1
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Ferrari A, Orbach D, Bergamaschi L, Schoot RA, van Noesel MM, Di Carlo D, Bisogno G, Alaggio R, Milano GM, Chiaravalli S, Fuccillo F, Laurence V, Corradini N, Gasparini P, Vennarini S, Pasquali S, Casanova M. Treatment at relapse for synovial sarcoma of children and adolescents: A multi-institutional European retrospective analysis. Pediatr Blood Cancer 2024; 71:e31038. [PMID: 38679840 DOI: 10.1002/pbc.31038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 05/01/2024]
Abstract
PURPOSE Though the prognosis for pediatric patients with localised synovial sarcoma (SS) is generally good, the chances of being cured after relapse are limited. This study describes a retrospective multi-institutional series of relapsing SS patients treated at six selected European referral centers for pediatric sarcoma. PATIENTS AND METHODS The study included 41 patients <21 years with relapsing SS, treated between 2002 and 2022. The analysis included patient's characteristics at first diagnosis, first-line treatments, clinical findings at relapse, and second-line treatment modalities. RESULTS The first relapse occurred within 3-132 months (median 18 months) after first diagnosis and was local in 34%, metastatic in 54%, and both in 12%. Treatment at first relapse included surgery in 56% of cases, radiotherapy in 34%, and systemic therapy in 88%. In all, 36 patients received second-line medical treatment, that was chemotherapy in 32 cases (with 10 different regimens) and targeted therapy in four. No patient was included in an early-phase clinical trial as second-line therapy-line therapy. Overall response rate was 42%. Median event-free survival (EFS) was 12 months, postrelapse 5-year EFS was 15.8%. Median overall survival (OS) was 30 months, postrelapse 5-year OS was 22.2%. At the Cox's multivariable regression analysis, OS was significantly associated with time and type of relapse. CONCLUSION Pediatric patients with relapsed SS have a poor prognosis and generally receive an individualized approach, due to the lack of a uniform standardized approach. New comprehensive strategies are needed to improve the knowledge on the biologic landscape of SS and develop tailored prospective clinical trials.
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Affiliation(s)
- Andrea Ferrari
- Pediatric Oncology Unit, Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Daniel Orbach
- SIREDO Oncology Center Care, (Innovation and Research for Children, Adolescents and Young Adults with Cancer), Institut Curie, PSL University, Paris, France
| | - Luca Bergamaschi
- Pediatric Oncology Unit, Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Reineke A Schoot
- Solid Tumors Department, Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Max M van Noesel
- Solid Tumors Department, Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Division Imaging & Cancer, Pediatric Oncology Department, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Daniela Di Carlo
- Hematology Oncology Division, Department of Women's and Children's Health, University of Padua, Padua, Italy
- Department of Women's and Children's Health, University of Padua, Padua, Italy
| | - Gianni Bisogno
- Hematology Oncology Division, Department of Women's and Children's Health, University of Padua, Padua, Italy
- Department of Women's and Children's Health, University of Padua, Padua, Italy
| | - Rita Alaggio
- Pathology Department, Ospedale Pediatrico Bambino Gesù IRCCS, Roma, Italy
| | - Giuseppe Maria Milano
- Hematology/Oncology, Department of Oncohematology, Hematopoietic Transplantation, and Cell Therapy, Ospedale Pediatrico Bambino Gesù IRCCS, Roma, Italy
| | - Stefano Chiaravalli
- Pediatric Oncology Unit, Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Fernando Fuccillo
- Pediatric Oncology Unit, Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | | | - Nadege Corradini
- Department of Pediatric Hematology and Oncology-IHOPe, Léon Bérard Center, Lyon, France
| | - Patrizia Gasparini
- Department of Research, Tumor Genomics Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Sabina Vennarini
- Pediatric Radiotherapy Unit, Radiotherapy Department, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Sandro Pasquali
- Department of Experimental Oncology, Molecular Pharmacology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
- Department of Surgery, Sarcoma Service, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Michela Casanova
- Pediatric Oncology Unit, Medical Oncology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
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2
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Vennarini S, Colombo F, Mirandola A, Orlandi E, Pecori E, Chiaravalli S, Massimino M, Casanova M, Ferrari A. Proton Therapy in Non-Rhabdomyosarcoma Soft Tissue Sarcomas of Children and Adolescents. Cancers (Basel) 2024; 16:1694. [PMID: 38730646 PMCID: PMC11083115 DOI: 10.3390/cancers16091694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
This paper provides insights into the use of Proton Beam Therapy (PBT) in pediatric patients with non-rhabdomyosarcoma soft tissue sarcomas (NRSTS). NRSTS are a heterogeneous group of rare and aggressive mesenchymal extraskeletal tumors, presenting complex and challenging clinical management scenarios. The overall survival rate for patients with NRSTS is around 70%, but the outcome is strictly related to the presence of various variables, such as the histological subtype, grade of malignancy and tumor stage at diagnosis. Multimodal therapy is typically considered the preferred treatment for high-grade NRSTS. Radiotherapy plays a key role in the treatment of children and adolescents with NRSTS. However, the potential for radiation-induced side effects partially limits its use. Therefore, PBT represents a very suitable therapeutic option for these patients. The unique depth-dose characteristics of protons can be leveraged to minimize doses to healthy tissue significantly, potentially allowing for increased tumor doses and enhanced preservation of surrounding tissues. These benefits suggest that PBT may improve local control while reducing toxicity and improving quality of life. While clear evidence of therapeutic superiority of PBT over other modern photon techniques in NRSTS is still lacking-partly due to the limited data available-PBT can be an excellent treatment option for young patients with these tumors. A dedicated international comprehensive collaborative approach is essential to better define its role within the multidisciplinary management of NRSTS. Shared guidelines for PBT indications-based on the patient's age, estimated outcome, and tumor location-and centralization in high-level referral centers are needed to optimize the use of resources, since access to PBT remains a challenge due to the limited number of available proton therapy facilities.
