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    Testicular Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI] - Stage III Testicular Cancer

    continued...

    Numerous attempts have been made to develop a regimen superior to BEP for poor-prognosis germ cell tumors but none have been successful. Most recently, four cycles of BEP was compared with two cycles of BEP followed by two cycles of high-dose cyclophosphamide, etoposide, and carboplatin, but there was no difference in survival between the two arms.[10] Earlier trials of higher dose cisplatin or long-term maintenance chemotherapy were similarly disappointing.

    For good-risk patients, the goal of clinical trials has been to minimize the toxic effects of treatment without sacrificing the therapeutic effectiveness. As noted above, no difference in outcome was seen when comparing three versus four cycles of BEP chemotherapy. However, attempts to eliminate bleomycin produced more ambiguous and usually disappointing results. A randomized, controlled trial comparing three cycles of BEP with three cycles of EP reported lower OS (95% vs. 86%, P = .01) in the EP arm.[11] Similarly, when three cycles of BEP was compared with four cycles of EP in a randomized trial in more than 260 patients, there were 6 relapses and 5 deaths in the bleomycin arm compared with 14 relapses and 12 deaths in the EP arm, but these differences were not statistically significant.[12] Several other studies have compared bleomycin-containing regimens to etoposide and cisplatin and in every trial, the trend in survival has favored the bleomycin arm, but the differences have not usually been statistically significant.[13,14,15] These results have led to some controversy as to whether three cycles of BEP is superior to four cycles of EP.

    Special Considerations During Chemotherapy

    In most patients, an orchiectomy is performed before starting chemotherapy. If the diagnosis has been made by biopsy of a metastatic site (or on the basis of highly elevated serum tumor markers and radiological imaging consistent with an advanced-stage germ cell tumor) and chemotherapy has been initiated, subsequent orchiectomy is generally performed because chemotherapy may not eradicate the primary tumor. Case reports illustrate that viable tumor has been found on postchemotherapy orchiectomy despite complete response of metastatic lesions.[16]

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