RecruitingRecruiting
Examining Interactions Between PALS and Caregivers
NCT06819124 · Penn State University
In plain English
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Official title
Examining Interactions Between Persons With ALS and Caregivers
About this study
PALS and Caregivers will participate in two sets (pre-test and post-test) of interactive tasks two weeks apart. Over two weeks, they will complete the collaborative word-matching task ten times (once every weekday for an average of 10 mins/day) on their own.
The study is designed to examine two things. First, to examine the speech produced by PALS with familiar interlocutors. Second, to examine the changes in speech production as a function of collaborative practice.
Plans for Assignment - This is a single group study in which all participants will engage in the same tasks.
Delivery of Intervention: Using tablets and audio recording devices provided to them, participants will complete this task in the comfort of their home. Study protocols will be explained via videoconferencing by experimenters. Produced speech will be recorded using solid-state audio recorders as well as remotely through the video conferencing software.
Adequacy of Sample size. Assuming medium effect sizes (Cohen's f = 0.3) based on our pilot data, for 80% power at an alpha of .05, the investigators will require 76 speakers. The investigators propose n =76 PALS and their caregivers (total 152) in order to account for speech variability that is common for PALS.
Adequacy of Analyses. The proposed statistical analyses (Generalized mixed effects regressions) are standard and will be used to analyze the effect of the intervention on the outcome measures described below. Severity of condition (for PALS) will be included in the analyses and by-subject slopes and intercepts will be used to account for variability across participants.
Eligibility criteria
Inclusion Criteria:
Speakers with amyotrophic lateral sclerosis (ALS) (PALS-people with ALS)
* diagnosis of ALS following the revised EL Escorial criteria
* no history of other neurological conditions (e.g., stroke)
* no cognitive impairment assessed by Telephone Montreal Cognitive Assessment (mini MoCA)
* detectable speech disturbance according to the ALS Functional Rating Scale-Revised (ALSFRS-R)
* the ability to produce single words
* being a native speaker of American English (AE).
Caregivers
* being a caregiver of a participant with ALS
* being a native speaker of American English (AE).
Exclusion Criteria:
\- None - if volunteer meets the inclusion criteria, then they will be enrolled
Study design
Enrollment target: 152 participants
Allocation: na
Masking: none
Age groups: adult, older_adult
Timeline
Starts: 2025-01-22
Estimated completion: 2029-02-28
Last updated: 2026-04-06
Interventions
Behavioral: Structured Communicative InteractionBehavioral: Unstructured communicative interaction
Primary outcomes
- • Formant frequencies of speech sounds (two 60 minute sessions)
- • Intelligibility of recorded speech (two 60 minute sessions)
- • Syntactic properties (Two 60 minute sessions)
Sponsor
Penn State University · other
With: National Institute on Deafness and Other Communication Disorders (NIDCD)
Contacts & investigators
ContactAnne Olmstead, Ph.D. · contact · ajo150@psu.edu · 814-867-3373
ContactNavin Viswanathan, Ph.D · contact · nxv175@psu.edu · 814-867-2340
InvestigatorJimin Lee, Ph.D. · principal_investigator, Penn State University
InvestigatorAnne Olmstead, Ph.D. · principal_investigator, Penn State University
InvestigatorNavin Viswanathan, Ph.D. · principal_investigator, Penn State University
All locations (1)
Speech Core, Pennsylvania State UniversityRecruiting
University Park, Pennsylvania, United States