Decreased organ failure in patients with severe SIRS and septic shock treated with the platelet-activating factor antagonist TCV-309: a prospective, multicenter, double-blind, randomized phase II trial. TCV-309 Septic Shock Study Group

M Poeze, A H Froon, G Ramsay, W A Buurman, J W Greve
Shock 2000, 14 (4): 421-8
Sepsis and organ failure remain the main cause of death on the ICU. Sepsis is characterized by a severe inflammatory response, in which platelet-activating factor (PAF) is considered to play an important role. This study investigated whether treatment with the PAF-antagonist TCV-309 reduces morbidity and mortality in patients with septic shock. The study was conducted as a double-blind, randomized, placebo controlled multicenter study. The included patients had to fulfill the SIRS criteria with a clinical suspicion of infection, an admission APACHE II score greater than 15, and shock, defined as a mean arterial pressure <70 mmHg and/or a decrease > or =40 mmHg despite adequate fluid resuscitation. Patients received 1.0 mg/kg TCV-309 or placebo, twice daily, intravenously during 14 days. The prospectively set goals were MOF score, recovery from shock, mortality, and assessment of the safety of the medication. A total of 98 patients were included of which 97 were analyzed on an intention-to-treat basis. The overall survival at day 56 of TCV-309 treated patients was similar compared to placebo treated patients (51.0% vs. 41.7%, P = 0.47). In contrast, the mean percentage of failed organs per patient present after 14 days in the TCV-309 treated patients was significantly lower compared to the placebo treated patients (11.9% vs. 25.1%, P = 0.04), leading to a reduced need for vasopressors, dialysis, and ventilatory support. Furthermore, the mean APACHE-II score during treatment with TCV-309 was significantly lower and the number of patients recovered from shock after day 14 was significantly higher in the TCV-309 treated patient group (2/32 vs. 9/29, P = 0.01). The number of adverse events was not significantly different between the TCV-309 and placebo treated patients. TCV-309 did not change overall mortality of septic shock, however a substantial reduction in organ dysfunction and morbidity, frequently associated with septic shock was achieved, without significant adverse events.

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