Trial Outcomes & Findings for Communication Bridge 2 (NCT NCT03371706)

NCT ID: NCT03371706

Last Updated: 2024-10-17

Results Overview

Communication Confidence Rating Scale in Aphasia, a 0-100 numeric rating scale with 0 representing 'not confident' and 100 representing 'very confident'. Higher scores indicate greater confidence.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

190 participants

Primary outcome timeframe

5 assessment time points through study completion - Baseline, Post Intervention 1 (3 months), Six months, Post Intervention 2 (9 months), and 12 months

Results posted on

2024-10-17

Participant Flow

Participant milestones

Participant milestones
Measure
Communication Bridge™ (Persons With Primary Progressive Aphasia)
Participants receive Communication Bridge™, a multi-component, participation-focused, dyadic intervention in which both the person with PPA and their co-enrolled communication partner are intervention recipients. Communication Bridge™ is modelled on the Living with Aphasia: Framework for Outcome Measurement (A-FROM) and the Care Pathway Model that was developed for persons living with primary progressive aphasia. Consistent with participation-focused intervention models personally salient training stimuli are incorporated into all therapy activities in the Experimental arm. Communication Bridge™: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Communication Bridge™ (Care Partners
Participants receive Communication Bridge™, a multi-component, participation-focused, dyadic intervention in which both the person with PPA and their co-enrolled communication partner are intervention recipients. Communication Bridge™ is modelled on the Living with Aphasia: Framework for Outcome Measurement (A-FROM) and the Care Pathway Model that was developed for persons living with primary progressive aphasia. Consistent with participation-focused intervention models personally salient training stimuli are incorporated into all therapy activities in the Experimental arm. Communication Bridge™: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Evidence-Based Impairment Focused (Persons With Primary Progressive Aphasia)
The Control arm includes a non-dyadic intervention in which the person with PPA is the active intervention recipient and their communication partner is in a supporting role. In the Control arm, participants receive a speech-language intervention designed to address impairment and functional limitations, comprised of activities that address word retrieval and 'automatic' speech production using fixed, non-personalized, stimuli across participants. Evidence-Based Impairment Focused: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Evidence-Based Impairment Focused (Care Partners)
The Control arm includes a non-dyadic intervention in which the person with PPA is the active intervention recipient and their communication partner is in a supporting role. In the Control arm, participants receive a speech-language intervention designed to address impairment and functional limitations, comprised of activities that address word retrieval and 'automatic' speech production using fixed, non-personalized, stimuli across participants. Evidence-Based Impairment Focused: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Overall Study
STARTED
56
56
39
39
Overall Study
COMPLETED
50
50
39
39
Overall Study
NOT COMPLETED
6
6
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Communication Bridge 2

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Communication Bridge™ (Persons With Primary Progressive Aphasia)
n=56 Participants
Participants receive Communication Bridge™, a multi-component, participation-focused, dyadic intervention in which both the person with PPA and their co-enrolled communication partner are intervention recipients. Communication Bridge™ is modelled on the Living with Aphasia: Framework for Outcome Measurement (A-FROM) and the Care Pathway Model that was developed for persons living with primary progressive aphasia. Consistent with participation-focused intervention models personally salient training stimuli are incorporated into all therapy activities in the Experimental arm. Communication Bridge™: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Evidence-Based Impairment Focused (Persons With Primary Progressive Aphasia)
n=39 Participants
The Control arm includes a non-dyadic intervention in which the person with PPA is the active intervention recipient and their communication partner is in a supporting role. In the Control arm, participants receive a speech-language intervention designed to address impairment and functional limitations, comprised of activities that address word retrieval and 'automatic' speech production using fixed, non-personalized, stimuli across participants. Evidence-Based Impairment Focused: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Total
n=95 Participants
Total of all reporting groups
Age, Customized
Age at baseline
66.9 years
STANDARD_DEVIATION 7.2 • n=5 Participants
67.4 years
STANDARD_DEVIATION 7.8 • n=7 Participants
67.1 years
STANDARD_DEVIATION 7.4 • n=5 Participants
Sex: Female, Male
Female
25 Participants
n=5 Participants
24 Participants
n=7 Participants
49 Participants
n=5 Participants
Sex: Female, Male
Male
31 Participants
n=5 Participants
15 Participants
n=7 Participants
46 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
56 Participants
n=5 Participants
38 Participants
n=7 Participants
94 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
White
56 Participants
n=5 Participants
37 Participants
n=7 Participants
93 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Years of education
16.2 years
STANDARD_DEVIATION 2.5 • n=5 Participants
16.7 years
STANDARD_DEVIATION 2.3 • n=7 Participants
16.4 years
STANDARD_DEVIATION 2.4 • n=5 Participants

