Could a daily pill shield transplant patients from a common virus?
NCT ID NCT07706166
First seen Jul 15, 2026 · Last updated Aug 27, 2026 · Updated 3 times
Summary
This study investigates whether the drug letermovir can prevent cytomegalovirus (CMV) infection in adults who have received a kidney or liver transplant and have been previously exposed to CMV. Participants take one letermovir tablet daily for 84 days after transplant. The goal is to see if this approach reduces the rate of CMV breakthrough or treatment withdrawal.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- letermovir
- What this could lead to
- If effective, letermovir could become a standard preventive treatment for CMV in moderate-risk transplant recipients, reducing infection-related complications.
- What could go wrong
- This is a single-arm Phase 4 study with no placebo comparison, so results may be less definitive. The drug may cause side effects or fail to prevent CMV in some patients.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 146 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Sep 2026
An estimate. Start dates often move.
- Expected to finish
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Sep 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * 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 Exclusion Criteria: * Known contraindication to letermovir or its excipients * Current participation in another CMV related study * Unwilling or unable to participate in the study protocol
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of Wisconsin - Madison
Madison, Wisconsin, 53792, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Could organs from HIV-Positive donors be safe for recipients with HIV?
- Oxygen bath for donor kidneys: a new hope for transplant success?
- Could smarter scores save lives on the liver transplant waitlist?