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CCH attack frequency reduction after psilocybin correlates with hypothalamic functional connectivity.

Martin K Madsen1,2, Anja Sofie Petersen3, Dea S Stenbaek1,4

  • 1Neurobiology Research Unit, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark.

Headache
|January 19, 2024
PubMed
Summary
This summary is machine-generated.

Psilocybin shows promise in reducing chronic cluster headache attacks by impacting hypothalamic connectivity. This study suggests psilocybin may be a feasible prophylactic treatment for this debilitating condition.

Keywords:
cluster headachefunctional connectivityfunctional magnetic resonance imaginghypothalamuspsilocinpsilocybin

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Neurology

Background:

  • Chronic cluster headache (CCH) is a severe, difficult-to-treat neurological disorder.
  • Hypothalamic dysfunction is a suspected, yet not fully understood, factor in CCH pathophysiology.
  • Limited clinical evidence exists for psilocybin's potential prophylactic benefits in CCH.

Purpose of the Study:

  • To assess the feasibility and prophylactic efficacy of psilocybin in patients with CCH.
  • To investigate the impact of psilocybin on hypothalamic functional connectivity (FC) in CCH patients.

Main Methods:

  • A small, open-label clinical trial involving 10 CCH patients over 10 weeks.
  • Patients received three doses of oral psilocybin (0.14 mg/kg) during weeks five, six, and seven.
  • Hypothalamic FC was evaluated using functional magnetic resonance imaging (fMRI) before and after psilocybin administration.

Main Results:

  • Psilocybin treatment was well-tolerated by all participants.
  • A significant reduction in headache attack frequency (mean 31%) was observed from baseline to follow-up.
  • Changes in hypothalamic-diencephalic FC correlated with the reduction in attack frequency, suggesting a neural pathway involved in treatment response.

Conclusions:

  • Psilocybin demonstrates potential as a prophylactic treatment for chronic cluster headache.
  • The hypothalamus and its functional connectivity appear to play a role in the therapeutic effects of psilocybin for CCH.
  • Further clinical research is necessary to validate these findings and explore psilocybin's role in CCH management.