AMYLOIDOSIS

Understanding ATTR Amyloidosis

Transthyretin-mediated (ATTR) amyloidosis is a rapidly progressive, debilitating disease caused by misfolded transthyretin (TTR) protein, which accumulates as amyloid deposits in various parts of the body, including the nerves, heart and digestive system. There are two different types of ATTR amyloidosis – hereditary ATTR (hATTR) amyloidosis, caused by a TTR gene variant, and wild-type ATTR (wtATTR) amyloidosis, which occurs without a TTR gene variant.

hATTR Amyloidosis At-A-Glance

Affects ~50,000 people worldwide, though many people remain undiagnosed or misdiagnosed.

Is an autosomal dominant disease, meaning it can be inherited from one parent.

Caused by one of 120+ TTR gene variants, some more common in those of Portuguese, Swedish, Japanese, African and Irish descent.

hATTR Amyloidosis Inside The Body

hATTR amyloidosis is an inherited, progressive disease caused by a
variant in the TTR gene.

This variant causes the TTR protein—which is made primarily in the liver and carries vitamin A—to misfold.

The misfolded TTR protein collects as amyloid deposits throughout the body, including the nerves, heart and digestive system.

These amyloid deposits accumulate over time and cause symptoms of the disease.

What Are The Symptoms of hATTR Amyloidosis?

There are many different symptoms of hATTR amyloidosis, and they can affect several parts of the body, including the nerves, heart and digestive system.

Nerve damage that affects sensation, movement, strength, the digestive system and other bodily functions may be referred to as polyneuropathy.

This is not a complete list of symptoms that may be experienced in patients with hATTR amyloidosis. Each patient has a different experience and may not experience all of these symptoms, or may not experience them at the same time. Symptoms of hATTR amyloidosis may worsen over time. Talk to your doctor if you think you are experiencing symptoms of hATTR amyloidosis.