Atrial FibrillationPhase 2RECAD-AFNCT01710254
Regadenoson Stress-MRI to Identify Coronary Artery Disease in Atrial Fibrillation Patients
A Phase 2 study testing Regadenoson MRI and Gadobenate dimeglumine in people with Atrial Fibrillation and Coronary Artery Disease, run by University of Utah at 1 site in United States.
Trial summary
Atrial fibrillation (AF) is growing into an epidemic affecting 1 in 4 adults. There is a need for research to elucidate the prevalence of ischemic cardiomyopathy in patients diagnosed with AF. The objective of this study is to demonstrate the utility of MRI in assessment of coronary artery disease. Read more about this study
- Who is it for?
- Ages 18 to 100 years
- Conditions the study is for
- Atrial Fibrillation, Coronary Artery Disease
- What is being tested?
- Regadenoson MRI and Gadobenate dimeglumine
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteUnited States
- Study dates
- Jan 2013to Oct 2016
- Phase
- Phase 2
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 18 to 100 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients with confirmed persistent or paroxysmal AF and suspected coronary artery disease who will undergo catheterization X-ray angiography
Who cannot join
- Critically ill patients, patients on ventilators patients with hypotension, asthmatics, and other patients whose medical care or safety may be compromised from undergoing an MRI examination will be excluded.
- Patients with claustrophobia will also be excluded since MRI is conducted in a closed environment.
- Patients with contraindications to MRI (pacemaker, metal implants).
- Pregnant subjects (or women who may become pregnant), minors, and prisoners will be excluded from this study.
- Subjects are over 60 or have any suspicion of abnormal kidney function (a blood test to determine Glomerular filtration rate (GFR) will be performed prior to imaging. Subjects with GFR<30 will be excluded from the study. This is standard practice for clinical scans in Radiology due to the extremely small but not negligible relationship between gadolinium contrast agent and nephrogenic systemic fibrosis in patients with severely impaired renal function.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Detection of Coronary Artery Disease in Patients With Atrial Fibrillation Using Regadenoson Stress MRI
Atrial fibrillation (AF) is growing into an epidemic affecting 1 in 4 adults. There is a need for research to elucidate the prevalence of ischemic cardiomyopathy in patients diagnosed with AF. The objective of this study is to demonstrate the utility of MRI in assessment of coronary artery disease. The specific objective is to demonstrate sensitivity/specificity comparable to that reported in meta-analyses of non-AF patients and adenosine (90% /80%) in an AF population using the time-efficient vasodilator regadenoson that requires only a single intravenous (IV).
Read the detailed description
Scientific Background/Rationale:
Atrial fibrillation (AF) is a large and growing healthcare problem worldwide. Over 7 million people in the U.S. and Europe currently suffer from atrial fibrillation, and this number is expected to double before 2050. The lifetime risk of AF is high: ~24% at age 40, and this risk remains fairly constant at older ages, with 22% lifetime risk at age 80 [1]. AF significantly increases the risk of stroke and mortality, and can greatly limit quality of life. Little research has been done on AF and ischemic cardiomyopathy, though it is a relatively common co-morbidity. CT found increased prevalence (41% vs 27%) of coronary artery disease (CAD) in patients with AF compared to patients with similar pre-test risk but no AF [2]. AF patients with a positive SPECT scan for CAD have a worse prognosis for cardiac events than patients with positive SPECT but without AF [3]. It was recently reported that in a study of 253 AF patients, that AF patients with positive SPECT studies had a very high number of false positives - only 15% of patients had significant CAD by angiography (compared to 67% in the control group) [4, 5]. Just over half of the patients were in sinus rhythm at SPECT, but since similar numbers of positives were seen in each half, the authors did not feel that imaging during AF was the cause of the poor specificity.
Use of MRI for assessment of CAD is a growing area that entails no radiation exposure to the patient. Advances in MRI have made it possible to accurately detect CAD, either as well or better than SPECT in unselected populations [6, 7]. However, adoption of MRI myocardial perfusion scans has been limited in part due to the challenges associated with the use of adenosine. Adenosine requires starting a second IV, and to use either a special expensive MRI-compatible infusion pump to deliver the drug, or long lengths of tubing to run to a pump outside the scanner room. Neither solution is ideal, and regadenoson would not require any such pumps or the starting of a second IV. Here the investigators propose to determine the sensitivity/specificity for dynamic contrast-enhanced myocardial perfusion MRI with the vasodilator regadenoson in a subpopulation of patients - those with atrial fibrillation.
