# Understanding Disorder-specific Neural Pathophysiology in Laryngeal Dystonia and Voice Tremor

> **NCT05216770** · EARLY_PHASE1 · RECRUITING · sponsor: **Massachusetts Eye and Ear Infirmary** · enrollment: 165 (estimated)

## Conditions studied

- Laryngeal Dystonia
- Spasmodic Dysphonia
- Tremor

## Interventions

- **OTHER:** Brain imaging
- **DRUG:** Laryngeal sensory block with topical bupivacaine

## Key facts

- **NCT ID:** NCT05216770
- **Lead sponsor:** Massachusetts Eye and Ear Infirmary
- **Sponsor class:** OTHER
- **Phase:** EARLY_PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2022-03-24
- **Primary completion:** 2027-08-31
- **Final completion:** 2027-08-31
- **Target enrollment:** 165 (ESTIMATED)
- **Last updated:** 2025-12-02

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05216770

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05216770, "Understanding Disorder-specific Neural Pathophysiology in Laryngeal Dystonia and Voice Tremor". Retrieved via AI Analytics 2026-07-22 from https://api.ai-analytics.org/clinical/NCT05216770. Licensed CC0.

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