Observational Study of Atrial Fibrillation with Tyrosine Kinase Inhibitors

This study is looking at how often atrial fibrillation (AF), an irregular heart rhythm, happens in people with certain blood cancers like chronic lymphocytic leukemia (CLL), Waldenstrom macroglobulinemia, mantle cell lymphoma, or marginal zone lymphoma. You could join if you are starting a cancer medicine called a Bruton's tyrosine kinase inhibitor (BTKI) or a non-BTKI therapy (like venetoclax-based treatments). Researchers will follow 500 people for up to 12 months to see if AF occurs. The study will also check if AF affects your cancer treatment or leads to other health problems like bleeding or stroke. The study's status is currently unclear.

Study design
This is an observational study involving 500 participants. It compares 400 people starting BTKI therapy to 100 people with similar blood cancers not taking a BTKI.
What's involved
Participants will wear a smartwatch and, later, a heart monitor patch to check for irregular heart rhythms over 12 months.
Compensation
Not stated in the trial record.
Follow-up
Participants will be followed for up to 12 months to measure the incidence of Atrial Fibrillation.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT07711327

Atrial Fibrillation Among Patients With Hematologic Malignancies on Tyrosine Kinase Inhibitor Therapy

Not Yet Recruiting
Not specifiedAges 18+Observational
Tina Baykaner
~500 participants
Updated 2026-07-17 on ClinicalTrials.gov

At a glance

Recruiting sites
0 of 3 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Incidence of Atrial Fibrillation
Measured over Up to 12 months
Atrial Fibrillation (AF)
Chronic Lymphocytic Leukemia
Waldenstrom Macroglobulinemia
Mantle Cell Lymphoma
Marginal Zone Lymphoma

NCT07711327

Where you'd take part

This study runs at 3 sites. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • City of Hope

    Duarte, Californiastudy coordinator listed

  • Stanford Health Care

    Stanford, Californiastudy coordinator listed

  • UC San Diego Health

    San Diego, Californiastudy coordinator listed

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

  • Tina Baykaner, MD · PRINCIPAL_INVESTIGATOR · Stanford University

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Eligibility criteria

Inclusion

Age greater than 18 years
Diagnosis of chronic lymphocytic leukemia (CLL), Waldenstrom macroglobulinemia (WM), mantle cell lymphoma (MCL), or marginal zone lymphoma (MZL)
New initiation of Bruton's tyrosine kinase inhibitor (BTKI) therapy or non-BTKI therapy (eg, venetoclax based) for management of hematologic malignancy

Exclusion

Prior exposure to BTKI therapy
History of persistent atrial fibrillation
  • Incidence of Atrial FibrillationUp to 12 months

    Incidence of new atrial fibrillation (AF) detected by smartwatch photoplethysmography with confirmatory ECG, and/or by 14-day ECG patch monitor, compared between participants on BTKI therapy and non-BTKI control participants.