Nurse Intervention Trial

April 7, 2026 updated by: Norwegian University of Science and Technology

Nurse Intervention Trial: The Evaluation of Usefulness of a Headache Nurse

This randomized open-label prospective study focus on headache patients initiating preventive treatment, where the treating physician identifies a need for follow-up visits in specialized healthcare. The study will clarify whether the implementation (compliance) and overall satisfaction of the patient are better with follow-up by a headache nurse compared to standard follow-up. Patients with signed written consent will be randomised to either group a: Telephone calls from nurse after two and 6 week or B. Patient-initiated follow-up by their general practitioner.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Potential patients suitable for this study must have undergone a regular consultation with a neurologist before. This consultation includes neurological and somatic examinations, diagnosis of the type of headache based on medical history, review of a completed headache diary, and any additional conducted examinations. The consultation will also involve an assessment of the possible initiation of preventive treatment. A selection of these patients will be prescribed electronic prescriptions for at least one previously untried type of preventive medication. During the consultation, patients will receive oral and written information about the dosage and expected possible side effects of the preventive medication. Those eligible for beta-blocker initiation will undergo an electrocardiogram (EKG) after the consultation. After completing the consultation, eligible patients will receive written and oral information about the study.

Those who provide consent to participate will, during subsequent registration with the secretaries at the neurological outpatient clinic immediately after the consultation, be randomized to one of two follow-up options (A or B) for further monitoring in the coming months until the scheduled follow-up, set at approximately 3 months, or later if there is a shortage of available appointments.

Group A will be followed up by a headache nurse through telephone consultations on at least two occasions shortly after the initiation of preventive medicine. Participants in this group will be invited to a planned final follow-up appointment after approximately 3 months with a neurologist.

Group B will have patient-managed follow-up with a planned final follow-up appointment after approximately 3 months. Participants will pick up the prescribed medication and contact their general practitioner or the neurological outpatient clinic by a study-specific email if they need advice from a neurologist.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
147

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Norway
      • Trondheim, Norway, 7489
        • St. Olavs hospital HF

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • One of the following headache diagnoses based on the International Classification of Headache Disorders, third edition (ICDH3): G44.2 Chronic tension-type headache and/or G43 Episodic and chronic migraine, G44.0 Episodic and chronic cluster headache, G44.8 Hemicrania Continua
  • Indication for preventive medication where there is at least one alternative with the need for follow-up assessment of effectiveness.

Exclusion Criteria:

  • Uncertain headache diagnosis.
  • Need further investigation after the initial consultation.
  • Lack of understanding of information provided in Norwegian, both verbally and in writing.
  • Inability to keep a digital headache diary.
  • Need treatment of other comorbid conditions requiring follow-up in specialized healthcare.
  • Treatment with Onabotulinumtoxin A or Calcitonin-gene-related Peptide (CGRP) inhibitors given with three months intervals

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Telephone by nurse
The headache patients will be contacted by nurse by phone after approximately 2 week and 6 week after start of preventive medical treatment. The patient will have a follow-up visit by neurologist after 3 months.
Other: Telephone by nurse
Patient-initiated follow-up at week 2 and 6
No Intervention: Patient-initiated follow-up
The headache patient contact their general practitioner (GP) and/or the neurologist by a study-specific email if they have questions regarding the preventive medical treatment

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Compliance
Time Frame: 2 months
number of participants who have carried out the prescribed preventive treatment, as in minimum duration of two months after the initial visit
2 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Number of days to at least a 30% reduction
Time Frame: 3 months
Number of days from inclusion to at least a 30% reduction erate to severe headache compared to in the frequency in the last month before the initial consultation
3 months
Responders
Time Frame: 3 months
Numbers of responders defined as> 50% decrease in headache days compared to in the frequency in the last month before the initial consultation
3 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Norwegian University of Science and Technology

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Oslo University Hospital
Haukeland University Hospital
St. Olavs Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Chair: Geir Braathen, St. Olavs Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 21, 2023

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 21, 2026

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 31, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 14, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 8, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 11, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 13, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 7, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2023-554940

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Publication by home page of NorHead

IPD Sharing Time Frame

In the near future

IPD Sharing Access Criteria

https://www.ntnu.no/norhead/om

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF

Study Data/Documents

  1. Study Protocol
    Information identifier: NorHead
    Information comments: English Study protocol available by request to the Norwegian Centre of Headache Research (NorHead)
  2. Statistical Analysis Plan
    Information identifier: NorHead
    Information comments: English SAP available by request to the the Norwegian Centre of Headache Research (NorHead)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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