The investigators have a great deal of experience with stress and rest myocardial perfusion MRI. In a preliminary study imaging three patients with AF that then went to X-ray angiography (cath), two of the three subjects had significant stenoses by cath, and one did not. This agreed with the regadenoson stress perfusion MRI findings. These MRI acquisitions were performed on a Siemens Verio MRI scanner. The Verio operates at twice the magnetic field strength (3 Tesla, or 3T) of most MRI scanners, which operate at 1.5T. The higher magnetic field offers images with significantly less noise (almost twice the signal-to-noise ratio).
Objective: To demonstrate sensitivity/specificity comparable to that reported in meta-analyses of non-AF patients and adenosine (90%/80% [6, 7]), in an atrial fibrillation population while using the time-efficient vasodilator regadenoson that requires only a single IV.
Study Design: This will be a prospective, open-label, comparative trial using MRI. Non-invasive MRI measurements of resting flow and flow at regadenoson stress will be obtained in each subject during a one hour MRI exam using our advanced MRI acquisition techniques. Sensitivity/specificity of regadenoson stress MRI will be determined using x-ray angiography as the standard. X-ray angiography will be done as standard-of-care, and is not an intervention of this clinical trial.
Study Procedure: Each subject will undergo a single MRI scanning session. Caffeine will be stopped 12 hours prior to the procedure. One IV will be started and subjects positioned in the scanner. Resting perfusion with Multihance Gd-BOPTA contrast agent will be performed first. The perfusion acquisition acquires 3-6 short axis slices each heartbeat and lasts for one minute. Then a standard regadenoson injection of 400ug/5cc will be given and MR imaging performed with a Gd-BOPTA contrast agent bolus 60-100 seconds later [9] [10].
- Conditions
- Atrial Fibrillation, Coronary Artery Disease
- Being tested
- Regadenoson MRI, Gadobenate dimeglumine
- Keywords
- MRI, Atrial Fibrillation
- Medical subject headings
- Atrial Fibrillation, Coronary Artery Disease
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Regadenoson MRIDrug
Also called Lexiscan
AF patients will be provided with a regadenoson stress MRI to see if coronary artery disease can be detected with more sensitivity /specificity.
Gadobenate dimeglumineDrug
Also called Gd-BOPTA, Multihance
Resting perfusion with Multihance Gd-BOPTA contrast agent will be performed first, then a regadenoson injection will be given and MR imaging performed with a Gd-BOPTA contrast agent bolus 60-100 seconds later.
| Study group | Role | What they receive |
|---|---|---|
| Regadenoson MRI | Experimental | Participants with AF receiving regadenoson stress MRI, using Gadobenate dimeglumine Receives: Drug: Regadenoson MRI; Drug: Gadobenate dimeglumine |
What is being measured
The primary outcome is the main question the study is designed to answer.
Sensitivity of Regadenoson Stress-MRI for Detection of Coronary Artery Disease (CAD)
Determination of sensitivity of Regadenoson stress-MRI in the detection of CAD, using x-ray angiography as the standard. Perfusion images interpreted by three blinded readers as normal or abnormal; majority results of the three blinded readers are reported.
Measured: one MRI, up to 1 hour
Specificity of Regadenoson Stress-MRI for Detection of Coronary Artery Disease (CAD)
Determination of specificity of Regadenoson stress-MRI in the detection of CAD, using x-ray angiography as the standard. Perfusion images interpreted by three blinded readers as normal or abnormal; majority results of the three blinded readers are reported.
Measured: one MRI, up to 1 hour
Secondary outcomes (1)
Accuracy of Regadenoson Stress-MRI for Detection of Coronary Artery Disease (CAD)
Determination of accuracy of Regadenoson stress-MRI in the detection of CAD, using x-ray angiography as the standard. Accuracy is the percentage of correctly classified subjects (true positive + true negative) among all subjects (true positive + true negative + false positive + false negative). Perfusion images interpreted by three blinded readers as normal or abnormal; majority results of the three blinded readers are reported.
Measured: one MRI, up to 1 hour
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Oct 2012 (estimated)
- Study startJan 2013
- Primary completionOct 2016
- Study completionOct 2016
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (11)Papers the sponsor has linked to this study.
