Evidence map›Paper›PMID 25581815›Full record

Trial reportJournal of clinical pharmacology2015

Population pharmacokinetics of tenofovir and tenofovir-diphosphate in healthy women.

Rebecca N Burns, Craig W Hendrix, Ayyappa Chaturvedula

Open access · hybridAbstract readClinical TrialClinical Trial, Phase IIMulticenter Study
In one paragraph

Trial report in Journal of clinical pharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.1field-weighted citation impact, top 13% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 34 citations in OpenAlex.

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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

3 authors at 3 institutions in 3 countries.

Rebecca N BurnsDepartment of Pharmaceutical Sciences, Mercer University College of Pharmacy, Atlanta, GA, USA.
Craig W Hendrix
Ayyappa Chaturvedula
Mercer (Czechia) · CZMercer University Health Sciences Center · USUniversity of Baltimore · US

Funding

Laboratory Center (LC): Microbicide Trials NetworkUM1AI106707 · NIAID · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI MELLORS, JOHN W, ROHAN, LISA CENCIA · 2014 to 2021
$27.1M
NIAID NIH HHS 1UM1AI106707-01NIAID NIH HHS UM1 AI106707
6 · The paper itself

Abstract

The objective of this analysis was to develop and qualify a population pharmacokinetic model describing plasma tenofovir (TFV) concentrations and tenofovir-diphosphate (TFV-DP) concentrations in peripheral blood mononuclear cell (PBMC) in healthy women volunteers from the MTN-001 clinical trial, an open label 3-way crossover study of oral tenofovir disoproxil fumarate 300 mg tablet, TFV 1% vaginal gel, or both. TFV pharmacokinetics were best described by a 2-compartment, first-order absorption/elimination model with absorption lag time. TFV was linked to PBMC TFV-DP by first-order uptake with first-order elimination. An adherence adjustment was included to account for nonadherence by explicitly modeling a bioavailability parameter on the previous day's dose. The final model included weight as a covariate on central compartment volume (Vc ) with estimates as follows: absorption rate constant (Ka) 9.79 h(-1) , absorption lag time 0.5 hours, Vc 385.71-2.16*(73-WT(kg)), and apparent TFV clearance of 56.7 L/h ((K20 + K24)*Vc ). TFV-DP's half-life was 53.3 hours. All diagnostic plots and bootstrap confidence intervals were acceptable. Model validation was conducted using simulations compared to data from the MTN-001 oral + vaginal period and other clinical trial data. The resulting model closely predicted the disposition of TFV and TFV-DP when compared to healthy participant data from another clinical trial.

Indexed as

AdenineAdministration, OralAdolescentAdultAntiviral AgentsBiological AvailabilityCross-Over StudiesFemaleHalf-LifeHealthy VolunteersHumansLeukocytes, MononuclearMiddle AgedOrganophosphatesTenofovirVaginaAdenineAntiviral AgentsOrganophosphatesTenofovirtenofovir diphosphateVaginal Creams, Foams, and Jelliesadherencepopulation pharmacokineticstenofovirtenofovir-diphosphate

Identifiers

PMID25581815
PMCPMC5008110
OpenAlexW2005248150

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.