Evidence map›Paper›PMID 25449994›Full record

Trial reportJournal of clinical pharmacology2015

Pharmacokinetics of dolutegravir when administered with mineral supplements in healthy adult subjects.

Ivy Song, Julie Borland, Niki Arya, Brian Wynne, Stephen Piscitelli

Abstract readRandomized Controlled Trial
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 40 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 2 pooled it
–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

40 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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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

5 authors.

Ivy SongGlaxoSmithKline, Research Triangle Park, NC, USA.
Julie Borland
Niki Arya
Brian Wynne
Stephen Piscitelli

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

All commercially available integrase inhibitors are 2-metal binders and may be affected by co-administration with metal cations. The purpose of this study was to evaluate the effect of calcium and iron supplements on dolutegravir pharmacokinetics and strategies (dose separation and food) to attenuate the effects if significant reductions in dolutegravir exposure were observed. This was an open-label, crossover study that randomized 24 healthy subjects into 1 of 2 cohorts to receive 4 treatments: (1) dolutegravir alone, fasting; (2) dolutegravir with calcium carbonate or ferrous fumarate, fasting; (3) dolutegravir with calcium carbonate or ferrous fumarate with a moderate-fat meal; (4) dolutegravir administered 2 hours before calcium carbonate or ferrous fumarate, fasting. Plasma dolutegravir AUC(0-∞), Cmax , and C24 were reduced by 39%, 37%, and 39%, respectively, when co-administered with calcium carbonate while fasting and were reduced by 54%, 57%, and 56%, respectively, when co-administered with ferrous fumarate while fasting. Dolutegravir administration 2 hours before calcium or iron supplement administration (fasted), as well as administration with a meal, counteracted the effect. Dolutegravir and calcium or iron supplements can be co-administered if taken with a meal. Under fasted conditions, dolutegravir should be administered 2 hours before or 6 hours after calcium or iron supplements.

Indexed as

Dietary SupplementsAdministration, OralAdultArea Under CurveCalcium CarbonateCross-Over StudiesDolutegravirDrug AntagonismFastingFemaleFerrous CompoundsFood-Drug InteractionsHalf-LifeHeterocyclic Compounds, 3-RingHIV Integrase InhibitorsHumansCalcium CarbonateDolutegravirFerrous Compoundsferrous fumarateHeterocyclic Compounds, 3-RingHIV Integrase InhibitorsOxazinesPiperazinesPyridonescalcium carbonatedolutegravirdrug interactionferrous fumaratepharmacokinetics

Identifiers

PMID25449994
PMCPMC4407950

What OpenQuestion holds

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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.