A Study of the Combination of Electrical Stimulation and Dysport® in Myofascial Pain Syndrome.
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government.
Read our disclaimer for details.
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Layout table for eligibility information
Ages Eligible for Study:
21 Years and older (Adult, Older Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Chronic neck and shoulder pain for at least 6 months, refractory with other conservative treatments
Presents at baseline with pain score greater than 50mm on 100mm length VAS. Pain score will be measured as overall pain over the 7 days preceding the visit during activities
Active trigger point (TrP) defined as a tender spot localised in a taut band of muscle fibres associated with tenderness AND referred pain recognised by the patient into well-defined areas that are remote from the TrP area at palpation AND preferably local twitch response at palpation AND/OR jump sign at palpation
History of surgery on neck
Neurological deficits, neuromuscular junction disorder, Motor Neuron disease
Patient has received anesthetic injections to the target trigger point within 4 weeks of study enrolment, or corticosteroid injections within 3 months
Systemic inflammatory disease
Hypersensitivity to Dysport®
Diffuse tender points, or diagnosed with fibromyalgia
Previous electrical stimulation
Previous injection of Dysport® within 6 months of study enrolment