- Other trials for Atrial FibrillationStudies of the same condition, open and under way.
- More trials run by University of UtahThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Utah
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Brent Wilson, University of Utah
- Investigators
- Brent Wilson, MD, Principal investigator, University of Utah
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01710254
- Sponsor's protocol ID
- REGA-12F08
- Acronym
- RECAD-AF
- Status last verified
- Nov 2017
- First submitted
- 2 Oct 2012
- Last updated
- 13 Dec 2017
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Publications
Lloyd-Jones DM, Wang TJ, Leip EP, Larson MG, Levy D, Vasan RS, D'Agostino RB, Massaro JM, Beiser A, Wolf PA, Benjamin EJ. Lifetime risk for development of atrial fibrillation: the Framingham Heart Study. Circulation. 2004 Aug 31;110(9):1042-6. doi: 10.1161/01.CIR.0000140263.20897.42. Epub 2004 Aug 16.
PubMed 15313941Nucifora G, Schuijf JD, Tops LF, van Werkhoven JM, Kajander S, Jukema JW, Schreur JH, Heijenbrok MW, Trines SA, Gaemperli O, Turta O, Kaufmann PA, Knuuti J, Schalij MJ, Bax JJ. Prevalence of coronary artery disease assessed by multislice computed tomography coronary angiography in patients with paroxysmal or persistent atrial fibrillation. Circ Cardiovasc Imaging. 2009 Mar;2(2):100-6. doi: 10.1161/CIRCIMAGING.108.795328. Epub 2009 Jan 26.
PubMed 19808575Abidov A, Hachamovitch R, Rozanski A, Hayes SW, Santos MM, Sciammarella MG, Cohen I, Gerlach J, Friedman JD, Germano G, Berman DS. Prognostic implications of atrial fibrillation in patients undergoing myocardial perfusion single-photon emission computed tomography. J Am Coll Cardiol. 2004 Sep 1;44(5):1062-70. doi: 10.1016/j.jacc.2004.05.076.
PubMed 15337220Smit MD, Tio RA, Slart RH, Zijlstra F, Van Gelder IC. Myocardial perfusion imaging does not adequately assess the risk of coronary artery disease in patients with atrial fibrillation. Europace. 2010 May;12(5):643-8. doi: 10.1093/europace/eup404. Epub 2009 Dec 17.
PubMed 20022875Nandalur KR, Dwamena BA, Choudhri AF, Nandalur MR, Carlos RC. Diagnostic performance of stress cardiac magnetic resonance imaging in the detection of coronary artery disease: a meta-analysis. J Am Coll Cardiol. 2007 Oct 2;50(14):1343-53. doi: 10.1016/j.jacc.2007.06.030. Epub 2007 Sep 17.
PubMed 17903634Hamon M, Fau G, Nee G, Ehtisham J, Morello R, Hamon M. Meta-analysis of the diagnostic performance of stress perfusion cardiovascular magnetic resonance for detection of coronary artery disease. J Cardiovasc Magn Reson. 2010 May 19;12(1):29. doi: 10.1186/1532-429X-12-29.
PubMed 20482819Ablitt NA, Gao J, Keegan J, Stegger L, Firmin DN, Yang GZ. Predictive cardiac motion modeling and correction with partial least squares regression. IEEE Trans Med Imaging. 2004 Oct;23(10):1315-24. doi: 10.1109/TMI.2004.834622.
PubMed 15493698S. E. Litwin, J. Fluckiger, L. Chen, T. H. Kim, N. Pack, B. Matthews, C. McGann, R. Jiji, et al. Does fixed-dose regadenoson induce comparable myocarial perfusion reserve in patients of widely varying body size? A quantitative MRI study. American Heart Association, chicago, 2010.
O. J. Booker, P. Bandettini, P. Kellman, J. Wilson, S. Leung, S. Vasu, S. Shanbhag, J. Henry, et al. Time resolved measure of coronary sinus flow following regadenoson administration. Journal of cardiovascular magnetic resonance, 13(1): O74, 2011.
Harper R, Reeves B. Reporting of precision of estimates for diagnostic accuracy: a review. BMJ. 1999 May 15;318(7194):1322-3. doi: 10.1136/bmj.318.7194.1322. No abstract available.
