• Tomoko Fujii, Riki Ganeko, Yuki Kataoka, Robin Featherstone, Sean M Bagshaw, and Toshi A Furukawa.
• Department of Epidemiology and Preventive Service, Kyoto University Graduate School of Medicine, Kyoto, Japan.
• BMJ Open. 2016 Nov 21; 6 (11): e012908.

IntroductionPolymyxin-B immobilised haemoperfusion (PMX-HP) is a promising adjuvant strategy for the treatment of sepsis and septic shock. PMX-HP therapy works by clearing circulating endotoxin through binding to polymyxin-immobilised fibres during haemoperfusion. Small clinical trials have shown that PMX-HP therapy is associated with improved haemodynamic profile, oxygenation and survival. However, clear inferences have been largely inconclusive due to limitations in study design (eg, small, unblinded) and generalisability. We therefore propose to perform an up-to-date systematic review and evidence synthesis to describe the efficacy, safety and effectiveness of PMX-HP for adult patients with sepsis or septic shock.Methods And AnalysisWe will search the following databases from 1946 to 2016 MEDLINE (Ovid), EMBASE (Ovid), Cochrane Library, Health Technology Assessment Database (HTA), Cumulative Index to Nursing and Allied Health Literature (CINAHL), PubMed and 'Igaku Chuo Zasshi' (ICHUSHI) for randomised controlled trials of PMX-HP in critically ill patients with sepsis or septic shock. There will be no language restrictions in the electronic search for studies. Two reviewers will extract data and appraise the quality of each study independently. The primary outcome will be the pooled risk ratio of 28-day all-cause mortality. Serious adverse events and changes in organ dysfunction scores will also be evaluated. The secondary outcomes will be 90-day all-cause mortality, changes in haemodynamic profile and endotoxin levels, and health services use.Ethics And DisseminationOur systematic review will synthesise the evidence on use of the PMX-HP as an adjuvant therapy in sepsis/septic shock to improve patient-centred, physiological and health services outcomes. Research ethics is not required for this review. The study will be disseminated by peer-reviewed publication and conference presentation.Trial Registration NumberCRD42016038356.Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

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