Clinical trial Recruiting at 1 site Phase1; Phase2 Interventional Ages 18 and up

Vonoprazan to reduce delayed graft function after deceased-donor kidney transplant

Official title: A Multicenter, Single-Arm, Exploratory Study Evaluating the Effect of Perioperative Oral Vonoprazan Fumarate on the Incidence of Delayed Graft Function in Deceased Donor Kidney Transplant Recipients

Run by First Affiliated Hospital of Chongqing Medical University · NCT07275632 · Data updated 2026-11-12

This trial will test whether giving vonoprazan around the time of surgery lowers the chance of delayed graft function in adults receiving their first deceased-donor kidney transplant.

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment47 (estimated)
SponsorFirst Affiliated Hospital of Chongqing Medical University
Academic / other
Locations2 sites (Chongqing and 1 other locations)
StatusRecruiting
StartedDecember 10, 2025
Main results expectedOctober 31, 2026
Study endsDecember 31, 2026
Registry record updatedDecember 23, 2025
Trial IDNCT07275632 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (≥18 years) undergoing their first deceased-donor kidney transplant who have not used P-CABs in the prior month, can take oral medication, and will receive standard post-transplant immunosuppression are eligible.

Probably not a fit

Patients receiving living-donor or multi-organ transplants, those with intraoperative hyperacute rejection or a high risk of primary graft non-function, or those unable to take oral medication postoperatively are unlikely to benefit from this protocol.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This exploratory, multicenter, single-arm Phase 1/2 study gives vonoprazan fumarate starting on the day of transplantation and continuing once daily for seven days to adult recipients of a first deceased-donor kidney. The primary outcome is the incidence of delayed graft function, with secondary outcomes including early serum creatinine decline, eGFR recovery, and safety measures. The rationale is that vonoprazan, a potassium-competitive acid blocker, may improve macrophage phagocytic function and reduce kidney inflammation to promote earlier graft recovery. Participants are enrolled at two tertiary hospitals and followed in-hospital and after discharge to capture clinical and laboratory endpoints.

Why it matters

Potential benefit: If successful, perioperative vonoprazan could lower early graft dysfunction rates and speed recovery of kidney function after deceased-donor transplantation.

How similar studies have gone: Using vonoprazan to improve transplant outcomes is largely novel—preclinical and translational data hint that P-CABs can affect macrophage function, but clinical evidence in transplantation is limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥ 18 years at time of transplantation.
* Undergoing first-time deceased-donor kidney transplantation.
* No administration of proton-competitive acid blockers (P-CABs) in the 1 month prior to transplantation.
* Consent to receive the standard immunosuppressive therapy post-transplantation.
* Ability and willingness to provide informed consent and comply with study procedures and follow-up.
* Complete baseline clinical data available.

Exclusion Criteria:

* Receiving a living-donor kidney transplant or multi-organ transplantation.
* Previous history of any solid organ or cellular transplantation (with the exception of corneal transplants).
* Intraoperative occurrence of hyperacute rejection or confirmed graft non-function (e.g., renal artery thrombosis).
* Presence of high risk for primary graft non-function (e.g., severe injury to the transplant renal artery).
* Severe postoperative intestinal obstruction requiring prolonged fasting or inability to take oral medication in perioperative period.
* Known history of hypersensitivity to vonoprazan fumarate or any of its excipients.
* Subjects with severe hepatic impairment (Child-Pugh Class C).
* Concomitant use of strong CYP3A4 inhibitors (e.g., ritonavir, clarithromycin).
* Current therapy with atazanavir or rilpivirine.
* Any other condition deemed by the investigator to be inappropriate for study participation (e.g., uncontrolled active infection, severe peptic ulcer, pregnancy or lactation).

Where it's running

  • The First Affiliated Hospital of Chongqing Medical University
    Chongqing, China
    Recruiting
  • Sun Yat-sen Memorial Hospital, Sun Yat-sen University
    Guangzhou, China
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.