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Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 4INTERVENTIONAL

Real-Life Clinical Efficacy of Acoramidis in Participants With ATTR-CM and Association With Cardiac Biomarkers

A Multicenter, Open-Label, Single Arm, Post-Marketing Clinical Study to Evaluate the Therapeutic Effects of Acoramidis Hydrochlorideon Cardiac Biomarkers and Current Clinical Features in Patients With Transthyretin-type Cardiac Amyloidosis: The CARE ATTR Study

Real-Life Clinical Efficacy of Acoramidis in Participants With ATTR-CM and Association With Cardiac Biomarkers (NCT07306949) is a Phase 4 interventional studying Transthyretin-type Cardiac Amyloidosis, sponsored by Alexion Pharmaceuticals, Inc.. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

The purpose of this study is to confirm that the treatment with acoramidis prevents the deterioration of the ATTR-CM disease progression index and that these indexes are surrogate markers of disease progression.

What Stage of Research Is This?

Phase 4 studies happen after a treatment has been approved by the FDA. They monitor long-term safety, real-world effectiveness, and any rare side effects that only emerge in larger populations over longer periods. Phase 4 results sometimes lead to label changes, additional warnings, or — rarely — withdrawal of approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

Target enrollment of 200 participants puts this in the typical range for a Phase 2-style efficacy study or a moderate Phase 3 trial in a focused Transthyretin-type Cardiac Amyloidosis subpopulation. At this scale, the study has enough statistical power to detect a clear treatment effect but is not the largest cohort in the field.

Who May Be Eligible (Plain English)

Who May Qualify: - Treatment history of ATTR-CM is one of the following: - Naive participants: newly diagnosed with ATTR-CM and no prior treatment with drugs for ATTR-CM - Switch participants: Participants who are using tafamidis, a TTR stabilizer, as treatment for ATTR-CM and who, in the judgment of the post-marketing clinical trial investigator (co-principal investigator), can be expected to benefit from switching to acoramidis. - Naive participants must meet the following requirements: 1. History of hospitalization for heart failure or heart failure symptoms requiring treatment, including diuretics 2. Echocardiographic end-diastolic ventricular septal thickness greater than 12 millimeters (mm) 3. Confirmed diagnosis of ATTR-CM (wild type or mutant) by one of the following diagnostic methods 1. Tissue biopsy shows amyloid deposition and TTR precursor protein is identified by immunohistochemistry or mass spectrometry. 2. Bone scintigraphy showing strong accumulation \*\* (Perugini score ≥ 2) consistent with myocardium and no M protein, negating the possibility of AL amyloidosis Who Should NOT Join This Trial: - Have confirmed diagnosis of AL amyloidosis - Switch participants: prior treatment with gene silencing agents (pachysilane sodium, butrisilane sodium) as treatment for ATTR-CM (including when specifically scheduled to start treatment with a gene silencing agent) - Likelihood of receiving a heart transplant within 1 year from the time screening begins - Hypersensitivity to acoramidis, its metabolites, or additives in the formulation has been confirmed. - Pregnant or lactating women - Has a clinically significant medical condition, an abnormal laboratory test result, or a condition that may jeopardize the safety of the study participant, increase the risk of participation in the post-marketing clinical trial, or affect the study - Participating in an interventional study other than this study, including a clinical trial ...See full criteria on ClinicalTrials.gov Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Inclusion Criteria: * Treatment history of ATTR-CM is one of the following: * Naive participants: newly diagnosed with ATTR-CM and no prior treatment with drugs for ATTR-CM * Switch participants: Participants who are using tafamidis, a TTR stabilizer, as treatment for ATTR-CM and who, in the judgment of the post-marketing clinical trial investigator (co-principal investigator), can be expected to benefit from switching to acoramidis. * Naive participants must meet the following requirements: 1. History of hospitalization for heart failure or heart failure symptoms requiring treatment, including diuretics 2. Echocardiographic end-diastolic ventricular septal thickness greater than 12 millimeters (mm) 3. Confirmed diagnosis of ATTR-CM (wild type or mutant) by one of the following diagnostic methods 1. Tissue biopsy shows amyloid deposition and TTR precursor protein is identified by immunohistochemistry or mass spectrometry. 2. Bone scintigraphy showing strong accumulation \*\* (Perugini score ≥ 2) consistent with myocardium and no M protein, negating the possibility of AL amyloidosis Exclusion Criteria: * Have confirmed diagnosis of AL amyloidosis * Switch participants: prior treatment with gene silencing agents (pachysilane sodium, butrisilane sodium) as treatment for ATTR-CM (including when specifically scheduled to start treatment with a gene silencing agent) * Likelihood of receiving a heart transplant within 1 year from the time screening begins * Hypersensitivity to acoramidis, its metabolites, or additives in the formulation has been confirmed. * Pregnant or lactating women * Has a clinically significant medical condition, an abnormal laboratory test result, or a condition that may jeopardize the safety of the study participant, increase the risk of participation in the post-marketing clinical trial, or affect the study * Participating in an interventional study other than this study, including a clinical trial * In the opinion of the responsible (sub)physician for the post-marketing clinical trial, has a history of drug abuse, alcoholism, or psychiatric disorder that would preclude compliance with this Post-Marketing Clinical Study Protocol

Treatments Being Tested

DRUG

Acoramidis

Participants will receive acoramidis tablets orally.

Locations (16)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

Research Site
Bunkyō City, Japan
Research Site
Bunkyō City, Japan
Research Site
Kumamoto, Japan
Research Site
Kurume-shi, Japan
Research Site
Kyoto, Japan
Research Site
Mitaka-shi, Japan
Research Site
Nagoya, Japan
Research Site
Nankoku-shi, Japan
Research Site
Okayama, Japan
Research Site
Ōtsu, Japan
Research Site
Sagamihara-shi, Japan
Research Site
Sapporo, Japan
Research Site
Shinjuku-ku, Japan
Research Site
Suita-shi, Japan
Research Site
Tsu, Japan
Research Site
Yufu-shi, Japan

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT07306949), the sponsor (Alexion Pharmaceuticals, Inc.), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT07306949 clinical trial studying?

The purpose of this study is to confirm that the treatment with acoramidis prevents the deterioration of the ATTR-CM disease progression index and that these indexes are surrogate markers of disease progression. The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT07306949?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT07306949?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT07306949. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT07306949. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.