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Gronchi A, Palmerini E, Quagliuolo V, Martin Broto J, Lopez Pousa A, Grignani G, Brunello A, Blay JY, Tendero O, Diaz Beveridge R, Ferraresi V, Lugowska I, Pizzamiglio S, Verderio P, Fontana V, Donati DM, Palassini E, Sanfilippo R, Bianchi G, Bertuzzi A, Morosi C, Pasquali S, Stacchiotti S, Bagué S, Coindre JM, Miceli R, Dei Tos AP, Casali PG. Neoadjuvant Chemotherapy in High-Grade Myxoid Liposarcoma: Results of the Expanded Cohort of a Randomized Trial From Italian (ISG), Spanish (GEIS), French (FSG), and Polish Sarcoma Groups (PSG). J Clin Oncol 2024; 42:898-906. [PMID: 38232337 DOI: 10.1200/jco.23.00908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 09/20/2023] [Accepted: 11/08/2023] [Indexed: 01/19/2024] Open
Abstract
PURPOSE A randomized trial was conducted to compare neoadjuvant standard (S) anthracycline + ifosfamide (AI) regimen with histology-tailored (HT) regimen in selected localized high-risk soft tissue sarcoma (STS). The results of the trial demonstrated the superiority of S in all STS histologies except for high-grade myxoid liposarcoma (HG-MLPS) where S and HT appeared to be equivalent. To further evaluate the noninferiority of HT compared with S, the HG-MLPS cohort was expanded. PATIENTS AND METHODS Patients had localized high-grade (cellular component >5%; size ≥5 cm; deeply seated) MLPS of extremities or trunk wall. The primary end point was disease-free survival (DFS). The secondary end point was overall survival (OS). The trial used a noninferiority Bayesian design, wherein HT would be considered not inferior to S if the posterior probability of the true hazard ratio (HR) being >1.25 was <5%. RESULTS From May 2011 to June 2020, 101 patients with HG-MLPS were randomly assigned, 45 to the HT arm and 56 to the S arm. The median follow-up was 66 months (IQR, 37-89). Median size was 107 mm (IQR, 84-143), 106 mm (IQR, 75-135) in the HT arm and 108 mm (IQR, 86-150) in the S arm. At 60 months, the DFS and OS probabilities were 0.86 and 0.73 (HR, 0.60 [95% CI, 0.24 to 1.46]; log-rank P = .26 for DFS) and 0.88 and 0.90 (HR, 1.20 [95% CI, 0.37 to 3.93]; log-rank P = .77 for OS) in the HT and S arms, respectively. The posterior probability of HR being >1.25 for DFS met the Bayesian monitoring cutoff of <5% (4.93%). This result confirmed the noninferiority of trabectedin to AI suggested in the original study cohort. CONCLUSION Trabectedin may be an alternative to standard AI in HG-MLPS of the extremities or trunk when neoadjuvant treatment is a consideration.
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Affiliation(s)
- Alessandro Gronchi
- Department of Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Emanuela Palmerini
- Osteoncologia, Sarcomi dell'osso e dei tessuti molli, e Terapie Innovative, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | | | - Javier Martin Broto
- Medical Oncology Department, Fundación Jimenez Diaz University Hospital, Madrid, Spain
- University Hospital General de Villalba, Madrid, Spain
- Instituto de Investigacion Sanitaria Fundacion Jimenez Diaz (IIS/FJD, UAM), Madrid, Spain
| | - Antonio Lopez Pousa
- Department of Cancer Medicine, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Giovanni Grignani
- Department of Cancer Medicine, Ospedale Città della Scienza e della Salute, Torino, Italy
| | - Antonella Brunello
- Department of Oncology, Medical Oncology 1 Unit, Istituto Oncologico Veneto IOV, IRCCS, Padova, Italy
| | - Jean-Yves Blay
- Department of Cancer Medicine, Centre Léon Bérard Cancer Center, UNICANCER & Université Claude Bernard, Lyon, France
| | - Oscar Tendero
- Department of Surgery, Hospital Universitari Son Espases, Palma de Mallorca, Spain
| | - Robert Diaz Beveridge
- Department of Cancer Medicine, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | | | - Iwona Lugowska
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Centrum Onkologii, Instytutim, Marii Sklodowskiej-Curie, Warszawa, Poland
| | - Sara Pizzamiglio
- Unit of Bioinformatics and Biostatistics, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Paolo Verderio
- Unit of Bioinformatics and Biostatistics, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Valeria Fontana
- Department of Epidemiology, Clinical Trial Center, IRCCS Ospedale Policlinico San Martino, IST Istituto Nazionale per la Ricerca sul Cancro, Genova, Italy
| | - Davide Maria Donati
- Orthopaedic Oncology Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Elena Palassini
- Department of Cancer Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Roberta Sanfilippo
- Department of Cancer Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Giuseppe Bianchi
- Orthopaedic Oncology Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Alexia Bertuzzi
- Department of Cancer Medicine, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Carlo Morosi
- Department of Radiology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Sandro Pasquali
- Department of Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Silvia Stacchiotti
- Department of Cancer Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Silvia Bagué
- Department of Pathology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | | | - Rosalba Miceli
