Cardiac Magnetic Resonance and Echocardiography Study With Acoramidis
ASCEND-ATTR
An Open-Label Study to Investigate the Long-Term Effects of Acoramidis on Cardiac Function, Structure and Cardiac Amyloid Burden in Participants With Transthyretin Amyloid Cardiomyopathy (ATTR-CM)
3 other identifiers
interventional
150
1 country
1
Brief Summary
The study aims to evaluate the effect of acoramidis on cardiac functional and structural improvement in participants with ATTR-CM.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_4
Started Jul 2026
Longer than P75 for phase_4
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 1, 2026
CompletedFirst Submitted
Initial submission to the registry
July 6, 2026
CompletedFirst Posted
Study publicly available on registry
July 10, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2030
ExpectedStudy Completion
Last participant's last visit for all outcomes
November 1, 2030
July 29, 2026
July 1, 2026
4.1 years
July 6, 2026
July 27, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
To assess the effect of acoramidis on cardiac function improvement by CMR in participants with ATTR-CM.
Change from baseline in left ventricular ejection fraction (LVEF) or left ventricular stroke volume index (LVSVi) at Month 36.
Month 36
Secondary Outcomes (5)
To assess the effect of acoramidis on cardiac function improvement or stabilization by CMR in participants with ATTR-CM.
Month 36
To assess the effect of acoramidis on cardiac function stabilization by CMR in participants with ATTR-CM.
Month 36
To evaluate the effect of treatment with acoramidis on individual parameters of left ventricular systolic function by CMR in participants with ATTR-CM
Month 36
To evaluate the effect of acoramidis on cardiac structure by CMR in participants with ATTR-CM
Month 36
To evaluate the effect of treatment with acoramidis on cardiac amyloid burden by CMR in participants with ATTR-CM
Month 36
Other Outcomes (1)
Exploratory Outcome Measure
At Month 12, 24 and 36
Study Arms (1)
Acoramidis (AG10)
EXPERIMENTALOpen-label study where all participants will receive acoramidis (AG10) during the study
Interventions
Study drug is defined as acoramidis 712 mg (equivalent to 800 mg acoramidis hydrochloride) taken orally twice daily for 36 months of open label treatment.
Eligibility Criteria
You may qualify if:
- Participants aged 18 to 80
- Confirmed diagnosis of ATTR-CM requiring targeted therapy
- At screening: New York Heart Association (NYHA) Class I/II; estimated glomerular filtration rate (eGFR) ≥40 mL/min/1.73m2; left ventricular ejection fraction (LVEF) \>35%; left ventricular (LV) wall thickness ≥12 mm.
- Heart failure condition has been clinically stable for at least 6 weeks prior to screening.
You may not qualify if:
- Current or planned implantation of a cardiac implantable electronic device (eg, pacemaker, implantable cardiac defibrillator).
- Acute myocardial infarction, acute coronary syndrome or coronary revascularization, or experienced stroke or transient ischemic attack within 90 days prior to screening.
- Hemodynamic instability.
- Likely to undergo heart transplantation within 12 months from screening.
- Confirmed diagnosis of AL amyloidosis at screening.
- At screening: NYHA Class III/IV; National Amyloidosis Center (NAC) Stage 3.
- Prior or current treatment with acoramidis.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Washington University in St. Louis
St Louis, Missouri, 63110, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 6, 2026
First Posted
July 10, 2026
Study Start
July 1, 2026
Primary Completion (Estimated)
August 1, 2030
Study Completion (Estimated)
November 1, 2030
Last Updated
July 29, 2026
Record last verified: 2026-07