New drug may boost protein levels in heart disease patients
NCT ID NCT07298044
First seen Jun 24, 2026 · Last updated Sep 11, 2026 · Updated 5 times
Summary
This study tests whether switching from tafamidis to acoramidis can raise blood levels of transthyretin (TTR) in adults with transthyretin amyloid cardiomyopathy (ATTR-CM). The drug acoramidis stabilizes TTR to prevent harmful amyloid clumps that stiffen the heart. Researchers will measure TTR levels over 6 months in 50 participants who have already been on tafamidis. The goal is to see if acoramidis works better at keeping TTR stable.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- acoramidis (a drug that stabilizes the TTR protein to prevent amyloid buildup)
- What this could lead to
- If successful, this study could show that acoramidis raises TTR levels more than tafamidis, potentially offering a better option for managing ATTR-CM.
- What could go wrong
- This is a small, early-phase study with only 50 participants and no placebo group. It measures a lab marker (TTR level), not long-term heart outcomes, so benefits are uncertain.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 50 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2026
- Expected to finish
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Jul 2027
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 90 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Participants must be 18 to 90 years of age inclusive, at the time of signing the informed consent. * Diagnosis of ATTR-CM; disease defining examination, i.e., Single Photon Emission Computed Tomography (SPECT) or SPECT/Computed Tomography (CT) or biopsy, within 24 months prior to Visit 1 (V1). * Participants must currently be treated with tafamidis and have used tafamidis for at least the previous 3 months prior to V1 and have adhered to tafamidis therapy. * New York Heart Association (NYHA) class ≤ II at V1. * Estimate glomerular filtration rate (eGFR) ≥ 30 mL/min/1.73m\^2 at V1. * N-terminal pro-B-type Natriuretic Peptide (NT-proBNP) \> 300 and ≤ 7000 pg/mL at V1. Exclusion Criteria: * Prior liver or heart transplantation or planned within the next 12 months. * Current or planned use of ventricular assist device. * Active cancer or other disease that decreases the life expectancy to less than one year. * Heart failure due to ischemic heart disease. * Myocardial infarction, cardiovascular (CV) surgery, or unstable angina within the last 90 days prior to V1. * Confirmed diagnosis of light-chain amyloidosis. * Dialysis or severe renal impairment as reflected by Urinary Albumin Creatinine Ratio (UACR) \> 300 mg/g at V1. * Major surgery 90 days prior to V1. * Recent initiation of Sodium-Glucose-Cotransporter-2 inhibitors (SGLT2i) within 3 months before V1. * Initiation of treatment with a diuretic or increase in diuretic dose within 3 months before V1. * Treatment with calcium channel blockers (e.g., verapamil, diltiazem) or digitalis. * Recent CV hospitalization within 3 months before V1. * Known hypersensitivity to acoramidis or to any of the excipients. * A condition that, as judged by the investigator, would preclude compliance with the study protocol, such as a history of substance abuse, alcoholism, or a psychiatric condition. * Known or suspected liver disorder and bile secretion/flow (cholestasis, also history of it). * Abnormal liver function tests at V1, defined as ALT (GPT) or AST (GOT) ≥ 3 x ULN or total bilirubin ≥ 3 x ULN at V1.
Get updates
Get notified about this study
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
19 sites in 5 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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AZ St-Jan Brugge-Oostende A.V.
NOT_YET_RECRUITINGBruges, West Flanders, 8000, Belgium
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Azienda Ospedale-Università di Padova-UOC Cardiologia
RECRUITINGPadova, 35128, Italy
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Azienda Ospedaliera Dei Colli_Monaldi - Malattie Rare e Genetiche Cardiovascolari
NOT_YET_RECRUITINGNaples, 80131, Italy
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Azienda Ospedaliera Universitaria Senese - cardiologia
RECRUITINGSiena, 53100, Italy
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Azienda Ospedaliero-Universitaria Di Bologna IRCCS_Policlinico Sant'Orsola_Cardiologia
NOT_YET_RECRUITINGBologna, 40138, Italy
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Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII - Cardiologia 1
RECRUITINGBergamo, 24127, Italy
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Careggi University Hospital_cardio intensive care unit
NOT_YET_RECRUITINGFlorence, 50134, Italy
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Centro Cardiologico Monzino S.p.A. - Cardiologia Peri-Operatoria e Imaging Cardiovascolare
RECRUITINGMilan, 20138, Italy
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Fondazione IRCCS Policlinico San Matteo-SC Medicina Generale 2 - Centro Amiloidosi Sistemiche e Malattie ad Alta Complessità
NOT_YET_RECRUITINGPavia, 27100, Italy
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Fondazione Toscana Gabriele Monasterio_Pisa - Cardiologia e Medicina Cardiovascolare
RECRUITINGPisa, 56124, Italy
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Hôpital Erasme/Erasmus Ziekenhuis
NOT_YET_RECRUITINGBrussels, Brussels Capital, 1070, Belgium
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KVZ Kardiovaskulaeres Zentrum Darmstadt GmbH
NOT_YET_RECRUITINGDarmstadt, Hesse, 64287, Germany
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Klinik Favoriten - 5.Medizinische Abteilung-Kardiologie
RECRUITINGVienna, State of Vienna, 1100, Austria
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Klinik Ottakring - 3. Medizinische Abteilung mit Kardiologie, internistischer Intensivmedizin und Ambulanz
NOT_YET_RECRUITINGVienna, State of Vienna, 3500, Austria
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Krankenhaus St. Josef Braunau | Innere Medizin I
RECRUITINGBraunau am Inn, Upper Austria, 5280, Austria
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Medizinische Universität Graz- Klinische Abteilung für Kardiologie
RECRUITINGVienna, Styria, 1030, Austria
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Medizinische Universität Wien- Universitätsklinik für Innere Medizin II, Klinische Abteilung für Kardiologie
RECRUITINGVienna, State of Vienna, 1090, Austria
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Oslo Universitetssykehus HF, Rikshospitalet
NOT_YET_RECRUITINGOslo, 0424, Norway
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Ospedale Vito Fazzi Lecce_Cardiologia e UTIC
NOT_YET_RECRUITINGLecce, 73100, Italy
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Sana Klinikum Lichtenberg - Klinik für Innere Medizin II, Schwerpunkt Kardiologie
WITHDRAWNBerlin, 10365, Germany
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Universitaetsklinikum Ulm | Klinik fuer Innere Medizin II
WITHDRAWNUlm, Baden-Wurttemberg, 89081, Germany
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Universitaetsmedizin Greifswald KöR- Klinik und Poliklinik für Innere Medizin B
WITHDRAWNGreifswald, Mecklenburg-Vorpommern, 17475, Germany
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Universitätsklinikum Bonn - Herzzentrum des Universitätsklinikums Bonn
WITHDRAWNBonn, North Rhine-Westphalia, 53127, Germany
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Universitätsklinikum Hamburg Eppendorf (UKE)-Universitären Herz- und Gefäßzentrum Hamburg, Klinik für Kardiologie
WITHDRAWNHamburg, 20246, Germany
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Universitätsklinikum St. Pölten - Lilienfeld - Klinische Abteilung für Innere Medizin 3
WITHDRAWNSankt Pölten, Lower Austria, 1210, Austria
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VIVIT - Landeskrankenhaus Feldkirch - Innere Medizin I, Kardiologie, Angiologie, Endokrinologie, Diabetologie, Intensivmedizin
WITHDRAWNFeldkirch, Vorarlberg, 6800, Austria
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