Testing DaxibotulinumtoxinA for treating eyelid and facial spasms

The Safety and Efficacy of DaxibotulinumtoxinA-Lanm for Benign Essential Blepharospasm and Hemifacial Spasm

Phase 4 Interventional Montefiore Medical Center · NCT06195241

This study is testing if a new treatment called DaxibotulinumtoxinA can help people with eyelid and facial spasms feel better compared to their previous Botox treatment.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment40 (estimated)
Ages18 Years and up
SexAll
SponsorMontefiore Medical Center Academic / other
Locations1 site (The Bronx, New York)
Trial IDNCT06195241 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to evaluate the effects of DaxibotulinumtoxinA-Lanm (Daxxify) in patients suffering from benign essential blepharospasm (BEB) and hemifacial spasm (HFS). It employs a single-arm, crossover design where participants previously treated with Botox will switch to Daxxify, allowing for a direct comparison of efficacy using their own historical data. The study will assess the clinical response through the Jankovic Rating Scale (JRS) and monitor immediate effects within 48-72 hours post-treatment. Adverse effects will also be documented to ensure patient safety.

Who should consider this trial

Good fit: Ideal candidates include adults diagnosed with benign essential blepharospasm or hemifacial spasm who have not undergone prior surgical interventions for these conditions.

Not a fit: Patients under 18, pregnant individuals, or those with contraindications to botulinum toxin will not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide significant relief from spasms for patients with BEB and HFS, improving their quality of life.

How similar studies have performed: Previous studies have shown positive outcomes with botulinum toxin treatments for similar conditions, suggesting potential success for this novel approach with DaxibotulinumtoxinA.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Benign essential blepharospasm (BEB) or hemifacial spasm (HFS) as diagnosed by an ophthalmologist.
* No known neurologic or neuromuscular systematic medications.
* No history or surgical intervention for BEB or HFS.
* Patients are required to have a minimum score of 4 out of 8 on the modified Jankovic Rating Scale for Severity/Frequency.

Exclusion Criteria:

* Patients will be excluded if age \< 18, are pregnant, are non-willing, or have contra-indications to botulinum toxin.

Where this trial is running

The Bronx, New York

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 Benign Essential BlepharospasmHemifacial Spasm
Last reviewed 2026-06-13 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.