- Unit of Biostatistics for Clinical Research, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | | | - Paolo Giovanni Casali
- Department of Cancer Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
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Ohmoto A, Nakano K, Fukuda N, Wang X, Urasaki T, Hayashi N, Suto H, Udagawa S, Oki R, Sato Y, Yunokawa M, Ono M, Saito M, Minami Y, Hayakawa K, Tanizawa T, Ae K, Matsumoto S, Tomomatsu J, Takahashi S. Clinical characteristics of sarcoma cases in which long-term disease control was achieved with trabectedin treatment: A retrospective study. PLoS One 2023; 18:e0280508. [PMID: 36857355 PMCID: PMC9977011 DOI: 10.1371/journal.pone.0280508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 01/02/2023] [Indexed: 03/02/2023] Open
Abstract
Trabectedin is a therapeutic option for patients with advanced sarcoma. While a randomized trial demonstrated its prolonged progression-free survival (PFS), the reported PFS was <6 months. Some patients can achieve long-term disease control with this treatment. However, the reference information is insufficient. Herein, we retrospectively reviewed 51 sarcoma patients who received trabectedin. We analyzed the clinicopathological features, trabectedin dose, administration schedule, and clinical outcomes, including the overall response rate (ORR) and PFS. Among them, we assessed the detailed data of patients who achieved long-term disease control (PFS >1 year). The ORR in the 49 evaluable patients was 8%, and the median PFS in 51 patients was 7.5 months. Six patients (12%) achieved PFS of >1 year. Five of the six patients had metastatic lesions at trabectedin initiation. The pathological subtypes were myxoid liposarcoma (n = 2), leiomyosarcoma (n = 2), synovial sarcoma (n = 1), and Ewing sarcoma (n = 1). The final administration dose was the minimum dose (0.8 mg/m2) in two patients who continued the treatment over 20 cycles. The best radiological response was partial response (PR) in two myxoid liposarcoma patients and stable disease in four. The durations from trabectedin initiation to the first response in the two PR cases were 163 and 176 days, respectively. Our results support the validity of continuing trabectedin at a sustainable dose and interval in patients who can tolerate it. These results may be useful when considering the clinical application of trabectedin.
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Affiliation(s)
- Akihiro Ohmoto
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Kenji Nakano
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Naoki Fukuda
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Xiaofei Wang
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Tetsuya Urasaki
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Naomi Hayashi
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Hirotaka Suto
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Shohei Udagawa
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Ryosuke Oki
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yasuyoshi Sato
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Mayu Yunokawa
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Makiko Ono
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Masanori Saito
- Department of Orthopedic Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yusuke Minami
- Department of Orthopedic Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Keiko Hayakawa
- Department of Orthopedic Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Taisuke Tanizawa
- Department of Orthopedic Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Keisuke Ae
- Department of Orthopedic Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Seiichi Matsumoto
- Department of Orthopedic Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Junichi Tomomatsu
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Shunji Takahashi
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
- * E-mail:
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3
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Grignani G, Le Cesne A, Martín-Broto J. Trabectedin as second-line treatment in advanced soft tissue sarcoma: quality of life and safety outcomes. Future Oncol 2022; 18:13-22. [PMID: 36200954 DOI: 10.2217/fon-2022-0518] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The choice of second- and later-line options for advanced soft tissue sarcoma (aSTS) should always be considered from the patient's perspective, taking into account the potential impact of treatment on daily activities and quality of life. This review examines data on the safety of trabectedin in the management of patients with aSTS as reported in clinical trials and real-world studies. Evidence indicates that trabectedin exhibits an acceptable and manageable safety profile and is compatible with daily activities. Trabectedin is associated with low rates of toxicity-related discontinuations, few potentially life-threatening toxicities, a lack of apparent cumulative toxicities and low rates of grade 3/4 nausea, vomiting and fatigue. Trabectedin represents a valuable second-line option for aSTS, including in elderly patients.
