[Clinical evaluation of various antineoplastic agents combined with urokinase--a comparison between urokinase from tissue culture (TCUK) and urine-derived urokinase (UUK)].

The effect of fibrinolytic agents, Tissue Culture Urokinase (TCUK) and Urinary Urokinase (UUK), was investigated in a total of 146 patients with gastric cancer, pulmonary cancer or breast cancer who received various anti-cancer agents, mainly MMC, in combination with the fibrinolytic agents. Assessments were made according to the Koyama-Saito criteria. In order to maintain impartiality of this comparative trial, the drugs were randomly administered to the patients by a card system. The patients who died during the study were excluded from the analysis and the patients with colorectal cancer were also excluded because this disease was not included in the study protocol. As a result, 51 patients given TCUK and 50 patients given UUK (101 in total) were subjected to analyse. The response rate (CR + PR/No. of admitted patients) was 15.6% (8/51) for the TCUK group and 10.0% (5/50) for the UUK group respectively. The patients with measurable lesions in the TCUK group showed a response rate of 25.9% (7/27) and those in the UUK group, 14.3% (4/28). Side effects were observed in 52.1% of patients in the TCUK group and 47.9% in the UUK group. However, these symptoms were related to the anti-cancer agents. Neither a tendency to hemorrhage nor allergic symptoms occurred in association with the two fibrinolytic agents, TCUK and UUK. to UUK in terms of an activity to enhance the chemotherapeutic effect of anti-cancer agents and that combination use of TCUK and anti-cancer agents seems to be useful.