[18F]FT8 PET Imaging in Immunoglobulin Light Chain Amyloidosis

September 3, 2026 updated by: Shaobo Yao, PhD, Tianjin Medical University

Clinical Study of [18F]FT8 PET/CT in Evaluating Amyloidosis

[18F]FT8, a derivative of 1-(4-pyridyl)-4-piperazinyl arene ([18F]TPZA), exhibits high affinity for AL amyloid in myocardial tissue sections and shows no significant binding to transthyretin amyloid. By comparing its diagnostic performance against established clinical methods, including echocardiography, contrast-enhanced MRI, and relevant laboratory tests, this study aims to establish [18F]FT8 as the basis for a robust PET protocol for the direct visualization and differential diagnosis of AL amyloidosis . The study preimarily evaluates the safety and diagnostic efficacy of [18F]FT8 PET imaging in human subjects.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Subjects will undergo [18F]FT8 PET/CT scans for safety and diagnostic efficacy evaluation. Organ uptake will be quantified using the standard uptake value (SUV). Clinical assessments and laboratory tests, including baseline information collection, physical examination, cardiac function assessment, and hepatic and renal function tests, will be conducted before and after the scan.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
25

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Anhui
      • Hefei, Anhui, China, 230000
        • Recruiting
        • The First Affiliated Hospital of University of Science and Technology of China
        • Contact:
    • Shandong
      • Qingdao, Shandong, China, 266000
        • Recruiting
        • The Affiliated Hospital of Qingdao University
        • Contact:
    • Tianjin Municipality
      • Tianjin, Tianjin Municipality, China, 350005
        • Recruiting
        • Tianjin Medical University General Hospital
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Healthy volunteers and patients with confirmed or suspected systemic or cardiac amyloidosis, including cases secondary to hematologic disorders or genetic diseases.

Description

  1. Subject Recruitment Participants will be recruited from outpatients and/or inpatient populations of the Hematology Department at Tianjin Medical University General Hospital. The principal investigator and collaborating hematologists will ensure consistent application of diagnosis and enrollment criteria based on standardized guidelines. The planned enrollment includes 20 patients with systemic amyloidosis (including cardiac involvement) and 5 healthy volunteers.
  2. Amyloidosis Patients:

2.1 Inclusion Criteria:

Subjects must meet all of the following criteria:

  1. Adult patients (age ≥ 18 years);
  2. Suspected, newly diagnosed, or previously diagnosed with cardiac amyloidosis, with supporting evidence from one or more of the following: cardiac MRI, contrast-enhanced CT, serum biomarkers (e.g., NT-proBNP, Troponin), or histopathological confirmation of amyloidosis.
  3. Scheduled to undergo a clinical Pan-Amyloid PET/CT scan as part of standard care or clinical evaluation.
  4. Able to understand the study procedures and provide written informed consent. 2.2 Exclusion Criteria

Subjects will be excluded based on any of the following:

  1. Confirmed non-cardiac amyloidosis or other non-amyloid cardiac pathologies that could confound image interpretation.
  2. Pregnancy or breastfeeding.
  3. Any medical, psychological, or social condition that, in the opinion of the investigator, would compromise the subject's ability to participate fully or complete the study follow-up.

3. Healthy Volunteers: 3.1 Inclusion Criteria:

Subjects must meet all of the following criteria:

  1. Adult subjects (age ≥ 18 years);
  2. No clinical evidence of active cardiac or systemic disease, as confirmed by medical history review, physical examination, and electrocardiogram (ECG).
  3. Able to understand the study procedures and provide written informed consent. 3.2 Exclusion Criteria:

Subjects will be excluded based on any of the following:

  1. History or current diagnosis of any significant cardiac, hepatic, renal, or neurological disorder.
  2. Pregnancy or breastfeeding.
  3. Any condition that, in the opinion of the investigator, could pose an increased risk from the study procedure or interfere with the interpretation of study data.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Healthy participants
Participants will receive a single intravenous bolus injection of 10 ± 3 mCi of [18F]FT8 followed by a PET/CT scan.
Diagnostic test: [18F]FT8
Each subject will receive a single intravenous injection of [18F]FT8 and will undergo PET imaging at a specified time.
Amyloidosis Patients
Participants will receive a single intravenous bolus injection of 10 ± 3 mCi of [18F]FT8, followed by a PET/CT scan.
Diagnostic test: [18F]FT8
Each subject will receive a single intravenous injection of [18F]FT8 and will undergo PET imaging at a specified time.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
The safety assessment
Time Frame: From time of injection up to 7 days post-injection
The incidence of adverse events assessed by the investigator as related to the [18F]FT8 injection. Systematically collect and assess all adverse events within 7 days post-injection through physical examinations, vital signs monitoring, clinical laboratory tests (complete blood count, hepatic and renal function). All events will be graded for severity according to the Common Terminology Criteria for Adverse Events (CTCAE) v4.0.
From time of injection up to 7 days post-injection
[18F]FT8 Organ Uptake measured by Standardized Uptake Value (SUV)
Time Frame: At the time of the single [18F]FT8 PET/CT scan (Day 1)
Quantification of [18F]FT8 uptake in major organs (e.g., heart, liver, kidneys) using the Standardized Uptake Value (SUV). This measurement will be performed on the PET/CT scans acquired at a specified time. The outcome will be reported as the SUV for each organ in both amyloidosis patients and control subjects.
At the time of the single [18F]FT8 PET/CT scan (Day 1)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
The Biodistribution of [18F]FT8 in subjects
Time Frame: At the time of the single [18F]FT8 PET/CT scan (Day 1)
Semi-quantitatively evaluate the tracer's uptake in the interest organs (including heart, liver, kidneys, lungs, brain, bones, thyroid, blood pool, and other related organs) by measuring the Standard Uptake Value (SUV).
At the time of the single [18F]FT8 PET/CT scan (Day 1)
Radiation Dosimetry
Time Frame: At the time of the single [18F]FT8 PET/CT scan (Day 1)
Calculate the effective radiation dose (mSv) to various human organs and the whole body.
At the time of the single [18F]FT8 PET/CT scan (Day 1)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Tianjin Medical University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Tianjin Medical University General Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 21, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 20, 2028

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 20, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 13, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 15, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 18, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 8, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 3, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • TJMUGH-12

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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