112
Participants
Start Date
November 1, 2019
Primary Completion Date
September 30, 2025
Study Completion Date
September 30, 2025
Botulinum toxin type A
Botulinum toxin 25 Allergan units in 0.5 ml Sodium Chloride (NaCl) 0.9 % Braun. One injection in the headache side of the face, targeted at the sphenopalatine ganglion (SPG)
placebo
0.5 ml Sodium Chloride (NaCl) 0.9% Braun. One injection in the headache side of the face, targeted at the sphenopalatine ganglion (SPG)
RECRUITING
Praxisklinik Ulmenhof, Hamburg
RECRUITING
Fondazione IRCCS Istituto Neurologico Carlo Besta (CBNI), Milan
RECRUITING
St Olavs Hospital, Trondheim
RECRUITING
Department of Neurology, University Clinic Hospital. Catholic University of Valencia, Valencia
RECRUITING
National Hospital of Neurology and Neurosurgery, University College of London, London
St. Olavs Hospital
OTHER
University College, London
OTHER
Fondazione I.R.C.C.S. Istituto Neurologico Carlo Besta
OTHER
Catholic University of Valencia
OTHER
PRAXISKLINIK ULMENHOF
UNKNOWN
Norwegian University of Science and Technology
OTHER