NCT05687162

Brief Summary

This project includes three studies that explore the effectiveness of brief internet interventions for mental health and loneliness. Study 1: The goal of this clinical trial is to examine if a brief online single-session intervention (SSI) adapted from an evidence-based internet cognitive behavioral therapy can reduce feelings of loneliness in people aged 16 and older who struggle with loneliness. The main question it aims to answer is if a brief SSI is sufficient to meaningfully reduce loneliness compared to an active control. Researchers will test these questions by comparing change in loneliness after 8 weeks between participants randomly assigned to either 1) a 30-minute online SSI for loneliness or 2) a 3-session online intervention for loneliness or 3) an active control SSI. Study 2: The goal of this clinical trial is to examine if an SSI for psychological distress that uses popular online content as its primary form of intervention content can reduce feelings of psychological distress in people aged 16 and older who struggle with psychological distress. The main questions it aims to answer are 1) if curated popular online content can be more effective in supporting people struggling with psychological distress than researcher-created content and 2) if curated popular online content can be more effective in supporting people struggling with psychological distress than un-curated self-selected popular online content. Researchers will test these questions by comparing change in distress after 8 weeks between participants randomly assigned to either 1) 25-minute popular online content-based SSI for distress or 2) an effective 25-minute online SSI for distress with evidence-based researcher-created content or 3) online help-seeking as usual. Study 3: The goal of this clinical trial is to examine if an SSI for loneliness that uses popular online content as its primary form of intervention content can reduce feelings of loneliness in people aged 16 and older who struggle with loneliness. The main questions it aims to answer are 1) if curated popular online content can be more effective in supporting people struggling with loneliness than researcher-created content, 2) if curated popular online content can be more effective in supporting people struggling with psychological distress than an active control, and 3) replicating the comparison in study 1, if a brief SSI is sufficient to meaningfully reduce loneliness compared to an active control. The study will test these questions by comparing change in loneliness after 8 weeks between participants randomly assigned to either 1) a 25-minute popular online content-based SSI for loneliness or 2) a 25-minute online SSI for loneliness with evidence-based researcher-created content or 3) an active control SSI. Study 4: This experiment compared the loneliness SSI from study 1 to a version of it that lasted about half as long. It used a two-group repeated-measures experimental design, examining between-subjects differences in loneliness between baseline and eight-week follow-up between conditions.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
4,370

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Dec 2022

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 29, 2022

Completed
5 days until next milestone

Study Start

First participant enrolled

December 4, 2022

Completed
2 months until next milestone

First Posted

Study publicly available on registry

January 18, 2023

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 6, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 6, 2023

Completed
Last Updated

July 22, 2024

Status Verified

July 1, 2024

Enrollment Period

9 months

First QC Date

November 29, 2022

Last Update Submit

July 18, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in UCLA Loneliness Scale Version 3 at 8 weeks

    A 20-item measure of trait loneliness. Range 20-80 with higher scores indicated more severe loneliness. Included in studies 1, 3, and 4

    Baseline, 8-week follow-up

Secondary Outcomes (19)

  • Change in UCLA Loneliness Scale Version 3 at 4 weeks

    Baseline, 4-week follow-up

  • Change in Depression Anxiety and Stress Scale - 9-item total score at 8 weeks

    Baseline, 8-week follow-up

  • Change in Depression Anxiety and Stress Scale - 9-item total score at 4 weeks

    Baseline, 4-week follow-up

  • Change in 3-item Mini Social Phobia Inventory at 8 weeks

    Baseline, 8-week follow-up

  • Change in 3-item Mini Social Phobia Inventory at 4 weeks

    Baseline, 4-week follow-up

  • +14 more secondary outcomes

Study Arms (11)

(Study 1) 3-week Loneliness Program

ACTIVE COMPARATOR

The second and third sessions are completed in the second and third week, respectively, after beginning the study.

Behavioral: Overcoming Loneliness three-week intervention

(Study 1) Single-session loneliness program

EXPERIMENTAL
Behavioral: Overcoming Loneliness single-session intervention

(Study 1) Single-session active control program

ACTIVE COMPARATOR
Behavioral: Single-session "Sharing Feelings" program

(Study 2) Popular online content-based single-session intervention for distress

EXPERIMENTAL
Behavioral: The Blu Surfer program: a popular online content-based intervention for psychological distress

(Study 2) Researcher-created single-session intervention for distress

ACTIVE COMPARATOR
Behavioral: The Action Brings Change (ABC) Program (TEAM Lab version)

(Study 2) Online help-seeking as usual

ACTIVE COMPARATOR
Behavioral: Online help-seeking as usual

(Study 3) Popular online content-based single-session intervention for loneliness

