Evidence map›Paper›PMID 21968358›Full record

Trial reportAntimicrobial agents and chemotherapy2011

Pharmacokinetics of isoniazid, rifampin, and pyrazinamide in children younger than two years of age with tuberculosis: evidence for implementation of revised World Health Organization recommendations.

S Thee, J A Seddon, P R Donald, H I Seifart, C J Werely, A C Hesseling, B Rosenkranz, S Roll, K Magdorf, H S Schaaf

Registry-linked trialOpen access · greenAbstract readClinical TrialComparative Study
In one paragraph

Trial report in Antimicrobial agents and chemotherapy, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02348177 (A Pharmacokinetics Study Comparing Lopinavir Plasma Exposure When Given as Lopinavir/Ritonavir), which is not on this map. Cited by 62 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed, 4 pooled it
3.3field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT02348177 phase4completednot on this mapstarted 2013, after this paper: background citation

A Pharmacokinetics Study Comparing Lopinavir Plasma Exposure When Given as Lopinavir/Ritonavir (1:1) in the Presence of Rifampicin and Lopinavir/Ritonavir (4:1) Without Rifampicin in HIV and TB Co-infected Children in South Africa.

TypeinterventionalSponsorDrugs for Neglected DiseasesRan2013 to 2016Enrolled96ConditionsAcquired Immunodeficiency Syndrome, TuberculosisArmslopinavir with ritonavir in 1:1 ratio, Lopinavir/ritonavir 4:1
3 · Its place in the literature

Who cites it

62 citing papers in PubMed, 4 syntheses or guidelines pooled it, 110 citations in OpenAlex.

  1. Effectiveness and Pharmacokinetic Exposures of First-Line Drugs Used to Treat Drug-Susceptible Tuberculosis in Children: A Systematic Review and Meta-Analysis.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2023
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  4. Intermittent versus daily therapy for treating tuberculosis in children.The Cochrane database of systematic reviews · 2014
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  12. Effect of HIV infection on plasma exposure to first-line TB drugs and target attainment in children.The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease · 2023
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  13. Article
  14. Clinical standards for the management of adverse effects during treatment for TB.The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease · 2023
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  15. Adequacy of WHO weight-band dosing and fixed-dose combinations for the treatment of TB in children.The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease · 2023
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  20. Observational

2 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 3 countries.

S TheeDepartment of Paediatric Pneumology and Immunology, Charité, Universitätsmedizin Berlin, Germany.
J A Seddon
P R Donald
H I Seifart
C J Werely
A C Hesseling
B Rosenkranz
S Roll
K Magdorf
H S Schaaf
Stellenbosch University · ZACharité - Universitätsmedizin Berlin · DEDesmond Tutu HIV Foundation · ZALondon School of Hygiene & Tropical Medicine · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The World Health Organization (WHO) recently issued revised first-line antituberculosis (anti-TB) drug dosage recommendations for children. No pharmacokinetic studies for these revised dosages are available for children <2 years. The aim of the study was to document the pharmacokinetics of the first-line anti-TB agents in children <2 years of age comparing previous and revised WHO dosages of isoniazid (INH; 5 versus 10 mg/kg/day), rifampin (RMP; 10 versus 15 mg/kg/day), and pyrazinamide (PZA; 25 versus 35 mg/kg/day) and to investigate the effects of clinical covariates, including HIV coinfection, nutritional status, age, gender, and type of tuberculosis (TB), and the effect of NAT2 acetylator status. Serum INH, PZA, and RMP levels were prospectively assessed in 20 children <2 years of age treated for TB following the previous and the revised WHO dosage recommendations. Samples were taken prior to dosing and at 0.5, 1.5, 3, and 5 h following dosing. The maximum drug concentration in serum (C(max)), the time to C(max) (t(max)), and the area under the concentration-time curve (AUC) were calculated. Eleven children had pulmonary and 9 had extrapulmonary TB. Five were HIV infected. The mean C(max) (μg/ml) following the administration of previous/revised dosages were as follows: INH, 3.19/8.11; RMP, 6.36/11.69; PZA, 29.94/47.11. The mean AUC (μg·h/ml) were as follows: INH, 8.09/20.36; RMP, 17.78/36.95; PZA, 118.0/175.2. The mean C(max) and AUC differed significantly between doses. There was no difference in the t(max) values achieved. Children less than 2 years of age achieve target concentrations of first-line anti-TB agents using revised WHO dosage recommendations. Our data provided supportive evidence for the implementation of the revised WHO guidelines for first-line anti-TB therapy in young children.

Indexed as

Antitubercular AgentsArea Under CurveChild, PreschoolCoinfectionFemaleHIV InfectionsHumansIsoniazidMaleNutritional StatusPractice Guidelines as TopicPyrazinamideRifampinTreatment OutcomeTuberculosisTuberculosis, PulmonaryAntitubercular AgentsIsoniazidPyrazinamideRifampin

Identifiers

PMID21968358
PMCPMC3232790
OpenAlexW2147574313

What OpenQuestion holds

Textmetadata
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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.