NCT05831657

Brief Summary

Child sexual exploitation and abuse is a large-scale global issue that has been drastically rising since the advent of the internet that has brought about communication technologies enabling new ways to sexually abuse children. Prevent It is a free, anonymous, internet-delivered, and clinician-guided, cognitive behavioral therapy (CBT) intervention for adults who are concerned about their urges to engage in child sexual exploitation or abuse behaviors. It was developed based on many years of clinical experience from working with this patient group, as well as results from several previous research projects in the area of child sexual abuse. Using a randomized controlled trial with waitlist control - a scientifically rigorous design - we will evaluate the effectiveness of the Swedish, German, and Portuguese versions of Prevent It 2.0 - an updated version of the initial Prevent It program. This evaluation is being funded by the European Commission and will consist of an international, multicentre, and academically initiated randomized controlled clinical trial for which those actively enrolled in Prevent It 2.0 will be compared to a waitlist control for each language version (Swedish, German, and Portuguese). Data will be collected across the three sites (Sweden, Germany, and Portugal), in their corresponding languages (Swedish, German, and Portuguese), over 18 months. All data will be collected through the Iterapi platform that will be housed in a server by members of the Swedish subgroup located at Linköping University (LiU), Sweden. PRIORITY will provide intervention to 420 participants who will be recruited via multiple channels (darknet, Clearnet, police referral). Participation in the program will take place on both Darknet and Clearnet. All contact with participants, the treatment evaluations, and termination of the contact, is conducted via the online treatment platform Iterapi. The Iterapi platform is designed specifically for clinical trials of internet-mediated CBT.

Trial Health

90
On Track

Trial Health Score

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

Enrollment
205

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2023

Typical duration for not_applicable

Geographic Reach
3 countries

3 active sites

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

January 31, 2023

Completed
15 days until next milestone

Study Start

First participant enrolled

February 15, 2023

Completed
2 months until next milestone

First Posted

Study publicly available on registry

April 26, 2023

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 15, 2024

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 14, 2025

Completed
Last Updated

March 5, 2025

Status Verified

October 1, 2024

Enrollment Period

1.8 years

First QC Date

January 31, 2023

Last Update Submit

March 3, 2025

Conditions

Keywords

Child sexual abusePedophilic disorderPreventive psychiatryInternet based interventionCognitive behavioral therapyWaitlist

Outcome Measures

Primary Outcomes (1)

  • Is Prevent It 2.0 effective in changing participants' urges to act on sexual behaviors involving children, as measured by the SSAS (Sexual Symptom Assessment Scale) across each language version?

    SSAS; scores for each item range from 0 to 4; total scores range from 0 to 48; higher scores indicate a worse outcome \[i.e., more sexual urges involving children\]

    At time of registration of the intervention, immediately before the intervention/pre-intervention, during the intervention up to 8 weeks, immediately after the intervention, and four weeks after the intervention

Secondary Outcomes (2)

  • Is Prevent It 2.0 effective in changing participants' sexual behaviors involving children, as measured by the Sexual Child Molestation Risk Assessment (the SChiMRA+) Part B across each language version?

    Immediately before the intervention/pre-intervention, during the intervention up to 8 weeks, immediately after the intervention, and four weeks after the intervention.]

  • Is Prevent It 2.0 effective in changing participants' likelihood of engaging in sexual behaviors involving children, as measured by the Sexual Child Molestation Risk Assessment (the SChiMRA +) Part A across each language version?

    Immediately before the intervention/pre-intervention, during the intervention up to 8 weeks, immediately after the intervention, and four weeks after the intervention.

Other Outcomes (22)

  • Is Prevent It 2.0 effective in changing participants' acute dynamic risk of engaging in sexual behaviors involving children as measured by the Acute-2007-SR, across each language version?

    During the intervention up to 8 weeks, and immediately after the intervention

  • Is Prevent It 2.0 effective in changing participants' sexual preoccupation, as measured by the Sexual Behavior Involving Minors Scale (SBIMS) - Part A across each language version?

    Immediately before the intervention/pre-intervention, immediately after the intervention, and four weeks after the intervention

  • Is Prevent It 2.0 effective in changing participants' sexual self-control, as measured by the Hypersexual Behavior Inventory (HBI-19) - control and consequences items across each language version?

    Immediately before the intervention/pre-intervention, immediately after the intervention, and four weeks after the intervention

  • +19 more other outcomes

Study Arms (6)

Prevent It 2.0 Swedish

EXPERIMENTAL

A free, anonymous, internet-delivered, clinician-guided, cognitive behavioral therapy (CBT) intervention delivered in Swedish.

Other: Prevent It 2.0

Waitlist Swedish

ACTIVE COMPARATOR

Waitlist Swedish Participants in the waitlist control will wait thirteen weeks before starting active treatment. While on the waitlist, participants will respond to questions about ongoing problematic sexual behavior in Swedish.

