VasoStar Vibrational Guidewire System to Facilitate Crossing Coronary Artery Chronic Total Occlusions (VST100)

September 15, 2025 updated by: VasoStar, LLC

Evaluation of a Vibrational Guidewire System to Facilitate Crossing Coronary Artery Chronic Total Occlusions in Patients With Chronic Angina Refractory to Maximally Tolerated Guideline Directed Medical Therapy

The goal of this project is to provide an improvement in wire performance to expedite crossing difficult lesions in the coronary vasculature.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This Early Feasibility Study (EFS) is proposed to evaluate the initial safety and efficacy of the VasoStar guidewire system to cross complex coronary vascular lesions in non-tortuous arterial segments which are resistant to crossing with a traditional interventional guidewire.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
10

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • Georgia
      • Atlanta, Georgia, United States, 30322
        • Recruiting
        • Emory University
        • Principal Investigator:
          • William Nicholson, MD
        • Contact:
          • William Nicholson, MD
    • Ohio
      • Akron, Ohio, United States, 44034
        • Recruiting
        • Summa Health
        • Contact:
          • Kevin Silver, MD
        • Principal Investigator:
          • Kevin Silver, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Male or female, over 18 years of age, presenting with at least one ischemia inducing lesion in a native coronary artery that is refractory to standard guidewire crossing. Chronic total occlusion (CTO) is defined as 100% coronary blockage for over a 3-month duration documented either by prior catheterization or by clinical evaluation
  • Suitable candidate for non-emergent, coronary angioplasty
  • Documented de-novo or restenotic coronary chronic total occlusion defined as a lesion with TIMI 0 flow for at least 90 days refractory to conventional guidewire crossing
  • Left ventricle ejection fraction > 20% within the last 12 months.
  • For antegrade chronic total occlusion procedures, activated clotting time (ACT) should be > 300 sec
  • Chronic total occlusion in a non-tortuous arterial segment
  • Voluntarily sign a Patient Informed Consent Form specific to the study.
  • Physically and mentally willing to comply with all study requirements.

Exclusion Criteria:

  • Successful target lesion crossing with a conventional wire system prior to enrollment
  • Prisoners.
  • Pregnancy
  • Patient has an active implantable.
  • Extensive dissection created by refractory guidewire
  • Severe ongoing congestive heart failure (New York Heart Association Class IV symptoms)
  • Active infection
  • Uncontrolled Hypertension (Systolic blood pressure > 180 mm) at the time of the procedure
  • History of severe reaction to contrast media
  • Recent myocardial infarction (within 2 weeks)
  • In-stent target lesion
  • Severe cerebrovascular disease including history of prior stroke or transient ischemic attack within 1 month at the time of the procedure
  • Saphenous vein graft (SVG) chronic total occlusion or an in-stent chronic total occlusion
  • Short life expectancy due to other illnesses such as cancer or pulmonary, hepatic or renal disease
  • Participation in another investigational protocol at the time of the procedure

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: VasoStar guidewire system
The VasoStar guidewire system will be used to cross vascular occlusion lesions.
Device: VasoStar guidewire system
The VasoStar Vibrational Guidewire System vibrates longitudinally at the distal segment of a wire with an electromagnetic source.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Incidence of Treatment-Emergent Serious Adverse Events
Time Frame: 30 days
Number of device- or procedure- related serious adverse events
30 days
Number of participants with successful crossing of the target lesion with the VasoStar guidewire system
Time Frame: 1 day
1 day

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Improved 6-minute walk distance at 6 months following the VasoStar successful procedure
Time Frame: 6 months
6 months
Improved 6-minute walk distance at 12 months following the VasoStar successful procedure
Time Frame: 12 months
12 months
Improved score on the Seattle Angina Questionnaire at the 6-month visit compared to the score at baseline
Time Frame: 6 months
6 months
Improved score on the Seattle Angina Questionnaire at the 12-month visit compared to the score at baseline
Time Frame: 12 months
12 months
Reduced number of hospitalizations for cardiac symptoms within 1 year following the VasoStar procedure, compared to the reported number of hospitalizations following standard CTO procedures.
Time Frame: 1 year
1 year
Reduced number of emergency room visits for cardiac symptoms within 1 year following the VasoStar procedure, compared to the reported number of hospitalizations following standard CTO procedures.
Time Frame: 1 year
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
VasoStar, LLC

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Summa Health

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 10, 2024

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 21, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 21, 2023

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 5, 2024

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 16, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 15, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2025

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • VST100

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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