DALLAS - March 23, 2026 (NEWMEDIAWIRE) - Transthyretin amyloid cardiomyopathy, or ATTR‑CM, is a serious and often underdiagnosed condition caused by abnormal protein buildup that prevents the left ventricle from relaxing and filling properly, impairing the heart’s ability to pump blood. When left untreated, the disease can lead to heart failure and significantly shorten life expectancy.

To overcome gaps in how this condition is identified and treated, the American Heart Association, a relentless force changing the future of health for everyone everywhere, has launched a nationwide effort to strengthen the system of care for people living with ATTR-CM. The quality improvement initiative, financially supported by Alnylam, is designed to improve early diagnosis and coordination of care, ultimately enhancing the patient experience.

Early recognition and diagnosis of ATTR-CM is critical, as timely care gives patients access to treatments that can extend survival, preserve physical function and maintain quality of life. As awareness of ATTR-CM grows and treatment options continue to advance, patients increasingly need coordinated, specialist-led care. However, building and sustaining these multidisciplinary systems remains challenging for many health care centers.

“ATTR-CM is a life-threatening condition that is too often recognized late, when current disease modifying therapy is less effective,” said Mat Maurer, M.D., volunteer member of the American Heart Association’s ATTR Amyloidosis Strategic Advisory Group and professor of medicine at Columbia University Irving Medical Center, New York City. “By bringing multidisciplinary teams together to examine the full patient journey - from diagnosis through long-term management - this new initiative is helping identify practical, scalable approaches that can support earlier recognition, more coordinated care and better outcomes for people living with this disease.”

The three-year effort brings together a cohort of 10 multidisciplinary health care teams from across the country in a learning collaborative designed to better understand and improve ATTR-CM care pathways. The initiative focuses on the full patient journey - from diagnosis and referral through treatment and follow-up - with the goal of identifying successful, replicable models of care that can drive change nationwide.

Through shared learning and collaboration, participating sites will work to gain insights into current ATTR-CM practice pathways and amplify approaches that improve coordination of care, support earlier identification and strengthen long-term management for people living with ATTR-CM. By uncovering gaps in care and uniting experts across medical specialties, the initiative aims to help build a more integrated system that improves outcomes for patients nationwide.

“As awareness of ATTR-CM grows and treatment options continue to advance, it is essential that patients have access to well-coordinated, specialist-led care,” said Sameer Bansilal, M.D., M.S., cardiologist and vice president, Global TTR Medical lead, Alnylam Pharmaceuticals. “We are proud to support the American Heart Association’s new ATTR-CM initiative and its focus on understanding gaps in care, sharing successful models and strengthening systems that can improve the experience and outcomes for people affected by this devastating disease.”

For more information about the ATTR-CM initiative and to see a list of participating health care centers, visit heart.org/ATTRCMDiscovery.

Additional Resources:

• Multimedia is available on the right column of the release link.
• American Heart Association Support Network | Cardiomyopathy
• Transthyretin Amyloidosis (ATTR) for Professionals - Professional Heart Daily
• Extra-Cardiac Clues to Amyloidosis | Professional Education Hub
• Follow AHA/ASA news on X @HeartNews

About the American Heart Association

The American Heart Association is a relentless force for a world of longer, healthier lives. Dedicated to ensuring equitable health in all communities, the organization has been a leading source of health information for more than one hundred years. Supported by more than 35 million volunteers globally, we fund groundbreaking research, advocate for the public’s health, and provide critical resources to save and improve lives affected by cardiovascular disease and stroke. By driving breakthroughs and implementing proven solutions in science, policy, and care, we work tirelessly to advance health and transform lives every day. Connect with us on heart.org, Facebook, X or by calling 1-800-AHA-USA1.

For Media Inquiries: 214-706-1173

Michelle Rosenfeld: michelle.rosenfeld@heart.org

For Public Inquiries: 1-800-AHA-USA1 (242-8721)

heart.org and stroke.org

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