Evaluating deep brain stimulation for essential tremor

The Swedish Essential Tremor (SWEET) Trial - A Multicentre Randomized Controlled Trial of Deep Brain Stimulation for Essential Tremor

NA · Karolinska Institutet · NCT03832712

This study is testing if deep brain stimulation can help people with essential tremor feel better compared to the best current medication.

Quick facts

PhaseNA
Study typeInterventional
Enrollment100 (estimated)
Ages18 Years to 75 Years
SexAll
SponsorKarolinska Institutet (other)
Locations6 sites (Gothenburg and 5 other locations)
Trial IDNCT03832712 on ClinicalTrials.gov

What this trial studies

This trial aims to compare the effects of deep brain stimulation (DBS) against the best medical treatment for patients with essential tremor (ET) in a randomized, single-blinded controlled format. It will assess the efficacy of DBS targeting both the ventrolateral thalamus and a new target in the posterior subthalamic area. The study also seeks to map the optimal target areas for stimulation and evaluate the long-term effects of DBS on ET. By refining the approach to DBS, the trial hopes to improve outcomes for patients suffering from this condition.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 to 75 with a diagnosis of essential tremor, experiencing substantial incapacity and unsatisfactory response to medical therapy.

Not a fit: Patients with cognitive impairment or other significant co-morbidities that could affect the study outcomes may not benefit from this trial.

Why it matters

Potential benefit: If successful, this study could provide a more effective treatment option for patients with essential tremor, potentially improving their quality of life.

How similar studies have performed: Previous studies have shown success with deep brain stimulation in treating other movement disorders, indicating potential for this approach in essential tremor, although this specific targeting is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosis of ET, as decided by the movement disorder specialist; Substantial incapacity; Duration of symptoms \> 5 years; Age 18 - 75; unsatisfying effect from β-blockers, or be unable to tolerate the medical therapy.

Exclusion Criteria:

* Cognitive impairment; Co-morbidity or non-compliance likely to jeopardize the result or to confuse the evaluation; Normal surgical exclusion criteria.

Where this trial is running

Gothenburg and 5 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Essential Tremor, Deep Brain Stimulation, Randomized Controlled Trial

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.