A simple heart scan may unmask a hidden cause of heart failure
NCT ID NCT05577819
First seen Sep 01, 2026 · Last updated Sep 02, 2026 · Updated 1 time
Summary
This study tests whether a cardiac imaging technique called a PYP scan can detect transthyretin amyloidosis in people aged 65 and older who have heart failure with preserved ejection fraction, also known as diastolic heart failure. The researchers will scan 515 participants to see how often this protein buildup occurs and whether certain clues can predict it. The goal is to identify amyloidosis earlier so patients can start treatment sooner.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- 99mTc-pyrophosphate scintigraphy (PYP scan), a cardiac imaging test using a radioactive tracer to detect amyloid deposits in the heart
- What this could lead to
- If the scan proves reliable, doctors could diagnose transthyretin amyloidosis earlier in heart failure patients, allowing timely treatment and better outcomes.
- What could go wrong
- The trial is a single-center diagnostic study, so results may not apply broadly. The scan may miss some cases or be less accurate than hoped, and it involves a small amount of radiation.
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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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 515 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2020
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
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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65 years and older
- 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: * Patients with a confirmed diagnosis of HFpEF. * Age ≥65 years old Exclusion Criteria: * End stage chronic kidney disease on dialysis (CKD stage 5 as defined as eGFR \<15mL/min) * no history of HFrEF (LVEF\<40%) with the exception of low LVEF in the setting of acute decompensation, AF RVR, ACS/MI, etc * Negative 99mTc-pyrophosphate scan within a year * Unable to lie down for 15 minutes for the 99mTc-pyrophosphate scan * Known diagnosis of amyloidosis * Severe valvular heart disease that is uncorrected (moderate to severe is considered exclusionary)
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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
1 site. 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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Massachusetts General Hospital
RECRUITINGBoston, Massachusetts, 02114, United States
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Other studies related to the condition(s) this trial covers.
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- Can a single scan reveal hidden amyloid deposits across the body?
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