Thyroid Function of Pediatric Subjects Following Isovue® Administration

July 29, 2025 updated by: Bracco Diagnostics, Inc

A Prospective, Multicenter Observational Study to Evaluate Thyroid Function of Pediatric Subjects From Birth to 3 Years Exposed to ISOVUE® (Iopamidol Injection)

This is a Phase IV prospective, multicenter, observational study to estimate the proportion of subjects 0 to 3 years of age who develop abnormal thyroid function after exposure to intravascular administration of ISOVUE for the required radiologic procedure as part of their standard of care.

Study Overview

Status

Status

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

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.

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 (Actual)

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.
17

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.
  • 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
    • Arizona
      • Phoenix, Arizona, United States, 85016
        • Phoenix Children's Hospital
    • Nebraska
      • Omaha, Nebraska, United States, 68114
        • Children's Hospital and Medical Center
    • Ohio
      • Akron, Ohio, United States, 44308
        • Children's Hospital Medical Center of Akron
    • South Carolina
      • Charleston, South Carolina, United States, 29425
        • Medical University of South Carolina (MUSC)

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

No older than 3 years (Child)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Is male or female from 0 to 3 years of age;
  • Is scheduled to undergo a radiologic examination that requires intravascular administration of ISOVUE as part of his/her standard of care;
  • Has normal baseline thyroid function tests (TSH, total T3, total T4, and fT4) performed at a local laboratory with blood sample obtained within one week prior to ISOVUE administration;
  • Written informed consent is obtained from the subject's parent(s) or legally acceptable representative(s) (according to local regulations) who are willing to comply with the protocol requirements.

Exclusion Criteria:

  • Has any known allergy to one or more of the ingredients of ISOVUE;
  • Has been diagnosed with congenital hypothyroidism;
  • Has undergone radiation treatments to the head or neck;
  • Is currently on thyroid replacement therapy;
  • Is on therapy with dopamine or any treatment which may affect the thyroid function testing results;
  • Has been exposed to any topical iodinated product within 30 days prior to enrollment in the present study;
  • Has been exposed to an iodinated contrast agent within 1 year prior to enrollment in the present study, including any administration of iodinated contrast agents during placement of a central line;
  • Has any medical condition or other circumstances which would significantly decrease the chances of obtaining reliable data, achieving study objectives, or completing the study and/or post-dose follow-up examinations.

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: Other
  • Allocation: N/A
  • Interventional Model: Single Group 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.
Experimental: ISOVUE
Isovue will be given to all subjects per the standard of clinical care.The specific iodine concentration and volume of ISOVUE used during the radiologic procedure will depend on the type of procedure and the standards in place at the site where the procedure is performed.
Drug: Isovue
Isovue will be given to all subjects per the standard of clinical care.
Other Names:
  • IOPAMIDOL injection

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
Abnormal Thyroid Function
Time Frame: Day 1 (day dosed with intravascular administration of ISOVUE as part of their standard of care examination) to 1-month follow-up or 2-month follow-up
The primary outcome of this study was to evaluate the proportion of subjects, 0 to 3 years of age, with abnormal TSH values post-baseline following administration of ISOVUE.
Day 1 (day dosed with intravascular administration of ISOVUE as part of their standard of care examination) to 1-month follow-up or 2-month follow-up

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Hypothyroidism
Time Frame: Day 1 (day dosed with intravascular administration of ISOVUE as part of their standard of care examination) to 1-month follow-up or 2-month follow-up
To evaluate the proportion of subjects, 0 to 3 years of age, with hypothyroidism regardless of the need for thyroid hormone therapy after administration of ISOVUE.
Day 1 (day dosed with intravascular administration of ISOVUE as part of their standard of care examination) to 1-month follow-up or 2-month follow-up
Thyroid Hormone Replacement Therapy
Time Frame: Day 1 (day dosed with intravascular administration of ISOVUE as part of their standard of care examination) to 1-month follow-up or 2-month follow-up to 6- to 12 months follow-up (if applicable)
The proportion of subjects initiated on thyroid hormone replacement therapy.
Day 1 (day dosed with intravascular administration of ISOVUE as part of their standard of care examination) to 1-month follow-up or 2-month follow-up to 6- to 12 months follow-up (if applicable)

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.
Bracco Diagnostics, Inc

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.
  • Study Director: Mary Luigia Storto, MD, Bracco Corporate

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 (Actual)

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.
March 26, 2019

Primary Completion (Actual)

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.
November 15, 2021

Study Completion (Actual)

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.
March 25, 2022

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).
December 17, 2018

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.
December 17, 2018

First Posted (Actual)

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.
December 19, 2018

Study Record Updates

Last Update Posted (Actual)

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.
July 30, 2025

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.
July 29, 2025

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, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

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.
  • IOP-120

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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