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Affiliation(s)
- Sabina Vennarini
- Pediatric Radiotherapy Unit, Fondazione IRCCS Istituto Nazionale Tumori, 20133 Milan, Italy; (S.V.); (E.P.)
| | - Francesca Colombo
- Radiation Oncology Unit, Clinical Department, CNAO National Center for Oncological Hadrontherapy, 27100 Pavia, Italy; (F.C.); (E.O.)
| | - Alfredo Mirandola
- Medical Physics Unit, Clinical Department, CNAO National Center for Oncological Hadrontherapy, 27100 Pavia, Italy;
| | - Ester Orlandi
- Radiation Oncology Unit, Clinical Department, CNAO National Center for Oncological Hadrontherapy, 27100 Pavia, Italy; (F.C.); (E.O.)
- Department of Clinical, Surgical, Diagnostic, and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
| | - Emilia Pecori
- Pediatric Radiotherapy Unit, Fondazione IRCCS Istituto Nazionale Tumori, 20133 Milan, Italy; (S.V.); (E.P.)
| | - Stefano Chiaravalli
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale Tumori, 20133 Milano, Italy; (S.C.); (M.M.); (M.C.)
| | - Maura Massimino
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale Tumori, 20133 Milano, Italy; (S.C.); (M.M.); (M.C.)
| | - Michela Casanova
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale Tumori, 20133 Milano, Italy; (S.C.); (M.M.); (M.C.)
| | - Andrea Ferrari
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale Tumori, 20133 Milano, Italy; (S.C.); (M.M.); (M.C.)
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3
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Ferrari A, Vennarini S, Fiore M, Bergamaschi L, Chiaravalli S, Morosi C, Colombo C, Pecori E, Puma N, Luksch R, Terenziani M, Spreafico F, Meazza C, Podda M, Biassoni V, Schiavello E, Massimino M, Casanova M. Local treatment in initially unresected non-rhabdomyosarcoma soft-tissue sarcomas of children and adolescents: A retrospective single-center experience. Pediatr Blood Cancer 2024; 71:e30901. [PMID: 38296840 DOI: 10.1002/pbc.30901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/01/2024] [Accepted: 01/21/2024] [Indexed: 02/02/2024]
Abstract
BACKGROUND Pediatric non-rhabdomyosarcoma soft-tissue sarcomas (NRSTS) are a heterogeneous group of aggressive tumors. Patients with locally advanced/initially unresected disease represent a subset of patients with unsatisfactory outcome: limited data are available on the best treatment approach, in particular regarding local therapy. METHODS This retrospective analysis concerned 71 patients < 21 years old with nonmetastatic, initially unresected adult-type NRSTS, treated at a referral center for pediatric sarcomas from 1990 to 2021. Patients were treated using a multimodal approach, based on the protocols adopted at the time of their diagnosis. RESULTS The series included a selected group of patients with unfavorable clinical characteristics, i.e., most cases had high-grade and large tumors, arising from axial sites in 61% of cases. All patients received neoadjuvant chemotherapy, 58 (82%) had delayed surgery (R0 in 45 cases), and 50 (70%) had radiotherapy. Partial response to chemotherapy was observed in 46% of cases. With a median follow-up of 152 months (range, 18-233), 5-year event-free survival (EFS) and overall survival (OS) were 39.9% and 56.5%, respectively. Survival was significantly better for patients who responded to chemotherapy, and those who had a delayed R0 resection. Local relapse at 5 years was 7.7% for patients who did not undergo delayed surgery. CONCLUSIONS Our series underscores the unsatisfactory outcome of initially unresected NRSTS patients. Improving the outcome of this patient category requires therapeutic strategies able to combine novel effective systemic therapies with a better-defined local treatment approach to offer patients the best chances to have R0 surgery.
