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The National CT Colonography Trial (ACRIN6664)

30 november 2020 bijgewerkt door: American College of Radiology Imaging Network

The National CT Colonography Trial: Multicenter Assessment of Accuracy for Detection of Large Adenomas and Cancers in a Healthy Screening Population

RATIONALE: New diagnostic procedures such as computed tomographic colonography may improve the ability to detect colorectal cancer and may provide a less invasive method of detection.

PURPOSE: This clinical trial is studying how well computed tomographic colonography works in screening healthy participants for colorectal cancer.

Studie Overzicht

Toestand

Voltooid

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

OBJECTIVES:

Primary

  • Compare the sensitivity of computed tomographic colonography (CTC) vs colonoscopy for detecting significantly large lesions (≥ 10 mm in diameter) in asymptomatic participants, in terms of specificity, area under the ROC curve, and predictive values for detecting clinically significant colorectal neoplasia.

Secondary

  • Determine the interobserver variation in accuracy of interpreting CTC examinations of these participants, including any benefits of a primary 3-dimensional read and/or independent second interpretations.
  • Determine the effects of different colon preparations on the accuracy of CTC in these participants.
  • Compare participant acceptance and willingness to have a repeat examination by CTC vs colonoscopy.
  • Determine the accuracy of CTC in detecting flat lesions in the colon of these participants.

OUTLINE: This is a multicenter study.

Participants receive an oral laxative, oral bisacodyl, and three doses of oral barium sulphate 24 hours before imaging. After cathartic cleansing, participants undergo computed tomographic colonography followed by colonoscopy.

Participants are followed up for approximately 4 weeks.

PROJECTED ACCRUAL: A total of 2,607 participants will be accrued for this study.

Studietype

Ingrijpend

Inschrijving (Werkelijk)

2600

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

  • Verenigde Staten
    • Arizona
      • Scottsdale, Arizona, Verenigde Staten, 85259-5499
        • Mayo Clinic Scottsdale
    • California
      • La Jolla, California, Verenigde Staten, 92093-0658
        • Moores UCSD Cancer Center
      • Los Angeles, California, Verenigde Staten, 90095-1781
        • Jonsson Comprehensive Cancer Center at UCLA
      • San Francisco, California, Verenigde Staten, 94121
        • Veterans Affairs Medical Center - San Francisco
    • Colorado
      • Englewood, Colorado, Verenigde Staten, 80112
        • Invision/Radiology Imaging Associates - Englewood
    • Connecticut
      • New Haven, Connecticut, Verenigde Staten, 06520-8028
        • Yale Cancer Center
    • Illinois
      • Chicago, Illinois, Verenigde Staten, 60637-1470
        • University of Chicago Cancer Research Center
      • Springfield, Illinois, Verenigde Staten, 62781
        • Clinical Radiologists, S.C. at Memorial Medical Center
    • Maryland
      • Baltimore, Maryland, Verenigde Staten, 21231-2410
        • Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
    • Massachusetts
      • Boston, Massachusetts, Verenigde Staten, 02215
        • Beth Israel Deaconess Medical Center
    • Minnesota
      • Rochester, Minnesota, Verenigde Staten, 55905
        • Mayo Clinic Cancer Center
    • Missouri
      • Saint Louis, Missouri, Verenigde Staten, 63110
        • Mallinckrodt Institute of Radiology at Washington University Medical Center
    • Texas
      • Houston, Texas, Verenigde Staten, 77030-4009
        • M.D. Anderson Cancer Center at University of Texas
    • Virginia
      • Richmond, Virginia, Verenigde Staten, 23298-0037
        • Virginia Commonwealth University Massey Cancer Center

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

50 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Ja

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

  1. Inclusion Criteria

    • Male or female outpatients
    • Aged 50 years or older
    • Scheduled for screening colonoscopy
    • Participant's signed informed consent

