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Migraine Without AuraCOMPETENCT05889455

Effect of Sildenafil in Individuals With Migraine Pretreated With Erenumab

A study testing Sildenafil in people with Migraine Without Aura, run by Danish Headache Center at 1 site in Denmark.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial 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. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Migraine Without Aura
What is being tested?
Sildenafil
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
16 participants
Where
1 siteDenmark
Study dates
20 Apr 2023to 12 Oct 2023
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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.

Who cannot join

  • 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.
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  • 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.

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Danish Headache Center

    Copenhagen, 2600

Other trials in Denmark

About this study

Official title: Effect of Sildenafil in Individuals With Migraine Pretreated With Erenumab: A Randomized Double-Blind Placebo-Controlled Two-Way Crossover Trial

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 intake of sildenafil (a potent vasodilator) can induce 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.

Being tested
Sildenafil, Placebo
Medical subject headings
Migraine without Aura

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SildenafilDrug

    Oral administration of 100mg

  • PlaceboOther

    Placebo

Study groups in NCT05889455
Study groupRoleWhat they receive
SildenafilExperimentalNot described
Receives: Drug: Sildenafil
PlaceboPlacebo comparatorNot described
Receives: Other: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of migraine attack

    Difference in incidence of migraine attack (0 to 12 hours) between sildenafil 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:

    1. 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)
    1. 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).

    Measured: 12 hours

Secondary outcomes (2)
  1. Incidence of headache

    Difference in incidence of headache (0 to 12 hours) between sildenafil and placebo.

    Incidence of headache is defined as headache intensity ≥1 as measured by a numerical rating scale (NRS) from 0 to 10. It is a verbally declared scale from 0 to 10, where 0 is no pain; 10 is the worst pain imaginable.

    Measured: 12 hours

  2. Intensity of headache

    Difference in area under the curve (AUC) for headache intensity scores (0 to 12 hours) between sildenafil and placebo.

    Headache intensity scores are measured by a numerical rating scale (NRS). It is a verbally declared scale from 0 to 10, where 0 is no pain; 10 is the worst pain imaginable.

    Measured: 12 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Jun 2023
  2. Study start20 Apr 2023
  3. Primary completion12 Oct 2023
  4. Study completion12 Oct 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Randomised
Intervention model
Crossover
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
16 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05889455
Sponsor's protocol ID
H-22031717
Acronym
COMPETE
Status last verified
Oct 2023
First submitted
25 May 2023
Last updated
24 Oct 2023
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Raffaelli B, Do TP, Ashina H, Snellman J, Maio-Twofoot T, Ashina M. Induction of cGMP-mediated migraine attacks is independent of CGRP receptor activation. Cephalalgia. 2024 Jun;44(6):3331024241259489. doi: 10.1177/03331024241259489.

    PubMed 38850034

Questions about this trial

What is this clinical trial studying?

A study testing Sildenafil in people with Migraine Without Aura, run by Danish Headache Center at 1 site in Denmark.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Oct 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of migraine attack (time frame: 12 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05889455, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Oct 2023.

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