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Spider FearOMEXNCT06182709

Feasibility of an Online Modeled Exposure in Spider Fearful Individuals

A study testing online psychoeducation video + modeled exposure, live psychoeducation video + modeled exposure and group exposure in people with Spider Fear and Arachnophobia, run by Philipps University Marburg at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The effectiveness of an optimized group exposure treatment is investigated in spider-fearful individuals. Participants will undergo an optimized standardized exposure treatment. After receiving information about the treatment and the phobic stimulus (spider) through a psychoeducation video, participants will observe… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Spider Fear, Arachnophobia
What is being tested?
online psychoeducation video + modeled exposure, live psychoeducation video + modeled exposure and group exposure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
78 participants
Where
1 siteGermany
Study dates
11 Dec 2023to 5 Sep 2025
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Elevated score on Spider Phobia Questionnaire (SPQ) >= 17

Who cannot join

  • Severe allergies to bees/spiders/insects
  • Current psychiatric/psychotherapeutic treatment
  • Past psychotherapeutic/psychiatric treatment due to anxiety problems
  • Current or past psychotic symptoms
  • Current suicidal intent
  • Experience with exposure-based treatment
  • Current psychopharmacological medication
  • Severe respiratory, neurological or cardiovascular diseases

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Philipps-University Marburg

    Marburg, Hesse, 35037

Other trials in Germany

About this study

Official title: Group Exposure Treatment: Feasibility of an Online Modeled Exposure in Spider Fearful Individuals

The effectiveness of an optimized group exposure treatment is investigated in spider-fearful individuals. Participants will undergo an optimized standardized exposure treatment. After receiving information about the treatment and the phobic stimulus (spider) through a psychoeducation video, participants will observe an exposure treatment of another fearful person, either live or by watching a movie of an exposure treatment online. Subsequently, participants will undergo a live in vivo exposure treatment conducted in a group setting. The effectiveness of the treatment is measured by symptom improvement according to online behavioral avoidance tests and subjective ratings immediately after training and one week later.

Read the detailed description

The treatment of various anxiety disorders often involves exposure therapy. However, a considerable number of patients do not benefit or experience a resurgence of anxiety following successful treatment. Vicarious safety learning (i.e., modeled exposure) presents a promising avenue to improve therapeutic outcome. Previous evidence indicates that vicarious safety learning can diminish previously acquired fear associations, thereby reducing behavioral avoidance. While single-session interventions have implemented modeled exposure, specific mechanisms of observational learning have not been extensively investigated. Due to high dropout rates in specific phobias, modeled exposure could be utilized as an additional treatment method, potentially yielding better outcomes trough additional learning experience.

This study aims to investigate the applicability of observational learning and its sustainability through mental retrieval cues. Specifically, the study is going to assess the feasibility of modeled exposure conveyed either live or online via video, offering a practical approach within a stepped-care framework. The modeled exposure treatment will be followed by a group exposure treatment to assess the influence of modeled exposure in spider-fearful individuals.

Physically healthy spider-fearful individuals will be either treated with an online or live modeled standardized exposure followed by a group exposure treatment. Half of the participants will receive a mental retrieval cue before the group exposure treatment one day after the modeled exposure treatment. The research aims to determine if long-term reduction of spider fear is achievable through online modeled exposure via video compared to in-person modeled exposure.

Being tested
online psychoeducation video + modeled exposure, live psychoeducation video + modeled exposure, group exposure, mental retrieval cue
Medical subject headings
Arachnophobia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • online psychoeducation video + modeled exposureBehavioural

    Participants will watch a short psychoeducation video online. This will be followed by a modeled exposure online. In this modeled exposure participants watch a film of an exposure treatment (about 45min) conducted with one participant and the therapist. The exposure training consists of five exposure steps (step 1: describing the spider, step 2: catching the spider with a glass, step 3: describing the spider, step 4: touching the spider with the dominant index finger, step 5: letting the spider walk on the participant hands; the following steps have to be repeated up to four times: 2,4,5).

  • live psychoeducation video + modeled exposureBehavioural

    Participants will watch a short psychoeducation video. This will be followed by a live modeled exposure. In this modeled exposure participants watch an exposure treatment (about 45min) conducted live with one participant and the therapist. The exposure training consists of five exposure steps (step 1: describing the spider, step 2: catching the spider with a glass, step 3: describing the spider, step 4: touching the spider with the dominant index finger, step 5: letting the spider walk on the participant hands; the following steps have to be repeated up to four times: 2,4,5).

  • group exposureBehavioural

    Exposure training in the group is conducted live (1 spider per participant, one therapist and co-trainers). In this group exposure participants complete exposure training (about 45 min) with five exposure steps (step 1: describing the spider, step 2: catching the spider with a glass, step 3: describing the spider, step 4: touching the spider with the dominant index finger, step 5: letting the spider walk on the participant hands; the following steps have to be repeated up to three times: 2,4,5).

  • mental retrieval cueBehavioural

    Before the group exposure, participants are asked to remember the modeled exposure they had observed the day before. Therefore, the participants are asked to recall the location where they have been during the modeled exposure and the reaction of the patient during the exposure (e.g., fear decline).

