PET Imaging of Natriuretic Peptide Receptor C (NPR-C) in Carotid Atherosclerosis (Volunteer - BioD and Safety Study)

April 26, 2016 updated by: Pamela Woodard, MD, Washington University School of Medicine

PET-Magnetic Resonance (MR) Imaging of Natriuretic Peptide Receptor C (NPR-C) in Carotid Atherosclerosis With [64]Cu-25%CANF-Comb (Volunteer - BioDistribution and Safety Study)

This study is designed to assess the safety, biodistribution and dosimetry of the novel atherosclerotic imaging PET radiotracer, Cu[64]-25%-CANF-Comb.

Study Overview

Status

Status

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

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

This study is a single center, open-label baseline controlled imaging study designed to demonstrate safety, biodistribution and dosimetry of the radiopharmaceutical Cu[64]-25%CANF-Comb (Cu = copper; CANF = C-type Atrial Natriuretic Factor) in healthy, adult volunteers. By definition a "healthy" volunteer is an individual who, by physical exam and baseline electrocardiogram, has no evidence of cardiovascular disease and, by history, is not under the care of a physician for any active medical conditions.

Each volunteer will receive a single intravenous bolus injection of 4-8 mCi of the investigational radiotracer Cu[64]-25%CANF-Comb followed by whole body static PET-CT imaging at 3 of 4 dedicated imaging time points, (1-4 hours, 5-10 hours, and 22-26 hours or 46-50 hours post injection). For safety assessment, a physical examination will be performed at baseline and at the completion of all imaging to assess for interval change. An EKG and vital signs will be obtained baseline, at each imaging time point to assess for interval change. Blood will be drawn at baseline, and at each imaging time point to assess for interval change in serum chemistries and complete blood count. Urine will be collected at baseline and at each imaging time point to assess for interval change in urinalysis results.

The amount of radioactive tracer in the blood and urine will also be assessed on all 8 adult normal volunteer subjects. One-mL blood samples will be obtained at baseline, 1, 2, 4, and 24 hours post Cu[64]-25%CANF-Comb injection and prior to discharge. Urine will be collected as a single accumulated collection over 24 hours immediately following injection of Cu[64]-25%CANF-Comb and prior to discharge.

Tracer biodistribution will be evaluated by measuring tracer uptake in various organs in the torso on the PET-CT scan. The organs used to describe the biodistribution of the radiopharmaceutical will be blood, liver, kidneys, spleen, heart, bone, muscle and other organs showing significant uptake. Only organs and tissues containing a visible accumulation of activity will be selected for image quantification. Region of Interests (ROIs) will be drawn to measure average activity concentration in each organ or tissue. Values in three-dimensional region of interest (3D-ROI) traced on the contour of the organs will be used. For the large organs such as the liver, a large elliptical ROI encompassing as much of the organ as possible will be used to obtain an average pixel value. To estimate bone activity, a narrow, irregular ROIs will be drawn to approximate the visible cross section of the ilium or large vertebrae, and the average pixel value will be used. For blood activity, the average pixel intensity in a large 3D-ROI drawn over the left ventricle will be used, thereby avoiding partial volume effects. Muscle activity will be taken as the average value in a large elliptical ROI in the region of the buttocks as seen on MR images. Fat activity will be taken as the average value in a large elliptical ROI in the region of the subcutaneous abdominal fat. All other non-listed organ's activity concentration will be measured in a similar fashion.

Residence times will be calculated by analytical integration of the fitted time taking into account the radioactive decay of Cu[64]. Residence times will be expressed in hours and normalized to one unit injected activity. Blood activity will be also assigned to the heart, lungs and bone marrow, organs for which activity will be not measured directly with an ROI. The heart and lungs will be assigned a blood fraction based on their respective blood volumes. Activity measured in bone is assigned half to cancellous bone and half to cortical bone.

The percent injected dose values will be calculated by extrapolating the measured activity concentration in each organ to the whole organ using standard organ and tissue volumes. These standard volumes will be normalized to each patient's weight. Time activity curves will be then constructed from these values for all organs for which ROIs were drawn including liver, spleen, kidneys, bone, muscle blood pool and remainder of body by combining the data from all the patients. The blood content of each organ will be included with the organ where possible rather than assigning it uniformly to the remainder of body.

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.
Interventional

Enrollment (Actual)

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.
8

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Early Phase 1

Contacts and Locations

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

Study Locations

  • United States
    • Missouri
      • St.Louis, Missouri, United States, 63110
        • Washington University in St.Louis

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

21 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Healthy volunteers (4 men and 4 women)
  • No evidence of cardiovascular disease and not under care of a physician for any active medical condition
  • Health status confirmed by physical exam and ECG
  • Signed informed consent

Exclusion Criteria:

  • Pregnancy or lactation
  • Inability to lie still for up to 60 min with arms above head for PET-CT imaging
  • Unwilling to comply with study procedures and unavailable for the duration of the study.
  • Inability to provide written informed consent.

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

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
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.
Experimental: Cu[64]-25%CANF-Comb
Single IV injection of 4-8 mCi Cu[64]-25%CANF-Comb followed by PET-CT scan at 1-4 hours, 5-10 hours, and 22-26 hours or 46-50 hours post injection.
Drug: Cu[64]-25%CANF-Comb
Intravenous injection of 4-8 mCi of Cu[64]-25%CANF-Comb with PET-CT scans performed 1-4 hours, 5-10 hours, and 22-26 hours or 46-50 hours after injection.

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
Biodistribution, dosimetry and safety of Cu[64]-25%CANF-Comb in normal healthy adult volunteers.
Time Frame: 24-48 hours
Biodistribution by PET-CT (Cu[64]-25%CANF-Comb uptake in blood, liver, kidneys, spleen, heart, bone, muscle); Amount of radioactive tracer in the blood and urine; Difference in physical examination findings, vital signs, serum and urine laboratory values and EKG results from baseline.
24-48 hours

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.
Washington University School of Medicine

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Pamela K Woodard, MD, Washington University School of Medicine

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

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.
October 1, 2014

Primary Completion (Actual)

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.
April 1, 2015

Study Completion (Actual)

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.
April 1, 2015

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).
July 6, 2015

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.
July 14, 2015

First Posted (Estimate)

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.
July 15, 2015

Study Record Updates

Last Update Posted (Estimate)

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.
April 28, 2016

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.
April 26, 2016

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.
April 1, 2016

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.
  • 201409006V

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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