NCT03010189

Brief Summary

Cluster headache is one of the most painful headaches, characterized by recurring episodes of unilateral, periorbital pain, which is accompanied by autonomic symptoms that seem to be of both sympathetic and parasympathetic origin. The pathophysiology behind the condition is largely unknown, but increasing evidence indicate that the hypothalamus plays a pivotal role. The headache attacks come in clusters or bouts (hence the name) which last up to three months, after which the headache disappears for at least one month. 10-15% have chronic cluster headache. During attacks, the patients have cranial sympathetic hypoactivity and parasympathetic hyperactivity, whereas they have cranial parasympathetic hypoactivity during remission phase. There is an emerging hypothesis that headache attacks are elicited in a state of autonomic hypoarousability, which is also supported by the fact that most cluster attacks occur during the night, when the patients are sleeping. The aim in this project is to study the intercept between the sleep-wake cycle, autonomic tone and the occurrence of headache attacks, by using actigraphy, heart-rate variability and pupillometry. All these methods are well validated, and frequently used in studies on sleep and autonomic function. The study design is that of a case-control model where 15 cluster headache patients will undergo pupillometry, before wearing the actigraph and heart-rate variability-monitor for two weeks, once in cluster bout and once in remission phase. The actigraphy will register nocturnal movement and sleep quality, and headache attacks will be registered by pressing a button on the actigraph. The pupillometry measures pupillary constriction and dilation in response to light, a reflex that is controlled by the autonomic nervous system. The heart-rate variability monitors fluctuations in the heart rate which reflects the sympathovagal balance of cardiac control. All participants will fill out the Pittsburgh Sleep Quality Index before and after registration. In addition, 15 healthy controls will undergo one session of the same examinations. The results of the study will give valuable insight to the pathophysiology of a condition that is very painful and has great impact on the patients' quality of life, and also add knowledge to the relation between headache, sleep and the autonomic nervous system.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2017

Typical duration 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

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 27, 2016

Completed
5 months until next milestone

Study Start

First participant enrolled

January 1, 2017

Completed
3 days until next milestone

First Posted

Study publicly available on registry

January 4, 2017

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2018

Completed
Last Updated

March 21, 2019

Status Verified

March 1, 2019

Enrollment Period

1.9 years

First QC Date

July 27, 2016

Last Update Submit

March 19, 2019

Conditions

Keywords

Cluster headacheActigraphyPupillometry

Outcome Measures

Primary Outcomes (5)

  • Change in pupillary average contraction velocity

    The velocity of pupillary constriction in response to light, measured with a pupillometer, in mm/sec

    Once in the beginning of a headache phase, and once 4 weeks after last headache attack

  • Change in total sleep time

    Average number of hours asleep per night, measured over two weeks with an actigraph

    Measured for two weeks during headache phase, and again four weeks after last headache attack

  • Change in sleep efficiency

    Average number of hours asleep per night divided by time spent in bed, measured over two weeks with an actigraph

    Measured for two weeks during headache phase, and again four weeks after last headache attack

  • Change in wake after sleep onset

    Average number of awakenings during the sleep phase, measured over two weeks with an actigraph

    Measured for two weeks during headache phase, and again four weeks after last headache attack

  • Change in LF/HF ratio

    The ratio of low-frequency and high-frequency fluctuations in heart rate, measured over two weeks with a heart-rate variability monitor

    Measured for two weeks during headache phase, and again four weeks after last headache attack

Study Arms (2)

Patient

EXPERIMENTAL

Cluster headache patients are examined with light reflex pupillometry, two weeks actigraphy and heart-rate variability monitoring both in headache phase and remission phase.

Device: ActigraphyDevice: Heart-rate variability monitoringDevice: Pupillometry

Controls

ACTIVE COMPARATOR

Healthy controls undergo the same examinations once: light reflex pupillometry, actigraphy and heart-rate variability monitoring.

Device: ActigraphyDevice: Heart-rate variability monitoringDevice: Pupillometry

Interventions

A small computer in the shape of a wristwatch, that registers movement and assesses sleep quality.

ControlsPatient

A small computer that registers variation in heart rate, which reflects cardiac autonomic tone.

ControlsPatient

A handheld infrared camera that sends out a light flash and records the pupil as it contracts and dilates, as a measure of pupillary autonomic tone.

ControlsPatient

Eligibility Criteria

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

You may qualify if:

  • Episodic or chronic cluster headache, according to the ICHD-IIIb criteria.

You may not qualify if:

  • Cardiac arrythmia or known autonomic dysfunction.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Nordland Hospital Trust

Bodø, Nordland, 8003, Norway

Location

MeSH Terms

Conditions

Cluster Headache

Interventions

Actigraphy

Condition Hierarchy (Ancestors)

Trigeminal Autonomic CephalalgiasHeadache Disorders, PrimaryHeadache DisordersBrain DiseasesCentral Nervous System DiseasesNervous System Diseases

Intervention Hierarchy (Ancestors)

Monitoring, PhysiologicDiagnostic Techniques and ProceduresDiagnosisAccelerometryInvestigative Techniques

Study Officials

  • Karl B Alstadhaug, MD, PhD

    Nordlandssykehuset HF

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 27, 2016

First Posted

January 4, 2017

Study Start

January 1, 2017

Primary Completion

December 1, 2018

Study Completion

December 1, 2018

Last Updated

March 21, 2019

Record last verified: 2019-03

Data Sharing

IPD Sharing
Will not share

Locations