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CompletedNCT05762939Updated Mar 10, 2023

Chatbot Intervention for Anxiety and Depressive Symptoms in Young Adults

An interventional study of Chatbot and Control (book) in Anxiety and Depression, sponsored by University of Social Sciences and Humanities, Warsaw. Completed at 1 site in Poland. Open to participants aged 18 Years to 35 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-03-10.

Sponsored by University of Social Sciences and Humanities, Warsaw · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 9 months after the study started (first participant enrolled May 2022, registered Feb 2023).
Phase
Not applicable
Study type
Interventional
Enrollment
81
Allocation
Randomized
Ages
18 Years to 35 Years
Sex
All
01

Study summary

This clinical trial compares the effects of using an artificial intelligence based therapy chatbot and a self-help book to lower anxiety and depressive symptoms. The therapy chatbot (named Fido) is an application delivering support for mental health via a conversation-like interface in a highly inflected language (Polish).

The team will recruit young people (aged 18-35) who currently struggle with anxiety and/or depression. The participants will use the chatbot or self-help materials for two weeks. Then, the researchers will check if using the chatbot or the book improved several aspects of mental health and the quality of life. Moreover, they will compare the groups for any differences in outcomes.

Read the detailed description

The primary objective of this randomized controlled trial is to evaluate the effectiveness of a chatbot-delivered cognitive-behavioural intervention on anxiety and depressive symptoms (and their correlates, such as quality of life or feelings of loneliness) in a subclinical sample of about 80 participants.

The intervention results are compared to an active control intervention with popular self-help materials. Secondary objectives include the assessment and analysis of the human-chatbot therapeutic bond and general user experience.

The study uses a 2 x 3 mixed factorial design with two intervention arms (Fido chatbot vs self-help book) and three time points (T1: just prior to the intervention, T2: immediately after the intervention, T3: at a follow-up one month after the previous measurement). The primary intervention lasts two weeks.

All primary and secondary outcomes are assessed using self-administered online questionnaires in Polish. Each primary outcome measure is analyzed using a 2 (arms) x 2 (time points) ANOVA models with T1-T2 comparisons to test for the intervention effect and T1-T3 comparisons to check the stability of the intervention effect. Additional analyzes utilize standard NHST calculations and procedures (such as t-tests and correlation coefficients) alongside the conventional ⍺=.05 level.

Similarly to the previous research in this area, no blinding is used. Participants are informed about different conditions, but the research hypotheses are masked.

02

Conditions studied

  • Anxiety
  • Depression

Keywords

  • anxiety
  • depression
  • quality of life
  • loneliness
03

In context

Anxiety Disorders

5,065 studies on the registry are indexed under Anxiety Disorders; 1,408 are open to participants now.

This study's enrollment of 81 is close to the median of 80 across 4,339 interventional studies indexed under Anxiety Disorders.

Browse Anxiety Disorders studies →

Lead sponsor

University of Social Sciences and Humanities, Warsaw is the lead sponsor of 25 studies on the registry; 10 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 35 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • declaring at least mild depressive or anxiety symptoms by achieving a total score of at least 16 points on Center for Epidemiologic Studies Depression Scale Revised or at least 50 points on Penn State Worry Questionnaire
  • being able to visit the study site in Poznań (Poland) to complete all measurements

Exclusion criteria

Exclusion Criteria:

  • undergoing psychotherapy, coaching or psychopharmacological treatment
  • being diagnosed with a neurological disorder
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
81 participants (actual)

Study arms

  • Experimental
    Chatbot

    Intervention using a pre-release version of Fido (https://fido.aid.pl), Polish AI-based therapy chatbot.

    Behavioral: Chatbot

  • Active comparator
    Control (book)

    Intervention using self-help materials - chapters from a popular book on cognitive therapy, including worksheets.

    Behavioral: Control (book)

Interventions

  • BehavioralChatbot

    Participants in this condition were asked to use Fido, a Polish therapy chatbot, for two weeks. No minimal requirements of usage time were enforced, but participants had to fill in five engagement check surveys during the intervention period. Each survey had to be completed in less than 24 hours.

