About this trial
This is a longitudinal, prospective study, which will include 30 subjects with hereditary coagulopathies, with arthropathy, chronic synovitis resulting from hemarthrosis of the elbows, knees and/or ankles followed up at the Centro de Hemofilia HCFMUSP, after approval by the ethics and research committee.
They will undergo imaging tests (X-rays and Magnetic Resonance of knee, elbow, or ankle), physical, pain, quality of life and functional assessments (Hemophilia Joint Health Score, Functional Independence Score in Hemophilia, Perimeter, Test Timed up and Go, 30 second sit and stand test, Haemophilia - Adult - Quality of Life questionnaire (HAEM-A-QoL), Knee Injury and Osteoarthritis Outcome Score, EQ-5D, numerical rating scale for pain and embolization procedure (superselective embolization of target arteries with spherical microparticles Embosphere 100-300 micrometers (Biosphere Medical, Roissy, France), until partial vascular stasis and decharacterization of pathological synovial enhancement.
These evaluations will be performed at baseline, 1, 3, 6, 12, 24, 36, 48 and 60 months after the procedure.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients with hereditary coagulopathies with arthropathy (i.e., chronic synovitis due to hemarthrosis), with X-ray and MRI (documenting synovitis) followed up at the Hemophilia Center HC-FMUSP.
Disqualifiers
Patients who do not complete the planned assessments
Patients who do not accept to continue with the study.
Trial design
Single group
Treatments tested in this trial
embolization with spherical microparticles embosphere
Deviceembolization of affected joints with spherical microparticles embosphere
Treatment groups
Trial outcomes
Primary outcomes
Reduction of synovium thickness by embolization
Measure (in milimeters) changes of synovial thickness in patients with hereditary coagulopathies with arthropathy due to hemarthrosis with MRI (measure synovium thickness)
Secondary outcomes
Reduction of synovitis by embolization
Measure (in milimeters) changes on synovial thickness in patients with hereditary coagulopathies with arthropathy due to hemarthrosis with MRI
Inferior limb strength
Measure changes in muscle strength by timed up and go (by time of performance, in seconds).
Inferior limb strength
Measure changes in muscle strength of lower limbs by 30 seconds sit to stand test (by number of repetitions)
Balance and fall risk
Measure (in seconds, period of time to perform the test) changes in balance and risk of falls by Timed up and go test.
Sponsors and contacts
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University of Sao Paulo General Hospital
Lead sponsor
Merit Medical Systems, Inc.
Collaborator