PRIMARY outcome

Timeframe: 5 assessment time points through study completion - Baseline, Post Intervention 1 (3 months), Six months, Post Intervention 2 (9 months), and 12 months

Population: the number analyzed in some rows differs from the overall number analyzed due to participant withdrawal and missing data.

Communication Confidence Rating Scale in Aphasia, a 0-100 numeric rating scale with 0 representing 'not confident' and 100 representing 'very confident'. Higher scores indicate greater confidence.

Outcome measures

Outcome measures
Measure
Communication Bridge™ (Person With Primary Progressive Aphasia)
n=56 Participants
Participants receive Communication Bridge™, a multi-component, participation-focused, dyadic intervention in which both the person with PPA and their co-enrolled communication partner are intervention recipients. Communication Bridge™ is modelled on the Living with Aphasia: Framework for Outcome Measurement (A-FROM) and the Care Pathway Model that was developed for persons living with primary progressive aphasia. Consistent with participation-focused intervention models personally salient training stimuli are incorporated into all therapy activities in the Experimental arm. Communication Bridge™: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Evidence-Based Impairment Focused (Person With Primary Progressive Aphasia)
n=39 Participants
The Control arm includes a non-dyadic intervention in which the person with PPA is the active intervention recipient and their communication partner is in a supporting role. In the Control arm, participants receive a speech-language intervention designed to address impairment and functional limitations, comprised of activities that address word retrieval and 'automatic' speech production using fixed, non-personalized, stimuli across participants. Evidence-Based Impairment Focused: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Change in Communication Confidence (CCRSA)
Baseline
72.6 units on a scale
Standard Error 1.8
72.9 units on a scale
Standard Error 2.6
Change in Communication Confidence (CCRSA)
Post Intervention 1 (3 months)
73.7 units on a scale
Standard Error 1.9
74.5 units on a scale
Standard Error 2.4
Change in Communication Confidence (CCRSA)
Six Months
72.1 units on a scale
Standard Error 2.1
73.1 units on a scale
Standard Error 2.5
Change in Communication Confidence (CCRSA)
Post Intervention 2 (9 months)
72.2 units on a scale
Standard Error 2.2
71.6 units on a scale
Standard Error 2.5
Change in Communication Confidence (CCRSA)
12 Months
69.1 units on a scale
Standard Error 2.7
70.1 units on a scale
Standard Error 2.5

PRIMARY outcome

Timeframe: 5 assessment time points through study completion - Baseline, Post Intervention 1 (3 months), Six months, Post Intervention 2 (9 months), and 12 months

Population: the number analyzed in some rows differs from the overall number analyzed due to participant withdrawal and missing data.

Communication Participation Item Bank is a 4-point rating scale with 0 representing 'very much' and 3 representing 'not at all'. Higher scores indicate greater severity of communication challenges. We are reporting on change in CPIB scores using T-scores. The Communicative Participation Item Bank (CPIB) T-score range is as follows: T57.5 and above: Represents a "normal" experience of communicative participation or "minimal problems" T57.5-T45: Represents mild challenges T45-T35: Represents moderate challenges T35 and below: Represents severe challenges The CPIB is a patient-reported instrument that measures communicative participation. The mean T-score is 50, and the standard deviation is 10. Higher scores are more favorable, indicating less interference in participation. The ideal score, or someone who reports no problems with communicative participation, would be a T-score of 74.3

