Crohn's DiseaseNCT02341755
Dual Energy Computerized Tomography (DE-CT) in Patients With Crohn's Disease
An observational study of Crohn's Disease, run by Shaare Zedek Medical Center at 1 site in Israel.
Trial summary
This study aims to evaluate the accuracy of dual energy computerized tomography (DE-CT) in predicting the need for surgery in patients with Crohn's disease and intestinal lesions with obstructive symptoms. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Crohn's Disease
- How many people
- 38 participants
- Where
- 1 siteIsrael
- Study dates
- May 2012to Nov 2014
- Phase
- Observational
- Are there results?
- None posted in the registry
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 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Patients with known Crohn's disease undergoing abdominal CT for possible obstructive presentation
Who may be able to join
- Age over 18 years,
- known Crohn's disease (at least 3 moths prior)
- obstructive symptoms
- scheduled for abdominal CT for evaluation of symptoms (regardless of participation in the study)
Who cannot join
- Pregnancy
- Contraindication to perform CT with IV contrast media
Trial locations and contacts
1 site in 1 country.
Israel1 site
Shaare Zedek Medical Center affiliated with Hebrew University
Jerusalem, 91031
About this study
Official title: Dual Energy Computerized Tomography (DE-CT) for Evaluation of Obstructive Intestinallesions in Patients With Crohn's Disease
This study aims to evaluate the accuracy of dual energy computerized tomography (DE-CT) in predicting the need for surgery in patients with Crohn's disease and intestinal lesions with obstructive symptoms.
Patients with known Crohn's disease which were scheduled to perform abdominal CT for obstructive symptoms preformed it in a dual energy protocol and then followed for an outcome of surgery. DE-CT parameters were then compared between patients who underwent surgery and those who did not.
Read the detailed description
INTRODUCTION Intestinal strictures are common in patients with Crohn's (CD) disease and may result in intestinal obstruction. Current available imaging studies can usually identify and locate the stricture, but can not reliably differentiate the patients who will require surgery from those who will respond to medical therapy.
Dual Energy computerized tomography (DE-CT) uses two energy sources using high and low tube voltage, thus creating two data sets. Dedicated software creates overlay of the low and high energy images, in which enhancement of tissues with iodine can be better appreciated and quantified compared to standard CT. The investigators hypothesize that dual energy can better visualize the iodine uptake in bowl wall as a marker of inflammation within intestinal lesions, and may help in identifying the patients who will or will not require surgery.
AIM To evaluate the efficacy of DE-CT studies in predicting need for surgery within 3 months.
METHODS Patients with known CD undergoing abdominal CT for possible obstructive presentation prospectively underwent a DE-CT using intravenous iodinated contrast material, and were followed for 3 months for an outcome of surgery.
The DE-CT was interpreted by a radiologist blinded to the clinical outcome, and the attending physicians of the patients were blinded to the interpretation of the DE-CT. DE-CT parameters were then compared between patients who underwent surgery and those who did not. Receiver operating characteristic (ROC) curve analysis was used to find the optimal cut off point to distinguish between patients which did or did not eventually underwent surgery. Based on the cut off points found from the ROC analysis, the negative and positive predictive values were calculated.
- Conditions
- Crohn's Disease
- Medical subject headings
- Crohn Disease
What is being measured
The primary outcome is the main question the study is designed to answer.
Abdominal surgery
Measured: 3 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Jan 2015 (estimated)
- Study startMay 2012
- Primary completionApr 2014
- Study completionNov 2014
Why it stopped: Interim analysis was sufficient to demonstrate accuracy of the evaluated test
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Crohn's DiseaseStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 38 participants (actual)
Sponsor and investigators
- Lead sponsor
- Shaare Zedek Medical Center
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Tomer Adar, Shaare Zedek Medical Center
- Investigators
- Tomer Adar, MD, Principal investigator, Shaare Zedek Medical Center affiliated with Hebrew University, Jerusalem, Israel.