EXPERIMENTAL
Behavioral: The Lonely Blu Surfer program: a popular online content-based intervention for loneliness

(Study 3) Researcher-created single-session intervention for loneliness

ACTIVE COMPARATOR
Behavioral: Overcoming Loneliness single-session intervention

(Study 3) Single-session active control program

ACTIVE COMPARATOR
Behavioral: Single-session "Sharing Feelings" program

(Study 4) 23-minute loneliness program

ACTIVE COMPARATOR
Behavioral: Overcoming Loneliness single-session intervention

(Study 4) 8-minute loneliness program

EXPERIMENTAL
Behavioral: Overcoming loneliness SSI 8-minute version

Interventions

A self-guided online loneliness intervention with three 10-20 minute sessions. The intervention content draws heavily from Internet Cognitive Behavioral Therapy for Loneliness and follows the form of single-session mental health interventions.

(Study 1) 3-week Loneliness Program

The Overcoming Loneliness Three-Week Intervention condensed into a single-session intervention lasting 20-30 minutes.

(Study 1) Single-session loneliness program(Study 3) Researcher-created single-session intervention for loneliness(Study 4) 23-minute loneliness program

A self-guided online supportive therapy intervention with a single 20-30 minute session intended to encourage users to share feelings with close others. Slightly modified from the "Sharing Feelings" intervention

(Study 1) Single-session active control program(Study 3) Single-session active control program

The Blu Surfer Program is a 25-minute SSI the research team developed centered on popular online content relevant to mental health. In the SSI, the user is first asked to select the kinds of support they would like to view. Next, the user is asked to explore a library of annotated popular online content (filtered by their desired kinds of content) and to select the content they find personally valuable. Finally, the SSI provides the user an annotated list of the content they selected. Users can keep this list to draw from, build on, or share later on as they wish.

(Study 2) Popular online content-based single-session intervention for distress

The ABC project is a 20-30-minute SSI for teens based on behavioral activation. It was found to be efficacious for reducing depression, anxiety, hopelessness, and self-hate and increasing perceived control and agency in youth (link to SSI: https://osf.io/ch2tg/, license: http://creativecommons.org/licenses/by-nc-sa/4.0/). The researchers modified the phrasing in the intervention to make it more relevant to both teens and adults, as the original was designed for only teens.

(Study 2) Researcher-created single-session intervention for distress

This intervention, created by the present research team, aims to emulate how one might find support on their own using the internet. In this condition, participants are asked to browse the internet for 25 minutes to find popular online content relevant to their personal struggles and create an annotated list of links to the content they find useful. The intervention is similar to a "self-study" condition, which found self-study and a video intervention equally increased mental health knowledge. The survey platform provides text entry boxes to help each participant create their guide and then provides a text version of their guide for them to keep.

(Study 2) Online help-seeking as usual

The Lonely Blu Surfer Program is a 25-minute SSI the research team developed centered on popular online content relevant to loneliness. In the SSI, the user is first asked to select the kinds of support they would like to view. Next, the user is asked to explore a library of annotated popular online content (filtered by their desired kinds of content) and to select the content they find personally valuable. Finally, the SSI provides the user an annotated list of the content they selected. Users can keep this list to draw from, build on, or share later on as they wish.

(Study 3) Popular online content-based single-session intervention for loneliness

A shortened version of an online self-guided intervention based on principles of CBT for loneliness. The research team created this intervention by cutting lengthy didactic material and exercises from the 23-minute version, while maintaining its core concepts.

(Study 4) 8-minute loneliness program

Eligibility Criteria

Age16 Years+
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Be fluent in English
  • Be 16 years old + (participants in studies 2-4 recruited on CloudResearch Connect had to be at least 18)
  • Have internet access and a computer, smartphone, or tablet
  • To be compensated for participation and be included in the main analysis, participants in studies 1 and 2 must meet criteria for "struggling with loneliness" (ie, a score on the 3-item loneliness screen of at least 6, and indicating that one's loneliness is causing one distress). Otherwise, participants can still participate in the study on a volunteer basis.
  • To be compensated for participation and be included in the main analysis, participants in study 3 must meet criteria for "struggling with distress" (ie, a score on either the depression or anxiety subscale greater than or equal to 3 (range 0-6), as these scores are suggestive of a depressive or anxiety disorder.

You may not qualify if:

  • Having completed the study in the past
  • Failing both of the attention checks in the baseline measures.
  • Spending less than 3 minutes completing the study introduction and baseline measures (ie, were very likely bots)
  • Indicating, at the end of the study, that one did not complete the study seriously and that one's data should not be included in analyses.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Online (based at UC Irvine)

Irvine, California, 92697, United States

Location

Related Publications (9)

  • Cacioppo JT, Cacioppo S. The growing problem of loneliness. Lancet. 2018 Feb 3;391(10119):426. doi: 10.1016/S0140-6736(18)30142-9. No abstract available.

