An interventional study of Next4You in Pregnancy Related, Adolescent Behavior and Sexually Transmitted Diseases, sponsored by ETR Associates. Enrolling by invitation at 1 site in United States. Open to participants aged 16 Years to 19 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-04-08.
Sponsored by ETR Associates · Not applicable, Interventional, and Prevention
The purpose of the study is to rigorously evaluate Next4You, an innovative, fully mobile program featuring 6 content modules, each containing 8-10 microlessons intended to reduce rates of unintended pregnancy and sexually transmitted infections (STI) and increase essential knowledge, attitudes, and skills among young people aged 16-19 currently in the foster care system in California.
Next4You will be tested using a randomized controlled trial (RCT) involving approximately 500-600 young people ages 16-19 with former or current experience in the California foster care system. Participants will complete an online screener that will assess eligibility (age, foster youth status, county of residence, English proficiency, and access to a device that is Wi-Fi or cellular enabled). Participants will be randomly assigned to receive access to the Next4You mobile platform and its microlessons and resources or a control website containing various health promotion materials. Participants in both conditions will have four consecutive weeks to explore the content on the platform (defined as the implementation period). Self-reported survey data related to attitudes, knowledge, and behavior around romantic relationships and sexual behavior are collected at baseline, as well as 3 months and 9 months after the intervention ends.
305 studies on the registry are indexed under Adolescent Behavior; 47 are open to participants now.
This study's planned enrollment of 500 is above the median of 172 across 256 interventional studies indexed under Adolescent Behavior.
Browse Adolescent Behavior studies →ETR Associates is the lead sponsor of 8 studies on the registry; 2 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Inclusion Criteria: Age, foster youth status, county of residence, English proficiency, access to a digital device that is Wi-Fi and/or cellular enabled -
Exclusion Criteria:
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Next4You is a web-based, self-paced program featuring 6 content modules, each containing 8-10 microlessons intended to reduce rates of unintended pregnancy and sexually transmitted infections (STI) and increase essential knowledge, attitudes, and skills among young people aged 16-19 currently in foster care in California. Each microlesson is 2-4 minutes with diverse content formats. Youth in the intervention condition will have unlimited access to the platform for an intensive 4-week period. During this period, engagement activities will be deployed twice weekly to draw users back into the platform for further engagement with the microlessons. Content will also be released on a schedule to encourage continued engagement. Following the intensive 4-week period, youth will retain unlimited access to the platform but will not receive reminders to engage with the content. Participants complete online surveys at baseline, as well as 3 months and 9 months after the intervention ends.
Behavioral: Next4You
Youth randomized to the attention control condition will have access to a mobile-responsive website that contains digital resources focusing on nutrition, sleep, stress/anxiety, and exercise. Like the intervention group, participants in the attention control group will have unlimited access to the general health digital resources for an intensive 4-week period. Each topic area will have between 1-4 digital pamphlets (for a total of 12 pamphlets) that are downloadable and take between 2-4 minutes to read. Participants complete online surveys related to attitudes, knowledge, and behavior around romantic relationships and sexual behavior at baseline, as well as 3 months and 9 months after the intervention ends.
Behavioral: Next4You
Youth in the intervention arm will have access for four continuous weeks to a mobile intervention that covers topics related to communication, relationships, sexual wellness, contraception, respecting self and partners, and building wealth and wellness.
Prevalence of choosing abstinence or the use of condoms if having vaginal or anal sex in the past 3 months
Measured with single-item dichotomous measure of behavior analyzed individually to assess: any consensual vaginal sex in the past 3 months (main and casual sex partners); any consensual vaginal sex with a condom in the past 3 months (main and casual sex partners); any consensual anal sex in the past 3 months (main and casual sex partners); and any consensual anal sex with a condom in past 3 months (main and casual sex partners).
Time frame: 3 months post-intervention
Prevalence of choosing abstinence or the use of condoms if having vaginal or anal sex in the past 3 months
Measured with single-item dichotomous measure of behavior analyzed individually to assess: any consensual vaginal sex in the past 3 months (main and casual sex partners); any consensual vaginal sex with a condom in the past 3 months (main and casual sex partners); any consensual anal sex in the past 3 months (main and casual sex partners); and any consensual anal sex with a condom in past 3 months (main and casual sex partners).
Time frame: 9 months post-intervention
Rates of condomless vaginal or anal sex
Single measure constructed from number of times having consensual vaginal/anal sex in past 3 months; number of times using a condom during consensual vaginal/anal sex in past 3 months; number of times using birth control during consensual vaginal sex in past 3 months
Time frame: 3 months post-intervention
Rates of condomless vaginal or anal sex
Single measure constructed from number of times having consensual vaginal/anal sex in past 3 months; number of times using a condom during consensual vaginal/anal sex in past 3 months; number of times using birth control during consensual vaginal sex in past 3 months
Time frame: 9 months post-intervention
Sexual consent self-efficacy
A measure comprised of 35 questions from the Sexual Consent Scale (Humphreys \& Brousseau, 2010) that measures perceived self-efficacy related to sexual consent at 3 months after intervention completion.