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Affiliation(s)
- Andrea Ferrari
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Sabina Vennarini
- Pediatric Radiotherapy Unit, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Marco Fiore
- Department of Surgery, Fondazione IRCCS, Istituto Nazionale dei Tumori, Milan, Italy
| | - Luca Bergamaschi
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Stefano Chiaravalli
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Carlo Morosi
- Radiology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Chiara Colombo
- Department of Surgery, Fondazione IRCCS, Istituto Nazionale dei Tumori, Milan, Italy
| | - Emilia Pecori
- Pediatric Radiotherapy Unit, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Nadia Puma
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Roberto Luksch
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Monica Terenziani
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Filippo Spreafico
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Cristina Meazza
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Marta Podda
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Veronica Biassoni
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Elisabetta Schiavello
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Maura Massimino
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Michela Casanova
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
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4
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Gow KW, Lautz TB, Malek MM, Cost NG, Newman EA, Dasgupta R, Christison-Lagay ER, Tiao GM, Davidoff AM. Children's Oncology Group's 2023 blueprint for research: Surgery. Pediatr Blood Cancer 2024; 71:e30766. [PMID: 37950538 PMCID: PMC10872730 DOI: 10.1002/pbc.30766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023]
Abstract
Surgery plays a crucial role in the treatment of children with solid malignancies. A well-conducted operation is often essential for cure. Collaboration with the primary care team is important for determining if and when surgery should be performed, and if performed, an operation must be done in accordance with well-established standards. The long-term consequences of surgery also need to be considered. Indications and objectives for a procedure vary. Providing education and developing and analyzing new research protocols that include aims relevant to surgery are key objectives of the Surgery Discipline of the Children's Oncology Group. The critical evaluation of emerging technologies to ensure safe, effective procedures is another key objective. Through research, education, and advancing technologies, the role of the pediatric surgeon in the multidisciplinary care of children with solid malignancies will continue to evolve.
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Affiliation(s)
- Kenneth W. Gow
- Division of General & Thoracic Surgery, Seattle Children’s Hospital, Seattle, Washington, USA
| | - Timothy B. Lautz
- Department of Pediatric Surgery, Lurie Children’s Hospital of Chicago, Northwestern University School of Medicine, Chicago, Illinois, USA
| | - Marcus M. Malek
- Division of Pediatric General and Thoracic Surgery, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Nicholas G. Cost
- Department of Surgery, Division of Urology and the Surgical Oncology Program, Children’s Hospital Colorado, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Erika A. Newman
- Department of Surgery, Mott Children’s Hospital, University of Michigan, Ann Arbor, Michigan, USA
| | - Roshni Dasgupta
- Division of Pediatric General and Thoracic Surgery, Cincinnati Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio, USA
| | - Emily R. Christison-Lagay
- Division of Pediatric Surgery, Yale School of Medicine, Yale-New Haven Children’s Hospital, New Haven, Connecticut, USA
| | - Gregory M. Tiao
- Division of Pediatric General and Thoracic Surgery, Cincinnati Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio, USA
| | - Andrew M. Davidoff
- Department of Surgery, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
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5
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Weiss AR, Harrison DJ. Soft Tissue Sarcomas in Adolescents and Young Adults. J Clin Oncol 2024; 42:675-685. [PMID: 37967293 DOI: 10.1200/jco.23.01275] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/24/2023] [Accepted: 09/15/2023] [Indexed: 11/17/2023] Open
Abstract
Soft tissue sarcomas (STS) represent a heterogeneous group of extraskeletal mesenchymal tumors that affect individuals throughout the entire age continuum. Despite this pervasive influence, key differences exist in the presentation of these sarcomas across varying age groups that have prevented a more uniform approach to management. Notably, rhabdomyosarcoma (RMS) is more common in children, while most nonrhabdomyosarcoma soft tissue sarcoma (NRSTS) subtypes are more prevalent in adults. Older patients with NRSTS appear to have more molecularly complex biology and often present with more advanced disease compared with children. Poorer outcome disparities are observed in older patients with RMS despite receiving similar treatment as younger patients. In this review, we highlight differences in epidemiology, biology, and management paradigms for pediatric and adult patients with STS and explore opportunities for a unified approach to enhance the care and outcomes within the AYA population.
