Evidence map›Paper›PMID 37068898›Full record

ArticleBMJ open2023

Valsartan, Losartan and Irbesartan use in the USA, UK, Canada and Denmark after the nitrosamine recalls: a descriptive cohort study.

Efe Eworuke, Mayura Shinde, Laura Hou, Michael J Paterson, Peter Bjødstrup Jensen, Judith C Maro, Ashish Rai, Daniel Scarnecchia, Dinci Pennap, Daniel Woronow and 6 more

Abstract read
In one paragraph

Article in BMJ open, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

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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

16 authors.

Efe EworukeCenter for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA efeeworuke@gmail.com.ORCID 0000-0001-8971-9748
Mayura ShindeDepartment of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, USA.
Laura HouDepartment of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, USA.
Michael J PatersonCanadian Network for Observational Drug Effect Studies (CNODES), Montréal, Quebec, Canada.
Peter Bjødstrup JensenUniversity of Southern Denmark, Odense, Denmark.
Judith C MaroDepartment of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, USA.
Ashish RaiDepartment of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, USA.
Daniel ScarnecchiaDepartment of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, USA.ORCID 0000-0001-9486-4974
Dinci PennapCenter for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA.
Daniel WoronowCenter for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA.
Rebecca E GhoshClinical Practice Research Datalink, Medicines and Healthcare Products Regulatory, London, UK.
Stephen WelburnClinical Practice Research Datalink, Medicines and Healthcare Products Regulatory, London, UK.ORCID 0000-0001-5620-0536
Anton PottegardHospital Pharmacy, Odense Universitetshospital, Odense, Denmark.
Robert W PlattDepartment of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, USA.
Hana LeeCenter for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA.
Marie C BradleyCenter for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA.ORCID 0000-0002-6266-4414

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo examine valsartan, losartan and irbesartan usage and switching patterns in the USA, UK, Canada and Denmark before and after July 2018, when the first Angiotensin-Receptor-Blocker (ARB) (valsartan) was recalled.

designRetrospective cohort study.

settingUSA, Canadian administrative healthcare data, Danish National Prescription Registry and UK primary care electronic health records.

participantsPatients aged 18 years and older between January 2014 and December 2020.

interventionValsartan, losartan and irbesartan. MAIN OUTCOME: Monthly percentages of individual ARB episodes, new users and switches to another ARB, ACE inhibitors (ACEI) or calcium channel blockers containing products.

resultsWe identified 10.8, 3.2, 1.8 and 1.2 million ARB users in the USA, UK, Canada and Denmark, respectively. Overall proportions of valsartan, losartan and irbesartan use were 18.4%, 67.9% and 5.2% in the USA; 3.1%, 48.3% and 10.2% in the UK, 16.3%, 11.4% and 18.3% in Canada, 1%, 93.5% and 0.6% in Denmark. In July 2018, we observed an immediate steep decline in the proportion of valsartan use in the USA and Canada. A similar trend was observed in Denmark; however, the decline was only minimal. We observed no change in trends of ARB use in the UK. Accompanying the valsartan decline was an increase in switching to other ARBs in the USA, Canada and Denmark. There was a small increase in switching to ACEI relative to the valsartan-to-other-ARBs switch. We also observed increased switching from other affected ARBs, losartan and irbesartan, to other ARBs throughout 2019, in the USA and Canada, although the usage trends in the USA remained unchanged.

conclusionThe first recall notice for valsartan resulted in substantial decline in usage due to increased switching to other ARBs. Subsequent notices for losartan and irbesartan were also associated with increased switching around the time of the recall, however, overall usage trends remained unchanged.

Indexed as

HypertensionLosartanAngiotensin-Converting Enzyme InhibitorsAngiotensin Receptor AntagonistsBiphenyl CompoundsCanadaCohort StudiesDenmarkHumansIrbesartanRetrospective StudiesTetrazolesUnited KingdomValsartanAngiotensin-Converting Enzyme InhibitorsAngiotensin Receptor AntagonistsBiphenyl CompoundsIrbesartanLosartanTetrazolesValsartanCardiac EpidemiologyEpidemiologyHeart failureHypertension

Identifiers

PMID37068898
PMCPMC10111915

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.