The chemokine CXCL8 plays a key role in the recruitment and activation of polymorphonuclear neutrophils in post-ischemia reperfusion injury after solid organ transplantation. Reparixin is a novel, specific inhibitor of CXCL8. This study is configured to explore the safety and efficacy of reparixin in preventing the delayed graft function (DGF) after kidney transplantation.
Delayed graft function (DGF) is the most common allograft complication in the immediate kidney post-transplant period, affecting 25-35% of all patients who receive a cadaver graft, but rates up to 50% have been reported, especially in recipients of kidneys from marginal donors. It is an important clinical complication as it requires dialysis, prolongs hospitalisation, raises the cost of transplantation, and makes more difficult the management of immunosuppressive therapy. Although the effects of DGF on long-term graft function are still debated, there is overall increasing evidence that DGF reduces long-term graft survival. Moreover, given the well documented impact of acute rejection on long-term graft survival, it is conceivable that DGF and acute rejection synergize in negatively influencing long-term graft survival. Kidney reperfusion, after long cold ischemia period, is associated with an inflammatory reaction characterized by massive polymorphonuclear leukocyte (PMN) infiltration both at the glomerular and tubular levels. The importance of CXCL8 in recruiting PMN in kidney tissue during the ischemic time and after reperfusion has been clearly documented. The efficacy of reparixin in preventing PMN infiltration and tissue damage in rat models of kidney transplantation and lung transplantation, as well as the safety shown in human phase 1 studies, provide the rationale for a clinical study aimed at evaluating the effect of reparixin in preventing DGF after kidney transplantation
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
DOUBLE
Enrollment
80
The Investigational Product was administered as an intravenous infusion into a (high flow) central vein or through an arterio-venous fistula, by an infusion pump adequate to provide reliable infusion rates, as per treatment schedule. Total infusion volume did not exceed 500 mL/24 hours. A dose of 2.772 mg/kg body weight/hour was to be administered for 12 hours. Placebo was volume/schedule matched saline.
A dose of 2.244 mg/kg body weight was to be administered over a 30-minute period, followed by a 1.5-hour interval. Twelve doses were to be administered over a total period of 22.5 hours. Placebo was volume/schedule matched saline.
Transplant Center, University of Minnesota Medical School
Minneapolis, Minnesota, United States
Division of Transplantation, Drexel University College of Medicine
Philadelphia, Pennsylvania, United States
Service de Nephrologie et Transplantation, Hopital Lapeyronie, Centre Hospitalier Universitaire Montpellier
Montpellier, France
Creatinine Clearance (CrCl) in the Immediate Post-transplant Period
CrCl was determined by two 60 minute urine collections, during the time intervals 1-3 and 10-12 hours of allograft reperfusion. Blood was withdrawn at the midpoint of each urine collection. CrCl at each timepoint was calculated according to the formula: creatinine clearance (mL/minutes) = urine creatinine (mmol/L) x urine volume (mL) / serum creatinine (mmol/L) x time of collection (minutes) An average was to be calculated from the two 60 minute values in each interval.
Time frame: 1-3 and 10-12 hours post allograft reperfusion
Renal Function Tests - Serum Creatinine
Serum creatinine (SrCr) was measured daily from Day 1 up to 7 days post-transplant or up to hospital discharge, whichever occurred earlier; in patients undergoing dialysis, SrCr values were measured immediately before dialysis.
Time frame: daily up to day 7 post-transplant or hospital discharge
Renal Function Tests - Calculated Glomerular Filtration Rate
Calculated glomerular filtration rate (GFR) was measured daily from Day 1 up to 7 days post-transplant or up to hospital discharge, whichever occurred earlier; in patients undergoing dialysis, SrCr values were measured immediately before dialysis
Time frame: from Day 1 up to 7 days post-transplant or up to hospital discharge
Renal Function Tests - Urine Output
Urine output, measured in the interval from transplant to 8:00 of Day 1, and then daily from Day 2 up to 7 days post-transplant or up to hospital discharge, whichever occurred earlier
Time frame: from Day 1 up to 7 days post-transplant or up to hospital discharge
Number of Patients Requiring Dialysis Within 7 Days Post-transplant
The number of patients who required dialysis within 7 days post-transplant was evaluated.
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placebo was volume/schedule matched saline
Service de Transplantation et Soins Intensifs Nephrologiques, Hopital Necker
Paris, France
Divisione di Nefrologia e Dialisi, Ospedali Riuniti di Bergamo
Bergamo, Italy
Divisione di Nefrologia e Dialisi, Azienda Ospedaliera Spedali Civili di Brescia
Brescia, Italy
Università degli Studi di Padova, Clinica Chirurgica III
Padua, Italy
Renal Transplant Unit, Hopital Clinic i Provincial de Barcelona
Barcelona, Spain
Division of Nephrology, Institut Catala de la Salut, Ciutat Sanitaria i Universitaria de Bellvitge
Barcelona, Spain
Time frame: up to day 7 post-transplant
Number of Days on Dialysis Before Resuming Kidney Function
the number of days on dialysis before resuming kidney function was evaluated.
Time frame: up to Day 7 post-transplant
Number of Patients With Immediate, Slow and Delayed Graft Function
The number of patients who required dialysis within 7 days post-transplant was evaluated. Immediate graft function: SrCr ≤3 mg/dL on post operative day 5) Slow graft function: SrCr \>3 mg/dL dL on post operative day 5, no need of dialysis) Delayed graft function: Dialysis needed in the first week)
Time frame: day 5 post-transplant
Duration of Hospital Stay
The mean duration of hospital stay was evaluated.
Time frame: first 30 days post-transplant
Mortality
Mortality in the first 30 days post-transplant was evaluated.
Time frame: first 30 days post-transplant
Serum Creatinine at Month 1, Month 6 and Month 12
Serum creatinine (SrCr) was measured at Month 1, Month 6 and Month 12.
Time frame: at Month 1, Month 6 and Month 12
Calculated Serum Creatinine Clearance at Month 1, Month 6 and Month 12
Creatinine clearance (CrCl) is the volume of blood plasma cleared of creatinine per unit time. It is a rapid and cost-effective method for the measurement of renal function.
Time frame: at Month 1, Month 6 and Month 12
Acute Rejection Episodes at Month 6 and Between Month 6 and Month 12
Acute rejection defined as an increase in serum creatinine level after exclusion of other causes of graft dysfunction, accompanied by a sudden decline in glomerular filtration rate and renal function and well-established diagnostic features on kidney allograft biopsy which can be either antibody-mediated and/or T cell-mediated and can occur at any time after transplant.
Time frame: at Month 6 and between Month 6 and Month 12
Patient Survival Rate
Numbers of patients alive, dead, and lost to follow up are reported.
Time frame: at Month 1, Month 6 and Month 12
Graft Survival Rate
Graft failure was defined as the failure of graft function for any reason, ultimately requiring renal replacement therapy and/or retransplantation (United States Renal Data System \[USRDS\] 2017.
Time frame: at Month 1, Month 6 and Month 12