PubMed 10323817Bieging ET, Haider I, Adluru G, Chang L, Suksaranjit P, Likhite D, Shaaban A, Jensen L, Wilson BD, McGann CJ, DiBella E. Rapid rest/stress regadenoson ungated perfusion CMR for detection of coronary artery disease in patients with atrial fibrillation. Int J Cardiovasc Imaging. 2017 Nov;33(11):1781-1788. doi: 10.1007/s10554-017-1168-1. Epub 2017 May 20.
PubMed 28528431
Study at a glance
From the registry record, last updated by the sponsor on 13 Dec 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Detection of Coronary Artery Disease in Patients With Atrial Fibrillation Using Regadenoson Stress MRI
- ClinicalTrials.gov ID
- NCT01710254
- Acronym / sponsor ID
- RECAD-AF / REGA-12F08
- Conditions
- Atrial Fibrillation, Coronary Artery Disease
- Keywords
- MRI, Atrial Fibrillation
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- University of UtahUniversity, hospital or other
- Study start
- Jan 2013
- Primary completion
- Oct 2016 (actual)
- Study completion
- Oct 2016 (actual)
- First posted
- 19 Oct 2012 (estimated)
- Results
- Posted 7 Nov 2017
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Atrial fibrillation (AF) is growing into an epidemic affecting 1 in 4 adults. There is a need for research to elucidate the prevalence of ischemic cardiomyopathy in patients diagnosed with AF. The objective of this study is to demonstrate the utility of MRI in assessment of coronary artery disease. The specific objective is to demonstrate sensitivity/specificity comparable to that reported in meta-analyses of non-AF patients and adenosine (90% /80%) in an AF population using the time-efficient vasodilator regadenoson that requires only a single intravenous (IV).
Detailed description
Scientific Background/Rationale:
Atrial fibrillation (AF) is a large and growing healthcare problem worldwide. Over 7 million people in the U.S. and Europe currently suffer from atrial fibrillation, and this number is expected to double before 2050. The lifetime risk of AF is high: ~24% at age 40, and this risk remains fairly constant at older ages, with 22% lifetime risk at age 80 [1]. AF significantly increases the risk of stroke and mortality, and can greatly limit quality of life. Little research has been done on AF and ischemic cardiomyopathy, though it is a relatively common co-morbidity. CT found increased prevalence (41% vs 27%) of coronary artery disease (CAD) in patients with AF compared to patients with similar pre-test risk but no AF [2]. AF patients with a positive SPECT scan for CAD have a worse prognosis for cardiac events than patients with positive SPECT but without AF [3]. It was recently reported that in a study of 253 AF patients, that AF patients with positive SPECT studies had a very high number of false positives - only 15% of patients had significant CAD by angiography (compared to 67% in the control group) [4, 5]. Just over half of the patients were in sinus rhythm at SPECT, but since similar numbers of positives were seen in each half, the authors did not feel that imaging during AF was the cause of the poor specificity.
Use of MRI for assessment of CAD is a growing area that entails no radiation exposure to the patient. Advances in MRI have made it possible to accurately detect CAD, either as well or better than SPECT in unselected populations [6, 7]. However, adoption of MRI myocardial perfusion scans has been limited in part due to the challenges associated with the use of adenosine. Adenosine requires starting a second IV, and to use either a special expensive MRI-compatible infusion pump to deliver the drug, or long lengths of tubing to run to a pump outside the scanner room. Neither solution is ideal, and regadenoson would not require any such pumps or the starting of a second IV. Here the investigators propose to determine the sensitivity/specificity for dynamic contrast-enhanced myocardial perfusion MRI with the vasodilator regadenoson in a subpopulation of patients - those with atrial fibrillation.
The investigators have a great deal of experience with stress and rest myocardial perfusion MRI. In a preliminary study imaging three patients with AF that then went to X-ray angiography (cath), two of the three subjects had significant stenoses by cath, and one did not. This agreed with the regadenoson stress perfusion MRI findings. These MRI acquisitions were performed on a Siemens Verio MRI scanner. The Verio operates at twice the magnetic field strength (3 Tesla, or 3T) of most MRI scanners, which operate at 1.5T. The higher magnetic field offers images with significantly less noise (almost twice the signal-to-noise ratio).
