NCT05858216

Brief Summary

The goal of this clinical trial is to learn about voice function before and 3 hours after administration of first generation over-the-counter antihistamine in individuals who have been medically diagnosed with allergies and routinely take over-the-counter (OTC) antihistamines for allergy symptoms. The main questions are:

  1. 1.Do first generation OTC antihistamines make voice function worse as measured via voice acoustic and aerodynamic measures? It is hypothesized that all objectives measures will reflect a negative change in voice function.
  2. 2.Do first generation OTC antihistamines make voice function worse as measured via participant and researcher perceptual measures? It is hypothesized that participants will rate their vocal function as more effortful after taking the antihistamine and researchers will rate voice quality as worse.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
8

participants targeted

Target at below P25 for early_phase_1

Timeline
Completed

Started Jun 2023

Shorter than P25 for early_phase_1

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 26, 2023

Completed
19 days until next milestone

First Posted

Study publicly available on registry

May 15, 2023

Completed
29 days until next milestone

Study Start

First participant enrolled

June 13, 2023

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 15, 2024

Completed
8 days until next milestone

Study Completion

Last participant's last visit for all outcomes

April 23, 2024

Completed
Last Updated

April 24, 2024

Status Verified

April 1, 2024

Enrollment Period

10 months

First QC Date

April 26, 2023

Last Update Submit

April 23, 2024

Conditions

Outcome Measures

Primary Outcomes (9)

  • Urine specific gravity (g/ml)

    Objective measurement of systemic hydration

    Start of trial

  • Fundamental frequency (Hertz)

    Sustained "a" task from which the cycles of vocal fold vibration per second are extracted.

    Change from Baseline Fundamental Frequency at 3 hours

  • Speaking fundamental frequency (Hertz)

    Standard reading task from which the average cycles per second of vocal fold vibration are extracted.

    Change from Baseline Fundamental Frequency at 3 hours

  • Harmonic-to-Noise ratio (decibels, dB)

    Sustained "a" task from which a ratio of the harmonic acoustic components of the signal relative to the noise components of the acoustic signal are determined

    Change from Baseline Fundamental Frequency at 3 hours

  • Cepstral peak prominence (decibels, dB)

    An acoustic measurement of voice quality deviation that is extracted from a recorded speech sample.

    Change from Baseline Fundamental Frequency at 3 hours

  • Phonation threshold pressure (cm/H20)

    An aerodynamic measurement of the minimum amount of subglottal pressure required to initiate vocal fold vibration for voicing

    Change from Baseline Fundamental Frequency at 3 hours

  • Videostroboscopy (video of vocal fold vibration)

    Standard clinical endoscopic imaging of laryngeal structure and function

    Change from Baseline Fundamental Frequency at 3 hours

  • OMNI-Vocal Effort Scale (scaled score)

    A validated scale of perceived vocal effort that provides a scale of 1-10 from which to determine how much vocal effort was produced.

    Change from Baseline Fundamental Frequency at 3 hours

  • Rating-of-Fatigue (ROF; scaled score)

    A validated scale of perceived voice fatigue

    Change from Baseline Fundamental Frequency at 3 hours

Study Arms (1)

Chlor-Trimeton

OTHER

Package recommended dose of over the counter Chlor-Trimeton will be administered to assess voice function before and 3 hours after taking it.

Drug: Chlor-Trimeton.

Interventions

Package dose of Chlor-Trimeton will be administered

Chlor-Trimeton

Eligibility Criteria

Age18 Years - 35 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • the ability to match pitch on a screening task
  • have diagnosed allergies of the upper airway
  • a SNOT-22 score of 20 or greater (19)
  • pass videostroboscopic prescreening for laryngeal pathologies
  • no history of voice disorder
  • ability to comfortably breathe through both their nose and mouth
  • no history of drying medications other than the antihistamine, reflux, respiratory diseases, diabetes, neurological problems, hormone imbalance, pregnancy, breastfeeding over the preceding 6 months, or active smoker at the time of investigation.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Speech, Language & Hearing Sciences, Auburn University

Auburn, Alabama, 36849, United States

Location

MeSH Terms

Interventions

Chlorpheniramine

Intervention Hierarchy (Ancestors)

PheniraminePyridinesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Study Officials

  • Mary J Sandage, PhD

    Auburn University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
NA
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Model Details: Within participant repeated measures design
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

April 26, 2023

First Posted

May 15, 2023

Study Start

June 13, 2023

Primary Completion

April 15, 2024

Study Completion

April 23, 2024

Last Updated

April 24, 2024

Record last verified: 2024-04

Data Sharing

IPD Sharing
Will not share

Locations