Skip to content

VaRiant study

Evaluating Serum, Dried Blood Spot and Saliva as Sampling Matrices for Rifampicin Pharmacokinetics in Children and Adolescents with Tuberculosis - VaRiant study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
NL-OMON
Registry ID
NL-OMON61426
Enrollment
10
Registered
2026-02-06
Start date
2026-10-01
Completion date
Unknown
Last updated
2026-08-10

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

Conditions

tuberculosis tuberculose

Interventions

No new medicinal product or intervention is administered. The study only investigates rifampicin concentrations measured in saliva, finger-prick samples and venous blood samples. These methods of obta

Sponsors

Universitair Medisch Centrum Groningen
Lead Sponsor

Eligibility

Age
No minimum to 17 Years

Inclusion criteria

Inclusion criteria: children and adolescents aged 0-18 yearsCurrently receiving oral rifampicin for > 7 days (steady state) for tuberculosis, or > 14 days if undergoing treatment for contagious tuberculosis, at which point participants are considered non-contagious.Written informed consent obtained as follows: For adolescents aged 16-18 years: written informed consent from the adolescentFor children aged 12-16 years: written informed consent from both the child and their parents or guardiansFor children < 12 years written informed consent from both parents or from the legal guardian. 

Exclusion criteria

Exclusion criteria: A potential participant who meets any of the following criteria will be excluded from participation of the studySevere comorbid illnessAcute viral hepatitis Clotting disorders Severe skin diseases on places where dried blood spots and venous samples are collected 

Design outcomes

Primary

MeasureTime frame
We are investigating whether the amount of the medicine rifampicin measured in a standard blood sample taken from a vein is the same as the amount measured using a finger-prick sample or saliva. This study is conducted in children and young people aged 0-18 years with tuberculosis. 

Secondary

MeasureTime frame
We also examine how children, young people, parents and healthcare providers experience the different methods to determine which method is most practical and comfortable. 

Countries

Netherlands

Contacts

Public ContactA.R. Verhage Verhage

Universitair Medisch Centrum Groningen

kinderinfectie@umcg.nl0503612485

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP) · Data processed: Aug 25, 2026