Imatinib Mesylate in Treating Patients With Locally Advanced Gastrointestinal Stromal Tumor
RATIONALE: Imatinib mesylate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Giving imatinib mesylate before surgery may shrink the tumor so that it can be removed.
PURPOSE: This phase II trial is studying how well imatinib mesylate works in treating patients with locally advanced gastrointestinal stromal tumor.
Gastrointestinal Stromal Tumor
Drug: imatinib mesylate
Procedure: conventional surgery
Procedure: neoadjuvant therapy
|Study Design:||Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Open-Label Trial of Neoadjuvant Imatinib Mesylate (Glivec) in Patients With Locally Advanced Malignant Gastrointestinal Stromal Tumors (GIST) Expressing c-Kit or Platelet-Derived Growth Factor Receptor-alpha|
- Overall tumor response (complete response, partial response, stable disease, and progression of disease) [ Designated as safety issue: No ]
- Time to progression of disease [ Designated as safety issue: No ]
- Overall survival [ Designated as safety issue: No ]
|Study Start Date:||February 2005|
- Determine radiographic objective response rates in patients with locally advanced gastrointestinal stromal tumor treated with neoadjuvant imatinib mesylate.
- Determine histological response in patients treated with this drug.
- Determine R0-resectability and organ-preserving resectability in these patients after treatment with this drug.
- Correlate radiographic imaging and metabolic imaging with histological response in patients treated with this drug.
- Determine the safety and tolerability of this drug in these patients.
OUTLINE: This is a nonrandomized, open-label, multicenter study.
Patients receive oral imatinib mesylate once or twice daily for 4-6 months in the absence of disease progression or unacceptable toxicity. Within 2-3 weeks after completion of imatinib mesylate, patients with responding or stable disease undergo surgical resection.
After completion of study treatment, patients are followed at 4 weeks, 6 months, and then at 1 year.
PROJECTED ACCRUAL: A total of 40 patients will be accrued for this study.
|Allgemeines Krankenhaus - Universitatskliniken|
|Vienna, Austria, A-1090|
|Robert Roessle Comprehensive Cancer Center - Charite Campus Buch|
|Berlin, Germany, D-13122|
|Bonn, Germany, D-53105|
|Medizinische Universitaetsklinik I at the University of Cologne|
|Cologne, Germany, D-50924|
|University Medical Center Hamburg - Eppendorf|
|Hamburg, Germany, D-20246|
|Klinikum der Universitaet Muenchen - Grosshadern Campus|
|Munich, Germany, D-81377|
|Klinikum Rechts Der Isar - Technische Universitaet Muenchen|
|Munich, Germany, D-81675|
|Southwest German Cancer Center at Eberhard-Karls-University|
|Tuebingen, Germany, D-72076|
|Wiesbaden, Germany, D-65199|
|Study Chair:||Thomas Licht, MD||Technische Universität München|