Understanding how intravenous acyclovir works in children with cancer

Pharmacokinetics of Intravenous Acyclovir in Children Undergoing Hematopoietic Stem Cell Transplantation or High-intensity Antineoplastic Chemotherapy

Observational University of Pisa · NCT05198570

This study is trying to understand how the drug acyclovir works in children with cancer to see if it can help protect them from serious herpesvirus infections.

Quick facts

Study typeObservational
Enrollment200 (estimated)
Ages6 Months to 18 Years
SexAll
SponsorUniversity of Pisa Academic / other
Drugs / interventionschemotherapy
Locations1 site (Trieste, TS)
Trial IDNCT05198570 on ClinicalTrials.gov

What this trial studies

This observational study focuses on the pharmacokinetics of intravenous acyclovir in pediatric patients with hematological malignancies or those undergoing hematopoietic stem cell transplantation. It aims to analyze how the drug behaves in the body, particularly in children, who may experience significant variability in drug metabolism. By monitoring drug levels and optimizing treatment protocols, the study seeks to improve outcomes for children at high risk of herpesvirus infections. The research is crucial for tailoring acyclovir therapy to enhance its effectiveness and safety in vulnerable pediatric populations.

Who should consider this trial

Good fit: Ideal candidates include children with hematological malignancies or those receiving HSCT who require acyclovir for herpesvirus infection prophylaxis or treatment.

Not a fit: Patients who do not require acyclovir treatment or those without hematological malignancies or HSCT are unlikely to benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to more effective and safer acyclovir dosing strategies for children with cancer, reducing the risk of herpesvirus infections.

How similar studies have performed: While the pharmacokinetics of acyclovir has been studied in adults, this specific focus on pediatric patients with malignancies is relatively novel and underexplored.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with Hematological malignancies
* HSCT recipients who require ACV prophylaxis or treatment for HSV-VZV infection or
* Children undergoing high-intensity antineoplastic chemotherapy who need ACV treatment.
* Intravenous or oral ACV dosing
* Active/available a therapeutic drug monitoring (TDM) protocol for ACV
* Informed consent signed by patient's parents

Exclusion Criteria:

* lack of signed informed consent
* lack of TDM for ACV
* unavailable patient's demographic characteristics

Where this trial is running

Trieste, TS

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 Herpesviridae InfectionsHerpes Simplex 1Varicella Zoster Virus InfectionTransplantation InfectionOncologyHematopoietic stem cell transplantationHerpes virus infectionsAciclovir
Last reviewed 2026-06-13 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.