A Study of Maribavir in Adults With Post-transplant Cytomegalovirus (CMV) Infection in Belgium
MARIBEL
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)
1 other identifier
observational
75
1 country
9
Brief Summary
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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Feb 2025
9 active sites
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
First Submitted
Initial submission to the registry
November 6, 2024
CompletedFirst Posted
Study publicly available on registry
November 7, 2024
CompletedStudy Start
First participant enrolled
February 24, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
September 1, 2026
September 9, 2025
September 1, 2025
1.4 years
November 6, 2024
September 2, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (8)
Number of Participants With Effectiveness of Maribavir on CMV Viremia Clearance
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
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 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)
Percentage of Participants With Drug Resistance
Percentage of participants with drug resistance (UL97/UL27 genes) testing will be reported.
Up to 2 years
Number of Participants With Use of Maribavir in Daily Clinical Practice
Up to 16 weeks
Number of Participants Who Have Refractory CMV Infection With/Without Resistance, or Intolerance to a Previous CMV Treatment
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
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)
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
Study Arms (1)
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.
Interventions
Eligibility Criteria
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.
You may qualify if:
- 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.
You may not qualify if:
- Participant treated with maribavir before the start of the study.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Takedalead
Study Sites (9)
Hôpital Erasme
Anderlecht, 1070, Belgium
Institut Jules Bordet
Anderlecht, 1070, Belgium
Cliniques Universitaires Saint-Luc
Brussels, 1200, Belgium
UZA
Edegem, 2640, Belgium
UZGent
Ghent, 9000, Belgium
UZBrussel
Jette, 1090, Belgium
UZLeuven
Leuven, 3000, Belgium
CHU de Liège - site Sart Tilman
Liège, 4000, Belgium
CHU UCL Namur - site Godinne
Yvoir, 5530, Belgium
Related Links
Study Officials
- STUDY DIRECTOR
Study Director
Takeda
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 6, 2024
First Posted
November 7, 2024
Study Start
February 24, 2025
Primary Completion (Estimated)
August 1, 2026
Study Completion (Estimated)
September 1, 2026
Last Updated
September 9, 2025
Record last verified: 2025-09
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR
- 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.
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.