ClinicalTrials.gg
RecruitingNCT05629130EHCOUpdated Nov 29, 2022

Embolization in Hereditary Coagulopathies

An interventional study of embolization with spherical microparticles embosphere in Hemophilia, Embolization and Hemarthrosis, sponsored by University of Sao Paulo General Hospital. Recruiting at 1 site in Brazil. Per ClinicalTrials.gov, last updated 2022-11-29.

Sponsored by University of Sao Paulo General Hospital · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
30
Allocation
Not applicable
Sex
All
01

Study summary

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.

Read the detailed description

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 Hemophilia do Hospital das Clinicas, Faculdade de Medicina da Universidade de São Paulo, i.e. HC-FMUSP), after approval by the ethics and research committee and registry at the clinical trials.

Patients will be evaluated by imaging (X-rays and Magnetic Resonance of the affected joint, i.e., knee, elbow, and/or ankle); physical and functional assessments (Hemophilia Joint Health Score, Functional Independence Score in Hemophilia, Perimeter of the affected joint(s), Test Timed up and Go, 30 second sit and stand test, Knee Injury and Osteoarthritis Outcome Score (KOOS); quality of life (Haemophilia - adult - quality of life questionnaires (HAEM-A-QoL), Knee Injury and Osteoarthritis Outcome Score (KOOS), EQ-5D; pain measured by numerical rating scale.

Volunteers will be submitted to embolization procedure (superselective embolization of target arteries with spherical microparticles embosphere 100-300 micrometers (Biosphere Medical, Roissy, France) of the affected joint(s), 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.

02

Conditions studied

  • Hemophilia
  • Embolization
  • Hemarthrosis
  • Clotting Factor Deficiency
  • Synovitis
  • Arthropathy
03

In context

Hemophilia A

844 studies on the registry are indexed under Hemophilia A; 138 are open to participants now.

This study's planned enrollment of 30 is close to the median of 30 across 499 interventional studies indexed under Hemophilia A.

Browse Hemophilia A studies →

Lead sponsor

University of Sao Paulo General Hospital is the lead sponsor of 611 studies on the registry; 98 are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 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.

Exclusion criteria

Exclusion Criteria:

  • Patients who do not complete the planned assessments
  • Patients who do not accept to continue with the study.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
30 participants (estimated)

Study arms

  • Experimental
    Embolization

    embolization procedure (superselective embolization of target arteries with spherical microparticles Embosphere 100-300 micrometers (Biosphere Medical, Roissy, France) of the affected joint, until partial vascular stasis and decharacterization of pathological synovial enhancement.

    Device: embolization with spherical microparticles embosphere

Interventions

  • Deviceembolization with spherical microparticles embosphere

    embolization of affected joints with spherical microparticles embosphere

06

What researchers measure

Primary outcomes

  1. 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)

    Time frame: 6 months

Secondary outcomes

  1. Reduction of synovitis by embolization

    Measure (in milimeters) changes on synovial thickness in patients with hereditary coagulopathies with arthropathy due to hemarthrosis with MRI

    Time frame: 1, 3 12, 24, 36, 48 and 60 months

  2. Inferior limb strength

    Measure changes in muscle strength by timed up and go (by time of performance, in seconds).

    Time frame: 1, 3, 6, 12, 24, 36, 48, 60 months

  3. Inferior limb strength

    Measure changes in muscle strength of lower limbs by 30 seconds sit to stand test (by number of repetitions)

    Time frame: 1, 3, 6, 12, 24, 36, 48, 60 months

  4. 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.

    Time frame: 1, 3, 6, 12, 24, 36, 48, 60 months

  5. Quality of life of the patient

    Measure, according to the scale of the questionnaire, changes in quality of life with Haemophilia - Adult - Quality of life Questionnaires (HAEM-A-QoL, 10 dimensions, 0 to 100, being 0 the best health related quality of life)

    Time frame: 1, 3, 6, 12, 24, 36, 48, 60 months

  6. Quality of life of the patient

    Measure, according to the scale of the questionnaire, changes in quality of life with Knee Injury and Osteoarthritis Outcome Score (KOOS, 0-100, 100 being the best quality of life).

