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Timing tumor DNA tests after chemo: a small study

NCT ID NCT06141772

Knowledge-focused Sponsor: Centre Henri Becquerel 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
Running, but no longer taking on new participants.
Completed This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study measured how levels of circulating tumor DNA (ctDNA) change in the hours after the first round of chemotherapy in 24 people with diffuse large B cell lymphoma. The goal was to find the best time to take blood samples for monitoring the cancer. Researchers hope that a better understanding of ctDNA timing could improve how doctors track the disease.

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 could help doctors know the best time to test for tumor DNA after chemotherapy, improving how they monitor the disease.
What could go wrong
This is a very small, completed study with only 24 participants. It is designed to gather information, not to test a new treatment, so it may not lead to any direct patient benefit.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

24 people

The number who actually took part.

Started

Dec 2023

Finished

Apr 2025

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.

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: * 18 years or older * Diffuse Large B Cell Lymphoma * TEP-TDM at diagnosis * Inform Consent form signed * Performance status 0 or 1 * Hospitalized on clinician decision for first cycle of R-CHOP or R-miniCHOP Exclusion Criteria: * Histology other than Diffuse Large B Cell * Patient under guardianship or curatorship * Incapacity to understand the study or conform to the constraints of the study (language barrier, psychological barrier, geographic barrier…)

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Conditions

The condition(s) this trial relates to.

diffuse large B-cell lymphoma

As listed by the trial registrant

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

Diffuse large B cell lymphoma

Contacts and locations

Locations

  • Centre Henri Becquerel

    Rouen, 76000, France

More trials for these conditions

Other studies related to the condition(s) this trial covers.