RATIONALE: Diagnostic procedures, such as positron emission tomography (PET scan) using 11C topotecan, may help doctors predict a patient's response to treatment and help plan the best treatment. PURPOSE: This phase I/II trial is studying how well a PET scan using 11C topotecan predicts response to treatment in patients with brain metastases due to ovarian, small cell lung, or other cancer.
OBJECTIVES: Primary * Determine if tumor uptake of \^11C topotecan occurs quickly enough and at sufficient concentration to be measured immediately following infusion in patients with brain metastases secondary to ovarian cancer, small cell lung cancer, or other cancers. * Determine, preliminarily, if \^11C imaging has potential to be an early predictor of response to topotecan therapy in these patients. Secondary * Determine the whole-body biodistribution of \^11C topotecan in these patients. OUTLINE: * Phase I: Patients receive \^11C topotecan IV over 10 minutes followed immediately by a 1-2 hour positron emission tomography (PET) scan. Within 4 weeks after initial imaging, patients also undergo a CT scan. * Phase II: Patients receive \^11C topotecan and undergo imaging as in phase I. Patients also receive fludeoxyglucose F 18 IV and, 1 hour later, undergo a PET scan. PROJECTED ACCRUAL: A total of 10 patients will be accrued for this study.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
7
Within 4 weeks after initial imaging, patients also undergo a CT scan.
Phase I: IV over 10 minutes followed immediately by a 1-2 hour positron emission tomography (PET) scan. Phase II: fludeoxyglucose F 18 IV and, 1 hour later, undergo a PET scan.
Phase I and II: IV over 10 minutes
Case Medical Center, University Hospitals Seidman Cancer Center, Case Comprehensive Cancer Center
Cleveland, Ohio, United States
Pharmacokinetics on day of positron-emission tomography scan
Time frame: Within 1 week of PET
Disease response
Time frame: after 1-2 courses of treatment
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Phase II: fludeoxyglucose F 18 IV