Late-Breaking Science - Scientific Sessions 2021

2021 Late-Breaking Science

Submission is now closed.

2021 LBS Guidelines (PDF)

If you have questions relating to LBS submissions, please reach out to

LBS Embargo Policy

AHA Embargo Policies:

Clinical trial results are prohibited from release until date and time of AHA designated embargo time. For late-breaking science and featured science the embargo time is the date and time of presentation at Scientific Sessions 2021.  Clinical trial sponsors must comply with embargo guidelines established by the American Heart Association.

You are prohibited from sharing written embargoed information with anyone outside of the AHA with the exception of journal manuscript submission. Important Note: Industry announcements required by the SEC (Security Exchange Commission) must be approved by AHA prior to release and any level of information released without approval will be considered an embargo break. However, you may conduct one-on-one embargoed media interviews as long as the reporter agrees to abide by the embargo policy. Failure to honor embargo policies will result in the trial being withdrawn on site and barred from presentation.  Failure to honor this embargo policy may also jeopardize future acceptance of clinical trials and presentation at Scientific Sessions. Therefore, it is essential to recognize that presentations at unofficial satellite meetings or unofficial press conferences before the scheduled AHA embargoed media briefings are not allowed.  This embargo policy will be strictly enforced. Please reach out to Mary Lu Hare with questions.