Clinical trial Recruiting at 2 sites Interventional Ages 18 and up

Implanting a device to treat severe angina in patients who can't undergo surgery

Official title: Use of the Neovasc Coronary Sinus Reducer System for the Treatment of Refractory Angina Pectoris in Patients With Angina Class 3-4 Who Are Not Candidates for Revascularization

Run by Tel-Aviv Sourasky Medical Center · NCT01566175 · Data updated 2026-11-12

This study is testing a new device to see if it can help people with severe chest pain who can't have surgery feel better and improve their quality of life.

More Refractory Angina trials

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment100 (estimated)
SponsorTel-Aviv Sourasky Medical Center
Government
Locations2 sites (Tel Aviv and 1 other locations)
StatusRecruiting
StartedAugust 30, 2011
Main results expectedDecember 31, 2030
Study endsDecember 31, 2031
Registry record updatedFebruary 2, 2022
Trial IDNCT01566175 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults over 18 with chronic refractory angina who are not suitable for surgical or percutaneous interventions.

Probably not a fit

Patients with recent acute coronary syndrome, unstable angina, or those who have undergone recent PCI or CABG may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study aims to implant the Neovasc Coronary Sinus Reducer in patients suffering from refractory angina pectoris, specifically those classified as CCS grade III or IV who are not candidates for revascularization. The approach involves using this unlicensed device to alleviate symptoms and improve quality of life for patients with advanced obstructive coronary artery disease despite optimal medical therapy. The study is open-label and focuses on patients who have demonstrated reversible ischemia through diagnostic tests. The device has shown safety in previous patients and aims to reduce angina episodes effectively.

Why it matters

Potential benefit: If successful, this treatment could significantly reduce angina episodes and improve the quality of life for patients with severe refractory angina.

How similar studies have gone: Previous studies using similar devices have shown promising safety and efficacy results, indicating potential for success in this approach.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* \>18 years old
* Symptomatic CAD with chronic refractory angina pectoris classified as Canadian Cardiovascular Society (CCS) grade III or IV despite attempted optimal medical therapy for thirty days prior to screening
* Non-candidate for surgical or percutaneous coronary intervention, as determined by 2 independent Professors of Internal medicine
* Reversible ischemia of the left ventricular wall demonstrated by Dobutamine Stress Echocardiography (Dobutamine ECHO; DSE), or by Thallium Spect

Exclusion Criteria:

* Recent (within three months) acute coronary syndrome
* Recent (within six months) PCI or CABG
* Unstable angina (recent onset angina, crescendo angina, or rest angina with ECG changes) during the thirty days prior to screening
* De-compensated congestive heart failure or hospitalization due to CHF during the three months prior to screening
* Life threatening rhythm disorders or any rhythm disorders that would require placement of an internal defibrillator and or pacemaker
* Severe chronic obstructive pulmonary disease as indicated by a forced expiratory volume in one second that is less than 55% of the predicted value
* Severe valvular heart disease
* Patient with pacemaker or defibrillator electrode in the right atrium, right ventricle, or coronary sinus
* Patient having undergone tricuspid valve replacement or repair
* Known allergy to stainless steel or nickel
* Patient with anomalous or abnormal CS as demonstrated by angiogram. Abnormality defined as: Abnormal CS anatomy (e.g., tortuosity, aberrant branch, persistent left SVC) and/or; CS diameter at the site of implantation\> 12mm

Where it's running

  • Tel Aviv Sourasky Medical Center
    Tel Aviv, Israel
    Recruiting
  • Tel Aviv Medical Center
    Tel Aviv, Israel
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • XC001 delivered by a heart catheter for chronic refractory angina

    This trial will try XC001 delivered through a catheter into the heart to reduce angina symptoms in adults 18–85 with refractory angina from blocked coronary arteries who cannot have bypass surgery or stents.

    Recruiting at 13 sites Phase 2 XyloCor Therapeutics, Inc. · Birmingham, Alabama and 13 other locations · NCT07048808

  • Using stem cells to treat patients with severe angina

    This study is testing whether using stem cells from patients' own bone marrow can help people with severe angina feel better and improve their quality of life.

    Recruiting Phase 2 Barts & The London NHS Trust · London, England · NCT05711849

  • Treatment for patients with severe chest pain not relieved by medication

    This study is testing a new device called the Shockwave Reducer to see if it can help people with severe chest pain that doesn't get better with regular medications.

    Recruiting at 92 sites Shockwave Medical, Inc. · Phoenix, Arizona and 96 other locations · NCT05102019

  • Coronary Sinus Reducer for treating refractory microvascular angina

    This study is testing whether a device called the Coronary Sinus Reducer can help people with severe chest pain from microvascular angina feel better when combined with their usual heart medications.

    Recruiting Johannes Gutenberg University Mainz · Mainz, Rhineland-Palatinate · NCT04606459

  • Advanced invasive diagnosis for post-PCI angina in patients referred for coronary angiography

    This study tests a specialized invasive approach to find the cause of angina in people who previously had PCI and are now referred for coronary angiography.

    Recruiting at 5 sites Fundacion Investigacion Interhospitalaria Cardiovascular · Leganés, Madrid and 4 other locations · NCT07638137

  • Lesion-specific angina thresholds measured during invasive coronary testing

    This project tests whether different coronary narrowings cause angina at different levels of blood-flow reduction in people with stable angina who have two blockages suitable for PCI.

    Recruiting at 6 sites Imperial College London · Basildon and 6 other locations · NCT07386418

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.