CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 200 enrolled
Drug / intervention
Lumen Coached PST Intervention. +2 morebehavioral
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

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Search/NCT05603923
NCT05603923N/ACompleted

Study of a PST-Trained Voice-Enabled Artificial Intelligence Counselor(SPEAC) for Adults With Emotional Distress (Phase 2)

University of Illinois at Chicago·interventional·Posted Nov 3, 2022·Updated Jan 21, 2026

In Brief

A clinical study evaluating Lumen Coached PST Intervention., Human Coached PST Intervention., and 1 other intervention for Depression and Anxiety. Completed, enrolled 200 participants across 2 sites.

Detailed Summary

Approximately 200 Participants with mild-to-moderate, untreated depression and/or anxiety will be randomly assigned (by chance, like flipping a coin) to 1 of 3 study groups: Lumen Coached Problem-Solving Treatment (PST) (n=100), Human Coached PST (n=50), and optional (delayed) Lumen Coached PST as waitlist control (n=50) to improve emotional health. All participants will complete assessments at baseline and at 18 weeks post randomization. Depending on the group assignment the PST program will be delivered by Lumen, a virtual voice-based coach on a study iPad, or by a human coach in person for the first session and then via videoconference or phone for the remaining 7 sessions. Participants assigned to the waitlist control group can receive the Lumen coached PST on a study iPad after completing their 18-week follow-up assessment. Participants will receive 8 coaching sessions to learn problem-solving skills and work on unresolved problems in daily living that may be interfering with their emotional well-being and contributing to depression and anxiety symptoms.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsDepression, Anxiety
CountriesUnited States

Timeline

N/ACompletedFinished
2023202420252026
First PostedNov 3, 2022
Enrollment StartJan 23, 2023
Primary CompletionApr 15, 2025
TodayJul 2, 2026
Enrollment to primary: 2.2 yearsPosted 3.7 years ago

Interventions

Lumen Coached PST Intervention.behavioral

Lumen Intervention Orientation. Participants in the Lumen intervention arm attend a Lumen orientation visit (60 minutes) during which they will be given a Lumen intervention tutorial and receive a study iPad, configured to limit access to only the Lumen intervention enabled on the device. Before leaving, participants are scheduled for the first PST session with Coach Lumen. At the end of each PST session, participants are prompted to schedule their next session with Coach Lumen. They receive automated reminder notifications 1 day prior to their next session, on the session day, and have the opportunity to make up missed sessions. As needed, Lumen intervention orientations can be done remotely.

Human Coached PST Intervention.behavioral

Participants in the human coached PST arm will serve as active treatment controls given the demonstrated efficacy of human coached PST in depression and anxiety. They will complete 8 PST sessions with a human coach; first session in-person and remaining sessions via videoconferencing (i.e., Zoom preferred; with phone calls allowed) on the same 4 weekly and then 4 biweekly schedule as that for Lumen participants. Participants will receive a study iPad to use for their PST sessions via zoom. Participants also complete the PHQ-9 and GAD-7 during each session. Participants will receive a certificate of completion.

Optional (delayed) Lumen Coached PST (Waitlist control).behavioral

Waitlist control participants will only complete assessments during the 18-week trial period. At the end of their 18-week assessment, they will have the option to complete 8 PST sessions on their assigned iPads.