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Heart Failure With Preserved Ejection FractionEarly Phase 1NCT03414632

Transthyretin Cardiac Amyloidosis in HFpEF

A Early Phase 1 study testing 99mTc-PYP in people with Heart Failure With Preserved Ejection Fraction, run by Mayo Clinic at 1 site 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

To estimate the prevalence of transthyretin cardiac amyloidosis (TTR-CA) among Heart Failure with Preserved Ejection Fraction (HFpEF) patients with increased LV wall thickness in Southeast Minnesota using 99mTc-PYP single-photon positive emission computed tomography with computed tomography (SPECT/CT). Read more about this study

Who is it for?
Ages 60 years and older
What is being tested?
99mTc-PYP
Could I receive a placebo?
No, everyone receives an active treatment
How many people
287 participants
Where
1 siteUnited States
Study dates
1 Dec 2017to 31 Mar 2020
Phase
Early Phase 1
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 60 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Resident of Southeastern Minnesota (Olmsted, Dodge, Fillmore, Mower, Freeborn, Wabasha, or Steele County)
  • Current diagnosis of HF per NLP search
  • Age > 60 years
  • Clinically obtained echocardiogram within 12 months of index visit showing:
  • EF ≥ 40% and
  • Increased Left Ventricular (LV) wall thickness as defined by an end-diastolic left ventricular septal or posterior wall thickness (LVWTd) ≥ 20% above the upper limit of normal measured by 2D or M-mode imaging in the parasternal long (2D) or short (M-mode) axis view (≥12 mm).
Show all 11Show fewer
  • Objective evidence of HF defined as one or more of the following present within 24 months of index visit:
  • Meet Framingham Criteria at index visit (In-patient or outpatient)
  • Previous HF hospitalization
  • Invasive hemodynamic documentation of elevated pulmonary capillary wedge pressure (PCWP) or left ventricular end-diastolic pressure (LVEDP) (> 18 mmHg at rest or > 25 mmHg with exercise)
  • Left atrial enlargement + loop diuretic for HF(clinically obtained) N-terminal pro b-type natriuretic peptide (NT-proBNP) > 300 (sinus rhythm) or >900 (atrial fibrillation) pg/mL

Who cannot join

  • Documentation of previous EF < 40%
  • Any cardiac surgery or major chest trauma within 4 weeks of index visit
  • Presence or history of hemodynamically significant left sided valvular disease defined as:
  • Greater than mild mitral stenosis
  • Intrinsic mitral valve disease (prolapse, flail) with greater than moderate regurgitation
  • Myocardial infarction within 4 weeks of index visit defined by typical angina, EKG changes and significant change in serial troponins. Note that chronic troponin elevation is extremely common in cardiac amyloidosis. Hospitalized patients with troponin elevation but no significant change (delta) on serial testing will NOT be excluded.
  • Prior or current exposure to Plaquenil (Hydroxychloroquine)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Mayo Clinic in Rochester

    Rochester, Minnesota, 55905

Other trials in United States

About this study

Official title: Prevalence of Transthyretin Cardiac Amyloidosis in Heart Failure With Preserved Ejection Fraction: A Community Study

To estimate the prevalence of transthyretin cardiac amyloidosis (TTR-CA) among Heart Failure with Preserved Ejection Fraction (HFpEF) patients with increased LV wall thickness in Southeast Minnesota using 99mTc-PYP single-photon positive emission computed tomography with computed tomography (SPECT/CT).

Read the detailed description

Residents of Southeast Minnesota over 60 years of age with an inpatient or outpatient diagnosis of heart failure (HF) will be consecutively identified in real-time using a natural language processing (NLP) search engine, their HF diagnosis validated, and those with a recent (≤ 12 months) echocardiogram documenting a preserved EF( ≥ 40%) and LV wall thickening will be consented to undergo venipuncture, urine collection and 99mTc-PYP SPECT/CT imaging to rule in/out the diagnosis of TTR-CA. Hence, the prevalence of TTR-CA will be defined. To place this prevalence in perspective of the global HFpEF cohort in the community, a rigorous screening log will be maintained to allow generation of a comprehensive CONSORT diagram. Importantly, baseline characteristics of patients who qualify for our study but decline to consent will still be collected provided that consent for use of their records for medical research had previously been granted.

Being tested
99mTc-PYP
Keywords
Heart Failure, Diastolic Heart Failure, Heart Failure with Preserved Ejection Fraction, Transthyretin Cardiac Amyloidosis, Amyloidosis
Medical subject headings
Heart Failure, Heart Failure, Diastolic, Amyloidosis

What participants receive

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

  • 99mTc-PYPDrug

    Radioisotope used in the SPECT/CT imaging

Study groups in NCT03414632
Study groupRoleWhat they receive
SPECT/CTOther99mTc-PYP single-photon positive emission computed tomography with computed tomography
Receives: Drug: 99mTc-PYP

What is being measured

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

  1. Prevalence of TTR-CA

    Determine the prevalence of Transthyretin Cardiac Amyloidosis in a community based cohort of consecutive Heart Failure with Preserved Ejection Fraction patients with increased Left Ventricular wall thickness using 99mTc-Pyrophosphate (99mTc-PYP) single-photon positive emission computed tomography with computed tomography (SPECT/CT).

    Measured: Baseline

Timeline

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

  1. First posted30 Jan 2018
  2. Study start1 Dec 2017
  3. Primary completion31 Mar 2020
  4. Study completion31 Mar 2020

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
Early Phase 1
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
287 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03414632
Sponsor's protocol ID
17-003021
Status last verified
Mar 2021
First submitted
23 Jan 2018
Last updated
19 Mar 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing 99mTc-PYP in people with Heart Failure With Preserved Ejection Fraction, run by Mayo Clinic at 1 site 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 11 inclusion and 7 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 19 Mar 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

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?

Prevalence of TTR-CA (time frame: Baseline). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 19 Mar 2021.

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