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New study seeks best blood clot treatment for cancer patients with low platelets

NCT ID NCT05255003

Knowledge-focused Sponsor: Tzu-Fei Wang 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at the best way to treat blood clots in cancer patients who also have low platelet counts, which raises bleeding risk. Researchers will compare two approaches: full-dose blood thinners with platelet transfusions versus a reduced dose without transfusions. The goal is to see if a larger study is possible, not to find a cure. About 50 adults with active cancer and a recent blood clot will take part.

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

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

About 50 people

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

Started

Aug 2022

Expected to finish

Jan 2027

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.

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. Adult patients (age ≥ 18) with active malignancy (malignancy diagnosed or treated within the previous 6 months, or progressive/relapsed); 2. Objectively confirmed VTE within last 14 days for which therapeutic anticoagulation is planned; 3. Thrombocytopenia with a platelet count \< 50,000/uL from cancer therapy or malignancy itself; 4. Able to provide written informed consent Exclusion Criteria: 1. Receipt of anticoagulant for index VTE with platelet count \< 50,000/uL for \> 72 hours; 2. Superficial vein thrombosis only; 3. Life expectancy \< 1 month (as judged by the treating physicians); 4. Creatinine clearance \< 30 ml/min; 5. Contraindication to LMWH such as a history of heparin induced thrombocytopenia; 6. Thrombocytopenia from other causes, such as thrombotic microangiopathy, immune thrombocytopenia, disseminated intravascular coagulation; 7. Previously documented history of refractoriness to platelet transfusion secondary to HLA antibodies; 8. Refusal of blood products; 9. Anticoagulation at any dose is deemed unsafe (i.e. active bleeding or bleeding disorders)

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Conditions

The condition(s) this trial relates to.

cancer thrombocytopenia

As listed by the trial registrant

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

Cancer-associated thrombosis Thrombocytopenia

How to take part

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

  1. The places running it

    3 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

  • Niagara Health - St. Catharines Site

    RECRUITING

    Saint Catharines, Ontario, Canada

  • The Ottawa Hospital

    RECRUITING

    Ottawa, Ontario, K1H 8L6, Canada

  • University of Alberta

    WITHDRAWN

    Edmonton, Alberta, Canada

  • Windsor Regional Hospital

    RECRUITING

    Windsor, Ontario, N8W 1L9, Canada

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