A Study of Maribavir in Adults With Post-transplant Cytomegalovirus (CMV) Infection in Belgium (MARIBEL)

September 2, 2025 updated by: Takeda

Prospective, Non-interventional Study to Describe The Use of Maribavir and Its Effectiveness in Patients With Post-transplant Cytomegalovirus Infection/Disease in Line With Belgian Reimbursement Conditions (The MARIBEL Study)

Cytomegalovirus (CMV) is a common virus that infects many people. It can cause serious illness in people with weak immune systems especially in those undergoing transplants. Maribavir is a medicine approved for treating CMV infection in adults after transplant.

The main aim of this study is to check the use of maribavir and learn how safe and effective in treating adults with CMV infection after transplant in Belgium in line with the Belgian reimbursement criteria.

During the study, a participant's data will be collected for 2 years. The study does not have fixed visits to the hospital, but it is recommended collect data from routine visits and contacts.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
75

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 Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Belgium
      • Anderlecht, Belgium, 1070
      • Anderlecht, Belgium, 1070
        • Recruiting
        • Hôpital Erasme
        • Contact:
          • Site Contact
          • Phone Number: +32 (0) 555 33 34
        • Principal Investigator:
          • Kemlin, Dr.
      • Brussels, Belgium, 1200
        • Recruiting
        • Cliniques Universitaires Saint-Luc
        • Principal Investigator:
          • Xavier Poiré, Prof. Dr.
        • Contact:
      • Edegem, Belgium, 2640
        • Recruiting
        • UZA
        • Contact:
        • Principal Investigator:
          • Anke Verlinden, Dr.
      • Ghent, Belgium, 9000
      • Jette, Belgium, 1090
      • Leuven, Belgium, 3000
      • Liège, Belgium, 4000
        • Recruiting
        • CHU de Liège - site Sart Tilman
        • Contact:
        • Principal Investigator:
          • Willems, Prof. Dr.
        • Principal Investigator:
          • Antoine Bouquegneau, Prof. Dr.
      • Yvoir, Belgium, 5530
        • Recruiting
        • CHU UCL Namur - Site Godinne
        • Contact:
          • Site Contact
          • Phone Number: +32 81 42 38 74
        • Principal Investigator:
          • Planté-Bordeneuve, Dr.

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Participants who had a CMV infection/disease after SOT/HSCT and who start maribavir, according to summary of product characteristics (SmPC) and in line with Belgian reimbursement criteria for maribavir will be included.

Description

Inclusion Criteria:

  • Participant signed an informed consent form.
  • Aged greater than or equal to (>=) 18 years at the time of consent.
  • Received an HSCT/SOT.
  • Diagnosed with CMV infection/disease any time after the HSCT/SOT date.
  • Starting maribavir for the first time and in line with the Belgian reimbursement criteria.

Exclusion Criteria:

• Participant treated with maribavir before the start of the study.

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
All Participants
Participants with post-transplant CMV infection and/or disease that are refractory or intolerant to one or more prior therapies, who have undergone a solid organ transplant/ hematopoietic stem-cell transplantation (SOT/HSCT) and are treated with maribavir for the first time and in line with the Belgian reimbursement criteria, data will be collected and observed prospectively for up to 2 years.
Other: No Intervention
This is non-interventional study.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of Participants With Effectiveness of Maribavir on CMV Viremia Clearance
Time Frame: Up to 16 weeks
CMV viraemia clearance is defined as last CMV quantitative polymerase chain reaction (PCR) during maribavir treatment. Viral clearance plasma CMV DNA concentration below the lower limit of quantification (< LLOQ) less than [<] 137 international units per milliliters (IU/mL).
Up to 16 weeks
Duration of Treatment
Time Frame: From treatment start to discontinuation of maribavir (up to 16 weeks)
Duration of treatment is defined as time from treatment start to discontinuation of maribavir.
From treatment start to discontinuation of maribavir (up to 16 weeks)
Time to Viral Clearance
Time Frame: From treatment start to achievement of viral clearance (up to 2 years)
Time to viral clearance is defined as time from treatment start to achievement of viral clearance.
From treatment start to achievement of viral clearance (up to 2 years)
Number of Participants With Use of Maribavir in Daily Clinical Practice
Time Frame: Up to 16 weeks
Up to 16 weeks
Number of Participants Who Have Refractory CMV Infection With/Without Resistance, or Intolerance to a Previous CMV Treatment
Time Frame: Up to 16 weeks
Refractory CMV infection with resistance is defined as viral genetic alteration that decreases susceptibility to one or more antiviral drugs.
Up to 16 weeks
Percentage of Participants With Recurrence After Maribavir Treatment
Time Frame: Up to 2 years
Recurrence is defined as plasma CMV DNA concentration greater than or equal to (>=) LLOQ in 2 consecutive plasma samples, after achieving confirmed viremia clearance. Viremia clearance will be defined as plasma CMV DNA concentration below the lower limit of quantification (< LLOQ) that is <137 IU/mL.
Up to 2 years
Number of Participants With Treatment Related Adverse Events (AEs)
Time Frame: Up to 2 years
The investigator is required to provide an assessment of the relationship of an AE to the studied drug(s), based on the consideration of all available information about the event, including temporal relationship to drug administration, recognized association with drug product/class, pharmacological plausibility, and alternative etiology (e.g., underlying illness, concurrent conditions, concomitant treatments). An related AE is defined as AE that follows a reasonable temporal sequence from administration of the medication, vaccine, or device (including the course after withdrawal of the medication), and for which a causal relationship is at least a reasonable possibility, i.e., the relationship cannot be ruled out, although factors other than the medication, vaccine, or device, such as underlying diseases, complications, concomitant drugs, and concurrent treatments, may also have contributed.
Up to 2 years
Percentage of Participants With Drug Resistance
Time Frame: Up to 2 years
Percentage of participants with drug resistance (UL97/UL27 genes) testing will be reported.
Up to 2 years

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Takeda

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Study Director, Takeda

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 24, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 6, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 6, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 7, 2024

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 9, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 2, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • TAK-620-4014

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Takeda provides access to the de-identified individual participant data (IPD) for eligible studies to aid qualified researchers in addressing legitimate scientific objectives (Takeda's data sharing commitment is available on https://clinicaltrials.takeda.com/takedas-commitment?commitment=5). These IPDs will be provided in a secure research environment following approval of a data sharing request, and under the terms of a data sharing agreement.

IPD Sharing Access Criteria

IPD from eligible studies will be shared with qualified researchers according to the criteria and process described on https://vivli.org/ourmember/takeda/ For approved requests, the researchers will be provided access to anonymized data (to respect patient privacy in line with applicable laws and regulations) and with information necessary to address the research objectives under the terms of a data sharing agreement.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • CSR

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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