    PMID: 29407030BACKGROUND
  • Hickin N, Kall A, Shafran R, Sutcliffe S, Manzotti G, Langan D. The effectiveness of psychological interventions for loneliness: A systematic review and meta-analysis. Clin Psychol Rev. 2021 Aug;88:102066. doi: 10.1016/j.cpr.2021.102066. Epub 2021 Jul 18.

    PMID: 34339939BACKGROUND
  • Masi CM, Chen HY, Hawkley LC, Cacioppo JT. A meta-analysis of interventions to reduce loneliness. Pers Soc Psychol Rev. 2011 Aug;15(3):219-66. doi: 10.1177/1088868310377394. Epub 2010 Aug 17.

    PMID: 20716644BACKGROUND
  • Kall A, Backlund U, Shafran R, Andersson G. Lonesome no more? A two-year follow-up of internet-administered cognitive behavioral therapy for loneliness. Internet Interv. 2020 Jan 17;19:100301. doi: 10.1016/j.invent.2019.100301. eCollection 2020 Mar.

    PMID: 32071885BACKGROUND
  • Yamaguchi S, Ojio Y, Ando S, Bernick P, Ohta K, Watanabe KI, Thornicroft G, Shiozawa T, Koike S. Long-term effects of filmed social contact or internet-based self-study on mental health-related stigma: a 2-year follow-up of a randomised controlled trial. Soc Psychiatry Psychiatr Epidemiol. 2019 Jan;54(1):33-42. doi: 10.1007/s00127-018-1609-8. Epub 2018 Oct 12.

    PMID: 30315333BACKGROUND
  • Rizvi SL, Finkelstein J, Wacha-Montes A, Yeager AL, Ruork AK, Yin Q, Kellerman J, Kim JS, Stern M, Oshin LA, Kleiman EM. Randomized clinical trial of a brief, scalable intervention for mental health sequelae in college students during the COVID-19 pandemic. Behav Res Ther. 2022 Feb;149:104015. doi: 10.1016/j.brat.2021.104015. Epub 2021 Dec 21.

    PMID: 34958980BACKGROUND
  • Murphy ST, Frank LB, Chatterjee JS, Baezconde-Garbanati L. Narrative versus Non-narrative: The Role of Identification, Transportation and Emotion in Reducing Health Disparities. J Commun. 2013 Feb;63(1):10.1111/jcom.12007. doi: 10.1111/jcom.12007.

    PMID: 24347679BACKGROUND
  • Kroenke K, Spitzer RL, Williams JB, Lowe B. An ultra-brief screening scale for anxiety and depression: the PHQ-4. Psychosomatics. 2009 Nov-Dec;50(6):613-21. doi: 10.1176/appi.psy.50.6.613.

    PMID: 19996233BACKGROUND
  • Kaveladze BT, Gastelum SF, Ngo DC, Delacruz P, Cohen KA, Kall A, Andersson G, Schleider JL, Schueller SM. A randomized controlled trial comparing brief online self-guided interventions for loneliness. J Consult Clin Psychol. 2025 Jan;93(1):54-63. doi: 10.1037/ccp0000908. Epub 2024 Sep 26.

MeSH Terms

Conditions

DepressionAnxiety Disorders

Interventions

Methodsabacavir

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehaviorMental Disorders

Intervention Hierarchy (Ancestors)

Investigative Techniques

Study Officials

  • Stephen M Schueller, Ph.D.

    University of California, Irvine

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
Participants will not be informed which condition they were assigned to or what the other conditions involve. The investigators will not interact with participants or see which condition they are in during the intervention.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: In each study, participants will be randomly assigned to complete one of three online programs, assessing DVs at baseline and 4 and 8 weeks later. Note that studies 1-3 have 3 arms, and study 4 has 2 arms, so in total 11 arms are included in this project.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

November 29, 2022

First Posted

January 18, 2023

Study Start

December 4, 2022

Primary Completion

September 6, 2023

Study Completion

September 6, 2023

Last Updated

July 22, 2024

Record last verified: 2024-07

Data Sharing

IPD Sharing
Will share

De-identified participant data will be shared, including all measures. Participants' responses to open text response questions within the program will not be shared for the sake of privacy.

Shared Documents
STUDY PROTOCOL, SAP, ICF, ANALYTIC CODE
Time Frame
The data will be available as soon as it is cleaned and de-identified and it will remain publicly available as long as possible.
Access Criteria
The data will be available to the public via an online dataset on the Open Science Framework (osf.io)

Locations