NCT06917144

Brief Summary

The goal of this clinical trial is to learn if drug ABC works to treat severe asthma in adults. It will also learn about the safety of drug ABC. The main questions it aims to answer are: Does Transcranial Magnetic Stimulation lower the number of attacks per week in patients with refractory cluster headache ? Researchers will compare transcranial magnetic stimlation to a sham stimulation (a look-alike stimulation) to see if it works to prevent attacks of cluster headache. Participants will: Recieve stimulation for 10 minutes for 10 consecutive working days in 2 periods of time, separated by a 1 month washout period. Visit the clinic for each treatment day. Keep a diary of their symptoms and the number of times they use a rescue medication

Trial Health

87
On Track

Trial Health Score

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

Enrollment
8

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Dec 2023

Shorter than P25 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

Study Start

First participant enrolled

December 21, 2023

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2024

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

March 25, 2025

Completed
14 days until next milestone

First Posted

Study publicly available on registry

April 8, 2025

Completed
Last Updated

April 8, 2025

Status Verified

March 1, 2025

Enrollment Period

5 months

First QC Date

March 25, 2025

Last Update Submit

March 31, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Reduction in number of attacks per week

    The mean change in the number of attacks per week at the end of each treatment period was compared with the baseline, from the time of informed consent until the last follow-up moment (3 months after the end of the second treatment period).

    From enrollment to the end to follow up period, at 3 months after last treatment period (week 8)

Secondary Outcomes (4)

  • Assessing the reduction in symptomatic medication use.

    From enrollment to the end of follow up period, at 3 months after second treatment period (week 8)

  • To assess the reduction in intensity of cluster headache attacks

    From enrollment to the end of follow up period, at 3 months after second treatment period (week 8)

  • To assess the change in duration in cluster headache attacks

    From enrollment to the end of follow up period, at 3 months after second treatment period (week 8)

  • To assess the tolerability to treatment

    From enrollment to the end of follow up period, at 3 months after second treatment period (week 8)

Study Arms (2)

Sequence A

OTHER

The study consisted of two treatment periods (rTMS and sham stimulation), separated by a one-month washout period, and organized into two sequences (A and B) Sequence A: rTMS → washout → sham. Sequence B: sham → washout → rTMS.

Device: Repetitive Transcranial Magnetic StimulationDevice: Sham Stimulation

Sequence B

OTHER

Sequence B: sham → washout → rTMS.

Device: Repetitive Transcranial Magnetic StimulationDevice: Sham Stimulation

Interventions

Stimulation sessions were performed using a YINGCHI M-100 Ultimate device with liquid-cooled figure-8 coils. Patients attended 10-minute sessions daily for 10 consecutive working days. For rTMS, stimulation was delivered at an excitatory frequency of 10 Hz, targeting the M1, contralateral to the side of pain in the facial region. Each session consisted of the following steps. * 10 series: 60 pulses per series (600 pulses in total). * Rest intervals: 60 seconds between series. * Intensity: 70% of the resting motor threshold (RMT). RMT was determined using single-pulse stimulation over the M1 region controlling the abductor pollicis brevis muscle, localized via neuronavigation. The threshold was de-fined as the lowest stimulator intensity producing a motor-evoked potential amplitude \>50 µV in at least 5 of 10 trials.

Sequence ASequence B

Sham Stimulation: The same device and protocol used for intervention protocol with Repetitive Transcranial Magnetic Stimulation were used for sham stimulation, but no active stimulation was delivered. The equipment produced identical sounds and appearances, thereby ensuring blinding.

Sequence ASequence B

Eligibility Criteria

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

You may qualify if:

  • years of age or older
  • Diagnosed with Chronic Cluster Headache (CCH) based on the International Classification of Headache Disorders 3rd Edition
  • Diagnosed with refractory CCH based on the European Headache Federation criteria of 2014.

You may not qualify if:

  • History of epilepsy.
  • Concomitant diagnosis of any other headache (if the patient was unable to differentiate between them).
  • Carriers of any electronic device, or any additional contraindication for Transcranial Magnetic Stimulation, such as pregnancy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital Universitario La Paz

Madrid, Madrid, Spain

Location

Related Publications (1)

  • Portocarrero-Sanchez L, Rizea C, Diez-Tejedor E, Leon-Ruiz M, Diaz-de-Teran J. Evaluating Repetitive Transcranial Magnetic Stimulation for Refractory Chronic Cluster Headache Prevention: Insights from a Randomized Crossover Pilot Trial. Brain Sci. 2025 May 23;15(6):554. doi: 10.3390/brainsci15060554.

MeSH Terms

Conditions

Cluster Headache

Interventions

Transcranial Magnetic Stimulation

Condition Hierarchy (Ancestors)

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

Intervention Hierarchy (Ancestors)

Magnetic Field TherapyTherapeutics

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PhD

Study Record Dates

First Submitted

March 25, 2025

First Posted

April 8, 2025

Study Start

December 21, 2023

Primary Completion

May 31, 2024

Study Completion

May 31, 2024

Last Updated

April 8, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will not share

Locations