Individualized intensification of treatment based on tumor marker decline in metastatic nonseminomatous germ cell testicular cancer (NSGCT): A report from the Swedish Norwegian Testicular Cancer Group, SWENOTECA
2009
5015 Background: From July 1995 to December 2003, 602 adult patients from Sweden and Norway with metastatic testicular NSGCT were included in a population-based multicenter SWENOTECA protocol with strict guidelines for staging, treatment and follow-up. Methods: The basic strategy of this protocol was to individualize treatment according to AFP and β-HCG decline (t1/2). Satisfactory response to treatment was defined as a t½ for AFP ≤ 7 days and/or β-HCG ≤ 3 days. Initial treatment for all patients was 2 courses of standard BEP. Tumor markers were analyzed once a week during treatment. Patients with satisfactory response went on with BEP while patients with unsatisfactory t1/2 received intensified treatment in two steps with addition of ifosfamide (BEP-if/PEI) in step 1. If still unsatisfactory response the treatment was intensified according to step 2 involving high-dose chemotherapy with stem cell rescue. Postchemotherapy surgery was performed according to protocol guidelines. Results: 99,7% (602 of 604) ...
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