    Time frame: 1, 3, 6, 12, 24, 36, 48, 60 months

  7. Quality of life of the patient

    Measure, according to the scale of the questionnaire, changes in quality of life with by EQ-5D, up to 1, being 1 the best quality of life). Please note: "Since 2009, EQ-5D has been available in three versions: the three-level EQ-5D-3L; the five-level EQ-5D-5L; and a 'youth' adaptation, EQ-5D-Y. Although the EQ is in recognition of the EuroQol group name, the D refers to dimensions, the L signifies level, and the Y stands for youth, the name of the instrument should not be spelled out in this manner as this is inaccurate. Therefore, EQ-5D is not an abbreviation and is the correct term to use when referring to the instrument in general." Brooks R, Boye KS, Slaap B. EQ-5D: a plea for accurate nomenclature. J Patient Rep Outcomes. 2020 Jul 3;4(1):52. doi: 10.1186/s41687-020-00222-9. PMID: 32620995; PMCID: PMC7334333.

    Time frame: 1, 3, 6, 12, 24, 36, 48, 60 months

  8. Functional capacity

    Measure (according to the scale of the questionnaire) changes in functional capacity with Functional Independence Score in Hemophilia (FISH score, 0 to 32, 32 being the best result)

    Time frame: 1, 3, 6, 12, 24, 36, 48, 60 months

  9. Functional capacity

    Measure (according to the scale of the questionnaire) changes in functional capacity with Functional Independence Score by Knee Injury and Osteoarthritis Outcome Score (KOOS, 0-100, 100 being the best result)

    Time frame: 1, 3, 6, 12, 24, 36, 48, 60 months

  10. Physical capacity

    Measure changes in physical capacity by Hemophilia Joint Health Score (HJHS), 0 to 124, 0 being the best result.

    Time frame: 1, 3, 6, 12, 24, 36, 48, 60 months

  11. Pain of the affected joint

    Measure changes in pain by Hemophilia Joint Health Score (HJHS, 0-12, 0 being the best result)

    Time frame: 1, 3, 6, 12, 24, 36, 48, 60 months

  12. Pain of the affected joint

    Measure changes in pain by numerical rating scale (NRS, 0-10, 0 being no pain and 10 being the worst pain possible)

    Time frame: 1, 3, 6, 12, 24, 36, 48, 60 months

  13. Pain of the affected joint

    Measure changes in pain by Knee Injury and Osteoarthritis Outcome Score (KOOS, 0 to 100, 100 being the best result)

    Time frame: 1, 3, 6, 12, 24, 36, 48, 60 months

  14. Stifness

    Measure (0 to 100, 100 being the best result) changes in knee stiffness by Knee Injury and Osteoarthritis Outcome Score (KOOS)

    Time frame: 1, 3, 6, 12, 24, 36, 48, 60 months

07

Study locations

1 of 1 sites recruiting
  • Instituto de Ortopedia e Traumatologia do Hospital das Clinicas da Faculdade de Medicina da Universidade de São Paulo
    São Paulo, 05403-010, Brazil
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Jan 2023; primary completion for Dec 2028, 71 months later.

Of 72 non-industry interventional studies with no phase under Hemophilia A, half reached primary completion within 11 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 38. This study's planned 71 months is above that.

Counting every sponsor, half of 75 studies reached it within 11 months; a quarter within 5 and three quarters within 38.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 28, 2022
First posted
Nov 29, 2022
StartEst.
Jan 16, 2023
Primary completionEst.
Dec 31, 2028
CompletionEst.
Dec 31, 2029
Last update
Nov 29, 2022
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 29, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05629130
Responsible party
Sponsor
First posted
Nov 29, 2022
Start date
Jan 16, 2023 (estimated)
Primary completion
Dec 31, 2028 (estimated)
Completion
Dec 31, 2029 (estimated)
Last update
Nov 29, 2022

Study contacts

marcia u rezende, MD PhD
Contact
marcia.uchoa@hc.fm.usp.br
+5511 981226282
Fabiane E Farias, PT
Contact
fabiane.elize@hc.fm.usp.br
+ 5511 3062-5531
Fabiane E FArias, PT
principal investigator · IOT-HC-FMUSP (Orthopedics Institute - General Hospital- School of Medicine - University of Sao Paulo
Andre M Assis, MD, PhD
study director · Radiology Insititute, General Hospital, School Medicine, University of São Paulo
Paula Villaça, MD, PhD
study director · Hematology department, General Hospital, School of Medicine, University of Sâo Paulo

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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