Evidence map›Paper›PMID 30290701›Full record

ArticleCephalalgia : an international journal of headache2019

Increased use of illicit drugs in a Dutch cluster headache population.

Ilse F de Coo, Willemijn C Naber, Leopoldine A Wilbrink, Joost Haan, Michel D Ferrari, Rolf Fronczek

Registry-linked trialOpen access · hybridAbstract read
In one paragraph

Article in Cephalalgia : an international journal of headache, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05477459 (Efficacy and Safety of Minidosing Lysergic Acid Diethylamide), which is not on this map. Cited by 17 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 3 pooled it
1.8field-weighted citation impact, top 15% 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.

NCT05477459 phase2recruitingnot on this mapstarted 2025, after this paper: background citation

Efficacy and Safety of Minidosing Lysergic Acid Diethylamide (LSD) for Chronic Cluster Headache: a Randomized Placebo-controlled Study

TypeinterventionalSponsorRadboud University Medical CenterRan2025 to 2027Enrolled65ConditionsChronic Cluster HeadacheArmsLSD tartrate, Placebo
3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 3 syntheses or guidelines pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Review
  5. Risk and reward seeking behaviour in episodic cluster headache - a psychometric and behavioural study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Article
  6. Hallmarks of primary headache: part 3 - cluster headache.The journal of headache and pain · 2025
    Review
  7. Article
  8. Psychedelics and Headache Disorders: an Update.Current neurology and neuroscience reports · 2025
    Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
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

6 authors at 1 institution in 1 country.

Ilse F de Coo1 Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands.ORCID 0000-0001-8169-4451
Willemijn C Naber1 Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands.
Leopoldine A Wilbrink1 Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands.
Joost Haan1 Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands.
Michel D Ferrari1 Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands.
Rolf Fronczek1 Department of Neurology, Leiden University Medical Center, Leiden, the Netherlands.
Leiden University Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMany patients with cluster headache report use of illicit drugs. We systematically assessed the use of illicit drugs and their effects in a well-defined Dutch cluster headache population.

methodsIn this cross-sectional explorative study, 756 people with cluster headache received a questionnaire on lifetime use and perceived effects of illicit drugs. Results were compared with age and sex-matched official data from the Dutch general population.

resultsCompared to the data from the general population, there were more illicit drug users in the cluster headache group (31.7% vs. 23.8%; p < 0.01). Reduction in attack frequency was reported by 56% (n = 22) of psilocybin mushroom, 60% (n = 3) of lysergic acid diethylamide and 50% (n = 2) of heroin users, and a decreased attack duration was reported by 46% (n = 18) of PSI, 50% (n = 2) of heroin and 36% (n = 8) of amphetamine users.

conclusionIn the Netherlands, people with cluster headache use illicit drugs more often than the general population. The question remains whether this is due to an actual alleviatory effect, placebo response, conviction, or common pathophysiological background between cluster headache and addictive behaviours such as drug use.

Indexed as

Cluster HeadacheIllicit DrugsAdultCross-Sectional StudiesFemaleHumansMaleMiddle AgedNetherlandsSurveys and QuestionnairesIllicit DrugscannabisCluster headacheGHBheroinpsilocybin mushroom

Identifiers

PMID30290701
PMCPMC6484703
OpenAlexW2895315021

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

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.