Healthy Volunteers, Headache, Migraine, Hemodynamics, VIP, SPECT, UltrasoundNCT00255320
Experimental Headache Induced by Vasoactive Intestinal Polypeptide
A study testing VIP in people with Healthy Volunteers, Headache, Migraine, Hemodynamics, VIP, SPECT, Ultrasound, run by Danish Headache Center at 1 site in Denmark.
Trial summary
We hypothesized that infusion of VIP may induce headache in healthy subjects and that VIP induced headache may be associated with dilatation of intra- and extracerebral blood vessels. Read more about this study
- Who is it for?
- Ages 18 to 60 yearsHealthy volunteers can take part
- Conditions the study is for
- Healthy Volunteers, Headache, Migraine, Hemodynamics, VIP, SPECT, Ultrasound
- What is being tested?
- VIP
- How many people
- 12 participants
- Where
- 1 siteDenmark
- Study dates
- Dec 2003to Jun 2004
- 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 to 60 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- healthy volunteers
Who cannot join
- migraine cerebrovascular disorders pregnancy
Trial locations and contacts
1 site in 1 country.
Denmark1 site
Danish Headache Center , KAS Glostrup
Glostrup, Copenhagen, 2600
About this study
We hypothesized that infusion of VIP may induce headache in healthy subjects and that VIP induced headache may be associated with dilatation of intra- and extracerebral blood vessels. To test this hypothesis, we performed a double blind placebo controlled crossover study in normal human volunteers and studied the effect on headache and cerebral as well as hemodynamic parameters.
Read the detailed description
We hypothesized that infusion of VIP may induce headache in healthy subjects and that VIP induced headache may be associated with dilatation of intra- and extracerebral blood vessels. To test this hypothesis, we performed a double blind placebo controlled crossover study in normal human volunteers and studied the effect on headache and cerebral as well as hemodynamic parameters. In a double-blind, placebo-controlled, crossover design, the subjects were randomly allocated to receive 8 pmol/kg/min VIP or placebo (isotonic saline) over 25 min. Headache intensity, Mean velocity of blood flow in the middle cerebral artery (VmeanMCA), superfical temporal artery diameter, PetCO2, adverse events and vital signs were recorded at T-10, T0 and then every 10 min until 120 min after start of infusion. Single photon emission computerized tomography (SPECT) was performed at T-0, T20 and T60.
- Being tested
- VIP
- Keywords
- healthy volunteers, headache, migraine, hemodynamics, VIP, SPECT, ultrasound
- Medical subject headings
- Headache, Migraine Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
VIPDrug
What is being measured
The primary outcome is the main question the study is designed to answer.
Headache intensity, Mean velocity of blood flow in the middle cerebral artery (VmeanMCA), superfical temporal artery diameter, PetCO2, adverse events and vital signs were recorded at T-10, T0 and then every 10 min until 120 min after start of infusion.
Secondary outcomes (1)
All subjects were asked to complete a headache diary every hour until 10 h after the discharge. The diary included headache characteristics and accompanying symptoms according to the International Headache Society (IHS 2004)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Nov 2005 (estimated)
- Study startDec 2003
- Study completionJun 2004
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Healthy Volunteers, Headache, Migraine, Hemodynamics, VIP, SPECT, UltrasoundStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Diagnosis
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind
- Enrolment
- 12 participants
Sponsor and investigators
- Lead sponsor
- Danish Headache Center
- Sponsor type
- University, hospital or other
- Investigators
- Jakob Møller Hansen, MD, Study chair, Danish Headache Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00255320
- Sponsor's protocol ID
- VIP-KASGlo2004
- Status last verified
- Dec 2003
- First submitted
- 16 Nov 2005
- Last updated
- 9 Dec 2005
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 9 Dec 2005. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Experimental Headache Induced by Vasoactive Intestinal Polypeptide
- ClinicalTrials.gov ID
- NCT00255320
- Acronym / sponsor ID
- VIP-KASGlo2004
- Keywords
- healthy volunteers, headache, migraine, hemodynamics, VIP, SPECT, ultrasound
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 12 participants
- Lead sponsor
- Danish Headache CenterUniversity, hospital or other
- Study start
- Dec 2003
- Study completion
- Jun 2004
- First posted
- 18 Nov 2005 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
We hypothesized that infusion of VIP may induce headache in healthy subjects and that VIP induced headache may be associated with dilatation of intra- and extracerebral blood vessels. To test this hypothesis, we performed a double blind placebo controlled crossover study in normal human volunteers and studied the effect on headache and cerebral as well as hemodynamic parameters.
Detailed description
We hypothesized that infusion of VIP may induce headache in healthy subjects and that VIP induced headache may be associated with dilatation of intra- and extracerebral blood vessels. To test this hypothesis, we performed a double blind placebo controlled crossover study in normal human volunteers and studied the effect on headache and cerebral as well as hemodynamic parameters. In a double-blind, placebo-controlled, crossover design, the subjects were randomly allocated to receive 8 pmol/kg/min VIP or placebo (isotonic saline) over 25 min. Headache intensity, Mean velocity of blood flow in the middle cerebral artery (VmeanMCA), superfical temporal artery diameter, PetCO2, adverse events and vital signs were recorded at T-10, T0 and then every 10 min until 120 min after start of infusion. Single photon emission computerized tomography (SPECT) was performed at T-0, T20 and T60.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind
Who may qualify
- Ages
- 18 to 60 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- healthy volunteers
Key exclusion criteria (1 listed)
- migraine cerebrovascular disorders pregnancy
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| VIP | Drug | – |
Primary outcome
Headache intensity, Mean velocity of blood flow in the middle cerebral artery (VmeanMCA), superfical temporal artery diameter, PetCO2, adverse events and vital signs were recorded at T-10, T0 and then every 10 min until 120 min after start of infusion.
1 secondary outcome
All subjects were asked to complete a headache diary every hour until 10 h after the discharge. The diary included headache characteristics and accompanying symptoms according to the International Headache Society (IHS 2004)
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 9 Dec 2005.
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Jakob Møller Hansen, MD study chair
Danish Headache Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing VIP in people with Healthy Volunteers, Headache, Migraine, Hemodynamics, VIP, SPECT, Ultrasound, 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 1 inclusion and 1 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 9 Dec 2005. 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. 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?
Headache intensity, Mean velocity of blood flow in the middle cerebral artery (VmeanMCA), superfical temporal artery diameter, PetCO2, adverse events and vital signs were recorded at T-10, T0 and then every 10 min until 120 min after start of infusion.. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 9 Dec 2005; AzTrials last refreshed its copy on 31 Oct 2026.