  2. Exclusion Criteria

    • Symptoms of disease of the lower gastrointestinal tract, including

      • Melanotic stools or/and hematochezia on more than one occasion in the previous six months
      • Lower abdominal pain that would normally require a medical evaluation
    • Inflammatory bowel disease and/or familial polyposis syndrome
    • Serious medical conditions that would increase the risk associated with colonoscopy or are so severe that screening would have no benefit
    • Pregnancy
    • Previous colonoscopy within the past five years
    • Anemia (hemoglobin less than 10 gm/dl)
    • Positive fecal occult blood test (FOBT)

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Screening
  • Toewijzing: NVT
  • Interventioneel model: Opdracht voor een enkele groep
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: CT Colonography
CT colonography conducted during the same assessment as colonoscopy.
Procedure: CT Colonography
CT colonography performed for comparison with colonoscopy results performed during the same screening assessment.
Andere namen:
  • colonoscopie
  • CT colonography trial

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Number of Participants With Advanced Adenomas (>=10mm) as Determined by Colonoscopy (Per Patient)
Tijdsspanne: within 30 days

Pathology results from Colonoscopy performed up to 30 days after a CTC examination were used as the reference standard (RS) for determining the existence of advanced adenomas.

RS+: Colonoscopy found at least 1 Advanced adenomas >=10mm (as measured at pathology) RS-: No Advanced adenomas >=10mm found by colonoscopy (as measured at pathology)
within 30 days
Number of Participants With Advanced Adenomas (>=9mm) Detected by CT Colonoscopy (Per Patient)
Tijdsspanne: within 30 days

Pathology results from Colonoscopy performed up to 30 days after a CTC examination were used as the reference standard (RS) for determining the existence of advanced adenomas.

RS+: Colonoscopy found at least 1 Advanced adenomas >=9mm (as measured at pathology) RS-: No Advanced adenomas >=9mm found by colonoscopy (as measured at pathology)
within 30 days
Number of Participants With Advanced Adenomas (>=8mm) Detected by CT Colonoscopy (Per Patient)
Tijdsspanne: within 30 days

Pathology results from Colonoscopy performed up to 30 days after a CTC examination were used as the reference standard (RS) for determining the existence of advanced adenomas.

RS+: Colonoscopy found at least 1 Advanced adenomas >=8mm (as measured at pathology) RS-: No Advanced adenomas >=8mm found by colonoscopy (as measured at pathology)
within 30 days
Number of Participants With Advanced Adenomas (>=7mm) Detected by CT Colonoscopy (Per Patient)
Tijdsspanne: within 30 days

Pathology results from Colonoscopy performed up to 30 days after a CTC examination were used as the reference standard (RS) for determining the existence of advanced adenomas.

RS+: Colonoscopy found at least 1 Advanced adenomas >=7mm (as measured at pathology) RS-: No Advanced adenomas >=7mm found by colonoscopy (as measured at pathology)
within 30 days
Number of Participants With Advanced Adenomas (>=6mm) Detected by CT Colonoscopy (Per Patient)
Tijdsspanne: within 30 days

Pathology results from Colonoscopy performed up to 30 days after a CTC examination were used as the reference standard (RS) for determining the existence of advanced adenomas.

RS+: Colonoscopy found at least 1 Advanced adenomas >=6mm (as measured at pathology) RS-: No Advanced adenomas >=16mm found by colonoscopy (as measured at pathology)
within 30 days
Number of Participants With Advanced Adenomas (>=5mm) Detected by CT Colonoscopy (Per Patient)
Tijdsspanne: within 30 days

Pathology results from Colonoscopy performed up to 30 days after a CTC examination were used as the reference standard (RS) for determining the existence of advanced adenomas.

