<qa>  What is the maximum dose of trofosfamide?Group A:Adriamycin 60 mgm2, d1, qd22 75 mgm2 may be applied instead of 60 mgm2 for patients between 60 and 70 years of age optional Group B:Trofosfamide 300 mg absolute p.o. qd over 7 days, then 150 mg p.o. absolute qd continuously In case of absence of any toxicity during treatment with trofosfamide 150 mg absolute a dose escalation to 200 mg absolute is allowed optional 