Ultrasound may spot silent joint damage in mild hemophilia
NCT ID NCT07719647
First seen Jul 22, 2026 · Last updated Aug 18, 2026 · Updated 3 times
Summary
This study uses ultrasound to examine the joints of adults with mild hemophilia, a group that often goes understudied. Researchers will scan six joints (ankles, knees, elbows) to look for early signs of damage that may not cause symptoms yet. The goal is to see how common joint problems are in mild hemophilia and whether they relate to blood clotting factor levels. The findings could help guide personalized care and education to protect joint health.
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 lead to better monitoring and earlier treatment for joint damage in people with mild hemophilia, potentially improving their quality of life.
- What could go wrong
- This is an observational study, not a treatment trial, so it won't directly test a new therapy. The findings may not change current care if no strong link between ultrasound findings and factor levels is found.
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
-
About 150 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
-
Feb 2027
An estimate. Start dates often move.
- Expected to finish
-
Feb 2028
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 Hide 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: * Adult (≥18 years old) with congenital mild hemophilia, defined as historical coagulation factor level \>5% and \<40% (FVIII or FIX). * Affiliated with a social security system. * Provided written informed consent to participate in the study. Exclusion Criteria: * Patient on prophylactic treatment, defined as at least one of the following: o. ≥5 factor concentrate injections per month for a period of more than 6 months o. Treatment with emicizumab o. Last factor concentrate injection within the past 28 days * Patient with acquired hemophilia. * Patient with uncontrolled chronic rheumatologic disease, such as rheumatoid arthritis, inflammatory spondyloarthropathies, or microcrystalline arthritis. * Known pregnancy or breastfeeding. * Patient deprived of liberty or under legal guardianship or conservatorship.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Mild hemophilia are added.
By submitting, you agree to our Terms of use
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
-
The places running it
1 site. The list below names each one and where it is.
-
The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
-
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
-
Hôpital Necker Enfants malades
Paris, Île-de-France Region, 75015, France