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Affiliation(s)
- Aaron R Weiss
- Department of Pediatrics, Maine Medical Center, Portland, ME
| | - Douglas J Harrison
- Division of Pediatrics, University of Texas MD Anderson Cancer Center, Houston, TX
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6
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Giraudo C, Schoot R, Cardoen L, Stramare R, Coppadoro B, Bisogno G, Bouhamama A, Brennan B, Brisse HJ, Orbach D, Coma A, Di Paolo PL, Fayard C, McDonald L, Moalla S, Morosi C, Pace E, Tang V, van Noesel MM, Ferrari A, van Rijn R. Indeterminate pulmonary nodules in non-rhabdomyosarcoma soft tissue sarcoma: A study of the European paediatric Soft Tissue Sarcoma Study Group. Cancer 2024; 130:597-608. [PMID: 37846799 DOI: 10.1002/cncr.35061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 08/27/2023] [Accepted: 09/06/2023] [Indexed: 10/18/2023]
Abstract
BACKGROUND The aim of this study was to assess the clinical impact of indeterminate pulmonary nodules (no more than four pulmonary nodules of less than 5 mm or one nodule measuring between 5 and less than 10 mm by computed tomography [CT]) in children and adolescents with adult-type non-rhabdomyosarcoma soft tissue sarcoma (NRSTS) at diagnosis. METHODS Patients with NRSTS treated in 11 centers as part of the European paediatric Soft Tissue Sarcoma Study Group (EpSSG) were retrospectively assessed. Local radiologists, blinded to clinical information except for patients' age and tumor histotype, reviewed the chest CT at diagnosis and filled out a case report form. Because patients with or without indeterminate nodules in the EpSSG NRSTS 2005 study received the same type of treatment, event-free survival (EFS) and overall survival (OS) between groups by log-rank test were compared. RESULTS Overall, 206 patients were examined: 109 (52.9%) were without any nodules, 78 (38%) had at least one indeterminate nodule, and 19 (9.2%) had nodules meeting the definition of metastases, which were then considered to be misclassified and were excluded from further analyses. Five-year EFS was 78.5% (95% CI, 69.4%-85.1%) for patients without nodules and 69.6% (95% CI, 57.9%-78.7%) for patients with indeterminate nodules (p = .135); 5-year OS was 87.4% (95% CI, 79.3%-92.5%) and 79.0% (95% CI, 67.5%-86.8%), respectively (p = .086). CONCLUSIONS This study suggests that survival does not differ in otherwise nonmetastatic patients with indeterminate pulmonary nodules compared to nonmetastatic patients without pulmonary nodules. PLAIN LANGUAGE SUMMARY Radiologists should be aware of the classification of indeterminate pulmonary nodules in non-rhabdomyosarcoma soft tissue sarcomas and use it in their reports. More than a third of patients with non-rhabdomyosarcoma soft tissue sarcoma can be affected by indeterminate pulmonary nodules. Indeterminate pulmonary nodules do not significantly affect the overall survival of pediatric patients with non-rhabdomyosarcoma soft tissue sarcoma.
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Affiliation(s)
- Chiara Giraudo
- Nuclear Medicine Unit, Department of Medicine, University of Padova, Padova, Italy
| | - Reineke Schoot
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Liesbeth Cardoen
- Imaging Department, Institut Curie, Paris Sciences et Lettres University, Paris, France
| | - Roberto Stramare
- Unit of Advanced Clinical and Translational Imaging, Department of Medicine, University of Padova, Padova, Italy
| | - Beatrice Coppadoro
- Hematology Oncology Division, Department of Women's and Children's Health, University of Padova, Padova, Italy
| | - Gianni Bisogno
- Hematology Oncology Division, Department of Women's and Children's Health, University of Padova, Padova, Italy
| | - Amine Bouhamama
- Institut d'Hématologie et Oncologie Pédiatrique, Lyon, France
| | - Bernadette Brennan
- Department of Paediatric Oncology and Haematology, Royal Manchester Children's Hospital, Manchester, UK
| | - Herve J Brisse
- Imaging Department, Institut Curie, Paris Sciences et Lettres University, Paris, France
| | - Daniel Orbach
- SIREDO Oncology Center (Care, Innovation and Research for Children, Adolescents and Young Adults with Cancer), Institut Curie, Paris Sciences et Lettres University, Paris, France
| | - Ana Coma
- Pediatric Radiology Department, Vall d'Hebron Hospital, Barcelona, Spain
| | | | | | - Leigh McDonald
- Great North Children's Hospital, Newcastle Upon Tyne, UK
| | - Salma Moalla
- Department of Radiology, Gustave Roussy Cancer Campus, Université Paris-Saclay, Villejuif, France
| | - Carlo Morosi
- Radiology Department, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Erika Pace
- Department of Radiology, Royal Marsden Hospital National Health Service Foundation Trust, London, UK
| | - Vivian Tang
- Academic Unit of Paediatric Radiology, Paediatric X-Ray Department, Royal Manchester Children's Hospital, Central Manchester University Hospitals National Health Service Foundation Trust, Manchester, UK
| | - Max M van Noesel
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Andrea Ferrari
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Rick van Rijn
- Department of Radiology and Nuclear Medicine, University of Amsterdam, Amsterdam, the Netherlands
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7
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Ferrari A, Orbach D, Casanova M, van Noesel MM, Berlanga P, Brennan B, Corradini N, Schoot RA, Ramirez-Villar GL, Hjalgrim LL, Alaggio R, Guillen Burrieza G, Safwat A, Cameron AL, van Rijn RR, Minard-Colin V, Zanetti I, Bisogno G, Chisholm JC, Merks JHM. Metastatic adult-type non-rhabdomyosarcoma soft tissue sarcomas in children and adolescents: A cohort study from the European paediatric Soft tissue sarcoma Study Group. Cancer 2023. [PMID: 37084075 DOI: 10.1002/cncr.34814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/01/2023] [Accepted: 03/22/2023] [Indexed: 04/22/2023]
Abstract
