Optimization of the Skin Test Procedure With Iodinated Contrast Products for Certain Patients Suspected of Immediate Hypersensitivity (OPT-TC-PCI)

Hypersensitivity to iodinated contrast products (ICP) affects 1 to 3% of injected patients. These reactions require an allergological assessment with skin tests in order to distinguish allergic immunological mechanisms from other non-specific mechanisms. Current recommendations recommend carrying out prick tests followed by intradermal reactions up to a 10th dilution. However, undiluted IDRs are carried out by several teams under certain conditions, without this having been validated. Experience tends to show that these IDRs are relevant in certain patients to make the diagnosis without risk.

Study Overview

Status

Recruiting

Study Type

Observational

Enrollment (Estimated)

100

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 Locations

      • Strasbourg, France, 67091
        • Recruiting
        • Service de Pneumologie - CHU de Strasbourg - France
        • Contact:
        • Principal Investigator:
          • Carine METZ-FAVRE, MD
        • Sub-Investigator:
          • Charlotte HURSON, 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

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Major subject (≥18 years old) treated in the allergology department in the period from June 1, 2020 to July 3, 2023 for suspected allergic hypersensitivity to ICPs and having had at least one undiluted intradermal reaction to one or more ICPs.

Description

Inclusion Criteria:

  • Major subject (≥18 years old)
  • Subject treated in the allergology department in the period from June 1, 2020 to July 3, 2023 for suspected allergic hypersensitivity to ICPs and having had at least one undiluted intradermal reaction to one or more ICPs.
  • Absence of written opposition in the medical file of the subject (and/or their legal representative if applicable) to the reuse of their data for scientific research purposes.

Exclusion Criteria:

  • Presence of opposition from the subject (and/or their legal representative if applicable) to the reuse of their data for scientific research purposes.

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Retrospective study of the relevance of performing pure intradermal reactions to iodinated contrast products (ICP) after obtaining a pure negative prick test.
Time Frame: Files analyzed retrospectively cover the period from June 1, 2020 to July 3, 2023.
This retrospective study concerns patients treated at the Strasbourg University Hospital in the period from June 1, 2020 to July 3, 2023 for suspected allergic hypersensitivity to (ICP) and having had at least one undiluted intradermal reaction to one or more (ICP) .
Files analyzed retrospectively cover the period from June 1, 2020 to July 3, 2023.

Collaborators and Investigators

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

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)

December 21, 2023

Primary Completion (Estimated)

December 1, 2024

Study Completion (Estimated)

December 31, 2024

Study Registration Dates

First Submitted

July 4, 2024

First Submitted That Met QC Criteria

July 4, 2024

First Posted (Actual)

July 12, 2024

Study Record Updates

Last Update Posted (Actual)

July 12, 2024

Last Update Submitted That Met QC Criteria

July 4, 2024

Last Verified

July 1, 2024

More Information

Terms related to this study

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.

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