- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01843426
Aortic Stenosis Pre-Transcatheter Aortic Valve Replacement (TAVR) Procedure CT Scan
July 31, 2018 updated by: Medical University of South Carolina
Diagnostic Image Quality and Safety of Low-Volume, Low-Concentration, Iso-Osmolar Contrast Medium in the Computed Tomographic Workup of Patients Considered for TAVR
The purpose of this study is to evaluate contrast media volume, safety and 30-day outcome of patients after a computed tomography (CT) scan.
The results of this study will help to determine the minimum volume of contrast material that can be used to ensure patient safety while not compromising diagnostic image quality in high-risk patients.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
The scholarly rationale for the study is to determine the feasibility of restricting the contrast media volume to 60ml of 270mg Iodine (mgI)/ml iodixanol or less to accomplish sufficient intravascular attenuation for comprehensive CT assessment prior to TAVR.
The study will also evaluate the effects of contrast media administration on our subjects' kidney function by performing serum creatinine measurements at baseline, as well as at three days and thirty days after contrast media administration.
Study Type
Interventional
Enrollment (Actual)
40
Phase
- 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 Locations
-
-
South Carolina
-
Charleston, South Carolina, United States, 29425
- Medical University of South Carolina
-
-
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
Ages Eligible for Study
18 years to 90 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Subject must be 18-90 years of age.
- Subject must have been referred for a clinically indicated CT prior to TAVR.
- Subject must provide written informed consent prior to any study-related procedures being performed.
- Subject must be willing to comply with all clinical study procedures.
Exclusion Criteria:
Subject is a pregnant or nursing female. Exclude the possibility of pregnancy:
- By testing (serum or urine βHCG) within 24 hours before contrast agent administration, or
- By surgical sterilization, or
- Post menopausal, with minimum one (1) year history without menses.
- Subject has an acute psychiatric disorder or is cognitively impaired.
- Subject is using or is dependent on substances of abuse.
- Subject is unwilling to comply with the requirements of the protocol.
- Subject has previously entered this study.
- Subject has an allergy against iodinated contrast agents.
- Subject is in acute unstable condition.
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: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Low-volume, Low-concentration contrast (Visipaque 270) CT scan
An ECG-synchronized, contrast-medium enhanced CT study of the heart for the evaluation of the aortic root complex and general cardiac morphology will be obtained.
This is immediately followed by a CT angiographic study of the chest, abdomen, and pelvis (beyond the femoral heads), which utilizes the same contrast bolus that is injected for evaluating the heart.
This latter vascular study serves to evaluate the TAVR deployment catheter access route through the femoral, iliac, and aortic vascular stations.
In clinical routine, we have been performing this type of study with total contrast media volumes ranging from 40-120 mL of iodinated contrast material.
|
An ECG-synchronized, contrast-medium enhanced CT study of the heart for the evaluation of the aortic root complex and general cardiac morphology will be obtained.
This is immediately followed by a CT angiographic study of the chest, abdomen, and pelvis (beyond the femoral heads), which utilizes the same contrast bolus that is injected for evaluating the heart.
This latter vascular study serves to evaluate the TAVR deployment catheter access route through the femoral, iliac, and aortic vascular stations.
In clinical routine, we have been performing this type of study with total contrast media volumes ranging from 40-120 mL of iodinated contrast material.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Clinically Diagnostic CT Assessments
Time Frame: up to 2 years
|
Determine that restricting the contrast media volume to 60ml of 270 mgI/ml iodixanol or less generates clinically diagnostic CT assessments prior to TAVR.
|
up to 2 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Image Quality
Time Frame: up to 2 years
|
Measure contrast media attenuation and determine diagnostic image quality within target structures in the aortic root and the ilio-aortic access route.
|
up to 2 years
|
Safety
Time Frame: up to 2 years
|
Evaluate safety and 30-day outcome of patients regarding survival, renal function, and adverse events (renal failure, dialysis, general morbidity).
|
up to 2 years
|
Long-term Follow-Up
Time Frame: up to 4 years
|
Determine procedural outcome of the TAVR procedure by longer-term patient follow-up after one and two years for device function, position, and paravalvular leakage.
|
up to 4 years
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Collaborators
Investigators
- Principal Investigator: Joseph Schoepf, MD, Medical University of South Carolina
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
February 1, 2013
Primary Completion (Actual)
September 25, 2017
Study Completion (Actual)
September 25, 2017
Study Registration Dates
First Submitted
April 15, 2013
First Submitted That Met QC Criteria
April 29, 2013
First Posted (Estimate)
April 30, 2013
Study Record Updates
Last Update Posted (Actual)
August 2, 2018
Last Update Submitted That Met QC Criteria
July 31, 2018
Last Verified
March 1, 2018
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- Pro19770
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
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.
Clinical Trials on Aortic Valve Stenosis
-
Anteris Technologies Ltd.Active, not recruitingAortic Valve Calcification | Severe Aortic Valve Stenosis | Symptomatic Aortic StenosisGeorgia
-
Anteris Technologies Ltd.Active, not recruitingAortic Stenosis | Aortic Valve Calcification | Severe Aortic Valve Stenosis | Symptomatic Aortic StenosisUnited States
-
The Medicines CompanyCompletedTranscatheter Aortic Valve Replacement | Aortic Valve Replacement | Severe Aortic StenosisNetherlands, Germany, United Kingdom, Canada, France, Italy, Switzerland
-
Ningbo Jenscare Biotechnology Co., Ltd.UnknownAortic Regurgitation | Severe Aortic Stenosis
-
Edwards LifesciencesActive, not recruitingAortic Stenosis | Aortic Regurgitation | Symptomatic Aortic StenosisChina
-
Edwards LifesciencesCompletedAortic Valve Stenosis | Aortic Valve Stenosis With Insufficiency | Regurgitation, Aortic Valve | Aortic Valve IncompetenceUnited States
-
Sorin Group USA, Inc.TerminatedAortic Valve Stenosis | Aortic Valve Stenosis With Insufficiency | Regurgitation, Aortic Valve | Aortic Valve IncompetenceUnited States
-
Edwards LifesciencesActive, not recruitingHeart Failure | Aortic Stenosis | Mitral Valve Insufficiency | Aortic Valve Insufficiency | Mitral StenosisUnited States, Canada, Poland
-
Genesis Medtech CorporationRecruitingDiseases of Aortic Valve | Aortic Stenosis DiseaseChina
-
BC Centre for Improved Cardiovascular HealthEdwards LifesciencesUnknownTranscatheter Aortic Valve Implantation | Severe Aortic StenosisCanada
Clinical Trials on Low-volume, low-concentration contrast (iodixanol - Visipaque 270) CT scan
-
Yonsei UniversityCompletedCoronary Artery DiseaseKorea, Republic of
-
VA Greater Los Angeles Healthcare SystemWithdrawnMultiple Pulmonary EmboliUnited States
-
VA Greater Los Angeles Healthcare SystemGeneral ElectricCompletedChronic Kidney Disease | Pulmonary Embolism | Renal Artery Stenosis | Pulmonary CancerUnited States