notes
                Correspondence: Tomoki Nakamura Department of Orthopaedic Surgery, Mie University Graduate School of Medicine , Tsu, Mie, JapanTel +81-592315022Fax +81-592315211 Email tomoki66@clin.medic.mie-u.ac.jp
                Article
                275526
                10.2147/DDDT.S275526
                7567542
                © 2020 Nakamura et al.

                This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License ( http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms ( https://www.dovepress.com/terms.php).

                Page count
                Figures: 2, Tables: 10, References: 15, Pages: 6
                Funding
                Funded by: did not receive any financial support for the completion of this study;
                We did not receive any financial support for the completion of this study.
                Categories
                Original Research

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