Cardiovascular Inflammation Reduction Trial - Inflammation Imaging Study (CIRT)
Primary Purpose
Vascular Inflammation, Atherosclerotic Cardiovascular Disease
Status
Completed
Phase
Phase 3
Locations
International
Study Type
Interventional
Intervention
Low dose methotrexate
Placebo
Sponsored by
About this trial
This is an interventional treatment trial for Vascular Inflammation focused on measuring Atherosclerotic cardiovascular disease, Inflammation reduction
Eligibility Criteria
Inclusion Criteria:
- Age > 18 years at screening
- Documented MI in the past or past evidence of multivessel coronary artery disease by angiography must have completed any planned coronary revascularization procedures associated with the qualifying event, and must be clinically stable for at least 60 d before screening; the qualifying prior MI must be documented either by hospital records or by evidence on current electrocardiogram of Q waves in 2 contiguous leads and/or an imaging test demonstrating wall motion abnormality or scar; the qualifying documentation of multivessel coronary disease must include angiographic evidence of atherosclerosis in at least 2 major epicardial vessels defined either as the presence of a stent, a coronary bypass graft, or an angiographic lesion of 60% or greater. Left main coronary artery disease that has been revascularized with a stent or bypass graft will qualify as multivessel disease, as will the presence of a 50% or greater isolated left main stenosis.
- History of type 2 diabetes or metabolic syndrome at the time of study enrollment
- Willing to participate as evidence by signing the study informed consent
Exclusion Criteria:
- Prior history of chronic infectious disease, including tuberculosis, severe fungal disease, or known HIV positive
- Chronic hepatitis B or C infection
- Interstitial pneumonitis, bronchiectasis, or pulmonary fibrosis. Chest x-ray evidence in the past 12 months of interstitial pneumonitis, bronchiectasis, or pulmonary fibrosis.
- Prior history of non basal cell malignancy or myeloproliferative or lymphoproliferative disease within the past 5 years
- White blood cell count <3,500/mm3, hematocrit <32%, or platelet count <75000/mm3
- Liver transaminase levels (AST/ALT) greater than the upper limit of normal or albumin less than the lower limit of normal
- Creatinine clearance (CrCl) <40 mL/min as estimated by the Cockcroft-Gault equation
- History of alcohol abuse or unwillingness to limit alcohol consumption to <4 drinks per week
- Women of child bearing potential, even if currently using contraception, and women intending to breastfeed
- Men who plan to father children during the study period or who are unwilling to use contraception
- Requirement for use of drugs that alter folate metabolism (trimethoprim/sulfamethoxazoyl) or reduce tubular excretion (probenecid) or known allergies to antibiotics making avoidance of trimethoprim impossible
- Current indication for methotrexate therapy
- Chronic use of oral steroid therapy or other immunosuppressive or biologic response modifiers
- Known chronic pericardial effusion, pleural effusion, or ascites
- New York Heart Association class IV congestive heart failure
- Life expectancy of <3 years
The study population for the ancillary study will be the same as the main trial with the following additional exclusion criteria
- Subjects with a history of multiple imaging studies associated with radiation exposure
- Insulin-dependent diabetics
- If subject is Type 2 diabetic, hemoglobin A1c greater than 8% as determined by patient medical record review in the one year prior to the date of consent to this study.
- BMI greater than 37 kg/m2 or weight greater than 350 pounds
Sites / Locations
- Massachusetts General Hospital
- Icahn School of Medicine at Mount Sinai
- St. Michael's Hospital
Arms of the Study
Arm 1
Arm 2
Arm Type
Experimental
Placebo Comparator
Arm Label
Low dose methotrexate
Placebo
Arm Description
average dose of 15-20 mg po/weekly
matching placebo
Outcomes
Primary Outcome Measures
Change in Arterial Inflammation
Change in arterial inflammation - The relative change at 8 months as compared to baseline in arterial inflammation as measured by the most diseased segment (MDS) of the index vessel. The MDS is defined as the 1.5 cm segment within the carotid artery (right or left carotid) that demonstrates the highest PET/CT activity, and is calculated as a mean of maximum TBR values derived from 3 contiguous axial segments. The index vessel in turn is defined as the vessel (either aorta, right, or left carotid) with the greatest mean TBR at baseline. (MDS TBR Index Vessel)
Secondary Outcome Measures
Change in Max Target-to-background (TBR)
Change in max target-to-background (TBR) - The mean of max TBR within the carotid arteries as an average of the slices from the left and right carotid) at follow up imaging as compared to baseline.
