Thirteen patients with cisplatin-refractory germ cell tumors were treated o
n a Phase II trial with pyrazoloacridine. Pyrazoloacridine was given intrav
enously at 600 mg/m(3) every three weeks. The median nadir leucocyte count
was 2.5 cells/mm(3), hemoglobin was 10.8 g/dl, and platelet count was 126,0
00 cells/m(3). None of the thirteen evaluable patients achieved a major res
ponse. Pyrazoloacridine is not efficacious in the treatment of cisplatin-re
fractory germ cell tumors.