Hypothermic Kidney Machine Perfusion With Omnisol (OMNIPUMP)

October 30, 2026 updated by: Vivalyx GmbH

A Single-Center, Non-Randomized Safety Study on Hypothermic Machine Perfusion With Omnisol Preservation Solution of Deceased Donor Kidneys Prior to Transplantation

Insufficient availability of organs from brain dead (DBD) and living donors has necessitated increased use of less than optimal organs from donation after cardiac death (DCD) or from extended criteria donors. Preservation of DCD organs using the current clinically applied preservation solutions is associated with up to 73% incidence of delayed graft function, highlighting the need for new preservation solutions designed to improve early graft function.

Omnisol is expected to result in equivalent or improved kidney preservation as compared to currently marketed organ preservation solutions used for HMP.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Detailed Description

Hypothermic machine perfusion (HMP) is increasingly used for the preservation of deceased donor kidneys before transplantation. Omnisol was developed as an extracellular-type organ preservation solution for the flushing and HMP of donor kidneys.

Omnisol organ preservation solution was developed to improve kidney transplant outcomes. It is an extracellular-type solution containing the synthetic colloid polyethylene glycol (PEG) and several impermeants for optimal osmotic pressure. It further contains multiple buffering agents for the prevention of intracellular acidosis, antioxidants for the minimization of ROS-induced injury and amino acids and other substrates for supporting the cell metabolism during hypothermic machine perfusion (HMP) as well as the provision of substrates for regeneration of high-energy phosphate compounds during graft reperfusion.

This prospective, single-center, non-randomized clinical investigation is designed primarily to evaluate the safety of Omnisol when used for the wash-out and HMP of kidneys from deceased donors before transplantation. The investigation incorporates a retrospective matched-control design, where each recipient of a kidney preserved with Omnisol will be matched with two recipients previously transplanted at the same center with kidneys preserved by HMP using UW-MPS.

This study employs a back-to-base design, meaning that after arrival at the transplant center according to standard of care, the kidney is flushed with Omnisol and transferred to HMP using Omnisol in the standard of care perfusion machine until implantation.

Study Type

Interventional

Enrollment (Estimated)

16

Phase

  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

Inclusion for donor:

  • Donor age > 18 years
  • Brain Death (DBD) or Circulatory Death (DCD)
  • Accepted for transplantation according to local criteria
  • For DCD donors: functional warm ischemia time (WIT) ≤ 30 minutes and total WIT ≤ 60 minutes
  • Cold ischemia time (CIT) prior to HMP with Omnisol no greater than 14 hours

Inclusion for recipient:

  • Male or female, age > 18 years
  • Able and willing to provide informed consent and comply with all study requirements (in opinion of investigator or deputy)
  • General inclusion criteria applicable to kidney transplantation:
  • Listed for renal transplantation due to end stage renal disease on OPO list
  • Able and willing to comply with all study requirements (in opinion of investigator or deputy)
  • Fit to proceed with kidney

Exclusion Criteria:

Exclusion for donor:

• Donor kidneys accepted as a pair for dual transplant

Exclusion for recipient:

  • General exclusion criteria applicable to kidney transplantation
  • Breast-feeding or pregnant, as confirmed by pregnancy test or blood test, or plans to become pregnant over the study period
  • Participation in an investigational study likely to affect interpretation of the trial data
  • Mental disabilities that may affect the understanding of the study requirements including the ability to adhere to medication regime (in opinion of investigator or deputy)
  • Undergoing living donor kidney transplantation
  • Undergoing dual kidney transplantation
  • Undergoing transplantation of other organ(s) in addition to the kidney
  • Highly sensitized patients with cPRA > 80% (based on routine HLA antibody assessment)
  • Positive donor-specific crossmatch, if performed per institutional standard practice
  • Other substantial risk of transplant not proceeding (in opinion of investigator or deputy)
  • Other significant disease or disorder which, in the opinion of the Investigator, may: (i) put the participant at risk by participating in the study; (ii) influence the result of the study; (iii) affect the participant's ability to participate in the study

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Donation after brain death (DBD)

Recipients of a kidney from a donor after brain death (DBD). After arrival at the transplant center according to standard of care, kidneys will be flushed with Omnisol and placed on the standard of care HMP machine for perfusion with Omnisol until transplantation.
Device: Omnisol organ preservation solution

Omnisol for HMP of DBD or DCD donors.
Experimental: Donation after circulatory death (DCD)

Recipients of a kidney from a donor after circulatory death (DCD). After arrival at the transplant center according to standard of care, kidneys will be flushed with Omnisol and placed on the standard of care HMP machine for perfusion with Omnisol until transplantation.
Device: Omnisol organ preservation solution

Omnisol for HMP of DBD or DCD donors.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence of Delayed Graft Function
Time Frame: 7 days post-transplantation.

Incidence of delayed graft function, defined as the requirement for at least one dialysis session within the first 7 days after transplantation, excluding a single dialysis session performed solely for hyperkalemia or volume overload.
7 days post-transplantation.
Graft Survival
Time Frame: 30 days post-transplantation.

30-day graft survival, censored and uncensored for recipient death.
30 days post-transplantation.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Graft Survival
Time Frame: 3, 6 and 12 months post-transplantation.

Graft survival, censored and uncensored for recipient death.
3, 6 and 12 months post-transplantation.
Recipient Survival
Time Frame: 30 days, 3, 6 and 12 months post-transplantation.

Rate of recipient survival.
30 days, 3, 6 and 12 months post-transplantation.
Kidney Graft Function
Time Frame: 30 days, 3, 6 and 12 months post-transplantation.

Estimated glomerular filtration rate (eGFR) calculated using the CKD-EPI creatinine equation.
30 days, 3, 6 and 12 months post-transplantation.
Primary Non-Function
Time Frame: 30 days, 3, 6 and 12 months post-transplantation.

Incidence of irreversible graft failure with no initial evidence of graft function following transplantation.
30 days, 3, 6 and 12 months post-transplantation.
Duration of Delayed Graft Function
Time Frame: 30 days post-transplantation.

Duration of delayed graft function in participants who require renal replacement therapy after kidney transplantation.
30 days post-transplantation.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Vivalyx GmbH

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

January 1, 2027

Primary Completion (Estimated)

May 1, 2027

Study Completion (Estimated)

May 1, 2028

Study Registration Dates

First Submitted

October 30, 2026

First Submitted That Met QC Criteria

October 30, 2026

First Posted (Actual)

November 6, 2026

Study Record Updates

Last Update Posted (Actual)

November 6, 2026

Last Update Submitted That Met QC Criteria

October 30, 2026

Last Verified

October 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • OMNISOL_HMP_US

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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