Change in Max TBR Within the Carotid Arteries
Change in max target-to-background (TBR) - The mean of max TBR within the carotid arteries as an average of the slices from the left and right carotid)
Full Information
NCT ID
NCT02576067
First Posted
October 13, 2015
Last Updated
April 9, 2020
Sponsor
Icahn School of Medicine at Mount Sinai
Collaborators
Brigham and Women's Hospital, Massachusetts General Hospital, Unity Health Toronto, National Institutes of Health (NIH), National Heart, Lung, and Blood Institute (NHLBI)
1. Study Identification
Unique Protocol Identification Number
NCT02576067
Brief Title
Cardiovascular Inflammation Reduction Trial - Inflammation Imaging Study
Acronym
CIRT
Official Title
Cardiovascular Inflammation Reduction Trial (CIRT) - Inflammation Imaging Study
Study Type
Interventional
2. Study Status
Record Verification Date
April 2020
Overall Recruitment Status
Completed
Study Start Date
December 18, 2015 (Actual)
Primary Completion Date
March 29, 2019 (Actual)
Study Completion Date
March 29, 2019 (Actual)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Icahn School of Medicine at Mount Sinai
Collaborators
Brigham and Women's Hospital, Massachusetts General Hospital, Unity Health Toronto, National Institutes of Health (NIH), National Heart, Lung, and Blood Institute (NHLBI)
4. Oversight
Data Monitoring Committee
Yes
5. Study Description
Brief Summary
Vascular inflammation, a central feature of atherosclerosis, participates in the initiation, perpetuation and instability of plaques. Multiple clinical trials of cholesterol lowering therapy with statins have demonstrated that reductions in atherosclerotic cardiovascular disease (CVD) events are associated with reductions in both LDL cholesterol (LDL-C) and the systemic inflammatory mediator C-reactive protein (CRP). The Cardiovascular Inflammation Reduction Trial (CIRT) investigates if an anti-inflammatory agent commonly used in rheumatoid arthritis (low dose methotrexate (LDM)) can reduce CV morbidity and mortality among patients with a prior myocardial infarction or angiographically demonstrated multivessel coronary artery disease (GCO#13-1467).
In this ancillary CIRT imaging study, the investigators propose to use this well validated approach by non-invasive serial FDG-PET/CT imaging in a subset of patients enrolled in the main CIRT trial to directly visualize vascular inflammation. Once the subjects are enrolled in the main CIRT trial, baseline imaging will be done and follow up imaging will be done approximately 8 months after the baseline imaging.
18FDG-PET imaging data will be acquired, analyzed centrally and results incorporated into the main CIRT database. The investigators hypothesize that LDM treatment will result in a significant decrease in plaque inflammation as measured by 18-FDG-PET/CT after 8 months as compared to placebo.
Detailed Description
The NHLBI funded (Ridker 5U01HL101422) Cardiovascular Inflammation Reduction Trial (CIRT) provides a unique opportunity to investigate whether a commonly used anti-inflammatory agent used in rheumatoid arthritis (low dose methotrexate (LDM)) can reduce CVD morbidity and mortality among patients with stable coronary artery disease. CIRT, is a randomized, double-blind, placebo-controlled, multi-center trial among 7,000 men and women with prior myocardial infarction or angiographically demonstrated multivessel coronary artery disease. Eligible participants will be randomly allocated over a three to four year period to usual care plus placebo or usual care plus LDM (average dose of 15-20 mg po/weekly. CIRT proposes that the reduction in CVD events with methotrexate derives from its effect on vascular inflammation, thus it is crucial to incorporate a measure of vascular inflammation imaging for confirmation of the primary mechanism of action underlying CIRT. As such, the direct evaluation of arterial inflammation would enhance the scientific value of the CIRT trial.
The inclusion of the proposed vascular inflammation imaging substudy has widespread implications that will allow this imaging modality to serve as a surrogate measure of disease, and thereby provide an opportunity for stratification in individuals at risk for CVD and evaluation of other interventions with presumed anti-inflammatory effects.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Vascular Inflammation, Atherosclerotic Cardiovascular Disease
Keywords
Atherosclerotic cardiovascular disease, Inflammation reduction
7. Study Design
Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
123 (Actual)
8. Arms, Groups, and Interventions
Arm Title
Low dose methotrexate
Arm Type
Experimental
Arm Description
average dose of 15-20 mg po/weekly
Arm Title
Placebo
Arm Type
Placebo Comparator
Arm Description
matching placebo
Intervention Type
Drug
Intervention Name(s)
Low dose methotrexate
Intervention Description
Study participants will additionally receive 1 mg daily oral folate.
