NCT07257107Recruiting
Effect of Transcutaneous Auricular Vagus Nerve Stimulation Combined With Upper Extremity Robot-Assisted Training on Upper Extremity Motor Functions in Stroke Patients
Source: ClinicalTrials.gov · Last updated 2 Dec 2025
Brief summary (registry, in English)
The effects of stroke on the upper extremity are a common and significant cause of long-term disability, with 65% of patients reporting an inability to participate in daily activities with the affected upper extremity after 6 months. Robotic-assisted training (RAT) has been widely used in recent years to improve upper extremity function. RAT positively impacts upper extremity function and activities of daily living by inducing motor learning from intense, highly repetitive, and task-focused movements of the upper extremity. However, current, limited clinical solutions, including minimally invasive transcutaneous auricular vagus nerve stimulation (taVNS), have not yielded promising results. Therefore, the aim of this study was to investigate the effects of the combination of taVNS and RTA on motor impairment, upper extremity motor function, grip strength, daily living characteristics, and quality of life in individuals with stroke. Stroke medications were randomly assigned to RDE+taVNS (n=15) and RDE+sham taVNS (n=15). All participants will receive conventional treatment for 45 minutes per day, 3 days per week, for 5 weeks. One group will also receive RDE+taVNS treatment for 45 minutes per day, 2 days per week, for 5 weeks, while the other group will receive RDE+sha taVNS. Participants will be assessed using the Fugl-Meyer Upper Extremity Assessment, ARAT (Action Research Arm Test), and Box and Block Test as primary outcomes at baseline and after 5 weeks. This project will contribute to the literature by demonstrating the effectiveness of taVNS, one of the most promising methods available. Furthermore, the results will prompt discussion on the applicability of the method not only to stroke patients but also to other disease groups. The unique value of this project is that it is the first study to investigate product improvements in taVNS systems.
- Status (registry)
- Recruiting
- Study type
- Interventional
- Enrollment
- 30 (estimated)
- First submitted
- 21 Nov 2025
- Start date
- 1 Oct 2025
- Primary completion date
- 1 Mar 2027
- Lead sponsor
- Istanbul University - Cerrahpasa
- Diseases
- Stroke
- NCT number
- NCT07257107
What you commit to
- Study type: Interventional
- Planned participants: 30
- From 1 Oct 2025 to the primary completion date, 1 Mar 2027
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study design.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Receiving a Botox injection into the affected upper extremity at least 4 weeks prior,
Other illness
- Presence of a medical or cognitive condition (personality disorder, anxiety, depression, etc.) that would prevent participants from participating in the study,
- Presence of cardiac problems such as atrial fibrillation, atrial flutter, sick sinus syndrome, or atrioventricular block.
Other
- Use of any stimulation device, such as a pacemaker or other neurostimulator,
- Severe spasticity in the upper extremity (Modified Ashworth Scale ≥3),
- Presence of dysphagia or aphasia,
Who the study is looking for
- 1\) Individuals aged 18-70 years diagnosed with ischemic or hemorrhagic stroke lasting longer than 6 months,
- Moderate to severe upper extremity weakness (20-50 out of 66 on the Fugl-Meyer Upper Extremity Motor Assessment Scale),
- Ability to communicate and understand (Mini Mental State Examination (MMSE) score ≥ 23), and 4) Upper extremity spasticity of 2 or less on the Modified Ashworth Scale.
Age in the registry: 18 years to 70 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Save your city in your profile to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| İstanbul Üniversitesi-Cerrahpaşa Sağlık Bilimleri Fakültesi Büyükçekmece Yerleşkesi Coordinator of this site? Confirm its status | Istanbul | Turkey (Türkiye) | Recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.