Repeated GON Injections in CCH
REGON
Repeated Corticosteroid Injections Around the Greater Occipital Nerve (GON) as Prophylactic Treatment in Chronic Cluster Headache
1 other identifier
interventional
50
1 country
2
Brief Summary
Background: \- The effect of repeated GON-injections has never been studied in a double-blind randomized trial as a prophylactic therapy in a well-documented group of chronic patients. As such, (repeated) GON-injection has not yet found its place in current (inter)national treatment protocols for chronic cluster headache. Objectives: \- The primary objective is to determine if repeated GON-injection result in effective control of cluster headache attacks for more days compared to placebo in chronic cluster headache. Eligibility: \- Patients will be selected from the LUMC (Leiden University Medical Center) and CWZ (Canisius Wilhelmina Hospital) chronic cluster headache populations, diagnosed based upon the ICHD-3. Design: \- Bi-centre, randomized, double-blind, placebo-controlled retention trial with a maximum follow-up of one year.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_3
Started Nov 2022
Typical duration for phase_3
2 active sites
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
April 5, 2022
CompletedFirst Posted
Study publicly available on registry
April 12, 2022
CompletedStudy Start
First participant enrolled
November 7, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2026
ExpectedNovember 24, 2025
February 1, 2025
3.1 years
April 5, 2022
November 19, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
mean number of days, from first injection until discontinuation, study participants remain using study medication (retention rate in survival curve)
1 year
Secondary Outcomes (7)
Frequency of weekly cluster headache attacks vs. baseline
1 year
Mean duration of attacks vs. baseline
1 year
Mean severity (1-10) of attacks vs. baseline
1 year
Proportion of study participants with >50% or 100% reduction in attack frequency vs. baseline
1 year
Median injection interval
1 year
- +2 more secondary outcomes
Study Arms (2)
Placebo Arm
PLACEBO COMPARATORIntervention Arm
EXPERIMENTALInterventions
Eligibility Criteria
You may qualify if:
- Age ≥18 and ≤ 70 years
- Chronic cluster headache (International Classification of Headache Disorders - third edition; ICHD-3)
- Ictal pain must be always at the same side
- ≥4 weekly attacks of cluster headache in the prospective one-month baseline observation period
- On a stable regimen of cluster headache prophylactics for \>4 weeks prior to onset of study treatment and agreeing not to increase the dose and not starting a new cluster prophylactic during the study period
You may not qualify if:
- Contra-indication against, or current use of, corticosteroids
- Occipital nerve stimulation (ONS)
- Use of anticoagulation medication or a known bleeding disorder
- Inability to use an electronic diary to monitor individual attacks and other items
- Other headaches if the patient cannot reliably distinguish them from attacks of cluster headache
- Current use of prophylactic medication for other headaches
- Pregnancy
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
Leiden University Medical Center
Leiden, Netherlands
Canisius Wilhelmina Ziekenhuis
Nijmegen, Netherlands
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
April 5, 2022
First Posted
April 12, 2022
Study Start
November 7, 2022
Primary Completion
December 1, 2025
Study Completion (Estimated)
June 1, 2026
Last Updated
November 24, 2025
Record last verified: 2025-02