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Completed Phase 2 Interventional Results available

Letermovir Treatment in Pediatric Participants Following Allogeneic Haematopoietic Stem Cell Transplantation (HSCT) (MK-8228-030)

ClinicalTrials.gov ID: NCT03940586

Public ClinicalTrials.gov record NCT03940586. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 2, 2026, 2:58 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 2b Open-label, Single-arm Study to Evaluate Pharmacokinetics, Efficacy, Safety and Tolerability of Letermovir in Pediatric Participants From Birth to Less Than 18 Years of Age at Risk of Developing CMV Infection and/or Disease Following Allogeneic Haematopoietic Stem Cell Transplantation (HSCT)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The primary objective of this study is to evaluate the pharmacokinetics (PK) of letermovir (LET) in pediatric participants. Participants will be enrolled in the following 3 age groups: Age Group 1: From 12 to \<18 years of age (adolescents); Age Group 2: From 2 to \<12 years of age (children); and Age Group 3: From birth to \<2 years of age (neonates, infants and toddlers). All participants will receive open label LET for 14 weeks (\~100 days) post-transplant, with doses based on body weight and age.

Study identification

NCT ID
NCT03940586
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Enrollment
65 participants

Conditions and interventions

Eligibility (public fields only)

Age range
Up to 17 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Aug 7, 2019
Primary completion
Jan 3, 2023
Completion
Aug 24, 2023
Last update posted
Aug 21, 2024

2019 – 2023

United States locations

U.S. sites
11
U.S. states
9
U.S. cities
11
Facility City State ZIP Site status
City of Hope Comprehensive Cancer Center ( Site 0251) Duarte California 91010
Children's Hospital of Orange County ( Site 0241) Orange California 92868
UCSF Benioff Children's Hospital San Francisco ( Site 0245) San Francisco California 94158
University Of Chicago School Of Medicine ( Site 0253) Chicago Illinois 60637
Boston Children's Hospital ( Site 0243) Boston Massachusetts 02115-5737
Memorial Sloan Kettering Cancer Center ( Site 0254) New York New York 10065
Duke University Health System ( Site 0252) Durham North Carolina 27705
Cincinnati Children's Hospital Medical Center ( Site 0244) Cincinnati Ohio 45229
Children's Hospital of Pittsburgh of UPMC ( Site 0258) Pittsburgh Pennsylvania 15224
Children's Medical Center ( Site 0257) Dallas Texas 75235
Seattle Childrens Hospital ( Site 0248) Seattle Washington 98105

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 29 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03940586, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Aug 21, 2024 · Synced Sep 2, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03940586 live on ClinicalTrials.gov.

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