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Randomized Controlled Trial
. 2015 Aug 20;5(8):e007941.
doi: 10.1136/bmjopen-2015-007941.

Remote ischaemic conditioning on recipients of deceased renal transplants, effect on immediate and extended kidney graft function: a multicentre, randomised controlled trial protocol (CONTEXT)

Nicoline V Krogstrup  1 , Mihai Oltean  2 , Bo M Bibby  3 , Gertrude J Nieuwenhuijs-Moeke  4 , Frank J M F Dor  5 , Henrik Birn  6 , Bente Jespersen  1
Affiliations
Randomized Controlled Trial

Remote ischaemic conditioning on recipients of deceased renal transplants, effect on immediate and extended kidney graft function: a multicentre, randomised controlled trial protocol (CONTEXT)

Nicoline V Krogstrup et al. BMJ Open. .

Abstract

Introduction: Delayed graft function due to ischaemia-reperfusion injury is a frequent complication in deceased donor renal transplantation. Experimental evidence indicates that remote ischaemic conditioning (RIC) provides systemic protection against ischaemia-reperfusion injury in various tissues.

Methods and analysis: 'Remote ischaemic conditioning in renal transplantation--effect on immediate and extended kidney graft function' (the CONTEXT study) is an investigator initiated, multicentre, randomised controlled trial investigating whether RIC of the leg of the recipient improves short and long-term graft function following deceased donor kidney transplantation. The study will include 200 kidney transplant recipients of organ donation after brain death and 20 kidney transplant recipients of organ donation after circulatory death. Participants are randomised in a 1:1 design to RIC or sham-RIC (control). RIC consists of four cycles of 5 min occlusion of the thigh by a tourniquet inflated to 250 mm Hg, separated by 5 min of deflation. Primary end point is the time to a 50% reduction from the baseline plasma creatinine, estimated from the changes of plasma creatinine values 30 days post-transplant or 30 days after the last performed dialysis post-transplant. Secondary end points are: need of dialysis post-transplant, measured and estimated-glomerular filtration rate (GFR) at 3 and 12 months after transplantation, patient and renal graft survival, number of rejection episodes in the first year, and changes in biomarkers of acute kidney injury and inflammation in plasma, urine and graft tissue.

Ethics and dissemination: The study is approved by the local ethical committees and national data security agencies. Results are expected to be published in 2016.

Trial registration number: NCT01395719.

Keywords: delayed graft function; glomerular filtration rate; ischaemia reperfusion injury; remote ischemic conditioning.

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Figures

Figure 1
Figure 1
Randomisation algorithm (RIC or sham-RIC, 1:1) by the online block randomisation programme, stratified by centre and donor type. When both recipients of a kidney pair are included, randomisation is also stratified by operation order. RIC, remote ischaemic conditioning
Figure 2
Figure 2
Timing of intervention (± remote ischaemic conditioning), samples, measurements and follow- up; mGFR, measured glomerular filtration rate.
See this image and copyright information in PMC

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