Clinical trial Recruiting at 2 sites Phase2; Phase3 Interventional Ages 18 to 99

Letermovir versus valganciclovir to prevent CMV after heart transplant

Official title: VALganciclovir vs. LETermovir for Primary Prevention of CMV in Moderate to High-Risk Heart Transplant Recipients (The VALET-CMV Study)

Run by Columbia University · NCT07079735 · Data updated 2026-11-12

This trial will test whether letermovir or valganciclovir better prevents CMV viremia in adults at moderate-to-high CMV risk after a heart transplant.

More Heart Transplant trials

Quick facts

PhasePhase2; Phase3
Study typeInterventional
Ages18 Years to 99 Years
SexAll
Enrollment150 (estimated)
SponsorColumbia University
Academic / other
Locations2 sites (New York, New York and 1 other locations)
StatusRecruiting
StartedSeptember 12, 2025
Main results expectedJanuary 17, 2028
Study endsJanuary 17, 2029
Registry record updatedOctober 2, 2026
Trial IDNCT07079735 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18 or older who have just received a heart transplant, are moderate-to-high CMV serostatus risk, and have not yet started CMV prophylaxis.

Probably not a fit

Patients with recent or suspected CMV disease within the prior six months, those who have already started CMV prophylaxis, or those at low CMV risk are unlikely to benefit from participation.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a multicenter, prospective, randomized two-arm study comparing letermovir to valganciclovir as primary CMV prophylaxis in adult heart transplant recipients at moderate-to-high serostatus risk. Participants will be randomized to receive letermovir (with acyclovir for HSV prophylaxis for six months) or valganciclovir and will be followed for CMV viremia, CMV disease, and safety outcomes including leukopenia and neutropenia. Low-risk patients will be monitored observationally to better characterize CMV outcomes in that group. The trial is designed to confirm whether letermovir provides similar protection against CMV with a more favorable blood-count safety profile compared with valganciclovir in the heart transplant population.

Why it matters

Potential benefit: If successful, letermovir could prevent CMV viremia after heart transplant while reducing rates of leukopenia and neutropenia compared with valganciclovir.

How similar studies have gone: Previous studies in kidney, lung, and hematopoietic stem cell transplant populations have shown letermovir to be non-inferior to valganciclovir with substantially less leukopenia and neutropenia, but prospective data in heart transplant recipients are lacking.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Patients who are \>18 years of age who have received a heart transplant and have not started their CMV prophylaxis regimen will be included.

Exclusion Criteria:

History of or suspected CMV disease within 6 months prior is excluded.

Where it's running

  • NYP-Weill Cornell
    New York, New York, United States
    Recruiting
  • Columbia University/NYP Milstein Hospital
    New York, New York, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.