Outcome measures

Outcome measures
Measure
Communication Bridge™ (Person With Primary Progressive Aphasia)
n=56 Participants
Participants receive Communication Bridge™, a multi-component, participation-focused, dyadic intervention in which both the person with PPA and their co-enrolled communication partner are intervention recipients. Communication Bridge™ is modelled on the Living with Aphasia: Framework for Outcome Measurement (A-FROM) and the Care Pathway Model that was developed for persons living with primary progressive aphasia. Consistent with participation-focused intervention models personally salient training stimuli are incorporated into all therapy activities in the Experimental arm. Communication Bridge™: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Evidence-Based Impairment Focused (Person With Primary Progressive Aphasia)
n=39 Participants
The Control arm includes a non-dyadic intervention in which the person with PPA is the active intervention recipient and their communication partner is in a supporting role. In the Control arm, participants receive a speech-language intervention designed to address impairment and functional limitations, comprised of activities that address word retrieval and 'automatic' speech production using fixed, non-personalized, stimuli across participants. Evidence-Based Impairment Focused: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Change in Communication Participation Item Bank (CPIB)
Baseline
46.0 units on a scale
Standard Error 0.8
47.1 units on a scale
Standard Error 1.0
Change in Communication Participation Item Bank (CPIB)
Post Intervention 1 (3 months)
47.4 units on a scale
Standard Error 0.9
47.7 units on a scale
Standard Error 1.9
Change in Communication Participation Item Bank (CPIB)
Six Months
45.6 units on a scale
Standard Error 1.0
46.8 units on a scale
Standard Error 1.1
Change in Communication Participation Item Bank (CPIB)
Post Intervention 2 (9 months)
46.0 units on a scale
Standard Error 0.9
46.3 units on a scale
Standard Error 1.0
Change in Communication Participation Item Bank (CPIB)
12 Months
45.5 units on a scale
Standard Error 1.0
45.0 units on a scale
Standard Error 1.0

PRIMARY outcome

Timeframe: 4 assessment time points through study completion - Post Intervention 1 (3 months), Six months, Post Intervention 2 (9 months), and 12 months

This measure assesses progress toward communication participation goals using Goal Attainment Scaling (GAS). Participants developed personalized goals, each set to a baseline value of '0'. Progress was tracked using a 7-point scale, where -3 represents 'no longer participating' and +3 represents 'exceeded goal'. Higher scores indicate better progress toward goal achievement. Goals were evaluated at 3, 6, 9, and 12 months, with the results reported as the percentage of goals that: Worsened (scores of -1, -2, or -3) No change (score remained at 0) Improved (scores of +1, +2, or +3), including getting close to, reaching, or exceeding the goal. The table below presents the percentage of goals falling into each of these categories at each assessment point.

Outcome measures

Outcome measures
Measure
Communication Bridge™ (Person With Primary Progressive Aphasia)
n=159 Number of Goals
Participants receive Communication Bridge™, a multi-component, participation-focused, dyadic intervention in which both the person with PPA and their co-enrolled communication partner are intervention recipients. Communication Bridge™ is modelled on the Living with Aphasia: Framework for Outcome Measurement (A-FROM) and the Care Pathway Model that was developed for persons living with primary progressive aphasia. Consistent with participation-focused intervention models personally salient training stimuli are incorporated into all therapy activities in the Experimental arm. Communication Bridge™: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Evidence-Based Impairment Focused (Person With Primary Progressive Aphasia)
n=116 Number of Goals
The Control arm includes a non-dyadic intervention in which the person with PPA is the active intervention recipient and their communication partner is in a supporting role. In the Control arm, participants receive a speech-language intervention designed to address impairment and functional limitations, comprised of activities that address word retrieval and 'automatic' speech production using fixed, non-personalized, stimuli across participants. Evidence-Based Impairment Focused: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Change in Communication Participation Person Centered Goals
Post Intervention 1 - (Worse than baseline)
3.8 percentage of goals
6.9 percentage of goals
Change in Communication Participation Person Centered Goals
Post Intervention 1 - (No change from baseline)
29.6 percentage of goals
44.0 percentage of goals
Change in Communication Participation Person Centered Goals
Post Intervention 1 - (Getting close to, reached, or exceed) goal
66.7 percentage of goals
49.1 percentage of goals
Change in Communication Participation Person Centered Goals
Six Months - (Worse than baseline)
16.3 percentage of goals
18.0 percentage of goals
Change in Communication Participation Person Centered Goals
Six Months - (No change from baseline)
23.5 percentage of goals
35.0 percentage of goals
Change in Communication Participation Person Centered Goals
Six Months - (Getting close to , reached, or exceeded expected goal)
60.1 percentage of goals
47.0 percentage of goals
Change in Communication Participation Person Centered Goals
Post Intervention 2 - (Worse than baseline)
16.0 percentage of goals
18.8 percentage of goals
Change in Communication Participation Person Centered Goals
Post Intervention 2 - (No change from baseline)
22.0 percentage of goals
26.5 percentage of goals
Change in Communication Participation Person Centered Goals
Post Intervention 2 - (Getting close to, reached or exceeded expected goal)
62.0 percentage of goals
54.7 percentage of goals
Change in Communication Participation Person Centered Goals
12 Months (Worse than baseline)
21.3 percentage of goals
20.2 percentage of goals
Change in Communication Participation Person Centered Goals
12 Months - (No change from baseline)
18.0 percentage of goals
23.7 percentage of goals
Change in Communication Participation Person Centered Goals
12 Months - (Getting close to, reached or exceeded expected goal)
60.7 percentage of goals
56.1 percentage of goals

