Evidence map›Paper›PMID 21938606›Full record

Trial reportSchmerz (Berlin, Germany)2011

[Botulinum toxin type A in the prophylactic treatment of chronic migraine].

H Göbel, A Heinze

Abstract readMulticenter StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Schmerz (Berlin, Germany), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 21% 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

2 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Guideline
  2. 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

2 authors at 1 institution in 1 country.

H GöbelMigräne- und Kopfschmerzzentrum, Neurologisch-verhaltensmedizinische Schmerzklinik Kiel, Heikendorfer Weg 9-27, 24149, Kiel, Deutschland. hg@schmerzklinik.de
A Heinze
Schmerzklinik Kiel · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Since the second edition of the International classification of headache disorders (ICDH-II 2004), chronic migraine has been listed amongst migraine complications. Compared to episodic migraine the prevalence of chronic migraine is low, its impact, however, significant. Until recently no prophylactic drug had been approved for chronic migraine prophylaxis. After case reports had stated an effect of botulinum toxin type A on migraine, several randomized placebo-controlled studies were conducted in episodic headache; the results, however, were disappointing. Only when botulinum toxin type A was used in chronic migraine in the PREEMPT (phase 3 research evaluating migraine prophylaxis therapy) trials, its superiority compared to placebo was established. Thus, for the first time a prophylactic drug against chronic migraine is available which is both effective and well tolerated. Botox® has been licensed in England for the prophylaxis of headaches in adults with chronic migraine in 2010. Approval for its use in Germany has been applied for.

Indexed as

AdultBotulinum Toxins, Type ADose-Response Relationship, DrugDouble-Blind MethodFemaleHeadache DisordersHumansInjections, IntramuscularMaleMiddle AgedMigraine DisordersBotulinum Toxins, Type A

Identifiers

PMID21938606
OpenAlexW2150405584

What OpenQuestion holds

Textmetadata
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.