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Letermovir Prophylaxis for Cytomegalovirus (CMV) in Patients With Graft-versus-host Disease

Letermovir Prophylaxis for CMV in Patients With Graft-versus-host Disease After Allogeneic Hematopoietic Cell Transplantation: a Proof of Concept Multicenter Study

Status
UNKNOWN
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05969743
Enrollment
42
Registered
2023-08-01
Start date
2023-10-01
Completion date
2025-07-31
Last updated
2023-08-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

CMV, Graft-versus-host-disease

Brief summary

Explore the tolerability and efficacy of letermovir in the prevention of CMV reactivation in patients with acute and chronic graft-versus-host disease (GVHD) beyond day 100.

Detailed description

42 patients meeting the inclusion criteria will receive letermovir 480 mg per day. Patients receiving concomitant cyclosporine will receive 240 mg of letermovir. Letermovir will be given during 14 weeks or until prednisone dose is reduced below 0.2 mg / kg / day, whichever comes earlier. All the patients will continue herpesvirus prophylaxis with acyclovir or valacyclovir. Patients will be evaluated biweekly until letermovir discontinuation. A PCR CMV test will be performed biweekly. Patients in whom clinically significant CMV infection (defined as CMV disease or CMV viremia leading to preemptive treatment) develop, will discontinue the trial regimen and begin anti-CMV therapy according to local practice. The threshold for preemptive treatment for CMV viremia will be \>1000 copies/ ml.

Interventions

DRUGLetermovir

Patients meeting the inclusion criteria will receive letermovir 480 mg per day. Patients receiving concomitant cyclosporine will receive 240 mg of letermovir. Letermovir will be given during 14 weeks or until prednisone dose is reduced below 0.2 mg / kg / day, whichever comes earlier.

Sponsors

Rabin Medical Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 120 Years
Healthy volunteers
No

Inclusion criteria

* Adult patients * After allogeneic transplantation * Seropositive for CMV * Who already received letermovir prophylaxis until day 100 without CMV reactivation * Beyond day 100 after transplantation at enrollment * With acute or chronic GVHD * Daily prednisone dose ≥ 0.5 mg/kg (or equivalent dose of another glucocorticoid) at enrollment. * Negative polymerase chain reaction (PCR) for CMV at enrollment * Provided informed consent

Exclusion criteria

* Seronegative for CMV * Positive PCR for CMV at enrollment * Patient has previously had CMV reactivation under letermovir.

Design outcomes

Primary

MeasureTime frameDescription
Incidence of CMV infection14 weeksThe proportion of patients with clinically significant CMV infection through week 14 after enrollment or until prednisone dose is reduced below 0.2 mg / kg / day, whichever comes earlier.

Contacts

Primary ContactMoshe Yeshurun, MD
moshe.yeshurun@gmail.com0526015543

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026