Performance and Safety of the PHENIX LIBERTY, a Medical Device for Electrostimulation and Biofeedback, in the Treatment of Musculoskeletal Disorders

Prospective Evaluation of the Performance and Safety of the PHENIX LIBERTY, a Medical Device for Electrostimulation and Biofeedback, in the Treatment of Locomotor Disorders

Evaluate the evolution of locomotor abilities in patients treated with functional electrostimulation and biofeedback (PHENIX LIBERTY VIVALTIS device) for musculoskeletal disorders of the knee and spine.

Does the use of the medical device in the treatment of musculoskeletal disorders lead to an improvement ?

Participants will use the medical device, which provides electrical stimulation, biofeedback and pressure biofeedback to re-educate the muscles of the knee and spine area and

Study Overview

• Status: Not yet recruiting
• Conditions: Musculoskeletal Disorder
• Intervention / Treatment: Device: Electrical stimulation and biofeedback with Phenix Liberty medical device

Detailed Description

Rational :

Today, musculoskeletal disorders (MSDs) are considered to be one of the world's leading pathologies. They are also the most widespread occupational pathology in Europe. MSDs include a variety of conditions affecting bones, joints, muscles and connective tissues. To treat these disorders, the guidelines recommend non-drug therapies as first-line treatments for chronic low-back pain and osteoarthritis pain, such as electrostimulation and biofeedback therapy.

In this context, the promoter wishes to carry out this study in order to reinforce the data currently available on the medical device PHENIX LIBERTY.

Design:

Prospective, interventional with non invasive and non burdensome procedure, non-comparative, multicenter, open-label study of a CE-marked medical device

Intervention :

As part of this clinical investigation, the medical device under investigation is used in accordance with its usual use, and the patient's therapeutic procedure includes additional, non-invasive procedures. These additional procedures relate to the addition of an end-of-life visit and validated questionnaires assessing functional deficiencies and impact on daily life.

The care will be conduct as follow:

• 1 inclusion visit (V0) (from 1 say to 15 days prior the the first functionnal therapeutic re-education session)
• 12 sessions of functional therapeutic re-education, during which the PHENIX LIBERTY device may be used. Sessions performed at regular intervals according to a schedule drawn up by the physiotherapist (between 6 and 8 weeks);
• 1 end visit (V13), 1 week after the 12th session to complet questionnaires

In total, the patient will be followed 11 weeks maximum

• Study Type: Interventional
• Enrollment (Estimated): 27
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: George Billard; Phone Number: 0467274889; Email: georges.billard@vivaltis.com
• Study Contact Backup: Name: Camélia Bentaleb; Email: camelia.bentaleb@ceiso.fr

Study Locations

• France
  • Nîmes, France, 30000
    • Human Physio

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Study Population

Patient with a pathology requiring functional rehabilitation for locomotor disorders

Description

Inclusion Criteria:

• Adult patients (between 18 and 65 years of age);
• Patient presenting at least one of the following symptoms related to a locomotor disorder of the knee and/or spine: pain, hypertonia, amyotrophy, mobility restriction, muscle weakness, reduction or loss of motor control, reduction in motor pattern, trophic anomaly;
• Patient able to make himself available to attend sessions regularly and is confident of being able to complete all sessions; ;
• Patient who has signed the study participation consent form;y;
• Patient physically and mentally willing and able, according to the investigator's judgment at the time of recruitment, to perform the procedures under study;
• Patient with social security coverage.

