Evidence map›Paper›PMID 28705922›Full record

ArticleEvidence-based medicine2017

The Cochrane Collaboration withdraws a review on methylphenidate for adults with attention deficit hyperactivity disorder.

Kim Boesen, Luis Carlos Saiz, Juan Erviti, Ole Jakob Storebø, Christian Gluud, Peter C Gøtzsche, Karsten Juhl Jørgensen

Open access · hybridAbstract read
In one paragraph

Article in Evidence-based medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 3 pooled it
1.8field-weighted citation impact, top 16% 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.

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

11 citing papers in PubMed, 3 syntheses or guidelines pooled it, 21 citations in OpenAlex.

  1. Pooled it
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  10. Six-year outcome in subjects diagnosed with attention-deficit/hyperactivity disorder as adults.European archives of psychiatry and clinical neuroscience · 2018
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  11. 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

7 authors at 3 institutions in 2 countries.

Kim BoesenNordic Cochrane Centre, Rigshospitalet, Copenhagen, Denmark.
Luis Carlos SaizDrug Prescribing Unit, Navarre Regional Health Service, Pamplona, Spain.ORCID http://orcid.org/0000-0002-9143-5709
Juan ErvitiDrug Prescribing Unit, Navarre Regional Health Service, Pamplona, Spain.
Ole Jakob StorebøPsychiatric Research Unit, Region Zealand Psychiatry, Slagelse, Denmark.
Christian GluudCopenhagen Trial Unit, Centre for Clinical Intervention Research, Rigshospitalet, Copenhagen, Denmark.
Peter C GøtzscheNordic Cochrane Centre, Rigshospitalet, Copenhagen, Denmark.
Karsten Juhl JørgensenNordic Cochrane Centre, Rigshospitalet, Copenhagen, Denmark.
Rigshospitalet · DKNavarre Institute of Health Research · ESRegion Zealand · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A Cochrane systematic review on immediate-release methylphenidate for adults with attention deficit hyperactivity disorder (ADHD) was withdrawn from the Cochrane Library on 26 May 2016 after substantial criticism of its methods and flawed conclusions. Retraction of scientific papers on this basis is unusual but can be necessary. We provide a summary of the criticism that led to the withdrawal. We detail the methodological flaws of the withdrawn Cochrane systematic review and general issues of bias and shortcomings of the included ADHD trials: cross-over designs compared with parallel-group designs, exclusion of participants with psychiatric comorbidity, absence of 'functional outcomes' and use of clinical outcomes with limited relevance, short trial duration and small trial populations, broken blinding caused by easily recognisable side effects, combining outcome assessments by trial investigators and participants, outcome reporting bias, poor evaluation of cardiovascular and psychiatric harms and conflicts of interest of trialists and systematic reviewers. The withdrawal of the Cochrane systematic review signals recognition of previous unreliable clinical ADHD research. We conclude that clinical trials of immediate-release methylphenidate in adults with ADHD are of very low quality. We urgently need well-conducted long-term trials free of bias to assess the benefits and harms of central stimulant treatment in adult ADHD.

Indexed as

Retraction of Publication as TopicSystematic Reviews as TopicAdultAttention Deficit Disorder with HyperactivityCentral Nervous System StimulantsClinical Trials as TopicEvidence-Based MedicineHumansMethylphenidateResearch DesignCentral Nervous System StimulantsMethylphenidateAdult PsychiatryAdverse EventsClinical TrialsImpulse Control Disorders

Identifiers

PMID28705922
PMCPMC5537554
OpenAlexW2734768952

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.