ClinicalTrials.gg
CompletedNCT07915180boysUpdated Nov 4, 2026

Boys Sexual Health

An interventional study of Boy's serious game in Sexual Health, Sexual Consent and Intervention Effectiveness, sponsored by Kaohsiung Medical University Chung-Ho Memorial Hospital. Completed at 1 site in Taiwan. Open to male participants aged 18 Years to 24 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-11-04.

Sponsored by Kaohsiung Medical University Chung-Ho Memorial Hospital · Not applicable, Interventional, and Health services research

From the registry’s dates

  • Registered 3 years 5 months after the study started (first participant enrolled Apr 2023, registered Sep 2026).
Updated Nov 4, 2026Newly registeredGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
174
Allocation
Non-randomized
Ages
18 Years to 24 Years
Sex
Male
01

Study summary

Sexual health among young people is an important issue for healthcare professionals, educators, and society. The purpose of this study was to examine the effects of a mobile application on emerging adult men's sexual knowledge, sexual consent, and safer sexual behavior outcomes. A total of 174 emerging adult men were recruited through purposive sampling between November 2022 and July 2023, with 75 in the experimental group and 99 in the control group. Data were collected at three time points: baseline, immediately after the 6-week intervention, and 4 weeks after the intervention ended. The findings showed that the intervention significantly increased sexual knowledge, improved positive attitudes toward sexual consent, and reduced assumptions of consent. It also increased behavioral intentions regarding condom use among participants in committed relationships and improved attitudes toward condom use with casual partners.

Read the detailed description

Sexual health among young people is an important issue for healthcare professionals, educators, and society. Conversations about sexual health are often sensitive and uncomfortable for young people. This is especially true for young men, who may face peer pressure and misconceptions about sexual consent and safer sexual practices. Promoting an accurate understanding of mutual consent and responsible sexual behaviors among young men is therefore crucial. To address this need, we developed a sexual health program delivered through a mobile application.

The purpose of this study was to examine the effects of a mobile application on emerging adult men's sexual knowledge, sexual consent, and safer sexual behavior outcomes. A total of 174 emerging adult men were recruited through purposive sampling between November 2022 and July 2023, with 75 in the experimental group and 99 in the control group. The experimental group received the mobile application intervention, while the control group received routine care. Data were collected at three time points: baseline, immediately after the 6-week intervention, and 4 weeks after the intervention ended.

The findings showed that the intervention significantly increased sexual knowledge, enhanced positive attitudes toward sexual consent, and reduced assumptions of consent. It also increased behavioral intentions regarding condom use among participants in committed relationships and improved attitudes toward condom use with casual partners. Overall, the intervention was perceived as a practical and innovative approach to equipping young men with essential self-protection and respectful communication skills.

02

Conditions studied

  • Sexual Health
  • Sexual Consent
  • Intervention Effectiveness
  • Mobile Application
  • Serious Games

Keywords

  • safer sexual behavior
  • sexual consent
  • sexual knowledge
  • Digital Serious Games
  • Emerging adulthood
03

In context

Lead sponsor

Kaohsiung Medical University Chung-Ho Memorial Hospital is the lead sponsor of 291 studies on the registry; 58 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 24 Years
Sexes eligible
Male
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

  • Men aged 18-24 years
  • Have access to a smartphone and mobile internet services and regularly use LINE.

Exclusion criteria

Exclusion Criteria:

  • Individuals who identify as gay
  • Individuals who are unsure of their sexual orientation.
05

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
174 participants (actual)

Study arms

  • Experimental
    experimental group

    Digital serious game

    Behavioral: Boy's serious game

  • No intervention
    control group

    routine care

Interventions

  • BehavioralBoy's serious game

    The serious game aims to promote sexual health among young men.

06

What researchers measure

Primary outcomes

  1. Sexual knowledge

    The Adolescent Sexual Knowledge Scale, developed by the Hsing-Ling Medical Foundation, was used to assess sexual knowledge among college students. The scale consists of 12 true-or-false items covering two dimensions: pregnancy and contraception, and prevention of human immunodeficiency virus infection, acquired immunodeficiency syndrome, and other sexually transmitted infections. For the pregnancy and contraception dimension, item difficulty ranged from 0.44 to 0.48, and item discrimination exceeded 0.80. For the dimension concerning prevention of human immunodeficiency virus infection, acquired immunodeficiency syndrome, and other sexually transmitted infections, item difficulty ranged from 0.39 to 0.48, and item discrimination exceeded 0.80. These results indicate good item discrimination across the scale.

    Time frame: Time Frame: baseline , immediately after the 6-week intervention, and 4 weeks post-intervention

  2. Sexual Consent

    The Sexual Consent Scale-Revised, which is based on the theory of planned behavior, includes five subscales: perceived behavioral control (11 items; Cronbach's alpha = .86), positive attitudes toward establishing consent (11 items; Cronbach's alpha = .84), indirect consent behaviors (6 items; Cronbach's alpha = .78), sexual consent norms (7 items; Cronbach's alpha = .67), and sexual consent awareness (4 items; Cronbach's alpha = .71). The scale consists of 39 items, each rated on a seven-point scale ranging from 1 (strongly disagree) to 7 (strongly agree). Higher scores indicate more positive attitudes toward and greater endorsement of sexual consent and negotiation behaviors in intimate relationships with heterosexual partners.

    Time frame: Time Frame: baseline , immediately after the 6-week intervention, and 4 weeks post-intervention

  3. Safer sex

    The Safer Sexual Behavior Scale was used to assess variables from the theory of planned behavior, including attitudes, subjective norms, perceived behavioral control, behavioral intentions, and behaviors, across four sexual behaviors. The scale consists of 60 items, each scored from 1 to 7. Three of the four sexual behaviors concern the use of contraception, condoms, and dual protection during sexual intercourse with an intimate partner, with higher scores indicating greater endorsement of safer sexual behaviors. The fourth concerns sexual intercourse with a casual partner, with higher scores indicating greater endorsement of casual sexual intercourse. Cronbach's alpha coefficients for the Chinese version ranged from .71 to .97.

    Time frame: Time Frame: baseline , immediately after the 6-week intervention, and 4 weeks post-intervention

07

Study locations

1 site
  • Kaohsiung Medical University Chung-Ho Memorial Hospital
    Kaohsiung, Taiwan 807378, Taiwan
08

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

09

Updates

1 registry update since Sep 25, 2026
Registered
First appeared on the registry. No changes since
Nov 4, 2026
Show all 1 update
  1. Nov 4, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07915180
Responsible party
Sponsor
First posted
Nov 4, 2026
Start date
Apr 27, 2023
Primary completion
Feb 3, 2024
Completion
Feb 3, 2024
Last update
Nov 4, 2026

Oversight

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

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