Neonatal Phase 1 Valacyclovir Study

Completed · Phase 1

Conditions studied: Herpes Simplex

In brief

A Phase 1 study that will determine the valacyclovir dose that results in a systemic acyclovir exposure comparable to 10 mg/kg of parenterally administered acyclovir, which is an AUC0-12 of 24,000 ngxhr/mL to 48,000 ngxhr/mL. Neonates at risk of acquiring neonatal HSV will be enrolled in one of 2 cohorts. Cohort 1 will be comprised of eight subjects who will receive an initial dose of 10ml/kg of oral valacyclovir. Samples for PK assessments will be obtained to assess the exposure concentration. If the safety profile and the drug exposure concentrations in Cohort 1 are acceptable, eight new subjects will be enrolled in Cohort 2. The dose that these subjects will receive will be predicated upon the pharmacokinetic data from Cohort 1.

Key facts

Study ID
NCT05468619
Run by
National Institute of Allergy and Infectious Diseases (NIAID)
People needed
17
Starts
2023-08-07
Expected to finish
2025-07-15
Last updated by the study team
2026-07-23

Who can join

Age: 0 and older, up to 0. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

You may not qualify if…

Where it is running

Full record on ClinicalTrials.gov

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