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Eritoran tetrasodium (E5564) treatment for sepsis: review of preclinical and clinical studies.

ABSTRACT: INTRODUCTION:Sepsis remains a leading cause of death worldwide. Despite years of extensive research, effective drugs that inhibit the pro-inflammatory effects of lipopolysaccharide (LPS) and improve outcome when added to conventional sepsis treatments are lacking. Eritoran tetrasodium (E5564) is a promising candidate therapy for sepsis belonging to a new class of such drugs which inhibit LPS-induced inflammation by blocking toll-like receptor 4. AREAS COVERED:This review focuses on the rationale for the use of eritoran tetrasodium in sepsis as well as on its pharmacokinetics, pharmacodynamics, efficacy and safety. Preclinical and clinical studies from a MEDLINE/PubMed literature search in August 2010 with the search terms 'eritoran' and 'E5564' are discussed. EXPERT OPINION:Preclinical in vitro and in vivo studies of eritoran tetrasodium indicate it can limit excessive inflammatory mediator release associated with LPS and improve survival in sepsis models. While early clinical results are promising, its efficacy and safety for treating patients with sepsis are currently under investigation. Even if the ongoing Phase III clinical trial enrolling patients with severe sepsis and increased risk of death shows benefit from eritoran, questions remain and confirmatory studies would be necessary to define its clinical usage.

SUBMITTER: Barochia A

PROVIDER: S-EPMC3065179 | biostudies-literature | 2011 Apr

REPOSITORIES: biostudies-literature

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Eritoran tetrasodium (E5564) treatment for sepsis: review of preclinical and clinical studies.

Barochia Amisha A Solomon Steven S Cui Xizhong X Natanson Charles C Eichacker Peter Q PQ

Expert opinion on drug metabolism & toxicology 20110217 4

<h4>Introduction</h4>Sepsis remains a leading cause of death worldwide. Despite years of extensive research, effective drugs that inhibit the pro-inflammatory effects of lipopolysaccharide (LPS) and improve outcome when added to conventional sepsis treatments are lacking. Eritoran tetrasodium (E5564) is a promising candidate therapy for sepsis belonging to a new class of such drugs which inhibit LPS-induced inflammation by blocking toll-like receptor 4.<h4>Areas covered</h4>This review focuses o ...[more]

PMID: 21323610

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Project description:The acute respiratory distress syndrome (ARDS) is a life-threating disorder that contributes significantly to critical illness. No specific pharmacological interventions directed at lung injury itself have proven effective in improving outcome of patients with ARDS. Platelet activation was identified as a key component in ARDS pathophysiology and may provide an opportunity for preventive and therapeutic strategies. We hypothesize that use of acetyl salicylic acid (ASA) may prevent and/or attenuate lung injury.We conducted a systematic review of preclinical studies and meta-analysis of clinical studies investigating the efficacy of ASA in the setting of lung injury. Medline, embase, and cochrane databases were searched.The literature search yielded 1,314 unique articles. Fifteen preclinical studies and eight clinical studies fulfilled the in- and exclusion criteria. In the animal studies, the overall effect of ASA was positive, e.g., ASA improved survival and attenuated inflammation and pulmonary edema. Mechanisms of actions involved, among others, are interference with the neutrophil-platelets interaction, reduction of leukotrienes, neutrophil extracellular traps, and prostaglandins. High-dose ASA may be the drug of choice. A meta-analysis of three clinical studies showed an association between ASA use and a reduced incidence of ARDS (OR 0.59, 95% CI 0.36-0.98), albeit with substantial between-study heterogeneity. All studies had their own shortcomings in methodological quality.This systematic review of preclinical studies and meta-analysis of clinical studies suggests a beneficial role for ASA in ARDS prevention and treatment. However, the currently available data is insufficient to justify an indication for ASA in ARDS. The body of literature does support further studies in humans. We suggest clinical trials in which the mechanisms of action of ASA in lung injury models are being evaluated to guide optimal timing and dose, before prospective randomized trials.

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Eritoran tetrasodium (E5564) treatment for sepsis: review of preclinical and clinical studies.

Publications

Eritoran tetrasodium (E5564) treatment for sepsis: review of preclinical and clinical studies.

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