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Evaluating Repetitive Transcranial Magnetic Stimulation for Refractory Chronic Cluster Headache Prevention: Insights
Leonardo Portocarrero-Sánchez1, Cristian Rizea1, Exuperio Díez-Tejedor1,2
1Neurology Department, University Hospital La Paz, 28046 Madrid, Spain.
Brain Sciences
|June 26, 2025
Summary
Repetitive transcranial magnetic stimulation (rTMS) showed potential transient benefits for refractory chronic cluster headache (CCH) in a small pilot study. However, treatment adherence and sustained efficacy remain significant challenges for CCH patients.
Area of Science:
- Neurology
- Neuroscience
- Clinical Trials
Background:
- Cluster headache (CH) is a severe primary headache disorder.
- Refractory chronic cluster headache (CCH) presents significant treatment difficulties.
- Neuromodulation, such as rTMS, is an underexplored option for CCH.
Purpose of the Study:
- To evaluate the efficacy and tolerability of repetitive transcranial magnetic stimulation (rTMS) in patients with refractory chronic cluster headache (rCCH).
- To assess rTMS as a potential treatment alternative for challenging CCH cases.
Main Methods:
- A randomized, double-blind, placebo-controlled, crossover pilot study.
- Patients with rCCH received either rTMS or sham stimulation, followed by the alternative in a crossover design.
- The primary endpoint was the change in weekly attacks per week (APW); secondary endpoints included tolerability and symptom severity.
Main Results:
- rTMS did not show a statistically significant reduction in attacks per week compared to sham (p = 0.672).
- Two patients experienced temporary remission during rTMS, but symptoms recurred.
- No significant changes were noted in secondary outcomes; side effects were mild and transient.
Conclusions:
- rTMS may offer transient clinical benefits in select rCCH patients.
- Treatment adherence and sustained efficacy are critical challenges for rTMS in rCCH.
- Further research is needed to optimize rTMS protocols for CCH.