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Affiliation(s)
- Giovanni Grignani
- Candiolo Cancer Institute, FPO-IRCCS, SP 142 Km 3.95, 10060 Candiolo, Italy
| | - Axel Le Cesne
- International Department of Medical Oncology, Gustave Roussy, 114 Rue Edouard Vaillant, 94805 Villejuif, France
| | - Javier Martín-Broto
- Department of Medical Oncology, University Hospital Fundación Jimenez Diaz, 28040 Madrid, Spain.,University Hospital General de Villalba, 28400 Collado Villalba, Madrid, Spain.,Instituto de Investigacion Sanitaria Fundacion Jimenez Diaz (IIS/FJD; UAM), 28015 Madrid, Spain
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de Lima MF, Freitas MO, Hamedani MK, Rangel-Pozzo A, Zhu XD, Mai S. Consecutive Inhibition of Telomerase and Alternative Lengthening Pathway Promotes Hodgkin's Lymphoma Cell Death. Biomedicines 2022; 10:2299. [PMID: 36140400 PMCID: PMC9496562 DOI: 10.3390/biomedicines10092299] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/19/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022] Open
Abstract
Telomere maintenance is key during cancer development. Malignant cells can either use telomerase or an alternative lengthening of telomere (ALT) pathway to maintain their telomere length. In Hodgkin's Lymphoma (HL), the presence of telomerase activation is established. The activation of ALT has been reported recently. Our data confirm this notion describing co-localization of the phosphorylated form of telomeric repeat-binding factor 1 (pT371-TRF1) with ALT-associated promyelocytic leukemia bodies. Surprisingly, to our knowledge, there are no published studies targeting both telomere maintenance pathways in HL. Consequently, we investigated, for the first time, the effects of both telomerase and ALT inhibition on HL cell viability: We inhibited telomerase and/or ALT, given either individually, simultaneously, or consecutively. We report that the inhibition of telomerase using BIBR1532 followed by ALT inhibition, using trabectedin, caused a decrease of greater than 90% in cell viability in three patient-derived HL cell lines. Our results suggest that HL cells are most vulnerable to the consecutive inhibition of telomerase followed by ALT inhibition.
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Affiliation(s)
- Matheus Fabiao de Lima
- Department of Physiology and Pathophysiology, CancerCare Manitoba Research Institute, University of Manitoba, Winnipeg, MB R3E 0V9, Canada
| | - Monique Oliveira Freitas
- Genetic Service, Institute of Paediatrics and Puericulture Martagão Gesteira (IPPMG), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941-912, Brazil
| | - Mohammad K. Hamedani
- Department of Physiology and Pathophysiology, CancerCare Manitoba Research Institute, University of Manitoba, Winnipeg, MB R3E 0V9, Canada
| | - Aline Rangel-Pozzo
- Department of Physiology and Pathophysiology, CancerCare Manitoba Research Institute, University of Manitoba, Winnipeg, MB R3E 0V9, Canada
| | - Xu-Dong Zhu
- Department of Biology, Faculty of Science, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Sabine Mai
- Department of Physiology and Pathophysiology, CancerCare Manitoba Research Institute, University of Manitoba, Winnipeg, MB R3E 0V9, Canada
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A Growth Modulation Index-Based GEISTRA Score as a New Prognostic Tool for Trabectedin Efficacy in Patients with Advanced Soft Tissue Sarcomas: A Spanish Group for Sarcoma Research (GEIS) Retrospective Study. Cancers (Basel) 2021; 13:cancers13040792. [PMID: 33672857 PMCID: PMC7917652 DOI: 10.3390/cancers13040792] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 01/31/2021] [Accepted: 02/02/2021] [Indexed: 12/03/2022] Open
Abstract
