Journal of Clinical Oncology, 2006 ASCO Annual Meeting Proceedings (Post-Meeting Edition).
Vol 24, No 18S (June 20 Supplement), 2006: 4509
© 2006 American Society of Clinical Oncology

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Abstract

Increased late toxicity in 12–20 year survivors of germ cell tumors (GCT)

Cleveland Clinic Taussig Cancer Center, Cleveland, OH; USC Norris Comprehensive Cancer Center, Los Angeles, CA

4509

Background: There is extensive literature on occurrence of late effects of cisplatin-based chemotherapy, but it comes from centers of excellence and may reflect case selection or ascertainment biases. Funded by the NIH SEER Program and the Lance Armstrong Foundation, we studied community-based late outcomes via identification of cases from the Los Angeles SEER Tumor Registry and comparison with a control group. Methods: We identified 951 patients treated in Los Angeles County through the records of the L.A. SEER Cancer Registry/Cancer Surveillance Program (CSP) for 1983–1987, giving a minimum follow-up of 12 years. Consent was obtained from physician of record and forms sent to the patients, requesting information about a broad range of demographic, treatment-related and psycho-social issues. In addition, patients were asked to provide a "control", a friend of approximately the same age at time of diagnosis, known to the patient before diagnosis and known not to have a history of testis cancer. Questionnaires were also sent to controls, to allow data comparison with patients. Anticipated initial difficulties included mobility of young males and invalid addresses. This occurred in > 50% of cases, and we used a planned strategy for acquisition through State agencies, Department of Motor Vehicles, etc. Results: Surveys were returned by 298 cases and 67 control subjects, and 35 patients refused. In 1983–87, success rates were lower, and 142 patients had died. An unexpected problem was reluctance or inability of subjects to identify friends of comparable age to provide a control population. Differences in groups are summarized in the Table. Conclusions: Long term survivors with GCT have an excess of late toxicity, including cardiovascular, neurological, hematologic, musculoskeletal and neoplastic problems, which increase with time. These data should assist in design of surveillance protocols.

Abstract presentation from the 2006 ASCO Annual Meeting