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Coronary Artery DiseaseNCT00853671

Myocardial Stress Perfusion Imaging With Dual Source CT

A study testing Adenosine Stress Dual-source CTP in people with Coronary Artery Disease, run by Massachusetts General Hospital at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The investigators propose a novel technique using dual source multidetector computed tomography (DSCT) where information on both coronary anatomy and myocardial perfusion is obtained in a single scan. Read more about this study

Who is it for?
Ages 40 to 90 years
Conditions the study is for
Coronary Artery Disease
What is being tested?
Adenosine Stress Dual-source CTP
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
1 siteUnited States
Study dates
Apr 2008to Apr 2010
Phase
Interventional
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 40 to 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • A prior adenosine or exercise stress SPECT exam with high likelihood of being referred to the cardiac catheterization laboratory for invasive angiogram
  • Age > 40 years old
  • Able to comprehend and sign the consent form.

Who cannot join

  • Acute coronary syndromes (unstable angina, non-ST elevation myocardial infarction, ST elevation myocardial infarction)
  • Unstable clinical conditions (i.e. hemodynamic instability, arrhythmias)
  • Premenopausal women who have a positive pregnancy test.
  • Serum Creatinine level ≥1.5 mg/dl as an indicator of renal insufficiency.
  • Known allergy to iodinated contrast agents
  • Atrial fibrillation
Show all 10Show fewer
  • Asthma
  • Critical aortic stenosis
  • Systolic blood pressure < 90 mmHg
  • Advanced heart block

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Massachusetts General Hospital

    Boston, Massachusetts, 02114

Other trials in United States

About this study

The investigators propose a novel technique using dual source multidetector computed tomography (DSCT) where information on both coronary anatomy and myocardial perfusion is obtained in a single scan. The investigators hypothesize that a coronary CTA protocol can be devised to obtain resting myocardial perfusion, myocardial perfusion after stress, and coronary anatomy. Hence, one diagnostic test will be able to detect the presence of coronary plaque as well as assess the functional significance of a stenosis.

Being tested
Adenosine Stress Dual-source CTP
Keywords
Coronary Artery Disease, Multidetector Computed Tomography, Myocardial Perfusion Imaging
Medical subject headings
Coronary Artery Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Adenosine Stress Dual-source CTPOther

    Also called Adenosine, Iopamidol 370, Siemens SOMATOM Definition

    Adenosine- continuous infusion at 140mcg/ kg/ min for 2.5 min; Iopamidol (IV contrast)- total dose of 150cc; Siemens SOMATOM Definition CT scanner (CT scan radiation) - effective radiation dose of approximately 13mSv (tube voltage 120kV, tube current 340mAs for one retrospectively gated cardiac CT with tube current modulation and two prospectively gated cardiac CTs on a Dual Source scanner)

    This is an observational trial, and all patients will undergo the Adenosine Stress Dual-source CTP procedure.

Study groups in NCT00853671
Study groupRoleWhat they receive
Adenosine Stress Dual-source CTPExperimentalA multiphase adenosine Stress Dual-source stress perfusion computed tomography imaging test, as described above, will be performed in all patients.
Receives: Other: Adenosine Stress Dual-source CTP

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Per-Vessel Sensitivity of CTP in the Detection of Myocardial Perfusion Defects During Pharmacological Stress as Compared to Invasive Angiography.

    The gold standard for abnormality by CTP is defined as a focal stenosis of >50% at quantitative analysis of invasive coronary angiography images, when performed.

    Measured: 18 months

  2. Per-Vessel Specificity of CTP in the Detection of Myocardial Perfusion Defects During Pharmacological Stress as Compared to Invasive Angiography.

    The gold standard for abnormality by CTP is defined as stenosis of 50% or more at quantitative analysis of invasive coronary angiography images, when performed.

    Measured: 18 months

Secondary outcomes (2)
  1. Per-Patient Correlation Between CTP and SPECT at Stress.

    Pearson Correlation between research interpretation of CTP images and SPECT images, both performed during stress.

    Measured: 18 months

  2. Per-Patient Correlation Between CTP and SPECT at Rest.

    Pearson Correlation performed on myocardial abnormalities on CTP and SPECT images, obtained at rest.

