Evidence map›Paper›PMID 29168205›Full record

Trial reportBritish journal of clinical pharmacology2018

A human microdose study of the antimalarial drug GSK3191607 in healthy volunteers.

Malek Okour, Geo Derimanov, Rodger Barnett, Esther Fernandez, Santiago Ferrer, Stephanie Gresham, Mohammad Hossain, Francisco-Javier Gamo, Gavin Koh, Adrian Pereira and 5 more

Abstract readClinical Trial
In one paragraph

Trial report in British journal of clinical pharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
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

6 citing papers in PubMed.

  1. Trial
  2. Review
  3. Review
  4. Article
  5. Review
  6. Review
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

15 authors.

Malek OkourClinical Pharmacology Modeling and Simulation (CPMS), GlaxoSmithKline, King of Prussia, PA, USA.ORCID 0000-0002-4739-4989
Geo DerimanovDiscovery Medicine, Diseases of the Developing World, GlaxoSmithKline, Collegeville, PA, USA.
Rodger BarnettDrug Product Design and Development (DPDD), GlaxoSmithKline, Ware, Herts, UK.
Esther FernandezMalaria DPU, Tres Cantos Medicines Development Campus, GlaxoSmithKline, Tres Cantos, Spain.
Santiago FerrerMalaria DPU, Tres Cantos Medicines Development Campus, GlaxoSmithKline, Tres Cantos, Spain.
Stephanie GreshamMechanistic Safety and Disposition, GlaxoSmithKline, Ware, UK.
Mohammad HossainClinical Pharmacology Modeling and Simulation (CPMS), GlaxoSmithKline, King of Prussia, PA, USA.
Francisco-Javier GamoMalaria DPU, Tres Cantos Medicines Development Campus, GlaxoSmithKline, Tres Cantos, Spain.
Gavin KohDiseases of the Developing World, GlaxoSmithKline, Stockley Park, Uxbridge, UK.
Adrian PereiraBioanalysis, Immunogenicity and Biomarkers (BIB), GlaxoSmithKline, Ware, UK.
Katie RolfeStatistics, Programming and Data Strategy (SPDS), GlaxoSmithKline, Stockley Park, Uxbridge, UK.
Deborah WongClinical Pharmacology Science & Study Operations (CPSSO), GlaxoSmithKline, Stevenage, Hertfordshire, UK.
Graeme YoungBioanalysis, Immunogenicity and Biomarkers (BIB), GlaxoSmithKline, Ware, UK.
Harshad RamiDiseases of the Developing World, GlaxoSmithKline, Stockley Park, Uxbridge, UK.
John HaseldenMalaria DPU, Tres Cantos Medicines Development Campus, GlaxoSmithKline, Tres Cantos, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsGSK3191607, a novel inhibitor of the Plasmodium falciparum ATP4 (PfATP4) pathway, is being considered for development in humans. However, a key problem encountered during the preclinical evaluation of the compound was its inconsistent pharmacokinetic (PK) profile across preclinical species (mouse, rat and dog), which prevented reliable prediction of PK parameters in humans and precluded a well-founded assessment of the potential for clinical development of the compound. Therefore, an open-label microdose (100 μg, six subjects) first time in humans study was conducted to assess the human PK of GSK3191607 following intravenous administration of [14C]-GSK3191607.

methodsA human microdose study was conducted to investigate the clinical PK of GSK3191607 and enable a Go/No Go decision on further progression of the compound. The PK disposition parameters estimated from the microdose study, combined with preclinical in vitro and in vivo pharmacodynamic parameters, were all used to estimate the potential efficacy of various oral dosing regimens in humans.

resultsThe PK profile, based on the microdose data, demonstrated a half-life (~17 h) similar to other antimalarial compounds currently in clinical development. However, combining the microdose data with the pharmacodynamic data provided results that do not support further clinical development of the compound for a single dose cure.

conclusionsThe information generated by this study provides a basis for predicting the expected oral PK profiles of GSK3191607 in man and supports decisions on the future clinical development of the compound.

Indexed as

Administration, IntravenousAdultAntimalarialsDose-Response Relationship, DrugHalf-LifeHumansMaleMiddle AgedPlasmodium falciparumSpecies SpecificityAntimalarialsclinical researchdrug developmentmalariamicrodosepharmacokineticphase 0

Identifiers

PMID29168205
PMCPMC5809343

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Registered trials

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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.