ClinicalTrials.gg
RecruitingNCT04005469Updated Apr 23, 2026

Safety and Efficacy of Treprostinil (Remodulin®) In Reducing Ischemia-Reperfusion Injury During Kidney Transplantation

A Phase 1/2 interventional study of Treprostinil in Ischemia Reperfusion Injury and Delayed Graft Function, sponsored by Rhode Island Hospital. Recruiting at 1 site in United States. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-04-23.

Sponsored by Rhode Island Hospital · Phase 1/2, Interventional, and Prevention

From the registry’s dates

  • Started Nov 2020; still recruiting 5 years 11 months later.
Phase
Phase 1/2
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
All
01

Study summary

The objectives of this study are to test the preliminary safety and efficacy of a two-day peri-operative course of treprostinil in reducing ischemia-reperfusion injury in adult patients receiving a deceased donor kidney transplantation. Treprostinil, a prostacyclin analog, is expected to facilitate the restoration of blood supply to the revascularized kidney graft via its vasodilatory actions, well characterized protective effects, and longer elimination half-life. These properties and actions of treprostinil make it a strong drug candidate to reduce kidney graft dysfunction during kidney transplantation. An anticipated 20 participants undergoing deceased donor kidney transplant will be hospitalized and intensively monitored during an entire two-day Treatment Phase. An IV infusion using a dedicated central venous line will be used to administer treprostinil commencing approximately 2-3 hours before transplantation of the kidney graft and will continue for approximately 48 hours after completion of the transplant surgery. The primary endpoints include the safety and efficacy of treprostinil, with secondary endpoints including the evaluation of both biochemical and clinical endpoints post-transplantation.

02

Conditions studied

  • Ischemia Reperfusion Injury
  • Delayed Graft Function

Keywords

  • Ischemia-reperfusion injury
  • kidney transplantation
  • prostacyclin
  • treprostinil
  • delayed graft function
03

In context

Reperfusion Injury

260 studies on the registry are indexed under Reperfusion Injury; 43 are open to participants now.

This study's planned enrollment of 20 is below the median of 60 across 212 interventional studies indexed under Reperfusion Injury.

Browse Reperfusion Injury studies →

Lead sponsor

Rhode Island Hospital is the lead sponsor of 191 studies on the registry; 36 are open to participants now.

Of its 12 completed or terminated interventional studies of FDA-regulated products, 2 (17%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Male and female patients who will receive a deceased donor kidney aged 18 to 65 (inclusive) and are currently on the active transplant list at RIH.
  2. Documentation of a diabetes diagnosis as evidenced by one or more clinical features consistent will be noted for all patients.
  3. Written (and assent when applicable) obtained from subject or subject's legal representative and ability for subject to comply with the requirements of the study.

Exclusion criteria

Exclusion Criteria:

  1. Under the age of 18 years
  2. Difficult venous access
  3. > 40 kg/m2
  4. Patients with severe clinical gastroparesis as determined by repeated vomiting
  5. Prior GI surgery except for cholecystectomy, appendectomy, or Nissen fundoplication
  6. Known or history of inflammatory bowel disease or bezoars
  7. History of diverticulitis, diverticular stricture, and other intestinal strictures
  8. Be receiving any drug other than treprostinil or participating in any other investigational study
  9. Be receiving any prostanoid therapy to treat portopulmonary hypertension
  10. Have any known to prostaglandins, prostacyclin or treprostinil
  11. Have had a failed kidney transplant within the previous 180 days
  12. Be receiving any non-standard protocol or other non-standard treatment that could affect interpretation of the study results
  13. Those with significant cardiovascular disease including treatment with inotropes
  14. If female, be pregnant or nursing (confirmed by urine test)
  15. Presence of a condition or abnormality that in the opinion of the Investigators that would compromise the safety of the patient or the quality of the data
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

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BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (estimated)

Study arms

  • Experimental
    Trepostinil

    Treprostinil (Remodulin) will be administered IV by a standard 3 + 3 dose-escalation approach. This dosing model will be followed until a target dose of 15 mg/kg/min is achieved or if it is medically determined that side effects prevent dose escalation. IV infusion will commence approximately 2-3 hours before transplantation of the kidney graft and will continue for approximately 48 hours after completion of surgery, unless hemodynamic changes or tolerability require discontinuation of treprostinil.

    Drug: Treprostinil

Interventions

  • Treprostinil (Remodulin) will be administered IV by a standard 3 + 3 dose-escalation approach. This dosing model will be followed until a target dose of 15 mg/kg/min is achieved or if it is medically determined that side effects prevent dose escalation. IV infusion will commence approximately 2-3 hours before transplantation of the kidney graft and will continue for approximately 48 hours after completion of surgery, unless hemodynamic changes or tolerability require discontinuation of treprostinil.

    Also known as: Remodulin®

06

What researchers measure

Primary outcomes

  1. Serum creatinine (SCr)

    Primary efficacy assessment will include the cGFR using SCr during the first seven days post transplantation.

    Time frame: Day 1-7

Secondary outcomes

  1. INR

    biochemical end point

    Time frame: Day 7

  2. Urine output

    biochemical end point

    Time frame: Day 7

  3. Primary graft non-function; kidney failure

    dialysis, death or re-transplantation

    Time frame: Day 30

  4. Delayed graft function

    use of dialysis

    Time frame: Day 30

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Nov 2020 (actual). Primary completion is estimated for Jun 2028, 91 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 14, 2019
First posted
Jul 2, 2019
StartActual
Nov 13, 2020
Primary completionEst.
Jun 30, 2028
CompletionEst.
Jun 30, 2028
Last update
Apr 23, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 23, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04005469
Collaborators
University of Rhode Island, United Therapeutics
Responsible party
George Bayliss (MD, Rhode Island Hospital) — Principal investigator
First posted
Jul 2, 2019
Start date
Nov 13, 2020
Primary completion
Jun 30, 2028 (estimated)
Completion
Jun 30, 2028 (estimated)
Last update
Apr 23, 2026

Study contacts

George Bayliss, MD
Contact
gbayliss@Lifespan.org
401-444-8562
Nisanne Ghonem, PharmD, PhD
Contact
nghonem@uri.edu
401-874-4805

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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