title: Protocol of a randomised controlled, open-label trial of ex vivo normothermic perfusion versus static cold storage in donation after circulatory death renal transplantation.
abstract: Ex vivo normothermic perfusion (EVNP) is a novel technique that reconditions the kidney and restores renal function prior to transplantation. Phase I data from a series of EVNP in extended criteria donor kidneys have established the safety and feasibility of the technique in clinical practice.
  
  
  
  This is a UK-based phase II multicentre randomised controlled trial to assess the efficacy of EVNP compared with the conventional static cold storage technique in donation after circulatory death (DCD) kidney transplantation. 400 patients receiving a kidney from a DCD donor (categories III and IV, controlled) will be recruited into the study. On arrival at the transplant centre, kidneys will be randomised to receive either EVNP (n=200) or remain in static cold storage (n=200). Kidneys undergoing EVNP will be perfused with an oxygenated packed red cell solution at near body temperature for 60 min prior to transplantation. The primary outcome measure will be determined by rates of delayed graft function (DGF) defined as the need for dialysis in the first week post-transplant. Secondary outcome measures include incidences of primary non-function, the duration of DGF, functional DGF defined as <10% fall in serum creatinine for 3 consecutive days in the first week post-transplant, creatinine reduction ratio days 2 and 5, length of hospital stay, rates of biopsy-proven acute rejection, serum creatinine and estimated glomerular filtration rate at 1, 3, 6 and 12 months post-transplant and patient and allograft survival. The EVNP assessment score will be recorded and the level of fibrosis and inflammation will also be measured using tissue, blood and urine samples. Ethics and dissemination. The study has been approved by the National Health Service (NHS) Health Research Authority Research Ethics Committee. The results are expected to be published in 2020.
  
  
  
  ISRCTN15821205; Pre-results.
authors.affiliation: Department of Surgery, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK.
authors.forename: Sarah A
authors.initials: SA
authors.lastname: Hosgood
authors.affiliation: Department of Surgery, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK.
authors.forename: Kourosh
authors.initials: K
authors.lastname: Saeb-Parsy
authors.affiliation: Freeman Hospital, Newcastle upon Tyne, UK.
authors.forename: Colin
authors.initials: C
authors.lastname: Wilson
authors.affiliation: Guy's & Thomas' NHS Foundation Trust, London, UK.
authors.forename: Christopher
authors.initials: C
authors.lastname: Callaghan
authors.affiliation: NHS Blood and Transplant, Bristol, UK.
authors.forename: Dave
authors.initials: D
authors.lastname: Collett
authors.affiliation: Department of Surgery, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK.
authors.forename: Michael L
authors.initials: ML
authors.lastname: Nicholson
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003080:Cold Temperature; D015925:Cryopreservation / Q000379:methods*; D051799:Delayed Graft Function / Q000209:etiology / Q000503:physiopathology; D005355:Fibrosis / Q000517:prevention & control; D006084:Graft Rejection / Q000503:physiopathology; D006801:Humans; D007166:Immunosuppressive Agents / Q000627:therapeutic use; D007668:Kidney / Q000473:pathology*; D016030:Kidney Transplantation / Q000379:methods*; D007902:Length of Stay; D008875:Middle Aged; D009926:Organ Preservation / Q000379:methods*; D019188:Organ Preservation Solutions / Q000494:pharmacology; D010477:Perfusion / Q000379:methods; D006435:Renal Dialysis / Q000706:statistics & numerical data; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D007166:Immunosuppressive Agents; D019188:Organ Preservation Solutions
keywords: TRANSPLANT SURGERY