The Impact of Oral Contrast in Multidetector CT of the Abdomen and Pelvis on Radiologist Confidence

August 1, 2012 updated by: Hartford Hospital

The Impact of Oral Contrast in Multidetector CT of the Abdomen and Pelvis on Radiologist Confidence: A Randomized Controlled Trial

The investigators seek to demonstrate the non-superiority of oral contrast versus no oral contrast in intravenously enhanced CT in the outpatient setting. The investigators want to decrease preparation time for the patient and decrease delay in obtaining the study which will ultimately lead to faster results and an increased level of patient convenience.

The investigators hypothesis: Oral contrast does not significantly affect the diagnostic confidence of interpreting radiologists in intravenously enhanced abdominal CT scans.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This study will be a randomized controlled trial comparing radiologist confidence when faced with an intravenously enhanced study with and without oral contrast. At the time of making the appointment, the clerk will ask the patient if he/she wishes to participate in a research study about the impact of oral contrast. If the patient assents, he/she will receive a phone call from a research assistant to obtain informed consent. The first ten patients to call the office to schedule a scan using a 64 slice MDCT will be recruited and randomized if they consent.

Subjects will be randomized at the time of recruitment, which will be when he/she calls to make the appointment for the exam, in a 1:1 ratio between the control arm (contrast) and the experimental arm (no contrast). The control arm will either pick up their two bottles of oral contrast at a radiology office or have the bottles mailed to them as is currently the standard. They will drink the oral contrast two hours before the study. They will also ingest 300 mL of water immediately prior to imaging and be administered the standard intravenous contrast dose. The experimental group will not be mailed or given any oral contrast. They will arrive at their appointment and ingest 300 mL of water immediately prior to the exam as well as the standard intravenous contrast dose and be scanned. This design will eliminate the need to repeat scanning patients, thus decreasing radiation dose. A patient satisfaction survey will be given to each patient following the exam and handed to the technologist

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
216

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • Connecticut
      • Hartford, Connecticut, United States, 06102
        • Recruiting
        • Jefferson Radiology
        • Sub-Investigator:
          • Steve Lee, MD
        • Contact:
        • Sub-Investigator:
          • Bret Coughlin, MD
        • Principal Investigator:
          • Christopher M Garcia, MD MHS
        • Sub-Investigator:
          • Doug Moote, MD
        • Sub-Investigator:
          • Michael O'Loughlin, MD
        • Sub-Investigator:
          • Davika Jajoo, MD
        • Sub-Investigator:
          • Steve Boe, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

21 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • order for "Contrast Enhanced abdomen CT" or "Contrast Enhanced abdomen/pelvis CT"

    • age ≥21
    • able and willing to give consent

Exclusion Criteria:

  • • allergy to IV contrast

    • order for non-contrast CT
    • <21
    • pregnant woman
    • order for enterography or colonography
    • history of Crohn's Disease or Ulcerative Colitis

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Other: Standard of Care
Patients will get routine CT scans with Oral and Intravenous contrast prior to their CT scan as is routine, standard practice
Other: Withhold oral contrast
The intervention is to withhold oral contrast
Experimental: Withold Oral Contrast
Subjects will not drink oral contrast, but instead water (in itself a type of contrast agent) prior to their CT. Intravenous contrast will be administered as is routine
Other: Withhold oral contrast
The intervention is to withhold oral contrast

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Radiologist Confidence
Time Frame: one-time measurement after scan completion
Confidence graded by the radiologist on a scale of 1 to 10
one-time measurement after scan completion

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Hartford Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Christopher M Garcia, MD MHS, Hartford Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 1, 2012

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2013

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2013

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 31, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 1, 2012

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 2, 2012

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 2, 2012

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 1, 2012

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2012

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • GARC003501

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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