Surgical treatment for facial movement issues after Bell's palsy

Neurotomy to Treat Synkinesis Following Peripheral Facial Palsy

NA · Karolinska University Hospital · NCT05191719

This study is testing if a surgical procedure called neurotomy can help people with severe facial movement issues after Bell's palsy feel better when Botox hasn't worked for them.

Quick facts

PhaseNA
Study typeInterventional
Enrollment73 (estimated)
Ages18 Years to 64 Years
SexAll
SponsorKarolinska University Hospital (other)
Locations1 site (Stockholm)
Trial IDNCT05191719 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of neurotomy as an alternative to Botox injections for patients suffering from severe synkinesis following peripheral facial palsy. Participants who have not found relief from Botox treatments will undergo a surgical procedure where problematic branches of the facial nerve are identified and separated from healthy ones. The study will assess outcomes through clinical evaluations, neurophysiological measurements, and quality of life questionnaires at multiple time points over a year. The aim is to determine if neurotomy can provide better results than the current standard treatment.

Who should consider this trial

Good fit: Ideal candidates are individuals with severe synkinesis following peripheral facial palsy who have not responded satisfactorily to Botox injections.

Not a fit: Patients who have had synkinesis for less than two years or have other severe health conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could offer significant improvement in facial function and quality of life for patients with severe synkinesis.

How similar studies have performed: While neurotomy is a novel approach for this specific condition, similar surgical interventions have shown promise in treating other nerve-related issues.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Synkinesis following peripheral facial palsy
* Sunnybrook score \<61
* Botox injections at least 3 times a year
* Have received at least 3 Botox injections
* Botox injections not satisfying treatment
* Read and signed written consent

Exclusion Criteria:

* Synkinesis since less than 2 years
* Contractures in facial muscles
* Other planned surgery in the face during study period
* Smoking
* Uncontrolled hypertension
* Diabetes mellitus
* Pregnancy or breast feeding
* Severe systemic disease (ASA 3-4)

Where this trial is running

Stockholm

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.

View on ClinicalTrials.gov →

Conditions: Facial Paralysis, Facial Palsy, Peripheral Facial Palsy, Peripheral Facial Paralysis, Bell Palsy, Synkinesis

Last reviewed 2026-05-15 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.