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Why do some leukemia patients develop dangerous blood clots?

NCT ID NCT07831668

NEW Knowledge-focused Sponsor: Gruppo Italiano Malattie EMatologiche dell'Adulto Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 21, 2026 · Last updated Sep 21, 2026

Summary

Researchers are observing adults newly diagnosed with acute leukemia during their hospital stay to learn which factors raise the risk of venous thromboembolism, a serious blood clot condition. The study follows about 250 patients from admission to discharge or death, recording clot events and collecting clinical data. The goal is to identify risk factors that could help doctors decide who needs clot-prevention treatment.

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 researchers identify which patients face the highest clot risk, doctors could target clot-prevention treatments more precisely and avoid unnecessary blood thinners in others.
What could go wrong
This is an observational study, so it can only show associations, not cause and effect. Findings from 250 patients at hematology wards may not apply to everyone with acute leukemia.

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 250 people

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

Expected to start

Jan 2027

An estimate. Start dates often move.

Expected to finish

Jan 2029

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

The study will include patients with newly diagnosed acute leukemia at the time of first admission to a Hematology Ward.

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: 1. Age equal to or greater than 18 years of age 2. New diagnosis of Acute Leukemia (APL, other AML, ALL) according to the current diagnostic criteria of the ELN 2022 for myeloid lineage (AML/APL) and ELN 2024 for lymphoid lineage (ALL) 3. Hospitalization in a Hematology Ward lasting at least 2 days 4. Signed informed consent Exclusion Criteria: 1. Ongoing therapeutic-dose anticoagulant treatment at the time of admission (i.e., dosage exceeding standard thromboprophylactic regimens) 2. Diagnosis of venous thromboembolism (VTE) or major bleeding (MB) occurring within 48 hours of hospital admission

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Conditions

The condition(s) this trial relates to.

acute leukemia

As listed by the trial registrant

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

Acute leukemia Newly diagnosed acute leukemia Thromboprophylaxis Thromboprophylaxis in acute leukemia

How to take part

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

  1. The official record

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

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  2. 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.

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