Dystonia causes involuntary muscle contractions that twist the body into repetitive movements or abnormal postures. It can affect one body part or spread to multiple areas. Treatment typically starts with botulinum toxin injections every few months, sometimes combined with oral medications or deep brain stimulation for severe cases.
What's actually going on in research
Trials are testing new botulinum toxin formulations with longer duration, deep brain stimulation targets and programming strategies, gene therapies for inherited forms, and drugs that target specific neurotransmitter systems. Researchers are also working to identify biomarkers that predict which treatments will work for which people.
Gene therapy
Several trials are testing gene therapy for DYT1 dystonia and other inherited forms. These aim to correct the underlying genetic defect rather than just managing symptoms.
Deep brain stimulation advances
Studies are refining which brain targets work best for different dystonia types and testing adaptive stimulation that adjusts automatically. Some trials compare surgery timing to see if earlier intervention improves outcomes.
Longer-acting treatments
New botulinum toxin formulations and drug delivery methods aim to extend the time between injections beyond the current three to four months. This could reduce treatment burden for people who need frequent visits.
What to know before you search
Eligibility typically depends on dystonia type and distribution, symptom severity, response to current treatments, and for genetic studies, confirmation of a specific mutation.
What types of trials are currently open
- Botulinum toxin trials — Testing new formulations, doses, or injection techniques to improve symptom control or extend time between treatments.
- Deep brain stimulation trials — Studies of surgical implants that deliver electrical pulses to specific brain areas, testing different targets and programming approaches.
- Drug trials — Testing oral medications that affect dopamine, GABA, or other brain chemicals involved in movement control.
- Gene therapy trials — For inherited dystonia, testing treatments that aim to correct or compensate for the genetic mutation causing the condition.
- Natural history studies — Following people with dystonia over time to understand how the condition progresses and what factors influence severity.
Recently added Dystonia trials
Receive focused ultrasound stimulation to treat cervical dystonia
This study is a single-blinded, randomized control study that aims to recruit 48 participants. Participants will be "randomized" into one of the study arms of the study: active stimulation to GPi, active stimulation to DN, or sham stimulation. The purpose of the study is to look into the effects of LIFUS in patients with cervical dystonia. The participation will include seven study visits, at least 24 hours apart. All study visits will take place at TWH. The first visit is a screening visit. Visits 2-6 will be on consecutive days. Visit 7 will be a week from Visit 6 or from your last day of LIFUS, whichever comes first.
Receive magnetic brain stimulation while undergoing brain scans
By tracking resting-state fMRI scans, we aim to discover how repetitive transcranial magnetic stimulation (rTMS) changes brain connectivity in individuals with dystonia.
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