Letermovir for R+ Study
MISP CMV
An Interventional Study of Letermovir for Primary Prophylaxis of Cytomegalovirus Infection in Moderate Risk (R+) Abdominal Solid Organ Transplant Recipients
3 other identifiers
interventional
146
1 country
1
Brief Summary
The purpose of this clinical trial is to find out whether a medication, called letermovir, can help prevent a virus called cytomegalovirus (CMV) in participants who receive a kidney or liver transplant and who have already been exposed the CMV. Participants will take letermovir for 84 days.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_4
Started Aug 2026
Typical duration for phase_4
1 active site
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
July 9, 2026
CompletedFirst Posted
Study publicly available on registry
July 15, 2026
CompletedStudy Start
First participant enrolled
August 1, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 1, 2029
July 15, 2026
July 1, 2026
3 years
July 9, 2026
July 9, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Efficacy of letermovir as a prophylaxis of CMV
Efficacy will be measured through comparative rates of antiviral failure. Failure will be defined as withdrawal due to intolerance or breakthrough viral replication to a viral load \>1000 IU/mL.
84 days
Secondary Outcomes (1)
Percentage of participants who develop cytomegalovirus-specific cell-mediated immunity
84 days
Study Arms (1)
Receive letermovir
EXPERIMENTALParticipants will take letermovir
Interventions
Eligibility Criteria
You may qualify if:
- Adults who are at moderate risk for CMV after transplant (CMV IGG+, including D+/R+ or D-/R+)
- Adults who received a kidney transplant, liver transplant, or any combination thereof
You may not qualify if:
- Known contraindication to letermovir or its excipients
- Current participation in another CMV related study
- Unwilling or unable to participate in the study protocol
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Wisconsin, Madisonlead
- Merck Sharp & Dohme LLCcollaborator
Study Sites (1)
University of Wisconsin - Madison
Madison, Wisconsin, 53792, United States
MeSH Terms
Interventions
Study Officials
- PRINCIPAL INVESTIGATOR
David Al-Adra, MD
University of Wisconsin, Madison
Central Study Contacts
Office of Clinical Research Department of Surgery
CONTACT
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NA
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 9, 2026
First Posted
July 15, 2026
Study Start
August 1, 2026
Primary Completion (Estimated)
August 1, 2029
Study Completion (Estimated)
August 1, 2029
Last Updated
July 15, 2026
Record last verified: 2026-07
Data Sharing
- IPD Sharing
- Will not share