BACKGROUND Limited data exist on the clinical behavior of pediatric non-rhabdomyosarcoma soft tissue sarcomas (NRSTS) with distant metastases at onset, and a clear standard of care has not yet been defined. METHODS This cohort study reports on pediatric adult-type metastatic NRSTS enrolled in two concurrent prospective European studies, i.e., the randomized BERNIE study and the single-arm MTS 2008 study developed by the European paediatric Soft tissue sarcoma Study Group. Treatment programs were originally designed for patients with metastatic rhabdomyosarcoma, i.e., nine courses of multidrug chemotherapy (with or without bevacizumab in the BERNIE study), followed by 12 cycles of maintenance therapy, whereas radiotherapy and/or surgery (on primary tumor and/or metastases) were delayed until after seven courses of chemotherapy had been administered. RESULTS The study included 61 patients <21 years old treated from July 2008 to December 2016. The lung was the site of metastases in 75% of the cases. All patients received multi-agent chemotherapy, 44% had local therapy to primary tumor, and 18% had treatment of metastases. Median time to progression/relapse was 6 months. A high rate of tumor progression was observed during the initial part of the chemotherapy program. With a median follow-up of 41.5 months (range, 2-111 months), 3-year event-free survival and overall survival were 15.4% (95% confidence interval [CI], 7.6-25.7) and 34.9% (95% CI, 22.7-47.5), respectively. There were no statistically significant differences in outcome depending on the type of treatment administered. CONCLUSIONS The study confirmed the overall poor outcome for patients with metastatic NRSTS, whose treatment remains a challenge. PLAIN LANGUAGE SUMMARY Pediatric non-rhabdomyosarcoma soft tissue sarcomas form a heterogeneous group of rare tumors. Although recent international studies have defined the standard of care for patients with localized disease, limited data are available on the clinical behavior of patients with distant metastases. This study on 61 metastatic cases treated on two prospective European protocols confirms that the chances of survival of such patients are often dismal and a standard treatment is still lacking.
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Affiliation(s)
- Andrea Ferrari
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale Tumori, Milano, Italy
| | - Daniel Orbach
- SIREDO Oncology Center, Institut Curie, PSL University, Paris, France
| | - Michela Casanova
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale Tumori, Milano, Italy
| | - Max M van Noesel
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
| | - Pablo Berlanga
- Department of Pediatric and Adolescent Oncology, Gustave-Roussy, Cancer Campus, Université Paris-Saclay, Villejuif, France
| | - Bernadette Brennan
- Pediatric Oncology, Royal Manchester Children's Hospital, Manchester, UK
| | - Nadege Corradini
- Department of Pediatric Oncology, Institut d'Hematologie et d'Oncologie Pédiatrique,/Centre Léon Bérard, Lyon, France
| | - Reineke A Schoot
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
| | | | - Lisa Lyngsie Hjalgrim
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Rita Alaggio
- Pathology Department, Ospedale Pediatrico Bambino Gesù IRCCS, Rome, Italy
| | - Gabriela Guillen Burrieza
- Surgical Oncology and Neonatal Surgery, Pediatric Surgery Department, Hospital Infantil Universitari Vall d'Hebron, Barcelona, Spain
| | - Akmal Safwat
- Oncology Department and Danish Center for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
| | - Alison L Cameron
- Bristol Haematology and Oncology Centre, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Rick R van Rijn
- Department of Radiology and Nuclear Medicine, UMC University of Amsterdam, Amsterdam, Netherlands
| | - Veronique Minard-Colin
- Department of Pediatric and Adolescent Oncology, Gustave-Roussy, Cancer Campus, Université Paris-Saclay, Villejuif, France
| | - Ilaria Zanetti
- Pediatric Hematology Oncology Division, University Hospital of Padua, Padua, Italy
| | - Gianni Bisogno
- Pediatric Hematology Oncology Division, University Hospital of Padua, Padua, Italy
- Department of Women's and Children's Health, University of Padua, Padua, Italy
| | - Julia C Chisholm
- Children and Young People's Unit, The Royal Marsden Hospital and Institute of Cancer Research, Sutton, UK
| | - Johannes H M Merks
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
- Division of Imaging and Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
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8
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de Vries ISA, van Ewijk R, Adriaansen LME, Bohte AE, Braat AJAT, Fajardo RD, Hiemcke-Jiwa LS, Hol MLF, Ter Horst SAJ, de Keizer B, Knops RRG, Meister MT, Schoot RA, Smeele LE, van Scheltinga ST, Vaarwerk B, Merks JHM, van Rijn RR. Imaging in rhabdomyosarcoma: a patient journey. Pediatr Radiol 2023; 53:788-812. [PMID: 36843091 PMCID: PMC10027795 DOI: 10.1007/s00247-023-05596-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/06/2022] [Accepted: 01/10/2023] [Indexed: 02/28/2023]
Abstract
Rhabdomyosarcoma, although rare, is the most frequent soft tissue sarcoma in children and adolescents. It can present as a mass at nearly any site in the body, with most common presentations in the head and neck, genitourinary tract and extremities. The optimal diagnostic approach and management of rhabdomyosarcoma require a multidisciplinary team with multimodal treatment, including chemotherapy and local therapy. Survival has improved over the last decades; however, further improvement in management is essential with current 5-year overall survival ranging from 35% to 100%, depending on disease and patient characteristics. In the full patient journey, from diagnosis, staging, management to follow-up after therapy, the paediatric radiologist and nuclear physician are essential members of the multidisciplinary team. Recently, guidelines of the European paediatric Soft tissue sarcoma Study Group, the Cooperative Weichteilsarkom Studiengruppe and the Oncology Task Force of the European Society of Paediatric Radiology (ESPR), in an ongoing collaboration with the International Soft-Tissue Sarcoma Database Consortium, provided guidance for high-quality imaging. In this educational paper, given as a lecture during the 2022 postgraduate ESPR course, the multi-disciplinary team of our national paediatric oncology centre presents the journey of two patients with rhabdomyosarcoma and discusses the impact on and considerations for the clinical (paediatric) radiologist and nuclear physician. The key learning points of the guidelines and their implementation in clinical practice are highlighted and up-to-date insights provided for all aspects from clinical suspicion of rhabdomyosarcoma and its differential diagnosis, to biopsy, staging, risk stratification, treatment response assessment and follow-up.
