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Study aims to cut radiation risk in advanced CT scans

NCT ID NCT07305103

Knowledge-focused Sponsor: Centre Hospitalier Universitaire de Nīmes Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at data from 9,600 adults in France who had a special type of CT scan called spectral CT. The goal is to find safe radiation dose levels for these scans, which are not yet regulated. By analyzing past scans, researchers hope to create guidelines that protect patients from unnecessary radiation.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this study could help establish safety guidelines that reduce radiation exposure for patients undergoing spectral CT scans.
What could go wrong
This is an observational study, not a treatment trial. It only sets reference levels and does not test a new therapy or intervention.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

9,600 people

The number who actually took part.

Started

Sep 2025

Expected to finish

Jun 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

All adult patients who underwent a spectral CT scan between January 1, 2023, and August 31, 2024, as part of their treatment.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Adult male/female patient (≥ 18 years old) * Body Mass Index (BMI) between 18 and 35 kg/m² * Patients who underwent a spectral CT scan between January 1, 2023, and August 31, 2024, as part of their treatment. Exclusion Criteria: \- Pregnant women

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Medical imaging

Contacts and locations

Locations

  • Nîmes University Hospital

    Nîmes, Gard, 30029, France