Evidence map›Paper›PMID 38890563›Full record

Trial reportThe journal of headache and pain2024

Hypersensitivity to BK

Haidar M Al-Khazali, Rune H Christensen, David W Dodick, Basit Ali Chaudhry, Anna G Melchior, Rami Burstein, Håkan Ashina

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The journal of headache and pain, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05378074 (Hypersensitivity to Opening of BKCa Channels in Post-Traumatic Headache), which is not on this map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
–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.

NCT05378074 naunknown statusnot on this map

Hypersensitivity to Opening of BKCa Channels in Post-Traumatic Headache: A Randomized Clinical Trial

TypeinterventionalSponsorDanish Headache CenterRan2022 to 2023Enrolled21ConditionsPost-Traumatic HeadacheArmsMaxipost, Placebo
3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. 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

7 authors.

Haidar M Al-KhazaliHarvard Medical School, Boston, MA, USA.
Rune H ChristensenDepartment of Neurology, Danish Headache Center, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.
David W DodickDepartment of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
Basit Ali ChaudhryDepartment of Neurology, Danish Headache Center, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.
Anna G MelchiorDepartment of Neurology, Danish Headache Center, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.
Rami BursteinDepartment of Neurology, Mayo Clinic, Scottsdale, AZ, USA.
Håkan AshinaDepartment of Neurology, Danish Headache Center, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark. haakan.ashina@regionh.dk.

Funding

Lundbeck Foundation R403-2022-1352Rigshospitalet E-23831-03
6 · The paper itself

Abstract

backgroundLarge conductance  calcium-activated potassium (BK

methodsThis is a randomized double-blind, placebo-controlled, two-way crossover study from September 2023 to December 2023. Eligible participants were adults with PPTH after mild traumatic brain injury who reported having no personal history of migraine. The randomized participants received a single dose of either MaxiPost (0.05 mg/min) or placebo (isotonic saline) that was infused intravenously over 20 minutes. The two experiment sessions were scheduled at least one week apart to avoid potential carryover effects. The primary endpoint was the induction of migraine-like headache after MaxiPost as compared to placebo within 12 hours of drug administration. The secondary endpoint was the area under the curve (AUC) values for headache intensity scores between MaxiPost and placebo over the same 12-hour observation period.

resultsTwenty-one adult participants (comprising 14 females and 7 males) with PPTH were enrolled and completed both experiment sessions. The proportion of participants who developed migraine-like headache was 11 (52%) of 21 participants after MaxiPost infusion, in contrast to four (19%) participants following placebo (P = .02). Furthermore, the median headache intensity scores, represented by AUC values, were higher following MaxiPost than after placebo (P < .001).

conclusionsOur results indicate that BK CLINICALTRIALS: GOV IDENTIFIER: NCT05378074.

Indexed as

Cross-Over StudiesPost-Traumatic HeadacheAdultBrain ConcussionDouble-Blind MethodFemaleHumansLarge-Conductance Calcium-Activated Potassium Channel alpha SubunitsLarge-Conductance Calcium-Activated Potassium ChannelsMaleMiddle AgedMigraine DisordersYoung AdultLarge-Conductance Calcium-Activated Potassium Channel alpha SubunitsLarge-Conductance Calcium-Activated Potassium ChannelsBKCa channelsDrug targetsHead painHead traumaPathogenesis

Identifiers

PMID38890563
PMCPMC11186171

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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.