Study groups in NCT06182709
Study groupRoleWhat they receive
online modeled exposure + mental retrieval cue group exposureExperimentalonline modeled exposure training followed by group exposure training, including mental retrieval cue with five standardized exposure steps
Receives: Behavioral: online psychoeducation video + modeled exposure; Behavioral: group exposure; Behavioral: mental retrieval cue
live modeled exposure + mental retrieval cue group exposureActive comparatorlive modeled exposure training followed by group exposure training, including mental retrieval cue with five standardized exposure steps
Receives: Behavioral: live psychoeducation video + modeled exposure; Behavioral: group exposure; Behavioral: mental retrieval cue
online modeled exposure + standardized group exposureActive comparatoronline modeled exposure training followed by group exposure training with five standardized exposure steps
Receives: Behavioral: online psychoeducation video + modeled exposure; Behavioral: group exposure
live modeled exposure + standardized group exposureActive comparatorlive modeled exposure training followed by group exposure training with five standardized exposure steps
Receives: Behavioral: live psychoeducation video + modeled exposure; Behavioral: group exposure

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Spider Phobia Questionnaire (SPQ)

    31-Item true/false questionnaire assessing symptoms of arachnophobia. Scores range from 0 to 31, with greater scores representing greater subjective fear of spiders, where lower scores reflect low subjective fear of spiders

    Measured: Change from baseline to immediately post treatment 1 (after modeled exposure), immediately post treatment 2 (group exposure) and follow-up (7 days after group exposure - post treatment 2)

  2. Change in avoidance behavior (online virtual Behavioral Approach Task, vBATon)

    Scores range from 0 ("participant refuses entering the room with the spider") to 12 ("participant holds the spider for at least 20 seconds")

    Measured: Change from baseline to immediately post treatment 1 (after modeled exposure), immediately post treatment 2 (group exposure) and follow-up (7 days after group exposure - post treatment 2)

  3. Change in spider fear: Spider Anxiety Questionnaire (FSQ/SAF)

    14-item questionnaire on a 7-point Likert-Scale (0 = "I don´t agree at all"; 6 = "I completely agree") to assess symptoms of arachnophobia. Total score can range from 0 to 98 Greater scores representing worse symptom severity of arachnophobia

    Measured: Change from baseline to immediately post treatment 1 (after modeled exposure), immediately post treatment 2 (group exposure) and follow-up (7 days after group exposure - post treatment 2)

Secondary outcomes (3)
  1. Change in spider phobia belief questionnaire (SBQ)

    Assessment of spider phobia dysfunctional beliefs; 48 items on a scale from 0% ("no approval") to 100% ("full approval"); higher scores indicate more dysfunctional beliefs about the danger of spiders and own coping abilities regarding spiders

    Measured: Change from baseline to immediately post treatment 1 (after modeled exposure), immediately post treatment 2 (group exposure) and follow-up (7 days after group exposure -- post treatment 2)

  2. Change in Spider Anxiety Screening (SAS)

    Assessment of the four criteria for specific phobia (DSM-IV) with 4 items on a scale from 0 ("does not apply at all") to 6 ("fully applies"), Total score range: 0 to 24, higher scores indicating worse severity of symptoms of arachnophobia

    Measured: Change from baseline to immediately post treatment 1 (after modeled exposure), immediately post treatment 2 (group exposure) and follow-up (7 days after group exposure- post treatment 2)

  3. Global success rating (GSR)

    Self-report measure of subjective state changes on a 7-likert scale from 1 ("much worse") to 7 ("much better")

    Measured: Change from immediately post treatment 1 (after modeled exposure) to immediately post-treatment 2 (after group exposure) and follow-up (7 days after group exposure- post treatment 2)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Dec 2023
  2. Study start11 Dec 2023
  3. Primary completion5 Sep 2025
  4. Study completion5 Sep 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
78 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06182709
Sponsor's protocol ID
OMEX_SPIDER
Acronym
OMEX
Status last verified
Sep 2025
First submitted
8 Dec 2023
Last updated
2 Oct 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Craske MG, Treanor M, Conway CC, Zbozinek T, Vervliet B. Maximizing exposure therapy: an inhibitory learning approach. Behav Res Ther. 2014 Jul;58:10-23. doi: 10.1016/j.brat.2014.04.006. Epub 2014 May 9.

    PubMed 24864005
  • Golkar A, Selbing I, Flygare O, Ohman A, Olsson A. Other people as means to a safe end: vicarious extinction blocks the return of learned fear. Psychol Sci. 2013 Nov 1;24(11):2182-90. doi: 10.1177/0956797613489890. Epub 2013 Sep 10.

    PubMed 24022651
  • Ost LG, Ferebee I, Furmark T. One-session group therapy of spider phobia: direct versus indirect treatments. Behav Res Ther. 1997 Aug;35(8):721-32. doi: 10.1016/s0005-7967(97)00028-4.

    PubMed 9256515
  • Mystkowski JL, Craske MG, Echiverri AM, Labus JS. Mental reinstatement of context and return of fear in spider-fearful participants. Behav Ther. 2006 Mar;37(1):49-60. doi: 10.1016/j.beth.2005.04.001. Epub 2006 Feb 24.

    PubMed 16942960
  • Olsson A, Phelps EA. Social learning of fear. Nat Neurosci. 2007 Sep;10(9):1095-102. doi: 10.1038/nn1968.

    PubMed 17726475
  • Wannemueller A, Appelbaum D, Kuppers M, Matten A, Teismann T, Adolph D, Margraf J. Large Group Exposure Treatment: a Feasibility Study in Highly Spider Fearful Individuals. Front Psychol. 2016 Aug 9;7:1183. doi: 10.3389/fpsyg.2016.01183. eCollection 2016.

    PubMed 27555830

Questions about this trial

What is this clinical trial studying?

A study testing online psychoeducation video + modeled exposure, live psychoeducation video + modeled exposure and group exposure in people with Spider Fear and Arachnophobia, run by Philipps University Marburg at 1 site in Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Oct 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Spider Phobia Questionnaire (SPQ) (time frame: Change from baseline to immediately post treatment 1 (after modeled exposure), immediately post treatment 2 (group exposure) and follow-up (7 days after group exposure - post treatment 2)). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06182709, which also lists 6 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Oct 2025.

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