Table 1.

Active prospective clinical trials on HOPE (hypothermic oxygenated machine perfusion) in kidney transplants (as assessed on clinicaltrials.gov and isrctn.com on February 27, 2019).

Trial number	Study center	Study type	Enrollment	Donor group	MPa point of time
NCT03378817 (Present trial)	University Hospital Aachen, Aachen, Germany	CSb	15	ECDc-donated after brain death	End-ischemic
NCT03031067	University of Bologna, Bologna, Italy	CS	10	ECD (donated after brain or cardiac death unclear)	Unclear
NCT02621281	First Affiliated Hospital Xi’an Jiaotong University, Xi’an, Shaanxi, China	RCTd	400	donated after cardiac death	Immediately after retrieval
ISRCTN32967929	University of Leuven, Leuven, Belgium	RCT	210	donated after cardiac death	Immediately after retrieval
ISRCTN63852508	University Clinic Essen, Essen, Germany	RCT	262	ECD-donated after brain death	End-ischemic

^aMP: machine perfusion.

^bCS: cohort study.

^cECD: extended criteria donor.

^dRCT: randomized controlled trial.