Prediction of BK Virus Reactivation in Kidney Transplant Recipient

January 12, 2024 updated by: Suwasin Udomkarnjananun, King Chulalongkorn Memorial Hospital

Prediction of BK Virus Infection by Flow Cytometric Analysis of BK Virus-specific T Cell Responses in Kidney Transplant Recipients

There has been no effective predicting tool to accurately predict BKV reactivation after kidney transplantation. The aim is to elucidate the use of flow cytometric analysis for both intracellular cytokines and surface activation markers for BKV-specific T cell response in kidney transplant recipients.

Study Overview

Study Type

Interventional

Enrollment (Estimated)

60

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

      • Bangkok, Thailand, 10330
        • Recruiting
        • King Chulalongkorn Memorial Hospital
        • Contact:

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion criteria:

  1. New kidney transplantation cases (either living donor or deceased donor transplantation)
  2. Age ≥ 18 years old
  3. Agree to give a permission to blood sampling post-transplantation, and at the time of BK viremia.

Exclusion criteria:

  1. Pregnant
  2. Primary non-function of kidney allograft (i.e. kidney allograft never function).

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: Screening
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: BKV immune monitoring
  1. In this prospective cohort, the included kidney transplant recipients will receive regular post-transplantation care, including routine therapeutic drug monitoring of tacrolimus and screening for BK viremia. No extra medications beyond the standard of care will be given to the patients in this study.
  2. Whole blood will be drawn from kidney transplant recipients on day 30, day 180, and at the time of BK viremia. PBMCs will be separated and incubated with BK viral peptides.
  3. PBMCs will be stained for surface marker of activated T cells and intracellular cytokines 4. Phenotypic features of T cells will be analyzed under flow cytometry and correlated with the occurrence of BKV infection and immunosuppressive medications.
Blood will be drawn and investigated for BKV-specific T cell response.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
BKV-specific immune response
Time Frame: Day 30, Day 90 after transplantation before BK viremia
- To examine the capability of flow cytometry in predicting post-kidney transplant BKV infection, by the analyses of intracellular cytokines (interleukine-2) and surface activation markers (CD25) of T cells
Day 30, Day 90 after transplantation before BK viremia

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Dynamic change of BKV-specific immune response
Time Frame: Day 30, Day 90 after transplantation, irrespective ly to BK viremia
To examine the chonological change of BKV-specific immune response after transplantation, by the analyses of intracellular cytokines (interleukine-2) and surface activation markers (CD25) of T cells.
Day 30, Day 90 after transplantation, irrespective ly to BK viremia
BKV-specific immune response and immunosuppression regimen
Time Frame: Day 30, Day 90 after transplantation, in correlation to immunosuppressive medications
To examine the association between immunosuppressive regimen (tacrolimus, cyclosporine A, mycophenolate) and BKV-specific immune response after transplantation, by the analyses of intracellular cytokines (interleukine-2) and surface activation markers (CD25) of T cells.
Day 30, Day 90 after transplantation, in correlation to immunosuppressive medications

Collaborators and Investigators

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

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 (Actual)

May 1, 2023

Primary Completion (Estimated)

April 30, 2025

Study Completion (Estimated)

October 31, 2025

Study Registration Dates

First Submitted

January 4, 2024

First Submitted That Met QC Criteria

January 12, 2024

First Posted (Estimated)

January 23, 2024

Study Record Updates

Last Update Posted (Estimated)

January 23, 2024

Last Update Submitted That Met QC Criteria

January 12, 2024

Last Verified

January 1, 2024

More Information

Terms related to this study

Other Study ID Numbers

  • BKV-KCMH

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

No

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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