Single-arm, Multi-center Study Evaluating the Acceptance and Feasibility of a Digital Remote Monitoring Tool Configured for Patients With ATTR-CM: ACO-Monitor

Transthyretin amyloid cardiomyopathy (ATTR-CM) is a heart condition caused by a protein called transthyretin (TTR) building up as amyloid in the heart muscle. This build-up makes the heart stiff and can lead to symptoms of heart failure, such as difficulty breathing, tiredness, swelling in the legs, and reduced ability to be physically active. ATTR-CM occurs in two forms: a hereditary (variant) type caused by changes in genes, and a wild-type form that usually develops with aging. People living with ATTR-CM are usually cared for at specialist centers, which may require them to travel long distances for appointments. Because of this, visits may be infrequent, and sometimes people only see their doctor once a year. This can make it harder to notice if the disease is getting worse or if there are problems with following their treatment plan. As a result, important changes in health may go unnoticed for several months, which can be risky. Remote monitoring offers a way for people living with ATTR-CM and their healthcare professionals to stay connected between clinic visits. Recent studies have shown that remote monitoring can help by making it easier to share health information, spot problems earlier, and support people to follow their treatment plans. This can lead to fewer hospital visits and better health outcomes. Luscii is a digital remote monitoring tool designed to help people living with ATTR-CM and their healthcare professionals stay connected between clinic visits. Luscii has two main parts: Luscii contact, a smartphone app that allows secure messaging and video calls, and Luscii vitals, a clinical software system that organizes health data and can alert the healthcare team if there are changes that need attention. Luscii vitals is a CE-marked medical device used within its approved purpose and does not replace a doctor's judgement. By making it easier to communicate and share information, Luscii aims to support earlier detection of problems, better manage