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Hemophilia ArthropathyNCT05589662

Clinical, Functional and Musculoskeletal Differences Between Adult Patients With Hemophilia and Their Healthy Peers

An observational study of Hemophilia Arthropathy, run by Investigación en Hemofilia y Fisioterapia.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Background. Hemophilia is characterized by the development of a progressive, degenerative, intra-articular lesion (hemophilic arthropathy). This arthropathy presents with chronic pain, limited range of motion, axial changes, and periarticular muscle atrophy. Goal. Read more about this study

Who is it for?
Ages 18 to 45 years, men only
Conditions the study is for
Hemophilia Arthropathy
What is being tested?
Clinical and functional assessment
How many people
42 participants
Where
No sites listed yet
Study dates
21 Nov 2022to 23 Dec 2022
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 45 years
  • Men only
  • Adult

Study population: Patients with hemophilic arthropathy and their healthy pairs

Who may be able to join

  • Patients diagnosed with hemophilia A and B.
  • Over 18 years
  • With medical diagnosis of knee arthropathy
  • With clinical evaluation by Hemophilia Joint Health Score
  • In prophylactic treatment or on demand with FVIII / FIX concentrates for coagulation.
  • Healthy subjects must meet knee joint health criteria; over 18 years; and no previous knee or ankle injuries in the 6 months prior to evaluation.

Who cannot join

  • Patients with neurological or cognitive disorders that prevent the understanding of physical tests
  • Not having signed the informed consent document

Trial locations and contacts

No sites are listed yet.

Rubén Cuesta-Barriuso, PhD contact

0034985103386

cuestaruben@uniovi.es

About this study

Official title: Analysis of Clinical, Functional and Musculoskeletal Variables Between Adult Patients With Hemophilic Arthropathy of the Knee and Ankle and Their Healthy Peers. A Case-control Study

Background. Hemophilia is characterized by the development of a progressive, degenerative, intra-articular lesion (hemophilic arthropathy). This arthropathy presents with chronic pain, limited range of motion, axial changes, and periarticular muscle atrophy.

Goal. To analyze the clonic, functional and musculoskeletal differences between adult patients with hemophilic arthropathy of the knee and ankle and their healthy peers.

Read more

Study design. Cases and controls study patients. 21 patients with hemophilia A and B and 21 subjects without joint damage.

Variables and measuring instruments: pressure pain threshold (pressure algometer); joint status (Hemophilia Joint Health Score scale); and strength (dynamometry) and muscle activation (surface electromyography).

Expected results. Observe the differences between patients with knee and ankle arthropathy and their healthy peers in muscle strength and activation.

Being tested
Clinical and functional assessment
Keywords
Hemophilic arthropathy, Ankle, Knee, Strength, Muscle activation, Pressure pain threshold

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Clinical and functional assessmentOther

    The dependent variables (muscle strength, muscle activation, pressure pain threshold and joint status) and the outcome measures used to measure these variables will be: pressure dynamometer, surface electromyography, pressure algometer and Hemophilia Joint Health Score

Study groups in NCT05589662
Study groupRoleWhat they receive
Hemophilia groupPatients with hemophilia, older than 18 years, with a diagnosis of hemophilic arthropathy of the knee and ankle. The different study variables will be evaluated following the indicated protocol.
Receives: Other: Clinical and functional assessment
Healthy peers.groupHealthy subjects, older than 18 years, without joint damage at the time of the study, and physically active. The different study variables will be evaluated following the indicated protocol.
Receives: Other: Clinical and functional assessment

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Assess the muscle strength

    The force will be measured with a pressure dynamometer (Lafayette Manual muscle Tester model 01165). This device measures in Newton the force exerted by the patient in the requested muscular action. The higher the value, the greater muscle strength. We will perform the measurements bilaterally. Strength in the quadriceps and triceps surae muscles will be measured. The patient will be asked for 2 maximum isometric contractions of 5 seconds, with a rest of 30 seconds between them. In all the measurements, the evaluator will encourage the patient in a standardized way to carry out the contractions. In the measurement of the strength of all the muscles evaluated, the mean value of the measurements obtained will be used as a measure.

    Measured: Screening visit

Secondary outcomes (3)
  1. Assess the muscle activation

    Muscle activation will be measured with surface electromyography (Shimmer Sensing model, Dublin, Ireland). Using this instrument, we will evaluate the electrical activity of the muscles and their level of activation. The placement of the electrodes will be marked on the subjects standing, and they will be placed following the European recommendations for the use of SEMG. A bipolar SEMG system will be used with circular electrodes 10 mm in diameter, 20 mm apart, placed longitudinally, in the direction of the muscle fibers studied, and with a reference electrode at a distance. The unit of measure is the μV. The higher the score, the greater muscle activation.

    Measured: Screening visit

  2. Assess the pressure pain threshold

    Pressure pain threshold will be measured with a pressure algometer (Wagner FPIXTM Digital Algometer model). This device measures in Newton/cm2 the pressure at which the subject perceives pressure pain. A pressure will be applied that we will increase at an approximate speed of 50kPa/s until the patient tells us that the sensation is beginning to be painful. In the knee we will measure bilaterally 3 cm medially to the midpoint of the inner edge of the patella, 2 cm proximally to the superior pole of the patella. At the ankle we will measure bilaterally ventrally to the lateral malleolus.

    Measured: Screening visit

  3. Assess the joint status

    In patients with hemophilia, joint status will be assessed with the Hemophilia Joint Health Score. This specific scale for use in patients with hemophilia is used to measure the joint status of patients with hemophilic arthropathy. It evaluates 8 items: inflammation and its duration, pain, muscle atrophy and strength, crackles, and loss of flexion and extension. It has a score of 0 (no joint damage) to 20 points (maximum joint damage) per joint (elbows, knees and ankles). A gait rating is added to 120 points (range 0-4 points), with the maximum rating on this scale being 124 points.

    Measured: Screening visit

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Oct 2022
  2. Study start21 Nov 2022 (estimated)
  3. Primary completion28 Nov 2022 (estimated)
  4. Study completion23 Dec 2022 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
42 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05589662
Sponsor's protocol ID
He-BloodCC
Status last verified
Nov 2022
First submitted
18 Oct 2022
Last updated
4 Nov 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Hemophilia Arthropathy, run by Investigación en Hemofilia y Fisioterapia.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 4 Nov 2022. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Rubén Cuesta-Barriuso, PhD (0034985103386, cuestaruben@uniovi.es), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Assess the muscle strength (time frame: Screening visit). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Nov 2022.

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