Intervention Type
Drug
Intervention Name(s)
Placebo
Primary Outcome Measure Information:
Title
Change in Arterial Inflammation
Description
Change in arterial inflammation - The relative change at 8 months as compared to baseline in arterial inflammation as measured by the most diseased segment (MDS) of the index vessel. The MDS is defined as the 1.5 cm segment within the carotid artery (right or left carotid) that demonstrates the highest PET/CT activity, and is calculated as a mean of maximum TBR values derived from 3 contiguous axial segments. The index vessel in turn is defined as the vessel (either aorta, right, or left carotid) with the greatest mean TBR at baseline. (MDS TBR Index Vessel)
Time Frame
baseline and 8 months
Secondary Outcome Measure Information:
Title
Change in Max Target-to-background (TBR)
Description
Change in max target-to-background (TBR) - The mean of max TBR within the carotid arteries as an average of the slices from the left and right carotid) at follow up imaging as compared to baseline.
Time Frame
baseline and 8 months
Title
Change in Max TBR Within the Carotid Arteries
Description
Change in max target-to-background (TBR) - The mean of max TBR within the carotid arteries as an average of the slices from the left and right carotid)
Time Frame
baseline and 8 months
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria:
Age > 18 years at screening
Documented MI in the past or past evidence of multivessel coronary artery disease by angiography must have completed any planned coronary revascularization procedures associated with the qualifying event, and must be clinically stable for at least 60 d before screening; the qualifying prior MI must be documented either by hospital records or by evidence on current electrocardiogram of Q waves in 2 contiguous leads and/or an imaging test demonstrating wall motion abnormality or scar; the qualifying documentation of multivessel coronary disease must include angiographic evidence of atherosclerosis in at least 2 major epicardial vessels defined either as the presence of a stent, a coronary bypass graft, or an angiographic lesion of 60% or greater. Left main coronary artery disease that has been revascularized with a stent or bypass graft will qualify as multivessel disease, as will the presence of a 50% or greater isolated left main stenosis.
History of type 2 diabetes or metabolic syndrome at the time of study enrollment
Willing to participate as evidence by signing the study informed consent
Exclusion Criteria:
Prior history of chronic infectious disease, including tuberculosis, severe fungal disease, or known HIV positive
Chronic hepatitis B or C infection
Interstitial pneumonitis, bronchiectasis, or pulmonary fibrosis. Chest x-ray evidence in the past 12 months of interstitial pneumonitis, bronchiectasis, or pulmonary fibrosis.
Prior history of non basal cell malignancy or myeloproliferative or lymphoproliferative disease within the past 5 years
White blood cell count <3,500/mm3, hematocrit <32%, or platelet count <75000/mm3
Liver transaminase levels (AST/ALT) greater than the upper limit of normal or albumin less than the lower limit of normal
Creatinine clearance (CrCl) <40 mL/min as estimated by the Cockcroft-Gault equation
History of alcohol abuse or unwillingness to limit alcohol consumption to <4 drinks per week
Women of child bearing potential, even if currently using contraception, and women intending to breastfeed
Men who plan to father children during the study period or who are unwilling to use contraception
Requirement for use of drugs that alter folate metabolism (trimethoprim/sulfamethoxazoyl) or reduce tubular excretion (probenecid) or known allergies to antibiotics making avoidance of trimethoprim impossible
Current indication for methotrexate therapy
Chronic use of oral steroid therapy or other immunosuppressive or biologic response modifiers
Known chronic pericardial effusion, pleural effusion, or ascites
New York Heart Association class IV congestive heart failure
Life expectancy of <3 years
The study population for the ancillary study will be the same as the main trial with the following additional exclusion criteria
Subjects with a history of multiple imaging studies associated with radiation exposure
Insulin-dependent diabetics
If subject is Type 2 diabetic, hemoglobin A1c greater than 8% as determined by patient medical record review in the one year prior to the date of consent to this study.
BMI greater than 37 kg/m2 or weight greater than 350 pounds
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Zahi Fayad, PhD
Organizational Affiliation
Icahn School of Medicine at Mount Sinai
Official's Role
Principal Investigator
Facility Information:
Facility Name
Massachusetts General Hospital
City
Boston
State/Province
Massachusetts
ZIP/Postal Code
02199
Country
United States
Facility Name
Icahn School of Medicine at Mount Sinai
City
New York
State/Province
New York
ZIP/Postal Code
10029
Country
United States
Facility Name
St. Michael's Hospital
City
Toronto
State/Province
Ontario
Country
Canada
12. IPD Sharing Statement
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Cardiovascular Inflammation Reduction Trial - Inflammation Imaging Study
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