Thailand ATTR-CM Registry

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

105 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-07-30

Study Completion Date

2030-06-30

Brief Summary

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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.

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Detailed Description

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Conditions

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Transthyretin Amyloid Cardiomyopathy (ATTR-CM)

Study Design

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Observational Model Type

OTHER

Study Time Perspective

PROSPECTIVE

Study Groups

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ATTR Cardiomyopathy

Patients diagnosed with ATTR-CM (Transthyretin cardiomyopathy)

No intervention

Intervention Type OTHER

No intervention

Interventions

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No intervention

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Age \> 18 years.
* All patients diagnosed with ATTR-CM (Transthyretin cardiomyopathy) who have either symptomatic or asymptomatic must have evidence of cardiac involvement by echocardiogram as defined by left ventricle wall thickness of ≥ 12 mm and with at least one of the following criteria:
* 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
* Abnormalities on CMR (Cardiac MRI) \[Subendocardium LGE (late gadolinium enhancement) and/or elevated native T1 value and/or increased extracellular volume (ECV \> 0.4)\] with positive non-cardiac and/or cardiac tissue biopsy confirmed by Congo red stain