A new drug cycloplatam-platinum compound of the second generation-has
been tried in 19 polyresistant (MDR) patients with multiple myeloma (M
M). At terminal MM stage 17 patients developed secondary MDR, 2 untrea
ted patients appeared to be primarily resistant. Cycloplatam was injec
ted intravenously in a dose 60 mg/m(2) in drips per 400 ml of 5% gluco
se solution with prednisolone (60 mg per os) combined with hydration a
nd antibacterial defense. A total of 42 courses were given. A complete
objective response was achieved in 5 of 19 (27.7%) patients, partial
response was observed in 1 (5.5%) patient with secondary resistance at
terminal MM, 2 (10.5%) patients achieved stabilization. Progression o
f the disease occurred in 10 (55.5%) patients with secondary resistanc
e at terminal stage. 1 patient died. The remission lasted 16 months so
far. There were hematological, gastrointestinal and hepatic side effe
cts. All the patients suffered from nausea and vomiting, hematological
toxicity (anemia, leukopenia, thrombocytopenia). Hepatic toxicity aff
ected only 1 patient.