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02341755
- Sponsor's protocol ID
- 47/12
- Status last verified
- Jan 2015
- First submitted
- 11 Jan 2015
- Last updated
- 19 Jan 2015
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 19 Jan 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Dual Energy Computerized Tomography (DE-CT) for Evaluation of Obstructive Intestinallesions in Patients With Crohn's Disease
- ClinicalTrials.gov ID
- NCT02341755
- Acronym / sponsor ID
- 47/12
- Conditions
- Crohn's Disease
- Study type
- Observational
- Recruitment status
- TerminatedReason stopped: Interim analysis was sufficient to demonstrate accuracy of the evaluated test
- Enrolment
- 38 participants (actual)
- Lead sponsor
- Shaare Zedek Medical CenterUniversity, hospital or other
- Study start
- May 2012
- Primary completion
- Apr 2014 (actual)
- Study completion
- Nov 2014 (actual)
- First posted
- 19 Jan 2015 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study aims to evaluate the accuracy of dual energy computerized tomography (DE-CT) in predicting the need for surgery in patients with Crohn's disease and intestinal lesions with obstructive symptoms.
Patients with known Crohn's disease which were scheduled to perform abdominal CT for obstructive symptoms preformed it in a dual energy protocol and then followed for an outcome of surgery. DE-CT parameters were then compared between patients who underwent surgery and those who did not.
Detailed description
INTRODUCTION Intestinal strictures are common in patients with Crohn's (CD) disease and may result in intestinal obstruction. Current available imaging studies can usually identify and locate the stricture, but can not reliably differentiate the patients who will require surgery from those who will respond to medical therapy.
Dual Energy computerized tomography (DE-CT) uses two energy sources using high and low tube voltage, thus creating two data sets. Dedicated software creates overlay of the low and high energy images, in which enhancement of tissues with iodine can be better appreciated and quantified compared to standard CT. The investigators hypothesize that dual energy can better visualize the iodine uptake in bowl wall as a marker of inflammation within intestinal lesions, and may help in identifying the patients who will or will not require surgery.
AIM To evaluate the efficacy of DE-CT studies in predicting need for surgery within 3 months.
METHODS Patients with known CD undergoing abdominal CT for possible obstructive presentation prospectively underwent a DE-CT using intravenous iodinated contrast material, and were followed for 3 months for an outcome of surgery.
The DE-CT was interpreted by a radiologist blinded to the clinical outcome, and the attending physicians of the patients were blinded to the interpretation of the DE-CT. DE-CT parameters were then compared between patients who underwent surgery and those who did not. Receiver operating characteristic (ROC) curve analysis was used to find the optimal cut off point to distinguish between patients which did or did not eventually underwent surgery. Based on the cut off points found from the ROC analysis, the negative and positive predictive values were calculated.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Patients with known Crohn's disease undergoing abdominal CT for possible obstructive presentation
Key inclusion criteria (4 listed)
- Age over 18 years,
- known Crohn's disease (at least 3 moths prior)
- obstructive symptoms
- scheduled for abdominal CT for evaluation of symptoms (regardless of participation in the study)
Key exclusion criteria (2 listed)
- Pregnancy
- Contraindication to perform CT with IV contrast media
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Abdominal surgery
Time frame: 3 months
Results and safety
The study was stopped early (reason given: Interim analysis was sufficient to demonstrate accuracy of the evaluated test). Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 19 Jan 2015.
Related trials for Crohn's Disease
Not yet recruitingPhase 1
An Open-label, DDI Study to Investigate the Effects of Duvakitug on the PK of Selected Cytochrome P450 Substrates
Ulcerative Colitis, Crohn's Disease
RecruitingObservational study
Longitudinal Immunophenotyping of Patients With Inflammatory Bowel Disease
Inflammatory Bowel Disease, Crohn's Disease
RecruitingObservational study
Ibd CAncer and seRious Infections in France (I-CARE 2)
IBD, Ulcerative Colitis
RecruitingObservational study
Characterization of Colorectal Dysplasic Lesions and Stratification of Their Evolving Risk in Inflammatory Bowel Disease Patients: a Prospective, Observational and Multicenter Study
Crohn Disease (CD), Colitis Ulcerative
Enrolling by invitationPhase 4
MOdel-Informed Precision Dosing of Ustekinumab and VEdolizumab in Inflammatory Bowel Disease
Inflammatory Bowel Diseases, Crohn Disease
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Tomer Adar, MD principal investigator
Shaare Zedek Medical Center affiliated with Hebrew University, Jerusalem, Israel.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Crohn's Disease, run by Shaare Zedek Medical Center at 1 site in Israel.
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 4 inclusion and 2 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: stopped early, as of the sponsor's last update on 19 Jan 2015. 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 Israel. 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?
The study was stopped early (reason given: Interim analysis was sufficient to demonstrate accuracy of the evaluated test). Results are not available in the source record.
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?
Abdominal surgery (time frame: 3 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 19 Jan 2015.