- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT01153555
Fractional Flow Reserve and Intravascular Ultrasound RelationShip STudy (FIRST)
Fractional Flow Reserve and Intravascular Ultrasound RelationShip STudy: The FIRST Study
Studieoversikt
Status
Forhold
Detaljert beskrivelse
Studietype
Registrering (Faktiske)
Kontakter og plasseringer
Studiesteder
-
-
District of Columbia
-
Washington, District of Columbia, Forente stater, 20010
- Washingtoon Hospital Center
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
Inclusion Criteria:
- Sign written informed consent to participate in the study.
- Clinical indication for coronary angiography for stable or unstable angina
Specific Angiographic Inclusion Criteria:
- Patients required to have an intermediate coronary lesion (stenosis 40-80% by visual estimate) in one or more native, major epicardial coronary artery with reference diameter ≥2.5mm (visual estimate)
- The vessel(s) with the intermediate lesion must have no flow limiting lesions and must be available for imaging and must be considered safe for imaging evaluation.
Exclusion Criteria:
- Patient has had a documented acute ST-segment elevation myocardial infarction within the past 24 hours
- Decompensated heart failure or hypotension requiring intubation, inotropes, intravenous diuretics or intraaortic balloon counterpulsation.
- Renal dysfunction (creatinine clearance < 60 mL/min/1.73m2)
- Pregnancy or breast-feeding
- Standard contra-indications to MRI for implanted ferro-magnetic devices - i.e.: pacemakers, defibrillator (AICD), and aneurysm clips
- Body weight > 400lbs
- Left ventricular hypertrophy >1.5cm by by echocardiogram
- History of bronchospasm or asthma
- ECG evidence of conduction defect, including 2nd or 3rd degree AVB
- Patient has a known hypersensitivity, allergy or contraindication to gadolinium-based contrast agents.
- Prior participation in this study or patient is currently enrolled in another investigational use device or drug study that has not reached its primary endpoint. If the patient is enrolled in another study that is not investigational, required visits for that trial must not interfere with the conduct of this trial.
Angiographic Exclusion Criteria:
- Unprotected left main lesion location.
- Ostial lesion
- Angiographic evidence of severe calcification or marked tortuosity of the target vessel that would preclude safe imaging
- Lesion is located within or distal to an arterial or saphenous vein graft.
- Angiographic presence of thrombus in the lesion or vessel studied.
- Lesion in a vessel with <2.5 mm reference diameter or with more than one lesion in the vessel
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
---|
Intermediate coronary lesions
Diagnostic device: FFR Diagnostic device: IVUS RF At participating centers, FFR and IVUS are standard of care diagnostic procedures for patients with intermediate (40-80% angiographic stenosis by visual estimate). Both modalities were used regularly for such patients whether or not they are participants in this clinical study. In FIRST, the decision to perform percutaneous coronary intervention (PCI) was left to the discretion of the investigator, and was not dictated by the clinical protocol. |
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
---|---|---|
Correlation between (Minimum Luminal Area) MLA and FFR
Tidsramme: Day of Procedure
|
The correlation between MLA and FFR; and the threshold value for MLA corresponding to an FFR < 0.8.
|
Day of Procedure
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
---|---|---|
Correlation between FFR and IVUS and VH parameters
Tidsramme: Day of Procedure
|
Correlation between FFR and various IVUS measurements (MLA,area stenosis, lesion length, plaque burden) and VH parameters (plaque type and presence of a TCFA)
|
Day of Procedure
|
Association of FFR and Cut-off of MLA
Tidsramme: Day of Procedure
|
Assess the association between FFR <0.75 and 0.8 and determined cut-off of MLA with presence of a Thin Cap Fibro-Atheroma(TCFA) and/or plaque burden ≥70%
|
Day of Procedure
|
Identify risk score model
Tidsramme: 1 year
|
To identify a risk score model taking into account IVUS measurements (MLA, plaque burden, area stenosis, lesion length) and VH parameters (plaque type and presence of TCFA) associated with FFR < 0.8
|
1 year
|
Samarbeidspartnere og etterforskere
Sponsor
Etterforskere
- Hovedetterforsker: Ron Waksman, MD, MedStar Health Research Institute
Publikasjoner og nyttige lenker
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
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- FIRST
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