RS+: Colonoscopy found at least 1 Advanced adenomas >=5mm (as measured at pathology) RS-: No Advanced adenomas >=5mm found by colonoscopy (as measured at pathology)
within 30 days

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Number of Advanced Adenoma or Cancer Lesions (>=10mm) Detected by CT Colonoscopy (Per Lesion)
Tijdsspanne: within 30 days
Pathology results from Colonoscopy performed up to 30 days after a CTC examination were used as the reference standard for determining the existence of advanced adenomas. CTC lesions needed to be within 2 segments and 50% size of the lesions removed via colonoscopy to be considered "detected"
within 30 days
Number of Advanced Adenoma or Cancer Lesions (>=9mm) Detected by CT Colonoscopy (Per Lesion)
Tijdsspanne: within 30 days
Pathology results from Colonoscopy performed up to 30 days after a CTC examination were used as the reference standard for determining the existence of advanced adenomas. CTC lesions needed to be within 2 segments and 50% size of the lesions removed via colonoscopy to be considered "detected"
within 30 days
Number of Advanced Adenoma or Cancer Lesions (>=8mm) Detected by CT Colonoscopy (Per Lesion)
Tijdsspanne: within 30 days
Pathology results from Colonoscopy performed up to 30 days after a CTC examination were used as the reference standard for determining the existence of advanced adenomas. CTC lesions needed to be within 2 segments and 50% size of the lesions removed via colonoscopy to be considered "detected"
within 30 days
Number of Advanced Adenoma or Cancer Lesions (>=7mm) Detected by CT Colonoscopy (Per Lesion)
Tijdsspanne: within 30 days
Pathology results from Colonoscopy performed up to 30 days after a CTC examination were used as the reference standard for determining the existence of advanced adenomas. CTC lesions needed to be within 2 segments and 50% size of the lesions removed via colonoscopy to be considered "detected"
within 30 days
Number of Advanced Adenoma or Cancer Lesions (>=6mm) Detected by CT Colonoscopy (Per Lesion)
Tijdsspanne: within 30 days
Pathology results from Colonoscopy performed up to 30 days after a CTC examination were used as the reference standard for determining the existence of advanced adenomas. CTC lesions needed to be within 2 segments and 50% size of the lesions removed via colonoscopy to be considered "detected"
within 30 days
Number of Advanced Adenoma or Cancer Lesions (>=5mm) Detected by CT Colonoscopy (Per Lesion)
Tijdsspanne: within 30 days
Pathology results from Colonoscopy performed up to 30 days after a CTC examination were used as the reference standard for determining the existence of advanced adenomas. CTC lesions needed to be within 2 segments and 50% size of the lesions removed via colonoscopy to be considered "detected"
within 30 days
Interobserver Sensitivity Variability
Tijdsspanne: at baseline
Evaluate interobserver variability in Sensitivity (P(T+|D+)) and 95% CI) when interpreting CTC examinations Each study was randomly assigned to be read independently using either a primary 2D search method (conventional 2D image display with 3D endoluminal problem solving), or a primary 3D search method (including the capability of displaying multiplanar 2D) and without prior knowledge of the colonoscopy results. A second trained radiologist of similar skill was assigned to read the images using the other modality Readers were then classified as high performing or not high performing
at baseline

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

American College of Radiology Imaging Network

Medewerkers

National Cancer Institute (NCI)

Onderzoekers

  • Studie stoel: C. Daniel Johnson, MD, Mayo Clinic

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Algemene publicaties

Nuttige links

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start

1 februari 2005

Primaire voltooiing (Werkelijk)

11 september 2007

Studie voltooiing (Werkelijk)

13 mei 2010

Studieregistratiedata

Eerst ingediend

10 juni 2004

Eerst ingediend dat voldeed aan de QC-criteria

10 juni 2004

Eerst geplaatst (Schatting)

11 juni 2004

Updates van studierecords

Laatste update geplaatst (Werkelijk)

22 december 2020

Laatste update ingediend die voldeed aan QC-criteria

30 november 2020

Laatst geverifieerd

1 november 2020

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • CDR0000367101
  • U01CA080098 (Subsidie/contract van de Amerikaanse NIH)
  • U01CA079778 (Subsidie/contract van de Amerikaanse NIH)
  • ACRIN-6664 (Andere identificatie: CIP)

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

JA

Beschrijving IPD-plan

Researchers may request data from the ACRIN data access committee by reviewing the information at:

https://www.acrin.org/RESEARCHERS/POLICIES/DATAANDIMAGESHARINGPOLICY.aspx

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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