NCT07196839Recruiting
Determining the Association of TTR Stabilizing Therapy With Circulating TTR Amyloid Aggregates Over Time in Patients With ATTR-CM: Longitudinal Biomarker Study
Source: ClinicalTrials.gov · Last updated 7 Jan 2026
Brief summary (registry, in English)
The objective of this study is to determine the association of clinically prescribed, on-label, TTR stabilizing therapy (e.g. tafamidis or acoramidis) with levels of circulating transthyretin amyloid aggregates (TAAs, a surrogate for amyloid disease activity) measured serially over time in patients with transthyretin cardiac amyloidosis (ATTR-CA). To accomplish this objective, the hypothesis that TTR stabilizing therapy will be associated lower circulating TAAs over time will be tested. Completion of this study will advance the understanding of the influence of ATTR-CA treatments on circulating evidence of amyloidosis and justify the role of blood testing to monitor treatment response in patients with ATTR-CA.
- Status (registry)
- Recruiting
- Study type
- Observational
- Enrollment
- 50 (estimated)
- First submitted
- 19 Sept 2025
- Start date
- 31 Dec 2025
- Primary completion date
- 31 Dec 2026
- Lead sponsor
- University of Texas Southwestern Medical Center
- Diseases
- Amyloidosis
- NCT number
- NCT07196839
What you commit to
- Study type: Observational
- Planned participants: 50
- From 31 Dec 2025 to the primary completion date, 31 Dec 2026
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Liver transplantation
Other illness
- History of light-chain cardiac amyloidosis
- Cardiac transplantation
Other
- Other known causes of cardiomyopathy
- Has taken patisiran in the past 90 days, or inotersen in the past 180 days, has ever taken vutrisiran, or is participating in a clinical trial for ATTR treatments
- Estimated glomerular filtration rate ≤30 mL/min/1.73 m2
- Anticipated gaps in ATTR-CA treatment for 3 months after enrollment
Who the study is looking for
- Men and women ages 30-80 who have symptomatic ATTR-CA as determined by a history of HF (this will be assessed by study personnel and defined as : 1) history of hospitalization within the previous 12 months for management of HF; 2) an elevated B-type natriuretic peptide level ≥100 pg/mL or NT-proBNP ≥360 pg/mL within the previous 12 months; or 3) a clinical diagnosis of HF from a treating clinician)
- ATTR-CA previously diagnosed histologically by amyloid staining and tissue typing with immunohistochemistry or mass spectrometry or by bone scintigraphy in without abnormal M-protein
- TTR gene sequencing confirming the TTR genotype has resulted or is pending
- Enrollment will be stratified by n/N=30/50 starting on-label TTR-stabilizing therapy (e.g. tafamidis) within 5 days after enrollment or by n/N=20/50 of those currently taking TTR-stabilizing therapy
Age in the registry: 30 years to 80 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| UT Southwestern Medical Center Coordinator of this site? Confirm its status | Dallas | United States | Recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.