Evidence map›Paper›PMID 40145390›Full record

Trial reportAlzheimer's & dementia : the journal of the Alzheimer's Association2025

Efficacy of Communication Bridge-2 for primary progressive aphasia: A randomized controlled trial of communication intervention.

Emily Rogalski, Matthew Bona, Marissa Esparza, Ollie Fegter, Rhiana Schafer, Aimee Mooney, Melanie Fried-Oken, Alfred Rademaker, Angela Roberts

Abstract readRandomized Controlled TrialClinical Trial, Phase II
In one paragraph

Trial report in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed.

  1. Trial
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  4. Review
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  8. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Emily RogalskiHealthy Aging & Alzheimer's Research Care (HAARC) Center, Biological Sciences Division, University of Chicago, Chicago, Illinois, USA.ORCID 0000-0002-6472-1363
Matthew BonaHealthy Aging & Alzheimer's Research Care (HAARC) Center, Biological Sciences Division, University of Chicago, Chicago, Illinois, USA.
Marissa EsparzaAuthentic Expression, LLC, Skokie, Illinois, USA.
Ollie FegterHealthy Aging & Alzheimer's Research Care (HAARC) Center, Biological Sciences Division, University of Chicago, Chicago, Illinois, USA.
Rhiana SchaferHealthy Aging & Alzheimer's Research Care (HAARC) Center, Biological Sciences Division, University of Chicago, Chicago, Illinois, USA.
Aimee MooneyInstitute of Development and Disability, Oregon Health & Science University, Portland, Oregon, USA.
Melanie Fried-OkenInstitute of Development and Disability, Oregon Health & Science University, Portland, Oregon, USA.
Alfred RademakerHealthy Aging & Alzheimer's Research Care (HAARC) Center, Biological Sciences Division, University of Chicago, Chicago, Illinois, USA.
Angela RobertsDepartment of Computer Science, Western University, London, Ontario, Canada.

Funding

Neuropathology CoreP30AG013854 · NIA · NORTHWESTERN UNIVERSITY AT CHICAGO · PI VASSAR, ROBERT J · 1996 to 2020
$28.9M
Research Education Core FP30AG072977 · NIA · NORTHWESTERN UNIVERSITY AT CHICAGO · PI ROBERT J VASSAR · 2021 to 2026
$26.3M
Communication Bridge: Optimizing an evidence-based intervention for individuals with primary progressive aphasiaR01AG055425 · NIA · UNIVERSITY OF CHICAGO · PI EMILY J ROGALSKI, Angela Christine Roberts · 2017 to 2026
$14.8M
ASYMMETRIC NEURODEGENERATION AND LANGUAGE IN PRIMARY PROGRESSIVE APHASIAR01AG077444 · NIA · NORTHWESTERN UNIVERSITY AT CHICAGO · PI MAREK-MARSEL M MESULAM, EMILY J ROGALSKI · 2022 to 2026
$10.4M
Determinants of neurodegenerative decline in the aphasic variant of Alzheimer's diseaseR01AG056258 · NIA · UNIVERSITY OF CHICAGO · PI ROGALSKI, EMILY J · 2017 to 2022
$4.1M
Communication Bridge: A person-centered Internet-based intervention for individuals with primary progressive aphasiaR56AG055425 · NIA · NORTHWESTERN UNIVERSITY AT CHICAGO · PI ROBERTS, ANGELA CHRISTINE, ROGALSKI, EMILY J · 2022 to 2022
$2.2M
Determinants of Neurodegenerative Decline in Primary Progressive AphasiaR01NS075075 · NINDS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI ROGALSKI, EMILY J · 2012 to 2016
$1.7M
National Institute on Aging (NIA) of the National Institutes of Health P30AG072977National Institute on Aging (NIA) of the National Institutes of Health P30AG13854National Institute on Aging (NIA) of the National Institutes of Health R01AG055425National Institute on Aging (NIA) of the National Institutes of Health R01AG056258National Institute on Aging (NIA) of the National Institutes of Health R01AG077444National Institute on Aging (NIA) of the National Institutes of Health R01NS075075National Institute on Aging (NIA) of the National Institutes of Health R56AG055425NIA NIH HHS P30 AG013854NIA NIH HHS P30 AG072977NIA NIH HHS R01 AG055425NIA NIH HHS R01 AG056258NIA NIH HHS R01 AG077444NIA NIH HHS R56 AG055425NINDS NIH HHS R01 NS075075
6 · The paper itself

Abstract

introductionPrimary progressive aphasia (PPA), a language-based neurodegenerative dementia, negatively impacts communication and quality of life. Previous non-pharmacologic interventions show promise but lack efficacy trials. Here, outcomes are provided from Communication Bridge-2 (CB2), a speech-language randomized controlled trial (RCT) for PPA.

methodsCB2 is the first Phase 2, Stage II, parallel-group RCT delivered via video chat with global enrollment. Ninety-five dyads were randomized into one of two speech-language intervention arms. Primary outcomes included communication confidence and participation measures. Marginal linear models assessed efficacy across ≈12 months.

resultsNinety-five dyads were randomized from four countries. Experimental arm superiority in communication-participation measurement of goal attainment was demonstrated (66.7% vs 49.1%, respectively, p = 0.006), and corroborated by post-study interviews. DISCUSSION: Outcomes demonstrate the feasibility and initial efficacy of a person-centered telemedicine intervention for maximizing communication participation for mild-to-moderate PPA, providing a pathway for developing and implementing clinically meaningful interventions for Alzheimer's disease and related dementias. HIGHLIGHTS: Primary progressive aphasia (PPA) negatively impacts communication participation. Communication Bridge-2 (CB2) is a telemedicine-delivered randomized controlled trial (RCT). Global recruitment of 95 PPA participant dyads into an RCT with low dropout. First international superiority trial for PPA using video chat shows efficacy. The study provides a model for rigorous non-pharmacologic trials for Alzheimer's disease/Alzheimer's disease and related dementias (AD/ADRD).

Indexed as

Aphasia, Primary ProgressiveCommunicationAgedAged, 80 and overFemaleHumansMaleMiddle AgedQuality of LifeTelemedicineTreatment OutcomeAlzheimer's diseasebehavioral interventioncommunication participationfrontotemporal dementia (FTD)Goal Attainment Scalingnon‐pharmacologic interventionpatient‐reported outcomesprimary progressive aphasiaspeech and language therapysuperiority trialtelehealth

Identifiers

PMID40145390
PMCPMC11947768

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.