Subcutaneous Implantable Defibrillator

Patient Study Eligibility

Learn about patient inclusion and exclusion criteria for the MODULAR ATP Clinical Study. Plus, explore resources to help you find a study site, refer potential candidates and educate them about the trial.

Inclusion Criteria

What Type of Patient Would Benefit from mCRM?

1. Indicated for ICD

Patient must meet one of the following criteria:

  • Existing S-ICD patient
  • De novo patient with class I, IIa or IIb guideline ICD indications1, 2*

*Includes TV-ICD patients with system fully explanted during or prior to full coordinated system implant.

Intermuscular technique image 1

2. Risk for MVT

Patient must be at risk for Monomorphic Ventricular Tachycardia (MVT) based on at least one of the following:


  • Sustained VT/VF (secondary prevention) with significant scar
  • Syncope deemed to be arrhythmic in origin

LVEF ≤ 50%

  • Sustained VT/VF (secondary prevention)
  • Non-sustained MVT

LVEF ≤35%

  • Ischemic cardiomyopathy
  • Non-ischemic cardiomyopathy with significant scar

Exclusion Criteria

  • Patient with an ongoing complication due to Cardiac Implantable Electronic Device (CIED) infection or CIED explant
  • Transvenous lead remnants within the heart from a previously implanted CIED (Note: transvenous lead remnants outside the heart (e.g., in the SVC) are allowed)
  • Patient indicated for implantation of a dual chamber pacemaker or cardiac resynchronization therapy (CRT)
  • Patient with another implanted medical device that could interfere with implant of the leadless pacemaker, such as an implanted inferior vena cava filter or mechanical tricuspid heart valve
  • Patient with Acute Coronary Syndrome (i.e. Acute Myocardial Infarction, Unstable Angina) within 40 days

For full inclusion and exclusion criteria, please visit https://clinicaltrials.gov/.

Find a Site

Study Site Locator

The MODULAR ATP Clinical Study will enroll patients at sites in North America and Europe. If you have a patient who may be a candidate, view the active site list to find contact information for a study physician near you.


Learn about the MODULAR ATP Clinical Study design, primary effectiveness and safety endpoints, timelines and more.

mCRM Technology

mCRM Technology

Discover how a modular approach to ICD therapy may reduce the risks of TV leads while providing pacing if needed.

Pre-Clinical Data

Pre-Clinical Data

See the pre-clinical data evaluating the use of modular CRM technology in animal subjects.