68Ga-BNOTA-PRGD2 PET/CT in Evaluation of Myocardial Infarction (GRGDMI)

68Ga-BNOTA-PRGD2 PET/CT in Evaluation of Angiogenesis of Myocardial Infarction and the Comparison With Cardiac Perfusion and Metabolism

This is an open-label PET/CT (positron emission tomography/computed tomography) study to investigate the diagnostic performance of 68Ga-BNOTA-PRGD2 in evaluation of myocardial infarction. A single dose of nearly 111 MBq 68Ga-BNOTA-PRGD2 ( ≤ 40 µg BNOTA-PRGD2) will be intravenously injected into myocardial infarction patients. Visual and semiquantitative method will be used to assess the 68Ga-BNOTA-PRGD2 PET/CT cardiac images and compared to the 99mTc-MIBI SPECT myocardial perfusion images and the 18F-FDG metabolism images.

Study Overview

• Status: Unknown
• Conditions: Coronary Artery Disease
• Intervention / Treatment: Drug: 68Ga-BNOTA-PRGD2

Detailed Description

Integrin αvβ3 is an important member of integrin receptor family and expressed preferentially on regenerative vascular endothelial cells and some tumor cells, but not or very low expressed on the quiescent vessel cells and other normal cells. The αvβ3 integrin is a key mediator of angiogenesis and thus may be an important diagnostic and therapeutic target associated with myocardial repair processes after ischaemic injury.

The tri-peptide sequence of arginine-glycine-aspartic acid (RGD) can specifically bind to the integrin αvβ3 receptor. Accordingly, a variety of radiolabeled RGD-based peptides have been developed for non-invasive imaging of integrin αvβ3 expression via positron emission tomography (PET) or single photon emission computed tomography (SPECT). Among all the RGD radiotracers studied in Myocardial Infarction (MI), 18F-Galacto-RGD and 99mTc-RGD has been investigated clinically in acute MI patients, showing focal tracer retention localized in the infarcted area. Recently, series of RGD dimeric peptides with PEG linkers have been developed. The new types of RGD peptides showed much higher in vitro integrin αvβ3-binding affinity than the single RGD tri-peptide sequence. As a representative, 68Ga-BNOTA-PRGD2 could be easily prepared and exhibited excellent in vivo behaviors in animal models. No adverse reactions are observed in both animal and human studies to date.

For the further interests in clinical translation of 68Ga-BNOTA-PRGD2, a open-label PET/CT study was designed to investigate the diagnostic performance of 68Ga-BNOTA-PRGD2 in myocardial infarction patients. A single dose of nearly 111 MBq 68Ga-BNOTA-PRGD2 ( ≤ 40 µg BNOTA-PRGD2) will be intravenously injected into the myocardial infarction patients. Visual and semiquantitative method will be used to assess the PET/CT images. 99mTc-MIBI myocardial perfusion SPECT images and 18F-FDG metabolism images will be used for co-registrated comparison.

• Study Type: Interventional
• Enrollment (Anticipated): 50
• Phase: Early Phase 1

Contacts and Locations

Study Locations

• China
  • Beijing
    • Beijing, Beijing, China, 100730
      • Recruiting
      • Department of Nuclear Medicine, Peking Union Medical College Hospital
      • Contact: Zhaohui Zhu, MD; Phone Number: 86-10-13611093752; Email: zhuzhh@pumch.cn

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 30 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

Myocardial infarction patients:

• Males and females
• ≥30 years old
• Patients had myocardial infarction diagnosis (fulfilling two or three symptoms: clinical history of ischaemic type chest pain lasting for more than 20 minutes, changes in serial ECG tracings, rise and fall of serum cardiac biomarkers such as creatine kinase-MB fraction and troponin)

Exclusion Criteria:

• Females planning to bear a child recently or with childbearing potential
• Have other kinds of heart diseases
• Renal function: serum creatinine >3.0 mg/dL (270 μM/L)
• Liver function: any hepatic enzyme level more than 5 times upper limit of normal.
• Known severe allergy or hypersensitivity to IV radiographic contrast.
• Patients not able to enter the bore of the PET/CT scanner.
• Inability to lie still for the entire imaging time because of cough, pain, etc.
• Inability to complete the needed examinations due to severe claustrophobia, radiation phobia, etc.
• Concurrent severe and/or uncontrolled and/or unstable other medical disease that, in the opinion of the investigator, may significantly interfere with study compliance.

Study Plan

How is the study designed?

Design Details

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

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: 68Ga-BNOTA-PRGD2 cardiac PET/CT scanning; We will perform 68Ga-BNOTA-PRGD2 cardiac PET/CT scanning on myocardial infarction patients to determine its value.	Drug: 68Ga-BNOTA-PRGD2; Intravenous injection of one dosage of 111 MBq 68Ga-BNOTA-PRGD2. Tracer doses of 68Ga-BNOTA-PRGD2 will be used to image angiogenesis of myocardial infarction area by positron emission tomography / computed tomography (PET/CT); Other Names: 68Ga-p-SCN-Bn-NOTA-PEG3-RGD2

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Visual and semiquantitative assessment (Standardized Uptake Values = SUVs) of myocardial infarction region and normal left ventricular wall	Visual analysis will be performed by consensus reading by at least 3 experienced nuclear medicine physician and will compare to 99mTc-MIBI myocardial perfusion imaging and 18F-FDG myocardial metabolism imaging obtained within a week. The semiquantitative analysis will be performed by the same person for all the cases, and the MI region standardized uptake values (SUVs), the SUV ratios (SUV of MI/SUV normal LV), and other organs' SUVs will be measured.	1 year

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of participants with adverse events	Adverse events within 5 days after 68Ga-BNOTA-PRGD2 injection and PET/CT scanning of the patients will be collected and assessed.	1 year

Collaborators and Investigators

• Sponsor: Peking Union Medical College Hospital
• Investigators: Principal Investigator: Zhaohui Zhu, MD, Department of Nuclear Medicine, Peking Union Medical College Hospital

Study record dates

Study Major Dates

• Study Start: February 1, 2012
• Primary Completion (Anticipated): December 1, 2017
• Study Completion (Anticipated): December 1, 2017

Study Registration Dates

• First Submitted: February 21, 2012
• First Submitted That Met QC Criteria: February 24, 2012
• First Posted (Estimate): March 1, 2012

Study Record Updates

• Last Update Posted (Actual): April 7, 2017
• Last Update Submitted That Met QC Criteria: April 6, 2017
• Last Verified: November 1, 2014

More Information

Terms related to this study

• Keywords: 68Ga-BNOTA-PRGD2; myocardial infarction; angiogenesis; integrin receptor imaging
• Additional Relevant MeSH Terms: Ischemia; Pathologic Processes; Necrosis; Myocardial Ischemia; Heart Diseases; Cardiovascular Diseases; Vascular Diseases; Arteriosclerosis; Arterial Occlusive Diseases; Coronary Disease; Myocardial Infarction; Infarction; Coronary Artery Disease
• Other Study ID Numbers: PUMCHNM003

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO