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Clinical Trial Summary

Aim of the study is to verify whether Polymyxin-B hemoperfusion protects from renal dysfunction in patients with severe sepsis from gram negative infection.


Clinical Trial Description

Acute renal failure (ARF) is a frequent complication in sepsis, in nearly to 50% of the cases, and the mortality rate is higher, compare to patients with ARF alone (70% vs 45%). Clinical and experimental studies demonstrated the key role of apoptosis, or programmed cell death, in the induction of tubular and glomerular injury in the course of sepsis. Indeed, it has been shown that inflammatory cytokines and lipopolysaccharide (LPS) cause renal tubular cell apoptosis via Fas- and caspase-mediated pathways. In addition, LPS is able to alter the normal expression pattern of sodium, urea and glucose renal transporters and to modulate tubular polarity by changing the expression of tight junction proteins with consequent back-leakage of tubular fluid in the interstitial spaces and enhancement of the inflammatory process. Therefore a novel extracorporeal therapy to remove circulating LPS, using the Polymyxin-B fiber (PMX-B) cartridge was developed. The PMX-B cartridge is an extracorporeal hemoperfusion device and consists of a polystyrene-based, fibrous adsorbent on which the polymyxin B antibiotic is covalently immobilized as a ligand to adsorb endotoxin.

Aim of this study is to verify whether the removal of LPS, using the PMX-B hemoperfusion system, protects from acute renal failure, reduces the need for Renal Replacement Therapy (RRT) and consequently improves the outcome in severe sepsis from gram negative infection. ;


Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention


Related Conditions & MeSH terms


NCT number NCT00490477
Study type Interventional
Source University of Turin, Italy
Contact
Status Completed
Phase Phase 3
Start date May 2006
Completion date December 2007

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