Evidence map›Paper›PMID 41022121›Full record

ArticleJournal of psychopharmacology (Oxford, England)2026

Deaths following illicit ketamine use in England, Wales and Northern Ireland 1999-2024: An update report to inform the reclassification debate.

Jade Pullen, John M Corkery, Rebecca McKnight, Caroline S Copeland

Abstract read
In one paragraph

Article in Journal of psychopharmacology (Oxford, England), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

4 authors.

Jade PullenNational Programme on Substance Use Mortality, London, UK.
John M CorkeryHertfordshire Medical School, University of Hertfordshire, UK.ORCID 0000-0002-3849-817X
Rebecca McKnightManchester Metropolitan University, UK.
Caroline S CopelandNational Programme on Substance Use Mortality, London, UK.ORCID 0000-0002-4462-1402

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundKetamine is increasingly used in the United Kingdom in non-clinical settings for its psychoactive effects, with rising reports of harms including hospital admissions, dependence and deaths. In light of current debates surrounding the reclassification of ketamine under the Misuse of Drugs Act 1971, up-to-date surveillance of associated mortality is warranted.

aimsWe aimed to quantify trends in deaths following illicit ketamine use in England, Wales and Northern Ireland, and to examine changes in demographic and contextual characteristics since the last national analysis which comprised illicit ketamine deaths up to 2019.

methodsCases where illicit ketamine was detected at post-mortem were extracted from the National Programme on Substance Use Mortality and analysed.

resultsThere were 696 deaths identified with illicit ketamine between 1999 and 2024. Annual deaths increased over 10-fold from 2014 (15 deaths) to 2024 (197 projected deaths). Whilst absolute deaths implicating illicit ketamine rose (2014: 6 deaths; 2023: 123 projected deaths), the proportion of deaths where illicit ketamine was implicated in causing death declined (2014: 60.0% of cases; 2024: 42.6% of cases). Concurrently, polydrug use increased (median number of co-administered substances 1999-2004: 3; 2005-2009: 3, 2010-2014: 4, 2015-2019: 6; 2020-2024: 6), and the demographic profile of decedents shifted towards greater deprivation and dependence-related contexts. DISCUSSION AND

conclusionsThere has been an acceleration in deaths following illicit ketamine in recent years, which are increasingly featuring complex patterns of polydrug use and socio-economic vulnerability. Policy responses must extend beyond single-substance legislative controls to encompass harm reduction, treatment integration, and social support strategies.

Indexed as

Illicit DrugsKetamineSubstance-Related DisordersAdolescentAdultEnglandFemaleHumansMaleMiddle AgedNorthern IrelandWalesYoung AdultIllicit DrugsKetaminedrug policydrug-related deathsketaminepolydrug usepublic health policy

Identifiers

PMID41022121
PMCPMC13222383

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.