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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT04323085
Other study ID # 115713
Secondary ID
Status Not yet recruiting
Phase Phase 2
First received
Last updated
Start date July 2020
Est. completion date December 2021

Study information

Verified date March 2020
Source Lawson Health Research Institute
Contact Scott Adams, PhD
Phone 519661-2111
Email sadams@uwo.ca
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Hypophonia, or reduced speech intensity, is the most prevalent speech symptom in Parkinson's disease (PD) and often leads to significant difficulty communicating in most social situations. Behavioural treatments for hypophonia can be temporarily effective but many individuals fail to retain and transfer improvements beyond the context of the speech clinic. The present study will address the transfer of treatment problem using two new treatment programs. Both treatments focus on improving speech intensity during conversations in different social contexts and a wide range of background noise conditions. The Speech-in-Noise (SIN) treatment program involves training higher speech intensity during variable levels of background noise while receiving real-time intensity feedback from a speech therapist. The second treatment, the Speech-to-Noise Feedback (SNF) device treatment program, involves using a wearable SNF device to provide feedback about an ideal target speech-to-noise level in a wide range of background noise conditions. Forty individuals with PD and their communication partners (i.e. spouse) will be randomly assigned to one of the two treatment programs. To evaluate the effectiveness of the treatments, a wearable recording device will measure daily conversational speech intensity and background noise for 7 consecutive days before, 1 week after, and 12 weeks after treatment.


Description:

Parkinson's disease is one of the most common neurodegenerative diseases and is associated with several disabling motor and non-motor symptoms. About 70% of individuals with PD will develop speech impairments. Hypophonia, or reduced speech intensity, is the most prevalent speech symptom and often leads to significant difficulty communicating in most social situations. Behavioural treatments for hypophonia can be temporarily effective but many individuals fail to retain and transfer improvements beyond the context of the speech clinic. These transfer difficulties may be related to cognitive and sensorimotor deficits associated with PD that inhibit the incorporation of new speech strategies into habitual speech. This transfer of treatment problem is a longstanding and major concern in the treatment of speech in PD.

The present study will address the transfer of treatment problem using two new treatment programs. Both treatments focus on improving speech intensity during conversations in different social contexts and a wide range of background noise conditions. The Speech-in-Noise (SIN) treatment program involves training higher speech intensity during variable levels of background noise while receiving real-time intensity feedback from a speech therapist in social situations inside and outside of the clinic. The second treatment, the Speech-to-Noise Feedback (SNF) device treatment program, involves using a wearable SNF device to provide feedback about an ideal target speech-to-noise level in a wide range of background noise conditions inside and outside of the speech clinic.

Forty individuals with PD and their communication partners (i.e. spouse) will be randomly assigned to one of the two treatment programs. In addition, half of the participants will be randomly assigned to a 13-week delayed treatment group and serve as both untreated controls and treated participants.

To evaluate the effectiveness of the treatments, measures of improvement in speech intensity and speech-to-noise levels will be obtained during everyday social conversations. A wearable recording device will measure daily conversational speech intensity and background noise for 7 consecutive days at three time points: before, 1 week after, and 12 weeks after treatment. The effectiveness of treatment will be also measured using two questionnaires and standard, lab-based speech assessments.

It is anticipated that the evaluation and comparison of these two novel treatment paradigms will advance our understanding of procedures that are most effective for enhancing the transfer of treatment for hypophonia into everyday social conversations in individuals with Parkinson's disease.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 80
Est. completion date December 2021
Est. primary completion date September 2021
Accepts healthy volunteers No
Gender All
Age group 45 Years to 85 Years
Eligibility Inclusion Criteria:

- Diagnosed with idiopathic PD and hypophonia by a neurologist at least 6 months prior to participation.

- Stabilized on antiparkinsonian medication.

- Good general health.

- 45-85 years old.

- Pass a 50 dB hearing screening and cognitive screening (>20/30 on MOCA).

- Proficient enough in English to participate in speech testing.

Exclusion Criteria:

- History of stroke or an additional neurological or motor control disorder.

- History of speech impairment that is unrelated to PD.

Study Design


Related Conditions & MeSH terms


Intervention

Behavioral:
Speech-in-Noise Treatment Program
Speech therapy program for hypophonia.
Speech-to-Noise Feedback Device Program
Speech Feedback device program for hypophonia.

Locations

Country Name City State
Canada LawsonHRI London Ontario

Sponsors (1)

Lead Sponsor Collaborator
Lawson Health Research Institute

Country where clinical trial is conducted

Canada, 

Outcome

Type Measure Description Time frame Safety issue
Primary speech-to-noise ratio Average speech-to-noise ratio obtained from long-term conversation samples 7 days
Secondary communication effectiveness ratings Self-ratings of communication effectiveness using an 8-item questionnaire. 7 days
Secondary communication participation ratings Self-ratings of communication participation using a 28 item questionnaire. 7 days
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