Use of Gadolinium in CT Pulmonary Angiography

February 13, 2020 updated by: Amita Sharma, MD, Massachusetts General Hospital

Efficacy of Gadolinium Contrast in CT Pulmonary Angiography in Patients With Allergy to Iodine

The study will investigate patients with clinical suspicion for pulmonary embolism (PE) who have a contraindication to iodine based contrast. These patients normally get investigated with studies such as ultrasound and nuclear medicine studies but the fastest and preferred investigation is CT with contrast to look for filling defects in the pulmonary arteries. The investigators will assess whether gadolinium, which is currently used with MRI can be used with CT as an alternative effective contrast in diagnosis or exclusion of PE. A new type of CT scanner, a Dual Energy Scanner will be used to improve the visibility of Gadolinium contrast on CT.

Study Overview

Status

Withdrawn

Conditions

Intervention / Treatment

Detailed Description

Contrast enhancement with Gadolinium will be evaluated to assess its efficacy for diagnosis and exclusion of pulmonary embolism in a patient who previously would not have been investigated with CTPA due to an underlying allergy to contrast or other contraindication. If this proves beneficial, it will allow such patients to be investigated successfully with CTPA

Study Type

Interventional

Phase

  • Phase 4

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

  • United States
    • Massachusetts
      • Boston, Massachusetts, United States, 02114
        • Massachusetts General Hospital

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

20 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients suspected of having a Pulmonary embolus
  • Allergy to Iodine based intravenous contrast

Exclusion Criteria:

  • Renal impairment
  • Less than 20 years of age
  • Non-English speaking
  • Pregnancy
  • Allergy to Gadolinium

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: Gadolinium enhancement
Gadolinium enhancement will be performed using intravenous Dotarem[recommended dose of 0.2 mL/kg (0.1 mmol Gd/kg )]
Drug: Gadolinium
agents will be administered intravenously and a CT scan will be performed to evaluate contrast enhancement characteristics of the agents to assess their feasibility as an alternative to Iodine based contrast agents
Other Names:
  • Dotarem

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Diagnosis of Pulmonary Embolism
Time Frame: 24 hours
Ability of Gadolinium to diagnose pulmonary embolism on a dual energy CT scan
24 hours

Collaborators and Investigators

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

Sponsor

Massachusetts General 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 (Anticipated)

July 1, 2017

Primary Completion (Anticipated)

December 1, 2018

Study Completion (Anticipated)

December 1, 2019

Study Registration Dates

First Submitted

September 5, 2014

First Submitted That Met QC Criteria

September 5, 2014

First Posted (Estimate)

September 9, 2014

Study Record Updates

Last Update Posted (Actual)

February 17, 2020

Last Update Submitted That Met QC Criteria

February 13, 2020

Last Verified

February 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2012P002535b

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

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.

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