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Cardiac AmyloidosisPhase 3REVEALNCT06788535

REVEAL - Research With I-124 EVuzamitide to Elucidate Cardiac AmyLoidosis

A Phase 3 study testing I-124 evuzamitide in people with Cardiac Amyloidosis, run by Sharmila Dorbala at 20 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this multicenter, open-label, single-arm, single-dose study is to assess the sensitivity and specificity of I-124 evuzamitide for the diagnosis of cardiac amyloidosis compared to current clinical standards for diagnosis of cardiac amyloidosis. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Cardiac Amyloidosis
What is being tested?
I-124 evuzamitide
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
204 participants
Where
20 sitesUnited States
Study dates
14 Jan 2025to 9 Apr 2026
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Understands the study procedures and can give signed informed consent, which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.
  • Male or female ≥18 years of age.
  • Is suspected of having cardiac amyloidosis and is undergoing or will undergo a diagnostic evaluation for cardiac amyloidosis (e.g., echocardiogram [ECHO], cardiac magnetic resonance imaging [CMR], bone-avid tracer cardiac single-photon emission computerized tomography (SPECT), extracardiac biopsy, or endomyocardial biopsy [EMB]). Participants may be enrolled before or during their diagnostic evaluation for cardiac amyloidosis.
  • Able to undergo PET/CT imaging as part of the study, including ability to lie supine for approximately 1 hour.
  • For women of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive methods that result in a failure rate of <1% per year during the treatment period and for at least 30 days after administration of I-124 evuzamitide.
  • For men: agreement to remain abstinent or use contraceptive measures and agreement to refrain from donating sperm during the treatment period and for at least 120 days after the last dose of study intervention.

Who cannot join

  • Established diagnosis of cardiac amyloidosis.
  • Established diagnosis of systemic amyloidosis with known organ involvement (e.g., renal AL or ATTR peripheral neuropathy). Participants who are amyloid positive only from peripheral tissue, such as abdominal fat, carpal tunnel tissue, or laminectomy tissue, are allowed as long as they do not have other known organ involvement.
  • Receiving therapy with an approved treatment (e.g., tafamadis) or in a clinical trial for treatment for ATTR cardiac amyloidosis at time of enrollment. For AL and ATTR amyloidosis: Patients may enter the screening period of a clinical trial for treatment after the ICF is signed and they are enrolled in this trial, but they may not receive an experimental therapy until after the Day 30 safety follow-up visit in this trial.
  • Is pregnant or breast-feeding.
  • Is mentally or legally incapacitated, has significant emotional problems at the time of the study, or has a history of psychosis.
  • Has a known allergy to KI.
Show all 13Show fewer
  • Receiving hemodialysis or peritoneal dialysis.
  • Estimated glomerular filtration rate (eGFR) less than 15 mL/min/1.73 m^2.
  • Myocardial infarction within 3 months of screening.
  • Has severe claustrophobia or any condition, medical or otherwise, that would prevent completion of the study assessments.
  • Has any illness that, in the opinion of the Investigator, might confound the results of the study or pose additional risk to the participant.
  • Has received heparin or heparin analogs (e.g., enoxaparin, dalteparin, fondaparinux) within 7 days prior to I-124 evuzamitide administration.
  • Known uncorrected thyroid disorders (other than mild elevation of thyroid stimulating hormone with normal thyroxine [T4]).

Trial locations and contacts

20 sites in 1 country.

20 sites in 1 country

United States20 sites
  • Brigham and Women's Hospital

    Boston, Massachusetts, 02115

  • Medical University of South Carolina

    Charleston, South Carolina, 29425

  • Northwestern University

    Chicago, Illinois, 60611

  • Cook County Health

    Chicago, Illinois, 60612

  • Cleveland Clinic

    Cleveland, Ohio, 44195

  • City of Hope - Duarte

    Duarte, California, 91010

  • Duke University

    Durham, North Carolina, 27710

  • Cone Health

    Greensboro, North Carolina, 27401

  • Houston Methodist

    Houston, Texas, 77030

  • St. Lukes (CVIT) Saint Luke's Health System

    Kansas City, Missouri, 64111

  • Medical College of Wisconsin

    Milwaukee, Wisconsin, 53226

  • Rutgers

    New Brunswick, New Jersey, 08901

  • Yale Cardiovascular Medicine

    New Haven, Connecticut, 06520

  • Columbia University

    New York, New York, 10032

  • Oregon Health and Science University

    Portland, Oregon, 97239

  • Mayo Clinic

    Rochester, Minnesota, 55905

  • University of California

    San Francisco, California, 94143

  • Mayo Clinic

    Scottsdale, Arizona, 85259

  • Washington University of St. Louis

    St Louis, Missouri, 63110

  • Cleveland Clinic

    Weston, Florida, 33331

Other trials in United States

About this study

Official title: A Phase 3, Open-Label, Multicenter Study of I-124 Evuzamitide as an Imaging Agent for the Diagnosis of Cardiac Amyloidosis Using Positron Emission Tomography Computed Tomography (PET/CT)

