By Colin Kellaher

Johnson & Johnson on Tuesday said it has opened enrollment for "Heartline," a study in collaboration with Apple Inc. that will explore if a new iPhone app and heart-health features on the Apple Watch can help reduce the risk of stroke.

J&J said U.S. adults 65 years and older can join the study by downloading the Heartline Study app on an iPhone.

The company said the study will assess whether the Heartline app and the ECG app and irregular rhythm notification feature on the Apple Watch can reduce the likelihood of stroke and improve health outcomes with earlier detection of atrial fibrillation, a common form of irregular heart rhythm that is a leading cause of stroke.

J&J and Apple early last year announced plans to collaborate on the earlier detection of atrial fibrillation.

Write to Colin Kellaher at colin.kellaher@wsj.com

(END) Dow Jones Newswires

February 25, 2020 09:02 ET (14:02 GMT)

Copyright (c) 2020 Dow Jones & Company, Inc.
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