Other: Waitlist

Prevent It 2.0 German

EXPERIMENTAL

A free, anonymous, internet-delivered, clinician-guided, cognitive behavioral therapy (CBT) intervention delivered in German

Other: Prevent It 2.0

Waitlist German

ACTIVE COMPARATOR

Participants in the waitlist control will wait thirteen weeks before starting active treatment. While on the waitlist, participants will respond to questions about ongoing problematic sexual behavior in German

Other: Waitlist

Prevent It 2.0 Portuguese

EXPERIMENTAL

A free, anonymous, internet-delivered, clinician-guided, cognitive behavioral therapy (CBT) intervention delivered in Portuguese

Other: Prevent It 2.0

Waitlist Portuguese

ACTIVE COMPARATOR

Participants in the waitlist control will wait thirteen weeks before starting active treatment. While on the waitlist, participants will respond to questions about ongoing problematic sexual behavior in Portuguese

Other: Waitlist

Interventions

A free, anonymous, internet-delivered, therapist assisted, cognitive behavioral therapy (CBT) intervention

Prevent It 2.0 GermanPrevent It 2.0 PortuguesePrevent It 2.0 Swedish

Participants in the waitlist control will wait thirteen weeks before starting active treatment. While on the waitlist, participants will respond to questions about ongoing problematic sexual behavior.

Waitlist GermanWaitlist PortugueseWaitlist Swedish

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • years of age or older
  • Concerned about sexual urges regarding children
  • Informed consent to participate

You may not qualify if:

  • Participants with a severe psychiatric illness (such as high acute suicide risk or severe substance abuse)
  • Participants that are judged to have a limited understanding of the languages that the treatment is delivered in (German, Swedish, and Portuguese)
  • Lack serious intention to participate (assessed by the researcher/clinician during the intake interview, which lasts approximately one hour)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Universitaetsklinikum Hamburg-Eppendorf

Hamburg, Germany, 20246, Germany

Location

Universidade Do Porto

Porto, Praça de Gomes Teixeira, 4099-002, Portugal

Location

Karolinska Institutet

Stockholm, Stockholm County, 113 64, Sweden

Location

Related Publications (1)

  • Latth J, Landgren V, McMahan A, Sparre C, Eriksson J, Malki K, Soderquist E, Oberg KG, Rozental A, Andersson G, Kaldo V, Langstrom N, Rahm C. Effects of internet-delivered cognitive behavioral therapy on use of child sexual abuse material: A randomized placebo-controlled trial on the Darknet. Internet Interv. 2022 Nov 15;30:100590. doi: 10.1016/j.invent.2022.100590. eCollection 2022 Dec.

    PMID: 36573073BACKGROUND

MeSH Terms

Conditions

Pedophilia

Interventions

Waiting Lists

Condition Hierarchy (Ancestors)

Paraphilic DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Appointments and SchedulesOrganization and AdministrationHealth Services Administration

Study Officials

  • Peer Briken, MD

    Co-investigator, Universitaetsklinikum Hamburg-Eppendorf

    PRINCIPAL INVESTIGATOR
  • Joana Carvalho, PhD

    Co-investigator, Universidade Do Porto

    PRINCIPAL INVESTIGATOR
  • Michael Seto, PhD

    Co-investigator, The Royal Ottawa Health Care Group

    PRINCIPAL INVESTIGATOR
  • Elizabeth J Letourneau, PhD

    Co-investigator, Moore Center for the Prevention of Child Sexual Abuse

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: An academically initiated randomized controlled clinical trial where Prevent It 2.0 is compared with waitlist control across three language sites (i.e., Swedish, Portuguese, and German)
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD, PhD, Associate Professor

Study Record Dates

First Submitted

January 31, 2023

First Posted

April 26, 2023

Study Start

February 15, 2023

Primary Completion

November 15, 2024

Study Completion

January 14, 2025

Last Updated

March 5, 2025

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will share

Individual participant data that underlie the results reported in each respective article, after deidentification (text, tables, figures, and appendices). Fully deidentified participant data will be shared in a public repository without demographic information. Data with demographic information will be shared with an approved data access agreement.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
Time Frame
For data shared through a data access agreement, beginning 3 months and ending 5 years following each article publication. Data shared in a public repository will be available immediately following each article publication and will be available for at least 5 years.
Access Criteria
For data that contain demographic information, investigators who provide a methodologically sound proposal, and whose proposed use of the data has been approved by an independent review committee identified for this purpose. Any researcher may access the version of the data available in a public repository. * For what types of analyses? To achieve aims in the approved proposal and for meta-analysis * By what mechanism will data be made available? Proposals should be directed to Christoffer.rahm@ki.se. To gain access to the data with demographic information, data requesters will need to sign a data access agreement. Data will be made available digitally via a secure data transfer facility provided by Karolinska Institute. Fully deidentified data without demographics will be made available on the Open Science Framework (osf.io).

Locations