NCT05889442

Brief Summary

An outstanding scientific question, that merits further investigation, is whether dilation of intracranial arteries is implicated in the pathogenesis of cephalic pain in migraine. Here, we hypothesize that experimentally-induced dilation of intracranial arteries using intravenous infusion of levcromakalim (a potent vasodilator) induces cephalic pain with migraine-like features in people with migraine, who prior to the infusion are administered erenumab (anti-calcitonin gene-related peptide (CGRP) receptor monoclonal antibody).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
16

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2023

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 9, 2023

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

May 25, 2023

Completed
11 days until next milestone

First Posted

Study publicly available on registry

June 5, 2023

Completed
7 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 12, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 12, 2023

Completed
Last Updated

October 24, 2023

Status Verified

October 1, 2023

Enrollment Period

3 months

First QC Date

May 25, 2023

Last Update Submit

October 22, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Incidence of migraine attack

    Difference in incidence of migraine attack (0 to 12 hours) between levcromakalim and placebo. A migraine attack is defined as an attack fulfilling either (i) or (ii): (i)\* Headache fulfilling criteria C and D for migraine without aura according to the International Headache Society criteria: C. Headache has at least two of the following characteristics: unilateral location pulsating quality moderate or severe pain intensity (moderate to severe pain intensity is considered ≥4 on verbal rating scale) aggravation by cough (in-hospital phase) or causing avoidance of routine physical activity (out-hospital phase) D. During headache at least one of the following: nausea and/or vomiting photophobia and phonophobia (ii) Headache described as mimicking the patient's usual migraine attack and treated with acute migraine medication (rescue medication).

    12 hours

Secondary Outcomes (3)

  • Incidence of headache

    12 hours

  • Intensity of headache

    12 hours

  • Diameter of superficial temporal artery

    1 hour

Study Arms (2)

Levcromakalim

EXPERIMENTAL
Drug: Levcromakalim

Placebo

PLACEBO COMPARATOR
Other: Placebo

Interventions

Continuous intravenous infusion of 20 mL levcromakalim (0.05 mg/min (50 μg/ mL) over 20 minutes

Levcromakalim
PlaceboOTHER

Continuous intravenous infusion of 20 mL isotonic saline over 20 minutes

Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participant has provided informed consent prior to initiation of any study-specific activities/procedures.
  • Age ≥18 years upon entry into screening.
  • History of migraine without aura for ≥12 months with a frequency of 1-5 migraine attacks per month before screening according to the International Headache Society (IHS) Classification ICHD-3 (Headache Classification Committee of the International Headache Society, 2018), based on medical records and/or patient self-report.

You may not qualify if:

  • History of any primary headache disorder other than migraine without aura, or tension-type headache with a frequency of ≥5 headache days per month before screening according to the International Headache Society (IHS) Classification ICHD-3 (Headache Classification Committee of the International Headache Society, 2018), based on medical records and/or patient self-report.
  • History of any secondary headache disorder before screening according to the International Headache Society (IHS) Classification ICHD-3 (Headache Classification Committee of the International Headache Society, 2018) based on medical records and/or patient self-report.
  • Intake of prophylactic migraine medication within ≤30 days or 5 plasma half-lives (whichever is longer) prior to screening.
  • Prior intake of therapies targeting the CGRP signaling pathway, including anti-CGRP ligand monoclonal antibodies, anti-CGRP receptor monoclonal antibodies, and small molecule CGRP receptor antagonists.
  • The participant is at risk of self-harm or harm to others as evidenced by past suicidal behavior.
  • History or evidence of any other clinically significant disorder, condition, or disease (with the exception of those outlined above) that, in the opinion of the investigator will pose a risk to participant safety or interfere with the study evaluation, procedures or completion.
  • Female participants of childbearing potential with a positive pregnancy test assessed at screening or day 1 by a urine pregnancy test.
  • Female participants who are pregnant or breastfeeding or plan to become pregnant or breastfeed during participation in the study.
  • Evidence of current pregnancy or breastfeeding per participant self-report or medical records.
  • Participants likely to not be available to complete all protocol-required study visits or procedures, and/or to comply with all required study procedures to the best of the participants' and investigator's knowledge.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Danish Headache Center

Copenhagen, 2600, Denmark

Location

Related Publications (1)

  • Raffaelli B, Do TP, Chaudhry BA, Amin FM, Ashina H, Snellman J, Maio-Twofoot T, Ashina M. Activation of ATP-sensitive potassium channels triggers migraine attacks independent of calcitonin gene-related peptide receptors: a randomized placebo-controlled trial. Cephalalgia. 2024 Jan;44(1):3331024231222916. doi: 10.1177/03331024231222916.

MeSH Terms

Conditions

Migraine without Aura

Interventions

Cromakalim

Condition Hierarchy (Ancestors)

Migraine DisordersHeadache Disorders, PrimaryHeadache DisordersBrain DiseasesCentral Nervous System DiseasesNervous System Diseases

Intervention Hierarchy (Ancestors)

PyrrolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsBenzopyransPyransHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
OTHER
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

May 25, 2023

First Posted

June 5, 2023

Study Start

March 9, 2023

Primary Completion

June 12, 2023

Study Completion

June 12, 2023

Last Updated

October 24, 2023

Record last verified: 2023-10

Locations