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Affiliation(s)
| | - Roelof van Ewijk
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Laura M E Adriaansen
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Department of Radiology and Nuclear Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Anneloes E Bohte
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Department of Radiology and Nuclear Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Arthur J A T Braat
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Department of Radiology and Nuclear Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Raquel Dávila Fajardo
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Department of Radiotherapy, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Laura S Hiemcke-Jiwa
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Department of Pathology, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Marinka L F Hol
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Department of Otorhinolaryngology, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Simone A J Ter Horst
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Department of Radiology and Nuclear Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Bart de Keizer
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Department of Radiology and Nuclear Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands
| | - Rutger R G Knops
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Michael T Meister
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Oncode Institute, Utrecht, the Netherlands
| | - Reineke A Schoot
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Ludi E Smeele
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Department of Head and Neck Oncology and Surgery, The Netherlands Cancer Institute (NCI), Amsterdam, the Netherlands
- Department of Oral and Maxillofacial Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | | | - Bas Vaarwerk
- Department of Paediatrics, Amsterdam UMC - Emma Children's Hospital, University of Amsterdam, Amsterdam, the Netherlands
| | | | - Rick R van Rijn
- Department of Radiology and Nuclear Medicine, Amsterdam UMC - Emma Children's Hospital, University of Amsterdam, Suite C1-423.1, Meibergdreef 9, 1105AZ, Amsterdam, the Netherlands.
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9
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Alvarez E, He J, Spunt SL, Hayes-Jordan A, Kao SC, Parham DM, Million L, Weiss AR, Barkauskas DA. Lymph node metastases in paediatric and young adult patients with non-rhabdomyosarcoma soft tissue sarcoma (NRSTS): Findings from Children's Oncology Group (COG) study ARST0332. Eur J Cancer 2023; 180:89-98. [PMID: 36566574 PMCID: PMC9940640 DOI: 10.1016/j.ejca.2022.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/31/2022] [Accepted: 11/14/2022] [Indexed: 11/27/2022]
Abstract
PURPOSE The aim of this paper is to better define the clinical features and outcomes of young patients with non-rhabdomyosarcoma soft tissue sarcoma (NRSTS) with regional and distant lymph node (LN) metastases treated in a standardised fashion, we analysed LN involvement in COG study ARST0332, which evaluated a risk-based treatment strategy for young patients with all stages of NRSTS. PATIENTS AND METHODS Patients <30 years old with newly diagnosed NRSTS and LN metastases enrolled on ARST0332 were studied. Regional LN sampling was required for those with epithelioid sarcoma, clear cell sarcoma or clinically/radiographically enlarged LNs. Tumour features and extent of pre-enrolment resection determined treatment, including chemotherapy, radiotherapy, and delayed surgery. Recommendations for LN metastases included LN dissection at the time of primary tumour resection and dose-adapted radiotherapy based on extent of LN resection. RESULTS Twenty of 529 eligible and evaluable ARST0332 patients with NRSTS had LN metastases; epithelioid sarcoma had the highest incidence (18%, 5 of 28). Pre-treatment imaging identified LN enlargement in 19 of 20 patients; 1 had no pre-treatment LN imaging. At 6.9 years median follow-up for surviving patients, 5-year overall survival was 85.7% (95% CI: 33.4%, 97.9%) for seven patients with isolated LN metastases and 15.4% (95% CI: 2.5%, 38.8%) for 13 patients with additional extranodal metastases. LN recurrence occurred in only one patient without LNs sampled at initial diagnosis. CONCLUSION LN metastases occur in about 4% of paediatric/young adult NRSTS, are limited to a few histologic subtypes, and are rare in patients who did not have clinical or imaging evidence of lymphadenopathy, suggesting that biopsies of non-enlarged LNs are not necessary to identify occult involvement. Patients with isolated LN metastases have high 5-year overall survival (∼85%) and should be treated with curative intent. CLINICALTRIALS GOV REGISTRY NO NCT00346164.