The purpose of this multicenter, open-label, single-arm, single-dose study is to assess the sensitivity and specificity of I-124 evuzamitide for the diagnosis of cardiac amyloidosis compared to current clinical standards for diagnosis of cardiac amyloidosis. Participants will receive a positron emission tomography computed tomography (PET/CT) scan 4 hours (± 60 minutes) after administration of I-124 evuzamitide. The primary study hypotheses are that the sensitivity and specificity of I-124 evuzamitide PET/CT imaging of cardiac amyloidosis will be greater than 65% and 55%, respectively, in participants with suspected cardiac amyloidosis.

Read the detailed description

This multicenter, open-label, single-arm, single-dose study will assess the sensitivity and specificity of I-124 evuzamitide for the diagnosis of cardiac amyloidosis compared to current clinical standards for diagnosis of cardiac amyloidosis.

The study consists of (i) up to a 45-day screening period, (ii) a treatment emergent period that consists of a 1-day treatment visit and safety follow-up procedures through Day 30 ± 5 days, and (iii) a Standard of Truth (SoT) Diagnostic Evaluation Period that extends from the screening period (Day -45) until either the last cardiac amyloidosis diagnostic test is completed or through Day 60, whichever is earlier. Thus, the total participant duration is up to approximately 3.5 months. The study will enroll approximately 200 participants with suspected cardiac amyloidosis at approximately 20 United States clinical sites.

I-124 evuzamitide is the only study intervention; neither reference therapy nor placebo will be administered. Potassium iodide (KI) will be given orally for 3 days beginning >30 minutes prior to intravenous administration of study intervention. PET/CT scans will be obtained approximately 4 hours after administration of study intervention.

Sensitivity and specificity of I-124 evuzamitide will be determined using the classification of participants based on visual evaluation of the PET/CT images and cardiac amyloid disease status based on the clinical truth standard. An independent Clinical Adjudication Committee with expertise in cardiology, amyloidosis, and/or cardiac imaging will review the information obtained during the diagnostic evaluation (e.g., clinical history and laboratories, EMB, extracardiac biopsy, ECHOs, CMR, and bone-avid tracer cardiac SPECT) to determine if the data support a diagnosis of cardiac amyloidosis. The clinical truth standard will be based on all available information provided to the Clinical Adjudication Committee by the diagnostic evaluation. Three independent readers who are blinded to all clinical data will review deidentified PET/CT images for the presence/absence of cardiac uptake of I-124 evuzamitide.

Being tested
I-124 evuzamitide
Keywords
Amyloid Light Chain (AL), Cardiac Amyloidosis, Amyloidosis, Amyloid Transthyretin (ATTR), Transthyretin (TTR), REVEAL, PET Imaging
Medical subject headings
Amyloid Neuropathies, Familial, Amyloidosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • I-124 evuzamitideDrug

    Also called AT-01

    A single dose of 1 mCi (± 10%) I-124 evuzamitide administered intravenously.

Study groups in NCT06788535
Study groupRoleWhat they receive
Single dose, Open labelExperimentalOpen label use of I124-evuzamitide to diagnose cardiac amyloidosis.
Receives: Drug: I-124 evuzamitide

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To evaluate the efficacy (sensitivity) of I-124 evuzamitide for diagnosing cardiac amyloidosis

    Assessment of the sensitivity of PET/CT imaging with I-124 evuzamitide for the diagnosis of cardiac amyloidosis based on visual scan interpretation.

    Measured: Up to 60 days after administration of I-124 evuzamitide

  2. To evaluate the efficacy (specificity) of I-124 evuzamitide for diagnosing cardiac amyloidosis

    Assessment of specificity of PET/CT imaging with I-124 evuzamitide for the diagnosis of cardiac amyloidosis based on visual scan interpretation.