    Measured: 18 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Mar 2009 (estimated)
  2. Study startApr 2008
  3. Primary completionApr 2010
  4. Study completionApr 2010

Resources

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 N/A
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00853671
Sponsor's protocol ID
DSCTSTRESS
Status last verified
Jun 2018
First submitted
27 Feb 2009
Last updated
17 Dec 2018
Data monitoring committee
No

Publications

  • Hulten EA, Bittencourt MS, Ghoshhajra B, Blankstein R. Stress CT perfusion: coupling coronary anatomy with physiology. J Nucl Cardiol. 2012 Jun;19(3):588-600. doi: 10.1007/s12350-012-9546-5.

    PubMed 22456969
  • Techasith T, Cury RC. Stress myocardial CT perfusion: an update and future perspective. JACC Cardiovasc Imaging. 2011 Aug;4(8):905-16. doi: 10.1016/j.jcmg.2011.04.017.

    PubMed 21835384
  • Blankstein R, Shturman LD, Rogers IS, Rocha-Filho JA, Okada DR, Sarwar A, Soni AV, Bezerra H, Ghoshhajra BB, Petranovic M, Loureiro R, Feuchtner G, Gewirtz H, Hoffmann U, Mamuya WS, Brady TJ, Cury RC. Adenosine-induced stress myocardial perfusion imaging using dual-source cardiac computed tomography. J Am Coll Cardiol. 2009 Sep 15;54(12):1072-84. doi: 10.1016/j.jacc.2009.06.014.

    PubMed 19744616
  • Rocha-Filho JA, Blankstein R, Shturman LD, Bezerra HG, Okada DR, Rogers IS, Ghoshhajra B, Hoffmann U, Feuchtner G, Mamuya WS, Brady TJ, Cury RC. Incremental value of adenosine-induced stress myocardial perfusion imaging with dual-source CT at cardiac CT angiography. Radiology. 2010 Feb;254(2):410-9. doi: 10.1148/radiol.09091014.

    PubMed 20093513
  • Okada DR, Ghoshhajra BB, Blankstein R, Rocha-Filho JA, Shturman LD, Rogers IS, Bezerra HG, Sarwar A, Gewirtz H, Hoffmann U, Mamuya WS, Brady TJ, Cury RC. Direct comparison of rest and adenosine stress myocardial perfusion CT with rest and stress SPECT. J Nucl Cardiol. 2010 Jan-Feb;17(1):27-37. doi: 10.1007/s12350-009-9156-z.

    PubMed 19936863
  • Uthamalingam S, Gurm GS, Sidhu MS, Verdini DJ, Vorasettakarnkij Y, Engel LC, Blankstein R, Mamuya WS, Hoffman U, Brady TJ, Cury RC, Ghoshhajra BB. Comparison of dual-source 64-slice adenosine stress CT perfusion with stress-gated SPECT-MPI for evaluation of left ventricular function and volumes. J Cardiovasc Comput Tomogr. 2012 Jan-Feb;6(1):24-30. doi: 10.1016/j.jcct.2011.10.016. Epub 2011 Nov 18.

    PubMed 22222164
  • Ghoshhajra BB, Maurovich-Horvat P, Techasith T, Medina HM, Verdini D, Sidhu MS, Blankstein R, Brady TJ, Cury RC. Infarct detection with a comprehensive cardiac CT protocol. J Cardiovasc Comput Tomogr. 2012 Jan-Feb;6(1):14-23. doi: 10.1016/j.jcct.2011.10.014. Epub 2011 Nov 18.

    PubMed 22210535
  • Ghoshhajra BB, Rogers IS, Maurovich-Horvat P, Techasith T, Verdini D, Sidhu MS, Drzezga NK, Medina HM, Blankstein R, Brady TJ, Cury RC. A comparison of reconstruction and viewing parameters on image quality and accuracy of stress myocardial CT perfusion. J Cardiovasc Comput Tomogr. 2011 Nov-Dec;5(6):459-66. doi: 10.1016/j.jcct.2011.10.011. Epub 2011 Oct 31.

    PubMed 22146505

Questions about this trial

What is this clinical trial studying?

A study testing Adenosine Stress Dual-source CTP in people with Coronary Artery Disease, run by Massachusetts General Hospital 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 3 inclusion and 10 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 17 Dec 2018. 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.

Are results available for this study?

Yes. Results are posted in the registry (first posted 17 Dec 2018). 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?

Per-Vessel Sensitivity of CTP in the Detection of Myocardial Perfusion Defects During Pharmacological Stress as Compared to Invasive Angiography. (time frame: 18 months). 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 NCT00853671, which also lists 8 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 17 Dec 2018.

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