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The Desmoid Tumor Research Foundation

March 2017

Imatinib induces sustained progression arrest in RECIST progressive desmoid tumours: Final results of a phase II study of the German Interdisciplinary Sarcoma Group (GISG).

Author Information

Antonia Dimitrakopoulou-Strauss,Bernd Kasper,Florian Haller,Geraldine Rauch,Lothar Pilz,Michaela Sommer,Peter Hohenberger,Peter Reichardt,Ronald Limprecht,Sebastian Bauer,Viktor Gruenwald

Clinical Cooperation Unit Nuclear Medicine, German Cancer Research Center, Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany.,Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany.,HELIOS Klinikum Berlin-Buch, Sarcoma Center Berlin-Brandenburg, Schwanebecker Chaussee 50, D-13125 Berlin, Germany.,Institute of Pathology, Friedrich Alexander University, Erlangen-Nürnberg, Krankenhausstr. 8-10, D-91054 Erlangen, Germany.,Sarcoma Center, West German Cancer Center, Hufelandstr. 55, D-45122 Essen, Germany.,University of Heidelberg, Institute of Medical Biometry and Informatics, Im Neuenheimer Feld 130.3, D-69120 Heidelberg, Germany.,University of Heidelberg, Mannheim University Medical Center, Interdisciplinary Tumor Center Mannheim, Sarcoma Unit, Theodor-Kutzer-Ufer 1-3, D-68167 Mannheim, Germany.,University of Heidelberg, Mannheim University Medical Center, Interdisciplinary Tumor Center Mannheim, Sarcoma Unit, Theodor-Kutzer-Ufer 1-3, D-68167 Mannheim, Germany. Electronic address: bernd.kasper@umm.de.,University of Heidelberg, Mannheim University Medical Center, Interdisciplinary Tumor Center Mannheim, Sarcoma Unit, Theodor-Kutzer-Ufer 1-3, D-68167 Mannheim, Germany; University of Heidelberg, Mannheim University Medical Center, Division of Surgical Oncology, Theodor-Kutzer-Ufer 1-3, D-68167 Mannheim, Germany.,University of Heidelberg, Medical Faculty Mannheim, Theodor-Kutzer-Ufer 1-3, D-68167 Mannheim, Germany.

Publication

Summary

We initiated a phase II trial within the German Interdisciplinary Sarcoma Group (GISG) evaluating imatinib to induce progression arrest in desmoid tumour patients being Response Evaluation Criteria in Solid Tumours (RECIST) progressive, not amenable to surgical resection with R0 intent or accompanied by unacceptable function loss (NCT01137916). Thirty-eight patients (median age 44 years [range: 19-80]; 68% female; 90% Eastern Cooperative Oncology Group (ECOG) performance status 0) were treated with a daily dose of 800 mg imatinib planned over 2 years. The progression arrest rate after 6 months of imatinib treatment (PAR6mo) was the primary end-point. Patients showing disease progression under imatinib could be treated with nilotinib 800 mg daily. Accrual started in July 2010 in four GISG centres and finalised in September 2013. Imatinib induces sustained progression arrest in RECIST progressive desmoid tumour patients. In addition, nilotinib had the potential to stabilise desmoid tumour growth after treatment failure with imatinib.

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