AI-CONECT: A Conversational AI for Early Dementia Prevention in Socially-Isolated Older Adults (AI-CONECT)
AI-CONECT: A Conversational AI for Early Dementia Prevention in Socially-Isolated Older Adults Based on the Efficacy-Proven I-CONECT Study
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
Social isolation is a well-established and modifiable risk factor for cognitive decline and dementia. The completed I-CONECT trial (NCT02871921) showed that frequent, one-to-one, semi-structured conversational engagement delivered remotely by trained human interviewers improved cognitive outcomes among socially isolated older adults with mild cognitive impairment. Two limitations have constrained translating that approach into a scalable preventive intervention: its reliance on trained human interviewers limits scalability, and the behavioral mechanisms responsible for its cognitive benefits remain incompletely understood.
AI-CONECT addresses both limitations by delivering the conversational intervention through a conversational artificial intelligence (AI) voice chatbot rather than a human interviewer, and by testing a hypothesized behavioral mechanism: that the intervention increases participants' social self-efficacy (confidence in their ability to engage socially), which in turn increases real-world social engagement.
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Phase
Phase
- Unzutreffend
Kontakte und Standorte
Studienkontakt
Studienkontakt
- Name: Catherine Young
- Telefonnummer: 617-724-2428
- E-Mail: cyoung@mgh.harvard.edu
Studienorte
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Massachusetts
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Boston, Massachusetts, Vereinigte Staaten, 02129
- Massachusetts General Hospital
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Kontakt:
- Catherine Young
- Telefonnummer: 617-724-2428
- E-Mail: cyoung@mgh.harvard.edu
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Kontakt:
- Junyuan Hong, PhD
- Telefonnummer: 517-668-5790
- E-Mail: mr.junyuan.hong@gmail.com
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- Aged 75+
- Clinical diagnosis of MCI (any subtype) or, when a clinical diagnosis is unavailable, a Telephone-MoCA (T-MoCA) score of 15-17.
- Identified as socially isolated, defined as meeting both of the following self-reported criteria: (a) lives alone in one's own residence, and (b) engages in conversations lasting 30 minutes or longer no more than twice per week.
- GDS-15 (15-item Geriatric Depression Scale) at/below 9 (not severely depressed).
- Social self-efficacy mean ≤ 8 (on the 0-10 scale) across the 6-item Social Self-Efficacy Scale at screening, indicating low confidence in social interaction.
- Ability to understand the research consent form.
- Ability to connect a tablet to the Internet.
Exclusion Criteria:
- Diagnosed with dementia such as AD, ischemic vascular dementia, normal pressure hydrocephalus, or Parkinson's disease.
- Schizophrenia, or other major psychiatric disorder defined by DSM-IV criteria.
- Medications: (a) Frequent use of high doses of analgesics; Use of sedative medications except for those used occasionally for sleep (≤2 per week); (b) Use of unstable dosing of Cholinesterase inhibitors (need to be stable dosing for 2 months); (c) AD disease modifying monoclonal antibody treatment e.g., aducanumab or lecanemab (completed the treatment is allowed)
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Verhütung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Single
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
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Experimental: AI-CONECT
Participants will receive four 15- to 30-minute conversations per week with the AI agent and a weekly 10- to15-minute survey call with a human interviewer.
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AI-based one-on-one semi-structured conversation for cognitive stimulation
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Kein Eingriff: Control
Participants will receive a weekly 10- to 15-minute survey call with a human interviewer.
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Social Self-Efficacy
Zeitfenster: From enrollment to the end of intervention at 8 weeks
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Participants' self-efficacy on social interactions using an instrument adapted from the Exercise Self-Efficacy Scale (EXSE, by McAuley, 1993).
The scale comprises three items of confidence: interacting with others regularly, engaging with others when feeling less connected, and engaging others in conversations.
The three items are adapted to social interaction in person and using technology (e.g., video calls), respectively.
Each item is rated from 0 (not at all confident) to 10 (completely confident).
A mean score is computed across the six items (range 0-10), with higher scores indicating greater social self-efficacy.
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From enrollment to the end of intervention at 8 weeks
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Time contacting friends or family
Zeitfenster: From enrollment to the end of the intervention at 8 weeks, using weekly data
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Change in weekly time contacting friends or family.
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From enrollment to the end of the intervention at 8 weeks, using weekly data
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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Time out of home
Zeitfenster: From enrollment to the end of treatment at 8 weeks
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Self-reported weekly time out of home (a proximate measure of social engagement by the participants), using weekly data.
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From enrollment to the end of treatment at 8 weeks
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Frequency of contacting friends
Zeitfenster: From enrollment to the end of treatment at 8 weeks
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Self-reported frequency of contacting friends, using weekly data.
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From enrollment to the end of treatment at 8 weeks
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Andere Ergebnismessungen
Andere Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Exploratory outcome: Social isolation score
Zeitfenster: From baseline to week 8
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Changes in Lubben's social isolation score (6-item version) from baseline to Week 8. The 6-item Lubben Social Network Scale (LSNS-6) is a brief measure of social isolation/social network size and support, particularly in older adults. It includes three questions about family ties and three about friendships, assessing the number of people the individual has contact with, feels close to, and can call on for help. Each item is scored from 0 to 5, giving a total score of 0-30. Higher scores indicate stronger social networks and less social isolation. |
From baseline to week 8
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Exploratory outcome: Changes in the 3-item UCLA Loneliness Scale (UCLA-3)
Zeitfenster: From baseline to week 8
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The 3-item UCLA Loneliness Scale (UCLA-3) is a brief measure of perceived loneliness and social disconnection.
It asks how often a person feels a lack of companionship, left out, and isolated from others.
Each item is scored from 1 (hardly ever) to 3 (often).
The total score ranges from 3 to 9, with higher scores indicating greater loneliness.
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From baseline to week 8
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Mitarbeiter
Mitarbeiter
Ermittler
Ermittler
- Hauptermittler: Hiroko H Dodge, PhD, Massachusetts General Hospital
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Geschätzt)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- 2026P000461
Plan für individuelle Teilnehmerdaten (IPD)
Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?
Beschreibung des IPD-Plans
IPD-Sharing-Zeitrahmen
IPD-Sharing-Zugriffskriterien
Art der unterstützenden IPD-Freigabeinformationen
- ANALYTIC_CODE
Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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