RT Journal Article T1 Clinical and genetic profile of patients enrolled in the Transthyretin Amyloidosis Outcomes Survey (THAOS): 14-year update. A1 Dispenzieri, Angela A1 Coelho, Teresa A1 Conceição, Isabel A1 Waddington-Cruz, Márcia A1 Wixner, Jonas A1 Kristen, Arnt V A1 Rapezzi, Claudio A1 Planté-Bordeneuve, Violaine A1 Gonzalez-Moreno, Juan A1 Maurer, Mathew S A1 Grogan, Martha A1 Chapman, Doug A1 Amass, Leslie A1 THAOS investigators, K1 Amyloidosis K1 Cardiomyopathy K1 Polyneuropathy K1 Registry K1 Transthyretin AB Transthyretin amyloidosis (ATTR amyloidosis) is a rare, life-threatening disease caused by the accumulation of variant or wild-type (ATTRwt amyloidosis) transthyretin amyloid fibrils in the heart, peripheral nerves, and other tissues and organs. Established in 2007, the Transthyretin Amyloidosis Outcomes Survey (THAOS) is the largest ongoing, global, longitudinal observational study of patients with ATTR amyloidosis, including both inherited and wild-type disease, and asymptomatic carriers of pathogenic TTR mutations. This descriptive analysis examines baseline characteristics of symptomatic patients and asymptomatic gene carriers enrolled in THAOS since its inception in 2007 (data cutoff: August 1, 2021). This analysis included 3779 symptomatic patients and 1830 asymptomatic gene carriers. Symptomatic patients were predominantly male (71.4%) and had a mean (standard deviation [SD]) age of symptom onset of 56.3 (17.8) years. Val30Met was the most common genotype in symptomatic patients in South America (80.9%), Europe (55.4%), and Asia (50.5%), and more patients had early- versus late-onset disease in these regions. The majority of symptomatic patients in North America (58.8%) had ATTRwt amyloidosis. The overall distribution of phenotypes in symptomatic patients was predominantly cardiac (40.7%), predominantly neurologic (40.1%), mixed (16.6%), and no phenotype (2.5%). In asymptomatic gene carriers, mean (SD) age at enrollment was 42.4 (15.7) years, 42.4% were male, and 73.2% carried the Val30Met mutation. This 14-year global overview of THAOS in over 5000 patients represents the largest analysis of ATTR amyloidosis to date and highlights the genotypic and phenotypic heterogeneity of the disease. gov Identifier: NCT00628745. YR 2022 FD 2022-06-18 LK http://hdl.handle.net/10668/20339 UL http://hdl.handle.net/10668/20339 LA en DS RISalud RD Apr 9, 2025