NCT05625191

Brief Summary

There is a substantial need to identify objective measures associated with hyperadduction of the vocal folds to recognize those at higher risk of developing phonotrauma so that risk mitigation strategies can be implemented before phonotrauma develops. The overall objective of this proposed project is to investigate the sensitivity and direction of change in cepstral peak prominence (CPP) and the magnitude difference between the first two harmonics of the voice spectrum (H1-H2) in response to varied phonation patterns, which will be addressed using the following two aims: Aim 1: Determine how CPP and H1-H2 change as a function of using pressed voice production in individuals without laryngeal pathology. Aim 2: Examine the sensitivity (minimally detectable change) and responsiveness (minimal clinically important difference) of CPP and H1-H2 to detect changes in different voice production conditions.

Trial Health

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Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2023

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

November 2, 2022

Completed
20 days until next milestone

First Posted

Study publicly available on registry

November 22, 2022

Completed
2 months until next milestone

Study Start

First participant enrolled

January 17, 2023

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2025

Completed
Last Updated

July 30, 2025

Status Verified

July 1, 2025

Enrollment Period

3 years

First QC Date

November 2, 2022

Last Update Submit

July 28, 2025

Conditions

Outcome Measures

Primary Outcomes (3)

  • Cepstral Peak Prominence

    Cepstral peak prominence is a measure of the periodic energy of the acoustic voice signal.

    1 year

  • The difference between the first and second harmonic (H1-H2)

    H1-H2 is a spectral measure derived from the acoustic voice signal that correlates with glottal configuration.

    1 year

  • Average closing velocity

    Vocal fold closing phase velocity averaged across 100 vibratory cycles

    1 year

Study Arms (2)

Control Group- Without Phonotrauma

Videoendoscopy and acoustic recordings using a head-mounted microphone with a voice-specialized SLP for participants without voice disorders, acoustic recordings will involve the five repetitions of three vowels (/ɑ, i, u/) and a standard reading passage (Rainbow Passage) in three voice conditions (breathy, typical, and pressed). For all participants, high-speed videoendoscopy and simultaneous acoustic recording will occur on one repetition of a sustained /i/ in each requested condition.

Diagnostic Test: Acoustic voice analysis

Patients Diagnosed with Phonotrauma

Videoendoscopy and acoustic recordings using a head-mounted microphone with a voice-specialized SLP for Participants who have a diagnosis of phonotrauma will be instructed to produce five repetitions of the same three vowels but in only two conditions: typical voice and "resonant" voice following stimulability assessment and with cues. They will be instructed to maintain relatively consistent volume and pitch across conditions. For all participants, high-speed videoendoscopy and simultaneous acoustic recording will occur on one repetition of a sustained /i/ in each requested condition.

Diagnostic Test: High-speed videoendoscopy

Interventions

Acoustic recordings will involve the five repetitions of three vowels (/ɑ, i, u/) and a standard reading passage (Rainbow Passage) in different voice conditions. Control participants will produce voice in breathy, typical, and pressed conditions. Patient participants will produce voice in typical production and in a resonant voice production. High-speed videoendoscopy and simultaneous acoustic recording will occur on one repetition of a sustained /i/ in each requested condition. Data will be collected using a head-mounted microphone.

Control Group- Without Phonotrauma

High-speed videoendoscopy will occur on one repetition of a sustained /i/ in each requested condition. Exams will be recorded using the Phantom V311 high-speed camera (Vision Research, Wayne, NJ) connected to a Storz 70° rigid laryngoscope using a 400 Watt Xenon light source (Titan 400E).

Patients Diagnosed with Phonotrauma

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients (18-65 years of age) with a diagnosis of phonotrauma will be recruited from the laryngology clinics at UTSW Voice Center. All patients who are diagnosed with phonotraumatic vocal fold lesions (including vocal fold nodules, phonotraumatic polyps, mid-fold edema, and pseudocysts) will be referred for enrollment. Individuals without phonotrauma (18-65 years of age) will be recruited for the control group.

You may qualify if:

  • years of age (to avoid confounding physiological factors related to puberty or presbyphonia)
  • No history of or current voice disorder
  • Auditory perceptual presentation globally within functional limits (as determined by a voice specialized SLP).

You may not qualify if:

  • Atypical auditory-perceptual voice presentation
  • History of voice disorder or laryngeal surgery.
  • Patient Group:
  • Diagnosed with phonotrauma (i.e., vocal fold nodules, vocal fold polyp, vocal fold pseudocyst, mid-fold edema) by a laryngologist.
  • years of age
  • Diagnosis of voice disorder not related to phonotrauma (e.g., vocal fold immobility, laryngeal dystonia, primary muscle tension dysphonia, etc.)
  • Previous history of laryngeal surgery or voice therapy (to avoid confounding effects of previous treatment).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UT Southwestern Medical Center

Dallas, Texas, 75235, United States

RECRUITING

Related Publications (6)

  • Hillman RE, Stepp CE, Van Stan JH, Zanartu M, Mehta DD. An Updated Theoretical Framework for Vocal Hyperfunction. Am J Speech Lang Pathol. 2020 Nov 12;29(4):2254-2260. doi: 10.1044/2020_AJSLP-20-00104. Epub 2020 Oct 2.

    PMID: 33007164BACKGROUND
  • Verdolini K, Hess MM, Titze IR, Bierhals W, Gross M. Investigation of vocal fold impact stress in human subjects. J Voice. 1999 Jun;13(2):184-202. doi: 10.1016/s0892-1997(99)80022-8.

    PMID: 10442749BACKGROUND
  • Klatt DH, Klatt LC. Analysis, synthesis, and perception of voice quality variations among female and male talkers. J Acoust Soc Am. 1990 Feb;87(2):820-57. doi: 10.1121/1.398894.

    PMID: 2137837BACKGROUND
  • Awan SN, Roy N, Jette ME, Meltzner GS, Hillman RE. Quantifying dysphonia severity using a spectral/cepstral-based acoustic index: Comparisons with auditory-perceptual judgements from the CAPE-V. Clin Linguist Phon. 2010 Sep;24(9):742-58. doi: 10.3109/02699206.2010.492446.

    PMID: 20687828BACKGROUND
  • Murton O, Hillman R, Mehta D. Cepstral Peak Prominence Values for Clinical Voice Evaluation. Am J Speech Lang Pathol. 2020 Aug 4;29(3):1596-1607. doi: 10.1044/2020_AJSLP-20-00001. Epub 2020 Jul 13.

    PMID: 32658592BACKGROUND
  • Toles LE, Ortiz AJ, Marks KL, Burns JA, Hron T, Van Stan JH, Mehta DD, Hillman RE. Differences Between Female Singers With Phonotrauma and Vocally Healthy Matched Controls in Singing and Speaking Voice Use During 1 Week of Ambulatory Monitoring. Am J Speech Lang Pathol. 2021 Jan 27;30(1):199-209. doi: 10.1044/2020_AJSLP-20-00227. Epub 2021 Jan 20.

    PMID: 33472007BACKGROUND

Central Study Contacts

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

November 2, 2022

First Posted

November 22, 2022

Study Start

January 17, 2023

Primary Completion

December 30, 2025

Study Completion

December 30, 2025

Last Updated

July 30, 2025

Record last verified: 2025-07

Locations