NCT03906877

Brief Summary

The aim of this study is to understand how early intervention could impact reinnervation of the recurrent laryngeal nerve (which innervates the vocal cord), recovery of mobility of the paralyzed vocal cord and / or vocal recovery in the case of unilateral vocal fold paralysis. To achieve this goal we must therefore carry out a complete outcomes assessment of different intervention methods (voice therapy and injection laryngoplasty), which are offered to UVFP (unilateral vocal fold paralysis) patients in the early stage (\< 3 months). Their respective impacts on the central and peripheral nervous system and on the voice quality will be assessed, taking into account factors related to the severity of the paralysis.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
6

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Nov 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 29, 2019

Completed
10 days until next milestone

First Posted

Study publicly available on registry

April 8, 2019

Completed
7 months until next milestone

Study Start

First participant enrolled

November 15, 2019

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2023

Completed
Last Updated

November 24, 2023

Status Verified

November 1, 2023

Enrollment Period

3.9 years

First QC Date

March 29, 2019

Last Update Submit

November 22, 2023

Conditions

Outcome Measures

Primary Outcomes (5)

  • Laryngeal recurrent nerve reinnervation

    Defined through qualitative laryngeal electromyography

    9 to 12 months after paralysis

  • Recovery of the vocal fold mobility

    Videostroboscopy examination to analyse vocal folds movements in three dimensions

    9 to 12 months after paralysis

  • Voice recovery

    Multidimensional voice assessment (based on anamnestic interview, Maximum Phonation Time in sec, Mean Air Flow in ml/sec, Mean subglottic pressure in cmH2O, Jitter in %, Shimmer in %, Noise-to-harmonic ratio, phonetogram, smoothed cepstral peak prominence in %, Voice Handicap Index - VHI-30 (\*total\* : 0-120, higher value = worse outcome), Medical Outcomes Study 36-item Short Form Healthy Survey (\*8 subscales\* : 0-100, higher value = better outcome, Eating Assessment Tool-10 (\*total\*: 0-40, higher value = worse outcome), GRBAS-I (\*6 subscales\* : 0-3, higher value = worse outcome), Acoustic Voice Quality Index, Dysphonia Severity Index (DSI = 0.13 x MPT + 0.0053 x F(0)-High - 0.26 x I-Low - 1.18 x Jitter (%) + 12.4),Tonal and vocal audiometries in dB)

    9 to 12 months after paralysis

  • Changes in the neuronal pathways involved in the processing of the proprioceptive and auditory inputs

    Functional magnetic resonance imaging examination (tomodensitometry and connectivity)

    9 to 12 months after paralysis

  • Central auditory processes

    Auditory perception tasks performed using an audio headset

    Within 3 months after paralysis

Study Arms (3)

Injection laryngoplasty group (IL)

EXPERIMENTAL

The patients in the first group will receive an IL of hyaluronic acid in the paralyzed vocal fold within a maximum of three months after the onset of symptoms. The Ear-Noise-Throat (ENT) physician will perform the injection in office, under topical anaesthesia.

Procedure: Acid hyaluronic injection laryngoplastyOther: Sham of voice therapy

Voice therapy group (VT)

EXPERIMENTAL

Patients from the second group will be involved in 15 sessions of thirty minutes of voice therapy, twice a week, and will have to do home practice. Patients will have to record these training sessions. Initiation of this intervention should also take place within the first three months after the onset of symptoms. They will also receive an injection of physiological saline under the skin of the neck (sham of injection).

Behavioral: Voice therapyOther: Sham of injection

Sham group

SHAM COMPARATOR

The patients of the third group will be treated following the traditional wait-and-see policy. They will receive an injection of physiological saline under the skin of the neck and will be seen during 15 sessions of 30 minutes, twice a week. Therefore, this will be a sham procedure for both IL and VT.

Other: Sham of injectionOther: Sham of voice therapy

Interventions

Hyaluronic acid is injected into the paralyzed vocal fold

Injection laryngoplasty group (IL)
Voice therapyBEHAVIORAL

15 sessions of thirty minutes of voice therapy, twice a week, and home practice. This voice management will be specific to unilateral vocal fold paralysis and will focus on three objectives: reinforcement of the vocal muscle, glottal closure and glottal opening. These three objectives will be worked through different vocal exercises (on voiced phonemes) and breathing exercises

Voice therapy group (VT)

Injection of physiological saline under the skin of the neck (sham of injection).

Sham groupVoice therapy group (VT)

15 sessions of thirty minutes of voice therapy, twice a week, and home practice. This voice management will not be specific to UVFP but may allow patients to improve their vocal gesture.

Injection laryngoplasty group (IL)Sham group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • \- Unilateral paralysis in abduction of the vocal cords may be included in the study.

You may not qualify if:

  • Wear a pacemaker or other implanted devices (prostheses ...).
  • Wear metal clips, metal in the head, or an adjustable brain drain.
  • Wear non-removable dental appliances (except fillings).
  • Wear cardiac valve prostheses.
  • Have worked the metals.
  • Have a tattoo containing metal particles.
  • Have implanted jewelry (e.g., piercing).
  • Being prone to epileptic seizures.
  • Take medications that alter cortical excitability.
  • Have had a brain surgery.
  • Suffer from intracranial hypertension.
  • Be pregnant or breastfeeding recently.
  • Present allergies that are incompatible with the experimental protocol.
  • Have an abnormal hearing loss in view of their age, identified with tonal and / or vocal audiometry.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cliniques Universitaires St Luc

Brussels, 1200, Belgium

Location

MeSH Terms

Conditions

Vocal Cord Paralysis

Condition Hierarchy (Ancestors)

Laryngeal DiseasesRespiratory Tract DiseasesOtorhinolaryngologic DiseasesVagus Nerve DiseasesCranial Nerve DiseasesNervous System DiseasesParalysisNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Gauthier Desuter

    SSS/MEDE and SSS/IONS/NEUR

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 29, 2019

First Posted

April 8, 2019

Study Start

November 15, 2019

Primary Completion

September 30, 2023

Study Completion

September 30, 2023

Last Updated

November 24, 2023

Record last verified: 2023-11

Data Sharing

IPD Sharing
Will not share

Locations