Understanding pain modulation in hemophilia patients

Conditioned Pain Modulation in Patients With Hemophilic Arthropathy. A Cross-sectional Cohort Study

Investigación en Hemofilia y Fisioterapia · NCT06267209

This study is trying to understand how pain works in people with hemophilia, especially those with joint problems, by looking at how their feelings about pain and anxiety might affect their pain levels.

Quick facts

Study typeObservational
Enrollment51 (estimated)
Ages20 Years to 65 Years
SexMale
SponsorInvestigación en Hemofilia y Fisioterapia (network)
Locations1 site (Oviedo, Principality of Asturias)
Trial IDNCT06267209 on ClinicalTrials.gov

What this trial studies

This observational study aims to describe conditioned pain modulation in patients with hemophilia, focusing on those with hemophilic arthropathy. It will recruit 51 patients from three regions in Spain and assess their pain modulation using an ischemic technique to measure pain pressure thresholds. The study will also evaluate factors such as kinesiophobia, catastrophizing, and anxiety that may influence pain perception. The goal is to identify predictive models for conditioned pain modulation in this patient population.

Who should consider this trial

Good fit: Ideal candidates are adults over 18 with hemophilia A or B and bilateral hemophilic ankle arthropathy.

Not a fit: Patients with recent ankle hemarthrosis or those currently taking analgesics or undergoing physiotherapy may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved pain management strategies for patients with hemophilia.

How similar studies have performed: While studies on pain modulation exist, this specific approach in hemophilia patients is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients diagnosed with hemophilia A or B.
* Patients over 18 years of age.
* Persons with a medical diagnosis of bilateral hemophilic ankle arthropathy.
* Patients with clinical assessment by Hemophilia Joint Health Score (\>4 points).
* Persons with hemophilia on prophylactic treatment with FVIII / FIX coagulation concentrates or monoclonal antibodies.
* Have signed the informed consent document.

Exclusion Criteria:

* Patients with neurological or cognitive alterations that prevent the comprehension of the questionnaires and physical tests.
* Patients who have had an ankle hemarthrosis in the 6 months prior to the start of the study.
* Patients who have taken analgesic or anti-inflammatory drugs in the 30 days prior to the study.
* Patients who are undergoing an intervention (physiotherapeutic or orthopedic) at the time of the study.

Where this trial is running

Oviedo, Principality of Asturias

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Hemophilia, Haemophilia, Joint pain, Conditioned pain modulation, Kinesiophobia, Catastrophism, Anxiety

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.