# The Effects of Voice Therapy Based on the Estill Voice Model: a Feasibility Study

> **NCT02647840** · NA · COMPLETED · sponsor: **Royal Devon and Exeter NHS Foundation Trust** · enrollment: 18 (actual)

## Conditions studied

- Functional Dysphonia

## Interventions

- **BEHAVIORAL:** voice therapy

## Key facts

- **NCT ID:** NCT02647840
- **Lead sponsor:** Royal Devon and Exeter NHS Foundation Trust
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2016-05
- **Primary completion:** 2017-03-28
- **Final completion:** 2017-04-27
- **Target enrollment:** 18 (ACTUAL)
- **Last updated:** 2019-08-21


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02647840

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02647840, "The Effects of Voice Therapy Based on the Estill Voice Model: a Feasibility Study". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT02647840. Licensed CC0.

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