Objective: To demonstrate sensitivity/specificity comparable to that reported in meta-analyses of non-AF patients and adenosine (90%/80% [6, 7]), in an atrial fibrillation population while using the time-efficient vasodilator regadenoson that requires only a single IV.
Study Design: This will be a prospective, open-label, comparative trial using MRI. Non-invasive MRI measurements of resting flow and flow at regadenoson stress will be obtained in each subject during a one hour MRI exam using our advanced MRI acquisition techniques. Sensitivity/specificity of regadenoson stress MRI will be determined using x-ray angiography as the standard. X-ray angiography will be done as standard-of-care, and is not an intervention of this clinical trial.
Study Procedure: Each subject will undergo a single MRI scanning session. Caffeine will be stopped 12 hours prior to the procedure. One IV will be started and subjects positioned in the scanner. Resting perfusion with Multihance Gd-BOPTA contrast agent will be performed first. The perfusion acquisition acquires 3-6 short axis slices each heartbeat and lasts for one minute. Then a standard regadenoson injection of 400ug/5cc will be given and MR imaging performed with a Gd-BOPTA contrast agent bolus 60-100 seconds later [9] [10].
Study design
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Regadenoson MRI | Experimental | Drug: Regadenoson MRI, Drug: Gadobenate dimeglumineParticipants with AF receiving regadenoson stress MRI, using Gadobenate dimeglumine |
Who may qualify
- Ages
- 18 to 100 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Patients with confirmed persistent or paroxysmal AF and suspected coronary artery disease who will undergo catheterization X-ray angiography
Key exclusion criteria (5 listed)
- Critically ill patients, patients on ventilators patients with hypotension, asthmatics, and other patients whose medical care or safety may be compromised from undergoing an MRI examination will be excluded.
- Patients with claustrophobia will also be excluded since MRI is conducted in a closed environment.
- Patients with contraindications to MRI (pacemaker, metal implants).
- Pregnant subjects (or women who may become pregnant), minors, and prisoners will be excluded from this study.
- Subjects are over 60 or have any suspicion of abnormal kidney function (a blood test to determine Glomerular filtration rate (GFR) will be performed prior to imaging. Subjects with GFR<30 will be excluded from the study. This is standard practice for clinical scans in Radiology due to the extremely small but not negligible relationship between gadolinium contrast agent and nephrogenic systemic fibrosis in patients with severely impaired renal function.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Regadenoson MRIAlso: LexiscanAF patients will be provided with a regadenoson stress MRI to see if coronary artery disease can be detected with more sensitivity /specificity. | Drug | Regadenoson MRI |
| Gadobenate dimeglumineAlso: Gd-BOPTA, MultihanceResting perfusion with Multihance Gd-BOPTA contrast agent will be performed first, then a regadenoson injection will be given and MR imaging performed with a Gd-BOPTA contrast agent bolus 60-100 seconds later. | Drug | Regadenoson MRI |
Primary outcome
Sensitivity of Regadenoson Stress-MRI for Detection of Coronary Artery Disease (CAD)
Time frame: one MRI, up to 1 hour
Determination of sensitivity of Regadenoson stress-MRI in the detection of CAD, using x-ray angiography as the standard. Perfusion images interpreted by three blinded readers as normal or abnormal; majority results of the three blinded readers are reported.
Specificity of Regadenoson Stress-MRI for Detection of Coronary Artery Disease (CAD)
Time frame: one MRI, up to 1 hour
Determination of specificity of Regadenoson stress-MRI in the detection of CAD, using x-ray angiography as the standard. Perfusion images interpreted by three blinded readers as normal or abnormal; majority results of the three blinded readers are reported.
1 secondary outcome
Accuracy of Regadenoson Stress-MRI for Detection of Coronary Artery Disease (CAD)
Time frame: one MRI, up to 1 hour
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Dec 2017.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 15313941Lloyd-Jones DM, Wang TJ, Leip EP, Larson MG, Levy D, Vasan RS, D'Agostino RB, Massaro JM, Beiser A, Wolf PA, Benjamin EJ. Lifetime risk for development of atrial fibrillation: the Framingham Heart Study. Circulation. 2004 Aug 31;110(9):1042-6. doi: 10.1161/01.CIR.0000140263.20897.42. Epub 2004 Aug 16.
