Evaluating Heart Rate Variability Biofeedback for Functional Neurological Disorders

Probing the Heart Rate Variability Biofeedback as an Innovative and Non-invasive Treatment for Functional Neurological Disorders Guided by a Multimodal Approach of Autonomic Nervous System.

Not applicable Interventional Centre hospitalier de l'Université de Montréal (CHUM) · NCT06422819

This study tests if Heart Rate Variability Biofeedback can help people with Functional Neurological Disorders feel better compared to a placebo.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment31 (estimated)
Ages18 Years to 70 Years
SexAll
SponsorCentre hospitalier de l'Université de Montréal (CHUM) Academic / other
Locations1 site (Montreal, Quebec)
Trial IDNCT06422819 on ClinicalTrials.gov

What this trial studies

This study evaluates the clinical effects of Heart Rate Variability Biofeedback (HRV-BFB) in patients with Functional Neurological Disorders (FND) compared to a placebo. It aims to explore the relationship between emotional dysregulation and autonomic nervous system profiles in FND patients. Participants will undergo a comprehensive clinical evaluation and complete emotional tasks while their autonomic responses are measured. The study employs a single-blind crossover design to assess the varying responses to HRV-BFB based on individual autonomic profiles.

Who should consider this trial

Good fit: Ideal candidates are adults diagnosed with Functional Neurological Disorders who are fluent in French and can use a smartphone.

Not a fit: Patients with severe psychiatric conditions, significant autonomic dysfunctions, or those requiring specialized medical attention may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to personalized therapies that improve the management of Functional Neurological Disorders.

How similar studies have performed: While HRV-BFB has shown promise in other populations, this specific application in adults with Functional Neurological Disorders is novel and has not been previously assessed.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Functional Neurological Disorders (FND) diagnosis must be medically established
* Participants must have a smartphone (android ou Iphone)
* Participants must be of the age of majority
* Participants must have signed an informed consent
* Sufficiently fluent in French to understand study documents and instructions
* Consistency in performing repeated questionnaires
* Normal or corrected-to-normal visual acuity

Exclusion Criteria:

* Specially protected participants: juveniles, pregnant womens, nursing mothers, law's protection peoples
* Participants suffering from a severe psychiatric disease needing specialised attention
* History of severe neurosurgical pathology
* Alcohol dependence or drug use
* Participants suffering from or have suffered from a severe disease causing autonomic dysfunctions (heart failure, asthma, blood disease, renal failure, peripheral neuropathy, vagotomy, thyroid disorder, alcoholism, liver disease, amyloidosis)
* Participants taking medication which could be impact autonomic nervous system activity (anticholinergic, antiarrhythmics, clonidine, beta-blockers, tricyclic anti-depressants, metronidazole)
* Participants placing under judicial or administrative supervisions

Where this trial is running

Montreal, Quebec

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.
Conditions Functional Neurological DisorderEmotional dysregulationAutonomic nervous systemEndophenotypesBiofeedback of Heart Rate VariabilityTransdiagnostic approach
Last reviewed 2026-06-09 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.