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CompletedNCT01197339Updated Jan 25, 2016

Hybrid Model of Vocal Inflammation and Tissue Mobilization

A Phase 1 interventional study of resonant voice and voice rest in Acute Phonotrauma, sponsored by University of Pittsburgh. Completed at 1 site in United States. Open to female participants aged 18 Years to 40 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-01-25.

Sponsored by University of Pittsburgh · Phase 1, Interventional, and Basic science

Phase
Phase 1
Study type
Interventional
Enrollment
45
Allocation
Randomized
Ages
18 Years to 40 Years
Sex
Female
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Study summary

The purpose of this study is to generate a technology that will allow clinicians to prescribe behavioral treatment that should optimize tissue healing for both acute and chronic phonotrauma. In this study, we propose to (1): establish a non-invasive methodology for estimating overall mechanical dose during phonation, and component metrics of phonatory mechanical dose (e.g., distance dose, energy dissipation dose and time dose) from high speed imaging data and aeromechanical modeling, for a range of vocal fold configurations (Experiment 1); (2): identify mathematical relations between treatment dose parameters, inflammatory state of the tissue and time-varying biological consequences in the tissue, up to 2 wk following acute phonotrauma (Experiment 2); (3): develop a hybrid physical-biological model of vocal fold inflammation and treatment to identify treatment modalities that should optimize post-traumatic wound healing at 2 wk, for a range of acute phonotraumatic conditions (Experiment 3-no human subject involved), and (4): provide a preliminary test of the hybrid treatment models' ability to predict idealized treatment outcome in human subjects, and calibrate the model as needed iteratively to achieve a match between predicted and obtained outcomes (Experiment 4).

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Conditions studied

  • Acute Phonotrauma

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Keywords

  • acute phonotrauma
  • computer modeling
  • resonant voice
  • breathy voice
  • voice rest
  • relaxation
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In context

Inflammation

3,439 studies on the registry are indexed under Inflammation; 629 are open to participants now.

This study's enrollment of 45 is close to the median of 50 across 2,436 interventional studies indexed under Inflammation.

Browse Inflammation studies →

Lead sponsor

University of Pittsburgh is the lead sponsor of 1,385 studies on the registry; 167 are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 4 (50%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 40 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Inclusion criteria

  • healthy females
  • ages 18-40
  • generally healthy
  • normal hearing bilaterally at 20 dB to 8,000 Hz
  • have ability to produce "resonant voice" during training as determined by the examiner perceptually
  • Tolerate rigid and nasal endoscopy without anesthesia to the larynx nasal patency allowing for the passage of an endoscope unilaterally

Exclusion criteria

Exclusion Criteria:

  • Smoking within the past five yr
  • Failing a hearing screening test
  • Having current chronic voice problems
  • Having current medications that are determined to possibly influence voice
  • Having heightened gag reflex
  • Having known or suspected allergy to anesthetics
  • Pregnancy reported
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Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Factorial assignment
Masking
Single (Outcomes assessor)
Enrollment
45 participants (actual)

Study arms

  • Experimental
    treatment

    Behavioral: resonant voice · Behavioral: Breathy voice · Behavioral: Relaxation exercise · Behavioral: Resonant voice and relaxation exercise

  • Sham comparator
    Controls

    Behavioral: voice rest

Interventions

  • Behavioralresonant voice

    A 4-hr resonant voice exercise will be prescribed to subjects following vocal loading.

  • Behavioralvoice rest

    A 4-hr voice rest will be prescribed to subjects following vocal loading.

  • BehavioralBreathy voice

    A 4-hr breathy voice exercise will be prescribed to subjects following vocal loading.

  • BehavioralRelaxation exercise

    A 4-hr relaxation exercise will be prescribed to subjects following vocal loading.

    Also known as: meditation

  • BehavioralResonant voice and relaxation exercise

    A 4-hr resonant voice and relaxation exercise will be prescribed to subjects following vocal loading.

    Also known as: Resonant voice and meditation exercise

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What researchers measure

Primary outcomes

  1. Biomarker levels in laryngeal secretion

    Time frame: up to 2 months

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Study locations

1 site
  • Univesity of Pittsburgh
    Pittsburgh, Pennsylvania 15260, United States
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References and documents

Publications

  • Li NY, Abbott KV, Rosen C, An G, Hebda PA, Vodovotz Y. Translational systems biology and voice pathophysiology. Laryngoscope. 2010 Mar;120(3):511-5. doi: 10.1002/lary.20755. PubMed 20025041 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 25, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01197339
Lead sponsor
University of Pittsburgh
Collaborators
National Institute on Deafness and Other Communication Disorders (NIDCD), McGill University, Purdue University
Responsible party
Kittie Verdolini Abbott (Professor, University of Pittsburgh) — Principal investigator
First posted
Sep 9, 2010
Start date
Sep 2010
Primary completion
Mar 2013
Completion
Mar 2013
Last update
Jan 25, 2016

Study contacts

Katherine Verdolini Abbott, Ph.D.
principal investigator · University of Pittsburgh

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2016. You cannot join it, but the record below documents what was studied.

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