NCT06833463

Brief Summary

Many people who receive a kidney transplant develop problems with how their body processes sugar (glucose). This includes conditions like prediabetes and diabetes, which can lead to more health issues, such as heart problems and infections. One of the main medications used after a kidney transplant, called tacrolimus, can contribute to these sugar problems. Tacrolimus helps protect the new kidney, but it can also harm the cells in the pancreas that produce insulin, a hormone that controls blood sugar. Other factors, such as stress on the body and insulin resistance, can make things worse. The effect of tacrolimus on blood sugar may depend on how the body processes the drug. Some people break down tacrolimus quickly (fast metabolizers), so they need higher doses to reach the right level in their blood. Others break it down more slowly (slow metabolizers) and require lower doses. Doctors can measure how fast someone metabolizes tacrolimus using aparameter called the concentration-to-dose (C/D) ratio. This study aims to find out what increases the risk of developing blood sugar problems after a kidney transplant. It will focus on how quickly patients process tacrolimus and whether this affects their risk of developing diabetes. The study will also look at how common these issues are in kidney transplant patients in Poland.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P50-P75 for all trials

Timeline
22mo left

Started May 2025

Typical duration for all trials

Geographic Reach
1 country

6 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress35%
May 2025Jan 2028

First Submitted

Initial submission to the registry

February 13, 2025

Completed
5 days until next milestone

First Posted

Study publicly available on registry

February 18, 2025

Completed
3 months until next milestone

Study Start

First participant enrolled

May 29, 2025

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 30, 2027

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 30, 2028

Last Updated

April 2, 2026

Status Verified

April 1, 2026

Enrollment Period

2.4 years

First QC Date

February 13, 2025

Last Update Submit

April 1, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Glucose metabolism disorders during tacrolimus treatment

    Percentage of patients diagnosed with: * Impaired fasting glucose and/or glucose intolerance (prediabetes) * Post-transplant diabetes mellitus (PTDM) requiring pharmacotherapy,

    The endpoint will be determined at 3, 6, and 12 months after transplantation

  • Risk factors for glucose metabolism disorders

    Odds ratio for glucose metabolism disorders (prediabetes, PTDM) for the following variables: the rate of tacrolimus metabolism, cumulative tacrolimus exposure, cumulative glicocorticosteroid exposure, age, sex, body mass index

    3, 6, and 12 months after transplantation

Secondary Outcomes (1)

  • Fasting glucose

    over a period of 1-12 months

Interventions

Treatment with LCP Tacro will begin on the day of the kidney transplant. If a patient is switching from another form of tacrolimus to LCP Tacro, the transition will be completed no later than day 8, following the standard procedures of the medical institution.

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Adult kidney graft receipients transplanted in the participating study sites

You may qualify if:

  • Age ≥ 18 years
  • Recipients of a kidney transplant from a living or deceased donor
  • Standard immunosuppressive regimen post-kidney transplantation (KTx) including Envarsus®
  • LCP Tacrolimus therapy initiated from the day of KTx or conversion from another tacrolimus formulation to LCP Tacrolimus by day 8 at the latest, according to the institution's routine practice
  • Informed patient consent to participate in the study

You may not qualify if:

  • Diagnosis of diabetes (type 1 or type 2) treated with diet or glucose-lowering drugs
  • Random glycemia/HbA1c levels justifying a diagnosis of diabetes at the time of study enrollment
  • Kidney retransplantation
  • Recipients of a multi-organ transplant
  • Use of glucagon-like peptide-1 (GLP-1) receptor agonists for weight loss
  • Use of flozins for renal or cardiac indications
  • Chronic use of drugs affecting carbohydrate metabolism, such as glucocorticosteroids

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (6)

Department of Nephrology, Transplantology and Internal Diseases, Medical University of Gdansk

Gdansk, 80-952, Poland

RECRUITING

Clinical Department of Nephrology, Dialysis, Transplantology and Internal Medicine

Krakow, 30-688, Poland

RECRUITING

Department of Internal Diseases and Transplant Nephrology, Medical University of Lodz

Lodz, 90-153, Poland

NOT YET RECRUITING

Department of Transplantology and General Surgery, Provincial Hospital

Poznan, 60-479, Poland

RECRUITING

Department and Clinic of Nephrology, Dialysis and Internal Medicine, Medical University of Warsaw

Warsaw, 02-097, Poland

NOT YET RECRUITING

Department and Clinic of Nephrology and Transplantation Medicine, University Clinical Hospital

Wroclaw, 50-556, Poland

RECRUITING

MeSH Terms

Interventions

Tacrolimus

Intervention Hierarchy (Ancestors)

MacrolidesLactonesOrganic Chemicals

Study Officials

  • Alicja Dębska-Ślizień, Professor

    Department of Nephrology, Transplantology and Internal Diseases, Medical University of Gdansk, Gdansk, Poland

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Roman Hożejowski, MD

CONTACT

Tomasz Dębowski, MD, PhD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 13, 2025

First Posted

February 18, 2025

Study Start

May 29, 2025

Primary Completion (Estimated)

October 30, 2027

Study Completion (Estimated)

January 30, 2028

Last Updated

April 2, 2026

Record last verified: 2026-04

Locations