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Recruiting

NCT Number: NCT05301140

Vivistim Registry for Paired VNS Therapy (GRASP)

The purpose of the Vivistim Registry for Paired VNS Therapy (GRASP) is to gather real-world information on patients with arm and hand deficits post-stroke who are considering Vivistim System treatment. Before and after Vivistim System implant, patient data will be collected and reported throughout the therapy process. Physicians or sites will receive appropriate remuneration for the effort and cost involved in collecting and transmitting this data to MicroTransponder Inc.

Recruiting

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Key information

Age range

22 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Advent Health Orlando, Orlando, Florida, United States

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About this study

The registry is a data repository of information on patients considering implant of the Vivistim System. The Vivistim System is an FDA approved (P210007) device used to help improve upper limb motor deficits after a stroke. Most patients entered into the registry will go on to be implanted with the System although those who decide not to move forward with the implant procedure can still have data collected as a non-implant comparison group (as long as either or both FM-A / WMFT assessments were collected). The primary purpose of the registry is to provide real-world usage and outcomes data on the Vivistim System. The patient outcome registry will collect acute and long-term follow-up data on Vivistim implanted patients treated with Paired Vagus Nerve Stimulation (Paired VNS™) post-FDA approval.

Historical and implant information as well as quality of life information will be gathered on patients who consider implant of the Vivistim® System. Data will be collected at baseline, 3, 6, and 12 months after implantation, as well as yearly thereafter for up to three (3) years post-implant. Patients who decide not to have the Vivistim System implanted can continue to have data collected for comparison purposes.

Contributing sites and physicians will have access to their own site data and can have anonymized summary analyses on all aggregated data; sites will not have access to other sites' individual level data. Physicians can then use the above information to facilitate patient selection and treatment. Publication (oral or written) of data in the registry, other than individual site data, will not be permitted without the express written advance approval of MicroTransponder, Inc. and the other physicians contributing to the dataset.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients implanted with the Vivistim System for upper limb deficits associated with an ischemic stroke

Exclusion criteria

  • Not eligible for surgery

Treatment and study plan

Vivistim System

Device

VNS Paired with rehabilitation movements

Primary outcomes

  1. Fugl Meyer Assessment (FM-A)

    Time frame: 6 months

    Change in Fugl Meyer Assessment score

  2. Wolf Motor Function Test (WMFT)

    Time frame: 6 months

    Change in Wolf Motor Function Test score

Secondary outcomes

  1. Stroke Impact Scale (SIS)

    Time frame: 6 months

    Change in Stroke Impact Scale

  2. Motor Activity Log (MAL)

    Time frame: 6 months

    Change in Motor Activity Log

Study contacts

Contact information is provided by the study sponsor or research team.

Brent Tarver, BSEE

CONTACT

[email protected]

8556289375

Diana Hansen

CONTACT

[email protected]

8556289375

Sponsors and collaborators

Lead sponsor

MicroTransponder Inc.

Industry

Registry information

Acronym: GRASP

Important dates

Study start
2023
Primary completion
2028
Study completion
2028
First posted
Mar 29, 2022
Registry last updated
Jun 29, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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