Simple Summary Soft tissue sarcomas (STS) are an uncommon and heterogeneous group of tumors, with scarce options for treatment in advanced cases. There is no consensus regarding which is the best treatment sequence for these patients. Although trabectedin is an approved drug for STS treatment, after progression to anthracyclines, the clinical profile of the patients that most benefit from this drug it is not defined. We have retrospectively analyzed a sample of 357 nonselected sarcoma patients from real-world experience, treated homogeneously with trabectedin, confirming and validating results from previous clinical trials and other retrospective studies. After analyzing clinical prognostic factors, we selected those which predicted a better growth modulation index (GMI > 1.33), and we defined the GEISTRA score, an easy to obtain and reproducible clinical tool, that can help us to optimize the use of trabectedin in advanced sarcoma patients. Abstract The aim of this study was to identify an easily reliable prognostic score that selects the subset of advanced soft tissue sarcoma (ASTS) patients with a higher benefit with trabectedin in terms of time to progression and overall survival. A retrospective series of 357 patients with ASTS treated with trabectedin as second- or further-line in 19 centers across Spain was analyzed. First, it was confirmed that patients with high growth modulation index (GMI > 1.33) were associated with the better clinical outcome. Univariate and multivariate analyses were performed to identify factors associated with a GMI > 1.33. Thus, GEISTRA score was based on metastasis free-interval (MFI ≤ 9.7 months), Karnofsky < 80%, Non L-sarcomas and better response in the previous systemic line. The median GMI was 0.82 (0–69), with 198 patients (55%) with a GMI < 1, 41 (11.5%) with a GMI 1–1.33 and 118 (33.1%) with a GMI > 1.33. The lowest GEISTRA score showed a median of time-to-progression (TTP) and overall survival (OS) of 5.7 and 19.5 months, respectively, whereas it was 1.8 and 3.1 months for TTP and OS, respectively, for the GEISTRA 4 score. This prognostic tool can contribute to better selecting candidates for trabectedin treatment in ASTS.
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Rubio MJ, Lecumberri MJ, Varela S, Alarcón J, Ortega ME, Gaba L, Espinós J, Calzas J, Barretina P, Ruiz I, Marquina G, Santaballa A. Efficacy and safety of trabectedin in metastatic uterine leiomyosarcoma: A retrospective multicenter study of the Spanish ovarian cancer research group (GEICO). Gynecol Oncol Rep 2020; 33:100594. [PMID: 32566719 PMCID: PMC7296187 DOI: 10.1016/j.gore.2020.100594] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 05/26/2020] [Accepted: 05/31/2020] [Indexed: 02/06/2023] Open
Abstract
Trabectedin confers clinical benefit in patients with recurrent/metastatic uterine leiomyosarcoma. Our data are similar to those previously reported in clinical studies. Trabectedin is especially effective when administered in earlier lines. Trabectedin has a manageable safety profile.
Objective We assessed trabectedin in patients with advanced uterine leiomyosarcoma (uLMS) in real-life clinical practice given according to the marketing authorization. Methods Thirty-six women from 11 tertiary hospitals across Spain who received trabectedin after anthracycline-containing regimen/s were retrospectively analyzed. The primary endpoint was progression-free survival (PFS). Results Median PFS and overall survival (OS) since starting trabectedin treatment were 5.4 (95%CI: 3.5–7.3) and 18.5 months (95%CI: 11.5–25.6), respectively. Median OS was significantly higher (P = 0.028) in patients receiving trabectedin in ≤ 2nd line (25.3 months) than in ≥ 3rd (15.1 months) and with ECOG performance status ≤ 1 at trabectedin start (19.8 months) than ECOG 2–3 (6.0 months, P = 0.013). When calculating OS since diagnosis, patients had longer OS with localized disease at diagnosis (87.4 months) vs. locally advanced (30.0 months) or metastatic (44.0 months, P = 0.041); and patients who received adjuvant therapy (87.4 months) compared with those who did not (30.0 months, P = 0.003), especially when receiving radiochemotherapy (106.7 months, P = 0.027). One patient (2.8%) had a complete response (CR) and nine patients (25.0%) achieved a partial response (PR) for an objective response rate of 27.8% with median response duration of 11 months (range: 4–93). Eighteen patients (50.0%) had disease stabilization for a disease control rate (DCR) of 77.8%. More patients receiving trabectedin in 1st-line of advanced disease achieved CR (16.7%) and PR (50.0%) than those in ≥ 2nd line/s (0.0% and 20.0%), whereas the DCR was similar across treatment lines. Reversible neutropenia was the most common grade 3/4 laboratory abnormality (19.4%). Conclusions Trabectedin confers clinical benefit in patients with recurrent/metastatic uLMS, given after failure to an anthracycline-based regimen being comparable to those reported in clinical trials and with a manageable safety profile.