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Affiliation(s)
- Elysia Alvarez
- Department of Pediatrics, University of California Davis School of Medicine, Davis, CA, USA.
| | - Jiayi He
- Department of Population and Public Health Sciences, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
| | - Sheri L Spunt
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Simon C Kao
- Department of Radiology, The University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - David M Parham
- Department of Pathology and Laboratory Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Lynn Million
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA, USA
| | - Aaron R Weiss
- Department of Pediatrics, Maine Medical Center, Portland, ME, USA
| | - Donald A Barkauskas
- Department of Population and Public Health Sciences, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
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10
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Wyatt KD, Birz S, Hawkins DS, Minard-Colin V, Rodeberg DA, Sparber-Sauer M, Bisogno G, Koscielniak E, De Salvo GL, Ebinger M, Merks JHM, Wolden SL, Xue W, Volchenboum SL. Creating a data commons: The INternational Soft Tissue SaRcoma ConsorTium (INSTRuCT). Pediatr Blood Cancer 2022; 69:e29924. [PMID: 35969120 PMCID: PMC9560864 DOI: 10.1002/pbc.29924] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/15/2022] [Accepted: 07/21/2022] [Indexed: 11/07/2022]
Abstract
In this article, we will discuss the genesis, evolution, and progress of the INternational Soft Tissue SaRcoma ConsorTium (INSTRuCT), which aims to foster international research and collaboration focused on pediatric soft tissue sarcoma. We will begin by highlighting the current state of clinical research for pediatric soft tissue sarcomas, including rhabdomyosarcoma and non-rhabdomyosarcoma soft tissue sarcoma. We will then explore challenges and research priorities, describe the development of INSTRuCT, and discuss how the consortium aims to address key research priorities.
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Affiliation(s)
- Kirk D. Wyatt
- Division of Pediatric Hematology/Oncology, Roger Maris Cancer Center, Sanford Health, Fargo, North Dakota, United States
| | - Suzi Birz
- Department of Pediatrics, University of Chicago, Chicago, Illinois, United States
| | - Douglas S. Hawkins
- Division of Hematology/Oncology, Department of Pediatrics, Seattle Children’s Hospital, University of Washington School of Medicine, Seattle, Washington
| | | | - David A. Rodeberg
- Division of Pediatric Surgery, University of Kentucky, Lexington, Kentucky, United States
| | - Monika Sparber-Sauer
- Klinikum der Landeshauptstadt Stuttgart, Olgahospital, Zentrum für Kinder-, Jugend - und Frauenmedizin, Pediatrie 5 (Pädiatrische Onkologie, Hämatologie, Immunologie), Stuttgart Cancer Center, Stuttgart, Germany; University of Tübingen, Medical Faculty, Tübingen, Germany
| | - Gianni Bisogno
- Hematology Oncology Division, Department of Women’s and Children’s Health, University Hospital of Padova, Padova Italy
| | - Ewa Koscielniak
- Klinikum der Landeshauptstadt Stuttgart, Olgahospital, Zentrum für Kinder-, Jugend - und Frauenmedizin, Pediatrie 5 (Pädiatrische Onkologie, Hämatologie, Immunologie), Stuttgart Cancer Center, Stuttgart, Germany; University of Tübingen, Medical Faculty, Tübingen, Germany
| | - Gian Luca De Salvo
- Clinical Research Unit, Istituto Oncologico Veneto IOV IRCCS, Padova, Italy
| | - Martin Ebinger
- Department Pediatric Hematology/Oncology, Children’s University Hospital, Eberhard Karls University of Tuebingen, Tuebingen, Germany
| | | | - Suzanne L. Wolden
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Wei Xue
- Department of Biostatistics, Children’s Oncology Group Statistics and Data Center, University of Florida, Gainesville, FL
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11
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Relapsing pediatric non-rhabdomyosarcoma soft tissue sarcomas: The impact of routine imaging surveillance on early detection and post-relapse survival. Eur J Cancer 2022; 175:274-281. [PMID: 36174299 DOI: 10.1016/j.ejca.2022.08.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/22/2022] [Accepted: 08/25/2022] [Indexed: 11/24/2022]
Abstract
PURPOSE The chances of patients with relapsing pediatric non-rhabdomyosarcoma soft tissue sarcomas (NRSTS) being cured are limited. This retrospective single-institutional study examines the potential role of routine surveillance imaging for detecting recurrent tumor, and its impact on post-relapse survival. METHODS The analysis concerned 86 patients < 21 years old with relapsing NRSTS treated from 1985 to 2020. Clinical findings, treatment modalities and survival were analyzed, comparing patients whose relapse was first suspected from symptoms (symptomatic group) with those whose relapse was detected by radiological surveillance (imaging group). RESULTS Tumor relapses were identified from clinical symptoms in 49 cases and on routine imaging in 37. Time to relapse was similar in the two groups. Routine imaging detected 6/32 local relapses and 31/48 distant relapses (and 79% of the cases of lung metastases). Overall survival (OS) at 5 years was 34.3% for the symptomatic group, and 24.0% for the imaging group (p-value 0.270). In patients with lung metastases at relapse, the 5-year OS was statistically better for the imaging group, that is, 25.8% versus 0% for the symptomatic group (p-value 0.044). CONCLUSION This is the first study to explore the role of surveillance imaging in pediatric NRSTS. Judging from our findings, the value of routine scanning of primary sites seems limited, while radiological surveillance may help to detect lung metastases, improving survival for this patient category. The potentially negative effects of periodic radiological exams should be considered in deciding the optimal follow-up for patients off therapy.