Exclusion Criteria:

• Patients with Stroke, Alzheimer's, multiple sclerosis, peripheral nervous system disorders, spinal cord injury or with cognitive and/or behavioural disorders likely, in the practitioner's judgement in the practitioner's judgement, interact with the self-assessment or biofeedback;
• Patients with hypersensitivity to electrostimulation;
• Patients who, in the 1 month prior to inclusion, have had injections of corticosteroids (e.g. hyaluronate) in the knee/spine concerned;
• Patients with an implanted pacemaker or spinal cord pacemaker;
• Pregnant at the time of the inclusion visit, or wishing to become pregnant during the treatment period;
• Patients who have renounced their liberty by administrative or judicial sentence, or under guardianship or limited judicial protection;
• Patient participating in another interventional clinical trial for the same pathology or testing/having tested an investigational drug in the 30 days prior to inclusion in the study;
• Patient unable to read or write French;

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Other: Standard of care plus additional questionaire; As part of this clinical investigation, the medical device under investigation is used in accordance with its usual use, and the patient's therapeutic procedure includes additional, non-invasive procedures. These additional procedures relate to the addition of an endof- life visit and validated questionnaires assessing functional deficiencies and impact on daily life.

Device: Electrical stimulation and biofeedback with Phenix Liberty medical device; 12 sessions of electrical stimulation and biofeedback performed between 6 and 8 weeks at regular intervals according to a schedule drawn up by the physiotherapist. The patient will undergo 12 therapeutic functional reeducation sessions, at regular intervals according to a schedule drawn up by the physiotherapist, during which the PHENIX LIBERTY device may be used. The patients will complete questionnaires at the end of the care. Overall, the functional rehabilitation sessions will include muscle testing, electrostimulation and biofeedback. The follow up will be conduct as follow : 12 sessions between 6 and 8 weeks; 1 end visit, within the week after the 12th session

