Long-term Effect of Low Frequency Stimulation on Aspiration and Freezing of Gait in PD With STN DBS
Public ClinicalTrials.gov record NCT02549859. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Long-term Effect of Low Frequency 60Hz Stimulation on Aspiration, Freezing of Gait and Other Axial and Motor Symptoms in PD Patients With Bilateral STN DBS
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Our recent study (Xie et al, Neurology 2015; 84: 415-420) found that bilateral STN DBS of 60Hz, compared to the traditional 130Hz, decreased the aspiration frequency and swallowing difficulty, freezing of gait (FOG), and other axial symptoms and parkinsonism in Parkinson patients with FOG refractory to 130Hz and medications. The benefit of 60Hz stimulation persisted during the 6-week study period, but with worsening tremor in one patient. However, it remains unknown whether the benefit of 60Hz would persist on prolonged stimulation period, and whether there is carry-over effect across different conditions. Hence, the investigators would like to test the hypothesis that the 60Hz stimulation, compared to 130Hz might have persistent benefit over an extended period in reducing the swallowing dysfunction, FOG, and other axial symptoms in these PD patients even after correcting the potential carry-over effect.
Study identification
- NCT ID
- NCT02549859
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 11 participants
Conditions and interventions
Conditions
Interventions
- Deep Brain Stimulation (DBS) at 60 Hz Device
- Deep Brain Stimulation (DBS) at 130 Hz Device
- Deep Brain Stimulation (DBS) Off (Sham) Device
Device
Eligibility (public fields only)
- Age range
- 45 Years to 75 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jul 31, 2015
- Primary completion
- Apr 30, 2017
- Completion
- Apr 30, 2017
- Last update posted
- Oct 28, 2020
2015 – 2017
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Chicago, Department of Neurology | Chicago | Illinois | 60637 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT02549859, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Oct 28, 2020 · Synced Sep 5, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02549859 live on ClinicalTrials.gov.