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12
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Ferrari A, Brennan B, Casanova M, Corradini N, Berlanga P, Schoot RA, Ramirez-Villar GL, Safwat A, Guillen Burrieza G, Dall’Igna P, Alaggio R, Lyngsie Hjalgrim L, Gatz SA, Orbach D, van Noesel MM. Pediatric Non-Rhabdomyosarcoma Soft Tissue Sarcomas: Standard of Care and Treatment Recommendations from the European Paediatric Soft Tissue Sarcoma Study Group (EpSSG). Cancer Manag Res 2022; 14:2885-2902. [PMID: 36176694 PMCID: PMC9514781 DOI: 10.2147/cmar.s368381] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 09/13/2022] [Indexed: 11/23/2022] Open
Abstract
This paper describes the standard of care for patients with non-rhabdomyosarcoma soft tissue sarcomas (NRSTS) and the therapeutic recommendations developed by the European paediatric Soft tissue sarcoma Study Group (EpSSG). NRSTS form a very mixed group of mesenchymal extraskeletal malignancies. Their rarity, heterogeneity, and aggressiveness make the management of children and adolescents with these tumors complex and challenging. The overall cure rate for patients with NRSTS is around 70%, but survival depends on several prognostic variables, such as histotype and tumor grade, extent of disease and stage, tumor size, and tumor site. While surgery remains the mainstay of treatment for most of these tumors, a multimodal therapeutic approach including radiotherapy and chemotherapy is required in many cases. The EpSSG NRSTS 2005 study was the first prospective protocol tailored specifically to NRSTS. Together with the ARST0332 study developed by the North-American Soft Tissue Sarcoma Committee of the Children's Oncology Group (COG), the EpSSG NRSTS 2005 study currently represents the benchmark for these tumors, establishing risk-adapted standards of care. The EpSSG has developed common treatment recommendations for the large group of adult-type NRSTS (including synovial sarcoma), and specific treatment recommendations for other particular adult-type histologies (ie, alveolar soft-part sarcoma, clear cell sarcoma and dermatofibrosarcoma protuberans); other highly malignant tumors with a biology and clinical behavior differing from those of adult-type NRSTS (ie, rhabdoid tumors and desmoplastic small round cell tumor); and soft tissue tumors of intermediate malignancy (ie desmoid-type fibromatosis, inflammatory myofibroblastic tumors, and infantile fibrosarcoma). New effective drugs are needed for patients whose NRSTS carries the worst prognosis, ie, those with unresectable tumors, metastases at diagnosis, or relapsing disease. Progress in this area relies on our ability to develop international integrated prospective collaborations, both within existing pediatric oncology networks and, importantly, between the communities of specialists treating pediatric and adult sarcoma.
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Affiliation(s)
- Andrea Ferrari
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Bernadette Brennan
- Pediatric Oncology, Royal Manchester Children’s Hospital, Manchester, UK
| | - Michela Casanova
- Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Nadege Corradini
- Department of Pediatric Oncology, Institut d’Hematologie et d’Oncologie Pédiatrique/Centre, Léon Bérard, Lyon, France
| | - Pablo Berlanga
- Department of Pediatric and Adolescent Oncology, Gustave-Roussy, Cancer Campus, Université Paris-Saclay, Villejuif, France
| | - Reineke A Schoot
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
| | | | - Akmal Safwat
- Oncology Department and Danish Center for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
| | - Gabriela Guillen Burrieza
- Surgical Oncology and Neonatal Surgery, Pediatric Surgery Department, Hospital Infantil Universitari Vall d’Hebron, Barcelona, Spain
| | - Patrizia Dall’Igna
- Department of Emergencies and Organ Transplantation, Pediatric Surgery, University of Bari, Bari, Italy
| | - Rita Alaggio
- Pathology Department, Ospedale Pediatrico Bambino Gesù IRCCS, Rome, Italy
| | - Lisa Lyngsie Hjalgrim
- Department of Pediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Susanne Andrea Gatz
- Cancer Research UK Clinical Trials Unit, Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Daniel Orbach
- SIREDO Oncology Center, Institut Curie, PSL University, Paris, France
| | - Max M van Noesel
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
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13
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Adult-type non-rhabdomyosarcoma soft tissue sarcomas in pediatric age: Salvage rates and prognostic factors after relapse. Eur J Cancer 2022; 169:179-187. [DOI: 10.1016/j.ejca.2022.03.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/14/2022] [Accepted: 03/29/2022] [Indexed: 12/31/2022]
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