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Clinical Trial Summary

Central post-stroke pain (CPSP) is a neuropathic pain syndrome and one of the major sequelae after ischemic or hemorrhagic cerebral stroke. Recently, a modified stimulation paradigm has been developed in the field of spinal cord stimulation (SCS) for a variety of neuropathic pain disorders. To date, this stimulation paradigm has not yet been evaluated systematically for deep brain stimulation to treat neuropathic pain disorders. The purpose of this clinical investigation is to investigate if Burst-DBS of the thalamus is more effective compared to classical continuous low-frequency stimulation DBS to reduce the subjective pain intensity in patients with chronic neuropathic pain after stroke or in patients with neuropathic facial pain.


Clinical Trial Description

Central post-stroke pain (CPSP) is a neuropathic pain syndrome and one of the major sequelae after ischemic or hemorrhagic cerebral stroke. Neuropathic facial pain (NFP) can arise after damage to or affection of the trigeminal nerve caused by trauma, infection or postsurgery and results in characteristic burning and shooting pain of the affected area in the face. The lack of effective analgesic treatment for these two conditions continues to be an unmet medical need and led to the investigation of alternative treatments of CPSP and NFP such as deep brain stimulation (DBS). DBS is an invasive neuromodulation therapy that consists of placing small electrodes into confined anatomical structures of the brain to deliver small therapeutic currents. Recently, a modified stimulation paradigm has been developed in the field of spinal cord stimulation (SCS) for a variety of neuropathic pain disorders. This so-called burst stimulation provides pulse trains of five high-frequency pulses at 500 Hz (= 500 Hz spike frequency) occurring 40 times a second (= 40 Hz burst frequency). Burst SCS has been demonstrated to provide a better pain relief compared to classical tonic (continuous application of 50 Hz stimulation) SCS without causing paresthesia. To date, this stimulation paradigm has not yet been evaluated systematically for deep brain stimulation to treat neuropathic pain disorders. The purpose of this clinical investigation is to investigate if Burst-DBS of the thalamus is more effective compared to classical continuous low-frequency stimulation DBS to reduce the subjective pain intensity in patients with chronic neuropathic pain after stroke or in patients with neuropathic facial pain. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05204472
Study type Interventional
Source University Hospital Inselspital, Berne
Contact Andreas Nowacki, MD
Phone +41 31 6320014
Email [email protected]
Status Not yet recruiting
Phase N/A
Start date June 1, 2022
Completion date December 2026

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