NCT06976008

Brief Summary

Cytomegalovirus (CMV) infection has been associated with an increased risk of bacterial, fungal and viral infections in solid organ transplant recipients. The purpose of this study to evaluate if the occurrence of CMV viremia modify the ability to develop optimal immune responses against other pathogens in kidney transplant recipients (heterologous immunity). The objective of this project is to identify the immune pathways affected by CMV in the context of immunosuppression associated with kidney transplantation.

Trial Health

63
Monitor

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
41mo left

Started Oct 2025

Longer than P75 for not_applicable

Geographic Reach
1 country

4 active sites

Status
not yet recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress16%
Oct 2025Oct 2029

First Submitted

Initial submission to the registry

May 9, 2025

Completed
7 days until next milestone

First Posted

Study publicly available on registry

May 16, 2025

Completed
5 months until next milestone

Study Start

First participant enrolled

October 1, 2025

Completed
4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2029

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2029

Last Updated

September 12, 2025

Status Verified

September 1, 2025

Enrollment Period

4 years

First QC Date

May 9, 2025

Last Update Submit

September 5, 2025

Conditions

Keywords

Kidney transplantSolid organ transplantationCytomegalovirus infectionImmunomodulatory effect of cytomegalovirus infectionHeterologous infection

Outcome Measures

Primary Outcomes (1)

  • Impact of CMV infection on the heterologous innate immune response in kidney transplant patients

    Comparison of the amount of cytokine production after stimulation of innate immune cells with whole microorganisms (E. Coli, Candida, Aspergillus, influenza virus) in solid organ transplant recipients with and without CMV over time.

    12 months

Secondary Outcomes (1)

  • Impact of CMV infection on the heterologous adaptive immune response in kidney transplant patients

    12 months

Study Arms (2)

Kidney transplant recipients followed since the day of the transplantation

EXPERIMENTAL

Kidney transplant recipients followed since the day of the transplantation

Other: blood sampling

kidney transplant recipients with CMV viremia

EXPERIMENTAL

kidney transplant recipients with CMV viremia

Other: blood sampling

Interventions

Blood samples will be taken at different timepoints following CMV viremia to evaluate the impact of CMV viremia over time.

Kidney transplant recipients followed since the day of the transplantationkidney transplant recipients with CMV viremia

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • st cohort :
  • Age \> 18 years
  • patients with end-stage renal failure programmed for kidney transplantation with a live donor
  • nd cohort :
  • Age \> 18 years
  • kidney transplant recipient with CMV viremia

You may not qualify if:

  • \- Patients under guardianship, curatorship, legal protection.
  • For patients with end-stage renal failure scheduled to receive a kidney transplant from a living donor :
  • patients receiving a desensitization protocol (ABO or anti-HLA)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

Hôpital Bicêtre

Le Kremlin-Bicêtre, 94270, France

Location

Hôpital européen Georges Pompidou

Paris, 75015, France

Location

Hôpital Necker-Enfants Malades

Paris, 75015, France

Location

Insitut Pasteur

Paris, 75015, France

Location

MeSH Terms

Conditions

Cytomegalovirus Infections

Interventions

Blood Specimen Collection

Condition Hierarchy (Ancestors)

Herpesviridae InfectionsDNA Virus InfectionsVirus DiseasesInfections

Intervention Hierarchy (Ancestors)

Specimen HandlingClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisPuncturesSurgical Procedures, OperativeInvestigative Techniques

Study Officials

  • Alexandra Serris

    Assistance Publique - Hôpitaux de Paris

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Alexandra Serris, MD, PhD

CONTACT

Hélène Morel

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 9, 2025

First Posted

May 16, 2025

Study Start

October 1, 2025

Primary Completion (Estimated)

October 1, 2029

Study Completion (Estimated)

October 1, 2029

Last Updated

September 12, 2025

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will not share

Locations