Monitoring heart rhythms in patients starting BTK inhibitors

Implanted Loop Recorders (ILR) for the Detection and Management of Arrhythmia in Patients Treated With Bruton Tyrosine Kinase (BTK) Inhibitors

Not applicable Interventional Northwell Health · NCT05643235

This study is testing how well a heart monitor can detect new heart rhythm problems in patients starting treatment with BTK inhibitors.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment50 (estimated)
Ages18 Years and up
SexAll
SponsorNorthwell Health Academic / other
Drugs / interventionsibrutinib, acalabrutinib, zanubrutinib, pirtobrutinib
Locations1 site (New Hyde Park, New York)
Trial IDNCT05643235 on ClinicalTrials.gov

What this trial studies

This study enrolls patients who are beginning treatment with Bruton Tyrosine Kinase (BTK) inhibitors and have no prior history of arrhythmia. Participants will have a Medtronic LINQ-2 insertable cardiac monitor (ILR) implanted to continuously monitor for new onset atrial fibrillation and other arrhythmias. The study aims to collect data on the incidence of these arrhythmias and the responses to detected episodes over a period of up to 60 months. The approach is prospective and non-blinded, focusing on a single arm of patients receiving BTK therapy.

Who should consider this trial

Good fit: Ideal candidates are adults over 18 who are starting BTK inhibitors for conditions like Chronic Lymphocytic Leukemia and are willing to have a cardiac monitor implanted.

Not a fit: Patients with a history of documented arrhythmia or those with certain recent cardiovascular events may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve the management of arrhythmias in patients undergoing BTK inhibitor therapy.

How similar studies have performed: While similar monitoring approaches have been used, this specific application in the context of BTK inhibitors is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* \>18yo
* Willing to sign and date consent form,
* Willing to be remotely monitored
* Initiating BTK inhibitor for approved condition (i.e. CLL, Waldenstrom's, etc)
* Willing to have Medtronic cardiac monitor inserted to allow at minimum 24 hours continuous monitoring prior to initiating BTK inhibitor

Exclusion Criteria:

* Documented AF/VA in past 12 months
* Cerebral Vascular Accident (CVA) or Transient Ischemic Attack (TIA) in past year
* Has current implanted pulse generator, defibrillator, pacemaker, or resynchronization device
* heart surgery within past 90 days
* Myocardial Infarction within past 90 days
* Patient is taking an anti-arrhythmic or anticoagulant
* has concomitant condition that precludes safe participation in study (substance abuse, etc)
* Enrollment in separate study that could confound results of this study

Where this trial is running

New Hyde Park, New York

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Atrial FibrillationSupraventricular ArrhythmiaVentricular Arrhythmias and Cardiac ArrestChronic Lymphocytic LeukemiaChronic Lymphocytic Leukemia/Small Lymphocytic LymphomaBruton tyrosine kinaseMantle Cell LymphomaWaldenstrom's macroglobulinemia
Last reviewed 2026-06-13 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.