  • BehavioralControl (book)

    Participants in this condition were told to read selected chapters from a self-help book during the two-week intervention period. No minimal requirements of usage time were enforced, but participants had to fill in five engagement check surveys during the intervention period. Each survey had to be completed in less than 24 hours.

06

What researchers measure

Primary outcomes

  1. CESD-R Score Change

    The total sum score of the Polish version of the Center for Epidemiologic Studies Depression Scale Revised.

    Time frame: Time point 1: Just prior to the intervention. Time point 2: Immediately after two weeks of the intervention. Time point 3: One month after the previous measurement (time point 2).

  2. PHQ-9 Score Change

    The total sum score of the Polish version of the Patient Health Questionnaire-9.

    Time frame: Time point 1: Just prior to the intervention. Time point 2: Immediately after two weeks of the intervention. Time point 3: One month after the previous measurement (time point 2).

  3. PSWQ Score Change

    The total sum score of the Polish version of the Penn State Worry Questionnaire.

    Time frame: Time point 1: Just prior to the intervention. Time point 2: Immediately after two weeks of the intervention. Time point 3: One month after the previous measurement (time point 2).

  4. SWLS Score Change

    The total sum score of the Polish version of the Satisfaction With Life Scale.

    Time frame: Time point 1: Just prior to the intervention. Time point 2: Immediately after two weeks of the intervention. Time point 3: One month after the previous measurement (time point 2).

  5. PANAS Score Change

    The total sum scores of the Polish version of the Positive and Negative Affect Scale in two subscales (Positive and Negative Affect, separately).

    Time frame: Time point 1: Just prior to the intervention. Time point 2: Immediately after two weeks of the intervention. Time point 3: One month after the previous measurement (time point 2).

  6. STAI Score Change

    The total sum score of the Polish version of the State-Trait Anxiety Inventory.

    Time frame: Time point 1: Just prior to the intervention. Time point 2: Immediately after two weeks of the intervention. Time point 3: One month after the previous measurement (time point 2).

  7. R-UCLA Score Change

    The total sum score of the Polish version of the Revised UCLA Loneliness Scale.

    Time frame: Time point 1: Just prior to the intervention. Time point 2: Immediately after two weeks of the intervention. Time point 3: One month after the previous measurement (time point 2).

Other outcomes

  1. ACC Score

    The total sum score of the Polish version of the Acceptability E-scale. Used exclusively in the chatbot arm.

    Time frame: Time point 2: Immediately after two weeks of the intervention.

  2. HCI Scores

    The total sum scores of six subscales from the Human-Computer Interaction Scale. Used exclusively in the chatbot arm.

    Time frame: Time point 2: Immediately after two weeks of the intervention.

  3. LP Score

    Individual item scores from Language Pragmaticality Scale. Used exclusively in the chatbot arm.

    Time frame: Time point 2: Immediately after two weeks of the intervention.

  4. WAI-SR Score

    The total sum score of the Polish version of the Working Alliance Inventory Short Revised. The Polish translation of this measure was developed by the research team. Used exclusively in the chatbot arm.

    Time frame: Time point 2: Immediately after two weeks of the intervention.

  5. Psychoeducation Test Score

    The total sum score of the 12-item test which assessed the participants' acquired knowledge of psychoeducation topics.

    Time frame: Time point 2: Immediately after two weeks of the intervention.

07

Study locations

1 site
  • Laboratory of Affective Neuroscience in Poznań, SWPS University of Social Sciences and Humanities
    Poznan, Greater Poland Voivodeship 61-719, Poland
08

