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CLL study tracks Long-Term survival after First-Line treatment

NCT ID NCT06792994

Knowledge-focused Sponsor: German CLL Study Group Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 observational study follows 2,000 people with chronic lymphocytic leukemia (CLL) who have completed first-line treatment in earlier clinical trials. Researchers will collect data from routine care to see how different treatment sequences affect overall survival, quality of life, and safety over time. The goal is to learn what factors help patients live longer.

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 doctors understand which treatment sequences work best for long-term survival in CLL patients.
What could go wrong
This is an observational study, not a treatment trial, so it won't directly test new therapies. Results may take years and depend on real-world data quality.

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

About 2,000 people

The number the study aims to enrol. It can still change while the study runs.

Started

Apr 2026

Expected to finish

Aug 2030

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

This observational trial will enrol patients who received first-line treatment in either CLL13, CLL14, or CLL17 trial. On ground of feasibility the sample size is estimat-ed at 1800-2000 patients in total. No formal sample size calculation has been performed.. The study population is defined as all patients who received first-line treatment in CLL13, CLL14, or CLL17 trial, regardless of whether they received any subse-quent lines of CLL therapy or not.

Ages

18 to 99 years

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: * • Subjects must voluntarily sign and date an informed consent, ap-proved by an independent ethics committee (IEC)/institutional review board (IRB) * Documented diagnosis of CLL at time point of inclusion in a first-line study of the GCLLSG (development of RT is not an exclusion criterion) * First-line treatment was administered within one of these first-line studies of the GCLLSG (CLL13, CLL14, or CLL17). * Subsequent therapy lines were either documented during the participa-tion in a first-line study of the GCLLSG or patient consented to have the subsequent therapy lines documented within this observational trial. * Subjects are willing and able to comply with procedures required in this protocol. Exclusion Criteria: * • Patients without participation in one of the first-line studies of the GCLLSG (CLL13, CLL14, CLL17) * Subjects with legal incapacity * Subjects who are institutionalized by regulatory or court order * Subjects who are in dependence to the sponsor or the investigator

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Conditions

The condition(s) this trial relates to.

B-cell chronic lymphocytic leukemia

As listed by the trial registrant

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

Chronic lymphocytic leukemia

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • University Hospital Cologne

    RECRUITING

    Cologne, 50924, Germany

  • Universitätsklinikum Ulm

    RECRUITING

    Ulm, 89081, Germany

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