A Cross Over Pilot Study of Abobotulinum Toxin A (Dysport) as a Treatment for Task-dependent Uppe… (NCT03136341) | Clinical Trial Compass
RecruitingPhase 4
A Cross Over Pilot Study of Abobotulinum Toxin A (Dysport) as a Treatment for Task-dependent Upper Limb Tremor
United States25 participantsStarted 2018-12-04
Plain-language summary
Task-dependent upper limb tremor is a disorder that frequently impairs patients' function and quality of life. Few studies exist that quantify the improvements in motor performance and disability with botulinum toxin (injections). The study team aims to perform an exploratory pilot trial using toxin Type A (Dysport) in 25 patients with task-dependent upper limb tremor, to refine quantitative measures of performance using blinded video analysis, demonstrate efficacy and tolerability of injections, and provide power calculations for a potential future multi-centered double blinded clinical trial.
Who can participate
Age range
18 Years – 80 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Patients with task-dependent essential tremor in upper limb. Tremor is present during at least one of the study functional tasks i. pointing task (touch between nose and a pen held 2 ft. in front. ii. pouring task (cup: pouring water out/in). iii. feeding task (weighted fork from plate on table to mouth). iv. string instrument bowing or holding instrument in static position. v. computer mouse (simple vertical or horizontal movements).
* Patients must be capable of performing informed consent.
* Patients on stable medications for treatment of task-dependent essential tremor for 1 month prior to study entry and maintain them throughout the study.
* Patients previously treated with BoNT of any type must have occurred no sooner than 12 weeks prior to study entry.
Exclusion Criteria:
* Patients with no presence of tremor during study functional tasks.
* Presence of tremor during the functional task is below minimum amplitude required to be considered for injection based upon investigator's clinical judgment.
* Patients with unstable medical conditions or psychiatric conditions.
* Patients with a medical condition that precludes them from receiving BoNT injections.
* Pregnant women, or premenopausal women not willing to use contraceptive measures throughout the duration of the study.
* Lithium, Valproic acid, Amiodarone, typical and atypical neuroleptics. Exposure to other than the listed tremorogenic or potentially tremorogenic drugs is allowed only if, in…
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.