- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT00892307
Adenosine Dual Source Computed Tomography (CT) Versus Adenosine Single Photon Emission Computed Tomography (SPECT)
Coronary Anatomy and Physiology Using Multidetector Dual Source Computed Tomography With Adenosine Enhancement: Comparative Study With SPECT Imaging: Pilot Studies I/II
Studieoversikt
Status
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
The DSCT scanner is able to assess cardiac blood flow (myocardial perfusion) at the same time as coronary anatomy. The results derived from these scans will be compared to standard SPECT imaging.
To further evaluate obstruction in the coronary arteries, physicians may refer for an invasive Coronary Angiogram, the current gold standard for diagnosis of Coronary Artery Disease (CAD). By validating the DSCT scanner as a system with which to assess the extent of obstruction in the coronary arteries, physicians may be able to lessen the occurrence of an invasive exam.
Procedures: Each pilot anticipates enrolling 20 subjects.
Pilot 1: Clinical Follow-up Rest/Stress Adeno-SPECT and Research Stress /Rest Adeno-DSCT obtained in the same patient during the same period of stress testing
- Radiation: Thallium injection for rest SPECT
- Drug: Single dose Adenosine Infusion for DSCT and SPECT
- Radiation: Sestamibi injection for stress SPECT
- Drug: CT contrast
- Radiation: Stress DSCT /Rest DSCT
Pilot 2: Research Stress/ Rest Adeno-DSCT obtained within 30 days of initial positive SPECT finding
- Drug: Adenosine Infusion for DSCT
- Drug: CT contrast
- Radiation: Stress DSCT /Rest DSCT
Both pilot studies will relate results to subject history, ECG and cardiac angiogram, if available
Studietype
Registrering (Faktiske)
Kontakter og plasseringer
Studiesteder
-
-
California
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Los Angeles, California, Forente stater, 90048
- Cedars-Sinai Medical Center
-
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
Pilot 1:
Inclusion Criteria:
- Provide written consent and are willing to comply with protocol requirements
- Are at least 18 years of age
- Are referred for clinically-ordered SPECT
- Have known CAD
Exclusion Criteria:
- Patients being referred to invasive coronary angiography will not be included in this pilot
- Caffeine intake within the 24 hours prior to adenosine stress testing
- Pregnancy (known or suspected)
- Intolerance or contraindication to adenosine (severe Asthma…)
- Intake of methylxanthine containing medications such as theophylline that have not been withdrawn and would interfere with the effectiveness of adenosine.
- Unstable coronary syndromes
- Uncontrolled congestive cardiac failure or cardiogenic shock
- Uncontrolled hypertension with resting BP > 200/110
- More than 30 days between the Adeno-SPECT and the Adeno-DSCT
- Revascularization (percutaneous coronary intervention or coronary artery bypass graft surgery) between the Adeno-SPECT and the Adeno-DSCT
- Change in clinical status as determined by the investigator
- Inability to be on same medication regime 24 hrs prior to Adeno-SPECT and Adeno DSCT
- Patients with chronic renal failure (C.C.T. < 60 ml/m2/sec)
- Patients with allergy to contrast iodinated media
- Congestive heart failure
- History of thromboembolic disorders
- Multiple myeloma
- Hyperthyroidism
- Pheochromocytoma
- Atrial fibrillation
- Inability to perform breath hold for 12 seconds
Pilot 2:
All inclusions/exclusions are the same as Pilot 1, WITH THE ADDITION OF:
Inclusion Criteria:
- Have had prior (within 30 days) positive Adeno-SPECT scan
Exclusion Criteria:
- Patients with contraindications to coronary angiography
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Hva måler studien?
Primære resultatmål
Resultatmål |
Tidsramme |
---|---|
To show that adenosine enhanced DSCT will enhance regular Multidetector Spiral Computed Tomography (MSCT) "diagnostic power" to detect significant (e.g., > 50%) coronary stenosis
Tidsramme: One day
|
One day
|
Sekundære resultatmål
Resultatmål |
Tidsramme |
---|---|
To assess coronary anatomical results obtained by CT Angiography (CTA) at high heart rates in terms of the rate of assessable coronary segments.
Tidsramme: One day
|
One day
|
Samarbeidspartnere og etterforskere
Sponsor
Samarbeidspartnere
Etterforskere
- Hovedetterforsker: Daniel S Berman, MD, Cedars-Sinai Medical Center
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
- Myokardiskemi
- Hjertesykdommer
- Kardiovaskulære sykdommer
- Vaskulære sykdommer
- Arteriosklerose
- Arterielle okklusive sykdommer
- Koronar sykdom
- Koronararteriesykdom
- Fysiologiske effekter av legemidler
- Nevrotransmittere agenter
- Molekylære mekanismer for farmakologisk virkning
- Anti-arytmimidler
- Vasodilaterende midler
- Agenter fra det perifere nervesystemet
- Analgetika
- Sensoriske systemagenter
- Purinergiske midler
- Purinergiske P1-reseptoragonister
- Purinergiske agonister
- Adenosin
Andre studie-ID-numre
- IRB # 10928/11143
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