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Affiliation(s)
- María Jesús Rubio
- Hospital Universitario Reina Sofía, Córdoba, Spain
- Corresponding author at: Hospital Universitario Reina Sofía, Córdoba, Spain.
| | | | | | - Jesús Alarcón
- Hospital Universitario Son Espases, Palma de Mallorca, Spain
| | | | - Lydia Gaba
- Hospital Clínic de Barcelona, Barcelona, Spain
| | | | - Julia Calzas
- Hospital Universitario de Fuenlabrada, Madrid, Spain
| | | | - Isabel Ruiz
- Hospital Universitario Sant Joan de Reus, Reus, Spain
| | | | - Ana Santaballa
- Hospital Universitari i Politècnic La Fe, Valencia, Spain
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Endo M, Takahashi S, Araki N, Sugiura H, Ueda T, Yonemoto T, Takahashi M, Morioka H, Hiraga H, Hiruma T, Kunisada T, Matsumine A, Goda K, Kawai A. Time lapse analysis of tumor response in patients with soft tissue sarcoma treated with trabectedin: A pooled analysis of two phase II clinical trials. Cancer Med 2020; 9:3656-3667. [PMID: 32220056 PMCID: PMC7286446 DOI: 10.1002/cam4.2991] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 02/22/2020] [Accepted: 02/25/2020] [Indexed: 01/05/2023] Open
Abstract
The time course of the response to each drug is important to avoid inappropriate termination of treatment by misjudging tumor progression; however, little is known about soft tissue sarcoma (STS) regarding this matter. This study aimed to perform a time-lapse analysis of tumor response in patients with STS treated with trabectedin from 2 phase II clinical trials. We examined 66 patients with translocation-related sarcoma registered in 2 Japanese phase II clinical trials. All patients previously received standard therapy before the administration of trabectedin at 1.2 mg/m2 every 3 weeks. Imaging evaluation was performed according to the study protocol. The sum of the maximum diameters of the target lesions was calculated and analyzed over time. Among the 66 patients, 9 (13.6%) showed partial response (PR) to trabectedin. Histological diagnoses of these 9 responders comprised 6 myxoid liposarcoma, 2 synovial sarcoma, and a mesenchymal chondrosarcoma. The median period from treatment initiation to the first PR was 123 (range, 34-328) days. The pattern of tumor response to trabectedin showed an increasing tendency in size in the initial stage, usually followed by a size decrease with repeated administration. STS response to trabectedin was characterized as delayed and potentially persistent. Clinicians treating STS with trabectedin should know the features of the response pattern to avoid interrupting the treatment before maximal efficacy is achieved.
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Affiliation(s)
- Makoto Endo
- Department of Orthopaedic Surgery, Kyushu University, Fukuoka, Japan
| | - Shunji Takahashi
- Department of Medical Oncology, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Nobuhito Araki
- Department of Orthopaedic Surgery, Osaka International Cancer Institute, Osaka, Japan
| | - Hideshi Sugiura
- Department of Physical Therapy, Nagoya University, Nagoya, Japan
| | - Takafumi Ueda
- Department of Orthopaedic Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Tsukasa Yonemoto
- Division of Orthopaedic Surgery, Chiba Cancer Center, Chiba, Japan
| | - Mitsuru Takahashi
- Division of Orthopaedic Surgery, Shizuoka Cancer Center Hospital, Nagaizumi, Japan
| | - Hideo Morioka
- Department of Orthopaedic Surgery, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Hiroaki Hiraga
- Department of Orthopaedic Surgery, Hokkaido Cancer Center, Sapporo, Japan
| | - Toru Hiruma
- Department of Musculoskeletal Tumor Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Toshiyuki Kunisada
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama, Japan
| | | | - Kazato Goda
- Department of Medical affairs, Taiho Pharmaceutical Co. Ltd, Tokyo, Japan
| | - Akira Kawai
- Department of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
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