Comparing methods to monitor HCMV infections in transplant patients on letermovir

Comparison of Two Strategies for Monitoring HCMV Breakthrough Infections During Letermovir Prophylaxis. a Multicenter, Randomized, Open-label Trial

Not applicable Interventional Fondazione IRCCS Policlinico San Matteo di Pavia · NCT06339892

This study is testing two ways to check for HCMV infections in transplant patients taking letermovir to see which method helps avoid unnecessary antiviral treatments.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment140 (estimated)
Ages18 Years and up
SexAll
SponsorFondazione IRCCS Policlinico San Matteo di Pavia Academic / other
Drugs / interventionsprednisone
Locations8 sites (Brescia, BS and 7 other locations)
Trial IDNCT06339892 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to evaluate two different strategies for monitoring human cytomegalovirus (HCMV) infections in patients who have undergone hematopoietic stem cell transplantation and are receiving letermovir (LTV) as prophylaxis. The study will compare the detection of HCMV DNA in blood with and without prior digestion of non-infectious DNA using DNAse. Patients will be randomized into two groups: one will undergo standard testing without DNAse treatment, while the other will have DNAse treatment to differentiate between infectious and non-infectious HCMV DNA. The goal is to reduce unnecessary antiviral drug use and associated side effects by accurately identifying productive infections.

Who should consider this trial

Good fit: Ideal candidates for this study are adults over 18 years old who are undergoing allogeneic hematopoietic stem cell transplantation and are HCMV IgG seropositive prior to the transplant.

Not a fit: Patients under 18 years old or those unable to comply with the study protocol will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to more effective monitoring of HCMV infections, reducing the need for unnecessary antiviral treatments and their side effects.

How similar studies have performed: While this approach is innovative, similar studies have shown promise in improving monitoring strategies for viral infections in transplant patients.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age\>18 years.
* Allogeneic hematopoietic stem cell transplant.
* HCMV IgG seropositivity before transplant
* Written informed consent.
* LTV prophylaxis administration

Exclusion Criteria:

* Age \<18 years.
* Inability to comply with the requirements of the protocol.

Where this trial is running

Brescia, BS and 7 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Cytomegalovirus InfectionsCytomegalovirus ViremiaHematopoietic Stem Cell Transplantation
Last reviewed 2026-06-10 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.