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Effectiveness of an Online Prevention Program in Reducing the Risk of STD Infection in Young Adults

Internet-based Efficacy Trial of an HIV Prevention Program

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00255944
Acronym
Youthnets
Enrollment
2622
Registered
2005-11-21
Start date
2005-10-31
Completion date
2008-12-31
Last updated
2020-10-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV Infections, Sexually Transmitted Diseases

Keywords

HIV Prevention, Internet Intervention, STDs

Brief summary

This study will evaluate the effectiveness of a tailored interactive online risk reduction program versus a standard online risk reduction program in reducing the risk of Sexually Transmitted Diseases (STD) infection in young adults.

Detailed description

Adolescents and young adults are at the greatest risk for acquiring an STD. Approximately 3 million people between the ages of 18 and 24 become infected each year. Education about the risks and consequences of unprotected sex is a powerful tool that can be used to prevent or reduce the risk of infection. The program in this study will deliver messages to educate participants about condom use and the risk of STD infection. This study will evaluate the effectiveness of a tailored interactive online risk reduction program versus a standard online risk reduction program in reducing the risk of STD infection in young adults. Participants in this 1-year open-label study will be recruited exclusively via the internet. Participants will be randomly assigned to receive internet-based messages from either the Youthnet program or the control program. Messages from the Youthnet program will be interactive and tailored specifically to Human Immunodeficiency Virus/Sexually Transmitted Diseases (HIV/STD) risk reduction. The control program will deliver standard STD/HIV prevention messages. Participants will be assessed at baseline and a follow-up session 4 months after enrollment. Frequency of condom use and attitudes toward condom use will be assessed using behavioral scales.

Interventions

BEHAVIORALYouthnet Internet-based program

Messages from the Youthnet program will be interactive and tailored specifically to HIV/STD risk reduction. Participants will be exposed to five flash computer vignettes of 30 seconds each, concerning condom attitudes, norms self-efficacy, and risk awareness.

BEHAVIORALControl Internet based program

The control program will deliver standard STD/HIV prevention messages.

Sponsors

National Institute of Mental Health (NIMH)
CollaboratorNIH
University of Colorado, Denver
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 25 Years
Healthy volunteers
Yes

Inclusion criteria

* Has access to the internet * Has an e-mail address

Exclusion criteria

* Colorado resident

Design outcomes

Primary

MeasureTime frame
Efficacy of Internet-based Program for Increasing Condom Use With Non-main Sex PartnersMonth 2 post baseline

Secondary

MeasureTime frame
Efficacy of Internet-based Program for Increasing Condom Use Attitudes, Norms, and Intentions With Non-main Sex PartnersMonth 2 post baseline

Countries

United States

Participant flow

Participants by arm

ArmCount
Intervention
Participants will receive internet-based messages from the Youthnet program Youthnet Internet-based program: Messages from the Youthnet program will be interactive and tailored specifically to HIV/STD risk reduction. Participants will be exposed to five flash computer vignettes of 30 seconds each, concerning condom attitudes, norms self-efficacy, and risk awareness.
514
Control
Participants will receive internet-based messages from the control program Control Internet based program: The control program will deliver standard STD/HIV prevention messages.
477
Total991

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up797834

Baseline characteristics

CharacteristicControlTotalIntervention
Age, Continuous21.8 years
STANDARD_DEVIATION 1.8
21.7 years
STANDARD_DEVIATION 1.8
21.7 years
STANDARD_DEVIATION 1.8
Ethnicity (NIH/OMB)
Hispanic or Latino
7 Participants22 Participants15 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
470 Participants969 Participants499 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
86 Participants189 Participants103 Participants
Race (NIH/OMB)
Black or African American
11 Participants22 Participants11 Participants
Race (NIH/OMB)
More than one race
31 Participants62 Participants31 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
33 Participants67 Participants34 Participants
Race (NIH/OMB)
White
316 Participants651 Participants335 Participants
Sex: Female, Male
Female
234 Participants464 Participants230 Participants
Sex: Female, Male
Male
243 Participants527 Participants284 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 1,3110 / 1,311
serious
Total, serious adverse events
0 / 1,3110 / 1,311

Outcome results

Primary

Efficacy of Internet-based Program for Increasing Condom Use With Non-main Sex Partners

Time frame: Month 2 post baseline

ArmMeasureValue (MEAN)Dispersion
Intervention Arm--exposure to FacebookEfficacy of Internet-based Program for Increasing Condom Use With Non-main Sex Partners.68 percentage of sex acts protected by condStandard Deviation 1.96
Control Arm--exposure to Control Content on FacebookEfficacy of Internet-based Program for Increasing Condom Use With Non-main Sex Partners.56 percentage of sex acts protected by condStandard Deviation 1.96
Secondary

Efficacy of Internet-based Program for Increasing Condom Use Attitudes, Norms, and Intentions With Non-main Sex Partners

Time frame: Month 2 post baseline

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026