Time frame: 3 months post-intervention
Sexual consent self-efficacy
A measure comprised of 35 questions from the Sexual Consent Scale (Humphreys \& Brousseau, 2010) that measures perceived self-efficacy related to sexual consent at 3 months after intervention completion.
Time frame: 9 months post-intervention
Sexual communication self-efficacy
A measure comprised of 20 questions from the Sexual Communication Self-Efficacy Scale (Quinn-Nilas et al., 2016) that measures perceived self-efficacy related to sexual communication at 3 months after intervention completion.
Time frame: 3 months post-intervention
Sexual communication self-efficacy
A measure comprised of 20 questions from the Sexual Communication Self-Efficacy Scale (Quinn-Nilas et al., 2016) that measures perceived self-efficacy related to sexual communication at 3 months after intervention completion.
Time frame: 9 months post-intervention
Condom use attitudes/beliefs
A measure comprised of 10 questions from the Multidimensional Condom Attitudes Scale (Helweg-Larsen \& Collins, 1994) that measures attitudes related to condom use at 3 months after intervention completion.
Time frame: 3 months post-intervention
Condom use attitudes/beliefs
A measure comprised of 10 questions from the Multidimensional Condom Attitudes Scale (Helweg-Larsen \& Collins, 1994) that measures attitudes related to condom use at 3 months after intervention completion.
Time frame: 9 months post-intervention
Contraceptive use attitudes/beliefs
A measure comprised of 11 measures from the Contraceptive Attitude Scale (Kyes, 1998) that measure attitudes related to contraceptive use at 3 months after intervention completion.
Time frame: 3 months post-intervention
Contraceptive use attitudes/beliefs
A measure comprised of 11 measures from the Contraceptive Attitude Scale (Kyes, 1998) that measure attitudes related to contraceptive use at 3 months after intervention completion.
Time frame: 9 months post-intervention
Experiences with equity and power balance in relationships
A measure comprised of the Relationship Control Subscale (15 questions) from the Sexual Relationship Power Scale (Pulerwitz et al., 2000) that measures equity and power balance in relationships at 3 months after intervention completion.
Time frame: 3 months post-intervention
Experiences with equity and power balance in relationships
A measure comprised of the Relationship Control Subscale (15 questions) from the Sexual Relationship Power Scale (Pulerwitz et al., 2000) that measures equity and power balance in relationships at 3 months after intervention completion.
Time frame: 9 months post-intervention
Knowledge of health care rights and location of services
A measure of the % of correct answers comprised from survey questions on knowledge of health care rights (Anderson et al., 2021; Coyle et al., 2021; Office of Management and Budget, n.d.) at 3 months after intervention completion.
Time frame: 3 months post-intervention
Knowledge of health care rights and location of services
A measure of the % of correct answers comprised from survey questions on knowledge of health care rights (Anderson et al., 2021; Coyle et al., 2021; Office of Management and Budget, n.d.) at 3 months after intervention completion.
Time frame: 9 months post-intervention
Experience with condom use
A count of condom issues experienced (derived from 8 condom experiences survey questions \[Coyle et al., 2021\]) at 3 months after intervention completion
Time frame: 3 months post-intervention
Experience with condom use
A count of condom issues experienced (derived from 8 condom experiences survey questions \[Coyle et al., 2021\]) at 3 months after intervention completion
Time frame: 9 months post-intervention
Knowledge of educational rights and programs
A measure of the % of correct answers comprised from 3 survey questions on awareness of rights and programs for youth in foster care going to college or trade school at 3 months after intervention completion
Time frame: 3 months post-intervention
Knowledge of educational rights and programs
A measure of the % of correct answers comprised from 3 survey questions on awareness of rights and programs for youth in foster care going to college or trade school at 3 months after intervention completion
Time frame: 9 months post-intervention
Financial literacy knowledge
A measure of the % of correct answers comprised from 3 survey questions on financial literacy knowledge at 3 months after intervention completion
Time frame: 3 months post-intervention
Financial literacy knowledge
A measure of the % of correct answers comprised from 3 survey questions on financial literacy knowledge at 3 months after intervention completion
Time frame: 9 months post-intervention
Plan to share: No
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Started Sep 2023 (actual). Primary completion is estimated for Mar 2026, 30 months after the start.
Of 195 non-industry interventional studies with no phase under Adolescent Behavior, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 8 and three quarters within 43. This study's planned 30 months is above that.
Counting every sponsor, half of 198 studies reached it within 20 months; a quarter within 8 and three quarters within 40.
How these figures are worked out, and which studies are left out of them.
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