- Background: PubMed 19808575Nucifora G, Schuijf JD, Tops LF, van Werkhoven JM, Kajander S, Jukema JW, Schreur JH, Heijenbrok MW, Trines SA, Gaemperli O, Turta O, Kaufmann PA, Knuuti J, Schalij MJ, Bax JJ. Prevalence of coronary artery disease assessed by multislice computed tomography coronary angiography in patients with paroxysmal or persistent atrial fibrillation. Circ Cardiovasc Imaging. 2009 Mar;2(2):100-6. doi: 10.1161/CIRCIMAGING.108.795328. Epub 2009 Jan 26.
- Background: PubMed 15337220Abidov A, Hachamovitch R, Rozanski A, Hayes SW, Santos MM, Sciammarella MG, Cohen I, Gerlach J, Friedman JD, Germano G, Berman DS. Prognostic implications of atrial fibrillation in patients undergoing myocardial perfusion single-photon emission computed tomography. J Am Coll Cardiol. 2004 Sep 1;44(5):1062-70. doi: 10.1016/j.jacc.2004.05.076.
- Background: PubMed 20022875Smit MD, Tio RA, Slart RH, Zijlstra F, Van Gelder IC. Myocardial perfusion imaging does not adequately assess the risk of coronary artery disease in patients with atrial fibrillation. Europace. 2010 May;12(5):643-8. doi: 10.1093/europace/eup404. Epub 2009 Dec 17.
- Background: PubMed 17903634Nandalur KR, Dwamena BA, Choudhri AF, Nandalur MR, Carlos RC. Diagnostic performance of stress cardiac magnetic resonance imaging in the detection of coronary artery disease: a meta-analysis. J Am Coll Cardiol. 2007 Oct 2;50(14):1343-53. doi: 10.1016/j.jacc.2007.06.030. Epub 2007 Sep 17.
- Background: PubMed 20482819Hamon M, Fau G, Nee G, Ehtisham J, Morello R, Hamon M. Meta-analysis of the diagnostic performance of stress perfusion cardiovascular magnetic resonance for detection of coronary artery disease. J Cardiovasc Magn Reson. 2010 May 19;12(1):29. doi: 10.1186/1532-429X-12-29.
- Background: PubMed 15493698Ablitt NA, Gao J, Keegan J, Stegger L, Firmin DN, Yang GZ. Predictive cardiac motion modeling and correction with partial least squares regression. IEEE Trans Med Imaging. 2004 Oct;23(10):1315-24. doi: 10.1109/TMI.2004.834622.
- BackgroundS. E. Litwin, J. Fluckiger, L. Chen, T. H. Kim, N. Pack, B. Matthews, C. McGann, R. Jiji, et al. Does fixed-dose regadenoson induce comparable myocarial perfusion reserve in patients of widely varying body size? A quantitative MRI study. American Heart Association, chicago, 2010.
- BackgroundO. J. Booker, P. Bandettini, P. Kellman, J. Wilson, S. Leung, S. Vasu, S. Shanbhag, J. Henry, et al. Time resolved measure of coronary sinus flow following regadenoson administration. Journal of cardiovascular magnetic resonance, 13(1): O74, 2011.
- Background: PubMed 10323817Harper R, Reeves B. Reporting of precision of estimates for diagnostic accuracy: a review. BMJ. 1999 May 15;318(7194):1322-3. doi: 10.1136/bmj.318.7194.1322. No abstract available.
- Derived from this study: PubMed 28528431Bieging ET, Haider I, Adluru G, Chang L, Suksaranjit P, Likhite D, Shaaban A, Jensen L, Wilson BD, McGann CJ, DiBella E. Rapid rest/stress regadenoson ungated perfusion CMR for detection of coronary artery disease in patients with atrial fibrillation. Int J Cardiovasc Imaging. 2017 Nov;33(11):1781-1788. doi: 10.1007/s10554-017-1168-1. Epub 2017 May 20.
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Atrial Fibrillation (AF)
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Brent Wilson, MD principal investigator
University of Utah
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Regadenoson MRI and Gadobenate dimeglumine in people with Atrial Fibrillation and Coronary Artery Disease, run by University of Utah 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 1 inclusion and 5 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 13 Dec 2017. 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?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 7 Nov 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Sensitivity of Regadenoson Stress-MRI for Detection of Coronary Artery Disease (CAD) (time frame: one MRI, up to 1 hour). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01710254, which also lists 11 linked publications.
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 13 Dec 2017.