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 assessment time points through study completion - Baseline, Post Intervention 1 (3 months), Six months, Post Intervention 2 (9 months), and 12 months

proportion of participants accuracy on trained words. Higher values indicate greater number of words produced after first prompt. Range 0 - 30

Outcome measures

Outcome measures
Measure
Communication Bridge™ (Person With Primary Progressive Aphasia)
n=56 Participants
Participants receive Communication Bridge™, a multi-component, participation-focused, dyadic intervention in which both the person with PPA and their co-enrolled communication partner are intervention recipients. Communication Bridge™ is modelled on the Living with Aphasia: Framework for Outcome Measurement (A-FROM) and the Care Pathway Model that was developed for persons living with primary progressive aphasia. Consistent with participation-focused intervention models personally salient training stimuli are incorporated into all therapy activities in the Experimental arm. Communication Bridge™: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Evidence-Based Impairment Focused (Person With Primary Progressive Aphasia)
n=39 Participants
The Control arm includes a non-dyadic intervention in which the person with PPA is the active intervention recipient and their communication partner is in a supporting role. In the Control arm, participants receive a speech-language intervention designed to address impairment and functional limitations, comprised of activities that address word retrieval and 'automatic' speech production using fixed, non-personalized, stimuli across participants. Evidence-Based Impairment Focused: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Change in Word Accuracy (Trained Words)
Baseline
18.2 words
Standard Error 1.0
13.6 words
Standard Error 1.1
Change in Word Accuracy (Trained Words)
Post Intervention 1 (PIE1) (3 months)
25.2 words
Standard Error 0.8
25.1 words
Standard Error 1.0
Change in Word Accuracy (Trained Words)
Six Months
23.6 words
Standard Error 1.0
23.5 words
Standard Error 1.0
Change in Word Accuracy (Trained Words)
Post Intervention 2 (PIE2) (9 months)
25.1 words
Standard Error 0.9
23.7 words
Standard Error 1.1
Change in Word Accuracy (Trained Words)
12 months
22.7 words
Standard Error 1.1
21.8 words
Standard Error 1.2

OTHER_PRE_SPECIFIED outcome

Timeframe: 5 assessment time points through study completion - Baseline, Post Intervention 1 (3 months), Six months, Post Intervention 2 (9 months), and 12 months

proportion of participants accuracy on trained scripts. Higher values indicate greater level of script performance as a proportion. Range 0 - 1.

