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NCT Number: NCT06263023

A Central Preservation and Assessment Service to Optimize Donor Kidney Allocation

This is a study to collect information to assess if transporting hard-to-place (HTP) donor kidneys to a central preservation and assessment facility with dedicated organ assessment capabilities increases allocation success to transplant hospitals.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

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Key information

Conditions

Age range

16 year–75 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Edward Hines, Jr. VA Hospital, Chicago, Illinois, United States

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About this study

This is an Observational study of a centralized kidney assessment facility providing brief sub-normothermic machine perfusion (SNMP) to HTP donor kidneys to provide transplant centers additional information for accepting HTP kidneys.

This study is intended to collect data to evaluate the feasibility of a dedicated central service to determine if additional assessment data helps increase allocation to transplant centers. Transplantation will follow standard-of-care at each transplant center, including required post-transplant data collection, which must be reported to the OPTN registry by the center.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Donor Kidney Inclusion Criteria:

  • Be considered HTP, by receiving refusals from every transplant center within the 250 nm allocation radius or similar definition by the local OPO.
  • From a Male or female deceased donor, aged 16- 75 years old.
  • Kidney initially procured, preserved, and packaged with intent to transplant.
  • LAP provides informed consent for organ donation for transplant and research purposes.
  • The HTP donor kidney must be allocated to a participating transplant center by a participating OPO, and the transplant center makes the decision to send kidney to Sponsor's central preservation and assessment facility for SNMP assessment and preservation prior to determining suitability for allocation.

Donor Kidney Exclusion Criteria:

  • From a Donor with pre-admission diagnosis of end stage renal failure.
  • Obvious surgical damage to artery(s), vein(s), or ureter(s) preventing machine perfusion.
  • From a donor with confirmed HIV (+), HBVSAg (+) and/or HCV NAT (+) serology results.
  • No LAP consent for both transplant and research purposes.
  • Cannot arrive to Sponsor's central preservation and assessment facility before reaching 24 hours of cold ischemic time (CIT).

Treatment and study plan

Sub-Normothermic Machine Preservation and Assessment

Other

Human kidneys from HTP deceased donors will be transported to the Sponsor's central preservation and assessment facility and placed onto a machine perfusion system in a sterile operating room for a brief period of Sub-Normothermic Machine Perfusion (SNMP). Basic parameters including internal renal resistance, oxygen, and electrolyte levels will be recorded using standard point-of-care hospital analyzers. Accepted kidneys will be transported to a participating transplant center using a portable oxygenated LifePort Hypothermic Machine Preservation (HMP) device.

Primary outcomes

  1. Transplant Allocation Success

    Time frame: 1 year

    The primary objective for this study is a 50% success rate or higher for allocation of Hard-to-Place (HTP) kidneys to a participating transplant center after sNMP assessment at the Sponsor's central facility.

Secondary outcomes

  1. 7-Day Delayed Graft Function (DGF)

    Time frame: 7 days post-transplant

    Requirement for dialysis within first 7 days post-transplant

  2. Graft Survival

    Time frame: 1- and 3-months post-transplant

    Donor kidney survival

  3. Patient Survival

    Time frame: 1- and 3-months post-transplant

    Recipient survival

  4. Serum Creatinine (sCr)

    Time frame: 1- and 3-months post-transplant

    Recipient sCr

  5. eGFR

    Time frame: 1- and 3-months post-transplant

    Recipient estimated glomerular filtration rate

  6. Long term data collection- Graft Survival

    Time frame: Annually, up to 3-years post-transplant

    Graft survival

  7. Long term data collection- Patient Survival

    Time frame: Annually, up to 3-years post-transplant

    Patient survival

  8. Long term data collection- Serum Creatinine

    Time frame: Annually, up to 3-years post-transplant

    Recipient sCr

  9. Long term data collection- eGFR

    Time frame: Annually, up to 3-years post-transplant

    Recipient estimated glomerular filtration rate

Sponsors and collaborators

Lead sponsor

34 Lives, PBC

Industry

Collaborators

  • Barnes-Jewish Hospital
  • Duke University Hospital, USA
  • Edward Hines Jr. VA Hospital
  • Erie County Medical Center, Buffalo, NY
  • Indiana University Health
  • MOUNT SINAI HOSPITAL
  • University of Miami
  • University of Wisconsin, Madison

Registry information

Official study title

An Observational Study of a Dedicated Preservation and Assessment Service to Optimize Organ Utilization for Hard-to-Place Kidneys

Acronym: OPTIMAL

Important dates

Study start
2024
Primary completion
2025
Study completion
2028
First posted
Feb 16, 2024
Registry last updated
Apr 2, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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