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New blood tests aim to make haemophilia treatment safer for patients with inhibitors

NCT ID NCT02453542

Knowledge-focused Sponsor: Karolinska Institutet 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study is testing new blood tests to see if they can better measure how well bleeding treatments work in people with haemophilia who have developed inhibitors (antibodies that block standard treatment). The researchers will take blood samples from 20 patients before and after they receive bypassing agents (special clotting medicines). The goal is to improve monitoring, making treatment safer and more effective.

What this could mean

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

Active substance
bypassing agents (FEIBA or NovoSeven)
What this could lead to
If successful, this could lead to better ways to monitor treatment for haemophilia patients with inhibitors, making therapy safer and more effective.
What could go wrong
This is a small, early-stage study with only 20 participants, so results may not apply to all patients. The new tests may not prove reliable enough for routine use.

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 20 people

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

Started

Mar 2015

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

Fifteen patients (adults and children) with hereditary haemophilia with inhibitors. Five patients (adults) with acquired haemophilia

Ages

7 years and older

Sex

Male participants only

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: * informed consent * meets the study population description Exclusion Criteria: * no informed consent age\<7 years

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Conditions

The condition(s) this trial relates to.

acquired hemophilia hemophilia hemophilia A hemophilia B

As listed by the trial registrant

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

Hemophilia

How to take part

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

  1. The places running it

    1 site. 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

  • Karolinska University Hospital

    RECRUITING

    Solna, Stockholm County, 17176, Sweden

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