Outcome measures

Outcome measures
Measure
Communication Bridge™ (Person With Primary Progressive Aphasia)
n=56 Participants
Participants receive Communication Bridge™, a multi-component, participation-focused, dyadic intervention in which both the person with PPA and their co-enrolled communication partner are intervention recipients. Communication Bridge™ is modelled on the Living with Aphasia: Framework for Outcome Measurement (A-FROM) and the Care Pathway Model that was developed for persons living with primary progressive aphasia. Consistent with participation-focused intervention models personally salient training stimuli are incorporated into all therapy activities in the Experimental arm. Communication Bridge™: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Evidence-Based Impairment Focused (Person With Primary Progressive Aphasia)
n=39 Participants
The Control arm includes a non-dyadic intervention in which the person with PPA is the active intervention recipient and their communication partner is in a supporting role. In the Control arm, participants receive a speech-language intervention designed to address impairment and functional limitations, comprised of activities that address word retrieval and 'automatic' speech production using fixed, non-personalized, stimuli across participants. Evidence-Based Impairment Focused: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Change in Script Accuracy (Trained Scripts)
Post Intervention 2 (PIE2) (9 months)
0.66 proportion of accuracy
Standard Error 0.04
0.70 proportion of accuracy
Standard Error 0.05
Change in Script Accuracy (Trained Scripts)
Baseline
0.23 proportion of accuracy
Standard Error 0.03
0.27 proportion of accuracy
Standard Error 0.03
Change in Script Accuracy (Trained Scripts)
Post Intervention 1 (PIE1) (3 months)
0.59 proportion of accuracy
Standard Error 0.05
0.64 proportion of accuracy
Standard Error 0.06
Change in Script Accuracy (Trained Scripts)
Six Months
0.60 proportion of accuracy
Standard Error 0.05
0.62 proportion of accuracy
Standard Error 0.06
Change in Script Accuracy (Trained Scripts)
12 Months
0.60 proportion of accuracy
Standard Error 0.05
0.55 proportion of accuracy
Standard Error 0.06

Adverse Events

Communication Bridge™

Serious events: 7 serious events
Other events: 5 other events
Deaths: 0 deaths

Evidence-Based Impairment Focused

Serious events: 4 serious events
Other events: 7 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Communication Bridge™
n=56 participants at risk
Participants receive Communication Bridge™, a multi-component, participation-focused, dyadic intervention in which both the person with PPA and their co-enrolled communication partner are intervention recipients. Communication Bridge™ is modelled on the Living with Aphasia: Framework for Outcome Measurement (A-FROM) and the Care Pathway Model that was developed for persons living with primary progressive aphasia. Consistent with participation-focused intervention models personally salient training stimuli are incorporated into all therapy activities in the Experimental arm. Communication Bridge™: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Evidence-Based Impairment Focused
n=39 participants at risk
The Control arm includes a non-dyadic intervention in which the person with PPA is the active intervention recipient and their communication partner is in a supporting role. In the Control arm, participants receive a speech-language intervention designed to address impairment and functional limitations, comprised of activities that address word retrieval and 'automatic' speech production using fixed, non-personalized, stimuli across participants. Evidence-Based Impairment Focused: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Surgical and medical procedures
Medical event
10.7%
6/56 • Number of events 6 • 1 year
10.3%
4/39 • Number of events 6 • 1 year
Social circumstances
Psychosocial events
1.8%
1/56 • Number of events 1 • 1 year
0.00%
0/39 • 1 year

Other adverse events

Other adverse events
Measure
Communication Bridge™
n=56 participants at risk
Participants receive Communication Bridge™, a multi-component, participation-focused, dyadic intervention in which both the person with PPA and their co-enrolled communication partner are intervention recipients. Communication Bridge™ is modelled on the Living with Aphasia: Framework for Outcome Measurement (A-FROM) and the Care Pathway Model that was developed for persons living with primary progressive aphasia. Consistent with participation-focused intervention models personally salient training stimuli are incorporated into all therapy activities in the Experimental arm. Communication Bridge™: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Evidence-Based Impairment Focused
n=39 participants at risk
The Control arm includes a non-dyadic intervention in which the person with PPA is the active intervention recipient and their communication partner is in a supporting role. In the Control arm, participants receive a speech-language intervention designed to address impairment and functional limitations, comprised of activities that address word retrieval and 'automatic' speech production using fixed, non-personalized, stimuli across participants. Evidence-Based Impairment Focused: Evidence-based speech language therapy treatment will be compared and contrasted in the two arms of the study.
Social circumstances
Frustration/Fatigue due to cognitive testing
1.8%
1/56 • Number of events 1 • 1 year
0.00%
0/39 • 1 year
Social circumstances
Frustration/Fatigue due to therapy sessions
1.8%
1/56 • Number of events 1 • 1 year
0.00%
0/39 • 1 year
Social circumstances
Psychosocial events
5.4%
3/56 • Number of events 3 • 1 year
17.9%
7/39 • Number of events 10 • 1 year

Additional Information

Dr. Emily Rogalski

University of Chicago

Phone: 855-824-7887

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place