    Measured: Up to 60 days after administration of I-124 evuzamitide

Secondary outcomes (6)
  1. To evaluate the efficacy (sensitivity) of I-124 evuzamitide for diagnosing cardiac ATTR amyloidosis

    The sensitivity of PET/CT imaging with I-124 evuzamitide for the diagnosis of cardiac ATTR amyloidosis based on visual scan interpretation.

    Measured: Up to 60 days after administration of I-124 evuzamitide

  2. To evaluate the efficacy (specificity) of I-124 evuzamitide for diagnosing cardiac ATTR amyloidosis

    The specificity of PET/CT imaging with I-124 evuzamitide for the diagnosis of cardiac ATTR amyloidosis based on visual scan interpretation

    Measured: Up to 60 days after administration of I-124 evuzamitide

  3. To evaluate the efficacy (sensitivity) of I-124 evuzamitide for diagnosing cardiac AL amyloidosis

    The sensitivity of PET/CT imaging with I-124 evuzamitide for the diagnosis of cardiac AL amyloidosis based on visual scan interpretation

    Measured: Up to 60 days after administration of I-124 evuzamitide

  4. To evaluate the efficacy (specificity) of I-124 evuzamitide for diagnosing cardiac AL amyloidosis

    The specificity of PET/CT imaging with I-124 evuzamitide for the diagnosis of cardiac AL amyloidosis based on visual scan interpretation

    Measured: Up to 60 days after administration of I-124 evuzamitide

  5. To evaluate the safety (treatment-emergent adverse events [AEs]) of a single intravenous administration of I-124 evuzamitide

    Incidence of treatment-emergent AEs from Day 1 to Day 30

    Measured: Up to 30 days after administration of I-124 evuzamitide

  6. To evaluate the safety (clinical laboratory values) of a single intravenous administration of I-124 evuzamitide

    Change from Baseline in clinical laboratory values:

    Hematology, Serum Chemistry, Biomarker Assays, Pregnancy Testing

    Measured: Up to 30 days after administration of I-124 evuzamitide

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Jan 2025
  2. Study start14 Jan 2025
  3. Primary completion8 Apr 2026
  4. Study completion9 Apr 2026

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
204 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06788535
Sponsor's protocol ID
2024P002136
Acronym
REVEAL
Status last verified
Apr 2026
First submitted
23 Dec 2024
Last updated
30 Apr 2026
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Wall JS, Martin EB, Lands R, Ramchandren R, Stuckey A, Heidel RE, Whittle B, Powell D, Richey T, Williams AD, Foster JS, Guthrie S, Kennel SJ. Cardiac Amyloid Detection by PET/CT Imaging of Iodine (124I) Evuzamitide (124I-p5+14): A Phase 1/2 Study. JACC Cardiovasc Imaging. 2023 Nov;16(11):1433-1448. doi: 10.1016/j.jcmg.2023.08.009.

    PubMed 37940323
  • Clerc OF, Cuddy SAM, Robertson M, Vijayakumar S, Neri JC, Chemburkar V, Kijewski MF, Di Carli MF, Bianchi G, Falk RH, Dorbala S. Cardiac Amyloid Quantification Using 124I-Evuzamitide (124I-P5+14) Versus 18F-Florbetapir: A Pilot PET/CT Study. JACC Cardiovasc Imaging. 2023 Nov;16(11):1419-1432. doi: 10.1016/j.jcmg.2023.07.007. Epub 2023 Sep 6.

    PubMed 37676210
  • Dorbala S, Maurer MS, Cuddy SAM, AbouEzzeddine OF, Di Carli MF, Dilsizian V, Dispenzieri A, Gallegos-Kattan C, Guthrie S, Mangal B, Hanna M, Khouri MG, Malhotra S, Mitchell JD, Narra RK, Orlandi C, Rosenthal JL, Ruberg FL, Smiley D, Sperry BW, Udelson JE, Weinberg RL, Wall JS, Masri A; REVEAL Study Investigators. 124I-Evuzamitide Positron Emission Tomography/Computed Tomography for Diagnosing Cardiac Amyloidosis: The REVEAL Nonrandomized Clinical Trial. JAMA. 2026 Aug 30. doi: 10.1001/jama.2026.17361. Online ahead of print.

    PubMed 42669054

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing I-124 evuzamitide in people with Cardiac Amyloidosis, run by Sharmila Dorbala at 20 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 30 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 20 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To evaluate the efficacy (sensitivity) of I-124 evuzamitide for diagnosing cardiac amyloidosis (time frame: Up to 60 days after administration of I-124 evuzamitide). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06788535, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Apr 2026; AzTrials last refreshed its copy on 8 Nov 2026.

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