Increasing the dose intensity of chemotherapy in poor-prognosis metastatic non-seminoma.
The overall cure rate of patients with metastatic non-seminoma of the testis is high and a recent survey of 795 patients by the Medical Research Council indicated that 85% were alive 3 years after the start of chemotherapy. Two major categories of patients can be identified with a poorer prognosis. First are those with adverse prognostic factors at presentation defined by presence of one of the following factors: high tumour markers, more than 20 lung metastases, liver bone or brain metastases, mediastinal mass more than 5 cm. In these patients, the RMH is investigating accelerated chemotherapy employing a 7 day cycle, combined carboplatin and cisplatin and infusional bleomycin (C-BOP regimen). Of 21 patients followed for a median of 18 months, 18 (85%) have remained continuously disease free. The second adverse group are patients who have already failed first line chemotherapy. A multivariate prognostic factor analysis on 105 patients treated at the Royal Marsden Hospital indicates that adverse factors for salvage chemotherapy are the disease-free interval and the extent of disease at relapse. Our approach to patients with disseminated relapse includes high dose carboplatin and etoposide with autologous bone marrow support. With follow-up from 3-24 months, 7 of 11 patients treated with high dose chemotherapy remain continuously free from progressive disease. The need for an alkylating agent in the high dose combination is questionable.
Department of Radiotherapy and Oncology, Royal Marsden Hospital, Sutton, UK.
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A
Horwich
C
C
Wilson
P
P
Cornes
J
J
Gildersleve
D
D
Dearnaley
D000704:Analysis of Variance; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage*; D016026:Bone Marrow Transplantation; D003131:Combined Modality Therapy; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009373:Neoplasms, Germ Cell and Embryonal / Q000188:drug therapy* / Q000556:secondary; D011379:Prognosis; D016879:Salvage Therapy; D015996:Survival Rate; D013736:Testicular Neoplasms / Q000188:drug therapy* / Q000473:pathology