About this trial
The investigators of this registry aim to study the natural history, clinical presentation, characteristics, and imaging findings of patients diagnosed with ATTR amyloidosis in Thailand longitudinally. This will enable the investigators to study this disease in depth. With a better understanding, the investigators can aim to develop early screening programs for at-risk patients, raising awareness among non-cardiologists. As amyloid-specific therapies have now become available in Thailand, the findings of this registry can be helpful for epidemiological studies in Thailand.
Eligibility criteria
Qualifiers
Age > 18 years.
Positive scintigraphy by 99mTC-DPD [99mTC-3,3-diphosphono-1,2-propano-dicarboxylic acid] or 99mTC-PYP [Pyrophosphate] or 99mTC-HMDP [hydroxymethylene diphosphate] with Perugini grade ≥ 2 and/or H/CL (heart to contralateral lung) ratio > 1.5
Positive scintigraphy by 99mTC-DPD [99mTC-3,3-diphosphono-1,2-propano-dicarboxylic acid] or 99mTC-PYP [Pyrophosphate] or 99mTC-HMDP [hydroxymethylene diphosphate] with Perugini grade 1 and positive cardiac biopsy tissue confirmed which Congo red stain ≥ 4 sites
Positive scintigraphy by 99mTC-DPD [99mTC-3,3-diphosphono-1,2-propano-dicarboxylic acid] or 99mTC-PYP [Pyrophosphate] or 99mTC-HMDP [hydroxymethylene diphosphate] with Perugini grade 1 with positive non-cardiac biopsy tissue confirmed by Congo red stain
Disqualifiers
Diagnosed with amyloidosis caused by proteins other than transthyretin (light chain Amyloidosis, etc.)
Diagnosed with secondary amyloidosis
Trial design
Treatments tested in this trial
- No intervention
Treatment groups
Sponsors and collaborators
Mahidol University
Lead sponsor
Pfizer
Collaborator