References and documents

Publications

  • Tariman JD, Berry DL, Halpenny B, Wolpin S, Schepp K. Validation and testing of the Acceptability E-scale for web-based patient-reported outcomes in cancer care. Appl Nurs Res. 2011 Feb;24(1):53-8. doi: 10.1016/j.apnr.2009.04.003. Epub 2009 Sep 18. PubMed 20974066 ↗
  • Russell D, Peplau LA, Cutrona CE. The revised UCLA Loneliness Scale: concurrent and discriminant validity evidence. J Pers Soc Psychol. 1980 Sep;39(3):472-80. doi: 10.1037//0022-3514.39.3.472. PubMed 7431205 ↗
  • Munder T, Wilmers F, Leonhart R, Linster HW, Barth J. Working Alliance Inventory-Short Revised (WAI-SR): psychometric properties in outpatients and inpatients. Clin Psychol Psychother. 2010 May-Jun;17(3):231-9. doi: 10.1002/cpp.658. PubMed 20013760 ↗
  • Moshe I, Terhorst Y, Philippi P, Domhardt M, Cuijpers P, Cristea I, Pulkki-Raback L, Baumeister H, Sander LB. Digital interventions for the treatment of depression: A meta-analytic review. Psychol Bull. 2021 Aug;147(8):749-786. doi: 10.1037/bul0000334. PubMed 34898233 ↗
  • Kroenke K, Spitzer RL, Williams JB. The PHQ-9: validity of a brief depression severity measure. J Gen Intern Med. 2001 Sep;16(9):606-13. doi: 10.1046/j.1525-1497.2001.016009606.x. PubMed 11556941 ↗
  • Koziara K. Assessment of depressiveness in population. Psychometric evaluation of the Polish version of the CESD-R. Psychiatr Pol. 2016 Dec 23;50(6):1109-1117. doi: 10.12740/PP/61614. English, Polish. PubMed 28211550 ↗
  • Fitzpatrick KK, Darcy A, Vierhile M. Delivering Cognitive Behavior Therapy to Young Adults With Symptoms of Depression and Anxiety Using a Fully Automated Conversational Agent (Woebot): A Randomized Controlled Trial. JMIR Ment Health. 2017 Jun 6;4(2):e19. doi: 10.2196/mental.7785. PubMed 28588005 ↗
  • Crawford JR, Henry JD. The positive and negative affect schedule (PANAS): construct validity, measurement properties and normative data in a large non-clinical sample. Br J Clin Psychol. 2004 Sep;43(Pt 3):245-65. doi: 10.1348/0144665031752934. PubMed 15333231 ↗
  • Meyer TJ, Miller ML, Metzger RL, Borkovec TD. Development and validation of the Penn State Worry Questionnaire. Behav Res Ther. 1990;28(6):487-95. doi: 10.1016/0005-7967(90)90135-6. PubMed 2076086 ↗
  • Kusier AO, Folker AP. The Satisfaction with Life Scale: Philosophical Foundation and Practical Limitations. Health Care Anal. 2021 Mar;29(1):21-38. doi: 10.1007/s10728-020-00420-y. Epub 2021 Jan 2. PubMed 33386535 ↗
  • Julian LJ. Measures of anxiety: State-Trait Anxiety Inventory (STAI), Beck Anxiety Inventory (BAI), and Hospital Anxiety and Depression Scale-Anxiety (HADS-A). Arthritis Care Res (Hoboken). 2011 Nov;63 Suppl 11(0 11):S467-72. doi: 10.1002/acr.20561. No abstract available. PubMed 22588767 ↗
  • Karkosz S, Szymanski R, Sanna K, Michalowski J. Effectiveness of a Web-based and Mobile Therapy Chatbot on Anxiety and Depressive Symptoms in Subclinical Young Adults: Randomized Controlled Trial. JMIR Form Res. 2024 Mar 20;8:e47960. doi: 10.2196/47960. PubMed 38506892 ↗

Individual participant data

Plan to share: Yes — Anonymized data from all enrolled participants will be publicly available in the project's OSF repository.

Supporting information: Informed consent form, Analytic code

Time frame: IPD and supporting documents will be available as soon as research results are published.

Access criteria: IPD and supporting documents will be publicly available.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 10, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05762939
Lead sponsor
University of Social Sciences and Humanities, Warsaw
Collaborators
Ministry of Science and Higher Education, Poland
Responsible party
Sponsor
First posted
Mar 10, 2023
Start date
May 3, 2022
Primary completion
Aug 2, 2022
Completion
Aug 2, 2022
Last update
Mar 10, 2023

Study contacts

Jarosław Michałowski, PhD
principal investigator · SWPS University of Social Sciences and Humanities, Warsaw, Poland

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Feb 2023. You cannot join it, but the record below documents what was studied.

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