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Mean change in Lower Extremity Functional Scale (LEFS) score on the impact of locomotor disorders of the knee	The Lower Extremity Functional Scale (LEFS) is used by physiotherapists and occupational therapists in many clinical settings. It is an English-language measurement tool that collects psychometric data and assesses the functional status of the lower limbs. It consists of 20 questions on the level of difficulty experienced during everyday activities.	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)
Mean change in the Oswestry Disability Index (ODI) score for the impact of locomotor disorders of the spine.	The ODI will be used to assess the disability caused by Lower Back Pain (LBP) The Oswestry Disability Index (ODI), a patient-completed questionnaire that gives a subjective percentage score of the level of function (disability) in activities of daily living in people undergoing rehabilitation after low back pain. The questionnaire examines the level of disability in 10 activities of daily living. Each item consists of 6 statements rated from 0 to 5. With 0 indicating the lowest level of disability and 5 the highest, the total score is calculated as a percentage, with 0% indicating no disability and 100% indicating the highest level of disability.	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in patients' visual analog scale (VAS) pain scores for knee pain and/or spine pain at rest and on palpation	The pain caused by the TMS of the knee and/or the spine will be assessed by the Visual Analogue Scale (VAS). The VAS is made up of a 10-centimeter line anchored by two ends of the pain. 10 is the first end being the "maximum pain imaginable" and 0 is the other end being "no pain"	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)
Trends in consumption of painkillers and anti-inflammatories	Rate of consuption of painkillers and anti-inflammatories	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)
Changes in the rate of improvement of hypertonia of the concerned area (knee or spine) through measurement of myoelectric activity	A surface Electromyography (EMG) will be used. Muscle electrical activity provides a "map" of muscle recruitment according to exercise conditions (position, relative load, type of resistance, type of support, etc.).	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)
Changes in the rate of improvement of hypertonia of the concerned area (knee or spine) through Oxford Grading Scale	The Oxford scale is commonly used to manually assess muscle strength, and can help diagnose problems in which weakness plays a role. According to the Oxford scale, muscle strength is rated from 0 to 5 (0 being no muscle contraction > 5 being movement through a full range against full resistance). Scoring is as follows: 0 → No visible or palpable contraction, 1 → Visible/palpable muscle contraction but no movement, 2 → Movement across full range with gravity eliminated (low strength), 3 → Movement across full range against gravity only (fair strength), 4 → Movement across full range against gravity with some resistance (good strength), 5 → Movement across full range against gravity with full resistance (normal strength).	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)
Changes in the rate of improvement in awakening and muscle strengthening through Oxford grading scale	The Oxford scale is commonly used to manually assess muscle strength, and can help diagnose problems in which weakness plays a role. According to the Oxford scale, muscle strength is rated from 0 to 5 (0 being no muscle contraction > 5 being movement through a full range against full resistance). Scoring is as follows: 0 → No visible or palpable contraction, 1 → Visible/palpable muscle contraction but no movement, 2 → Movement across full range with gravity eliminated (low strength), 3 → Movement across full range against gravity only (fair strength), 4 → Movement across full range against gravity with some resistance (good strength), 5 → Movement across full range against gravity with full resistance (normal strength).	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)
Changes in the rate of improvement in awakening and muscle strengthening through measurement of myoelectric activity	A surface Electromyography (EMG) will be used. Muscle electrical activity provides a "map" of muscle recruitment according to exercise conditions (position, relative load, type of resistance, type of support, etc.).	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)
Changes of microcirculation of the concerned spine area	Assessment on the basis of clinical palpation examination done by the practitioner	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)
Changes of the microcirculation of the concerned knee area	The measurement of the muscular perimeter around the concerned knee will be assessed by a tape measure	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)
Changes of the improvement of the motor control through the measurement of myoelectrical activity	A surface Electromyography (EMG) will be used. Muscle electrical activity provides a "map" of muscle recruitment according to exercise conditions (position, relative load, type of resistance, type of support, etc.).	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)
Change in patient's quality of life	The SF-36 will be used to assess the quality of life score. The SF-36, as described in the name, is a 36-item patient-reported questionnaire that covers eight health domains: physical functioning (10 items), bodily pain (2 items), role limitations due to physical health problems (4 items), role limitations due to personal or emotional problems (4 items), emotional well-being (5 items), social functioning (2 items), energy/fatigue (4 items), and general health perceptions (5 items). Scores for each domain range from 0 to 100, with a higher score defining a more favorable health state.	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)
Pecentage of patients with an improvement in locomotor disorders	This outcome will be assessed according to the practitioner's opinion. Does the practitioner think that an improvement has been observed --> Yes / No ?	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)
Incidence of adverse events	Rate of the incidence of adverse events related to the medical device	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)
Evaluation of responses to the patient satisfaction questionnaire on the use of the PHENIX LIBERTY device after therapeutic management	The satisfaction questionnaire is constructed on the basis of the Likert Scale. The sponsor has written an questionnaire regarding the use of the Phenix Liberty for the patient. The Likert scale (or attitude scale) is a semantic rating system, generally consisting of 5 or 7 items, used in surveys to measure and evaluate perceptions, attitudes and opinions. The evaluation will be based on the following responses: Strongly agree (=5) ; Agree (=4) ; Rather agree (=3) ; Rather disagree (=2) ; Disagree (=1= ; Strongly disagree (=0). The minimum score 0 means a worse outcome and the maximum score 5 means a better outcome.	At Day 0 and Week 11 (at the end visit within the week after the 12th seance)

Collaborators and Investigators

• Sponsor: Vivaltis
• Collaborators: CEISO; Human Physio
• Investigators: Principal Investigator: Mathias Willame, Human Physio

Study record dates

Study Major Dates

• Study Start (Estimated): May 30, 2024
• Primary Completion (Estimated): December 19, 2024
• Study Completion (Estimated): December 19, 2024

Study Registration Dates

• First Submitted: June 22, 2023
• First Submitted That Met QC Criteria: June 22, 2023
• First Posted (Actual): July 3, 2023

Study Record Updates

• Last Update Posted (Actual): April 17, 2024
• Last Update Submitted That Met QC Criteria: April 15, 2024
• Last Verified: April 1, 2024

More Information

Terms related to this study

• Keywords: Low Back Pain; Knee; Biofeedback; Electrical stimulation
• Additional Relevant MeSH Terms: Musculoskeletal Diseases
• Other Study ID Numbers: 2023-A02460-45

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No