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The Evaluation of Pulse: A Mobile Health App and Teen Pregnancy Prevention Program

The Evaluation of Pulse: A Mobile Health App and Teen Pregnancy Prevention Program

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04043130
Enrollment
2317
Registered
2019-08-02
Start date
2016-11-30
Completion date
2020-06-30
Last updated
2020-06-16

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

Conditions

Contraceptive Usage, Unprotected Sex

Keywords

Reproductive and Sexual Health Care Utilization

Brief summary

This study used a randomized controlled design to evaluate the efficacy of a new mobile app, Pulse, in reducing the incidence of unprotected sex among young women. Pulse is a web-based mobile health application that can be accessed through mobile smartphones and computers. Pulse was designed to increase highly effective birth control use and reproductive and sexual health care utilization, and ultimately decrease teen pregnancy. The sample was comprised of 2,317 women aged 18-20 who, at enrollment, were not pregnant or trying to become pregnant, had daily access to a smartphone, were currently living in the United States or a U.S. territory, and spoke English. Most of the sample (86%) identified as Black and/or Latinx. The evaluation team enrolled participants over a two and a half year enrollment period using social media, including Facebook and Instagram. Users accessed Pulse autonomously, on their own terms, and in their own time and place. The app consists of 6 sections and includes 3 hours of unique content. It does not require the user to follow a specific sequence of content viewed; however, all users received a monetary incentive after registering with the app. Young women randomized to the intervention condition were given access to Pulse indefinitely and received daily text messages related to sexual health for 6 weeks. Control participants were directed to a free general health/fitness web-based mobile application, also called Pulse, and received text messages related to general health for 6 weeks. The control and treatment apps look and feel similar aesthetically but contain different content. Participants in both the intervention and comparison groups received a baseline survey, a 6-week follow-up survey, and a 6-month follow-up survey (the 6-month follow-up survey was only administered to participants recruited between November 2018 and March 2019). Participants also received incentives for completing the baseline and post-intervention surveys. Both surveys were conducted online via an electronic survey platform. This study was conducted as a Rigorous Evaluation of New or Innovative Approaches to Prevent Teen Pregnancy funded by the U.S. Department of Health and Human Services' Office of Adolescent Health.

Interventions

BEHAVIORALPulse

The intervention provides participants access to Pulse, a web-based mobile health app designed for Black and Latinx women ages 18-20. Participants can access the app autonomously and on their own schedule. The app for the experimental arm, the Pulse treatment app, provides information on birth control, healthy relationships, sexual health and physiology, pregnancy, and utilization of clinical services. The app for the comparator arm, the Pulse control app, provides information on general health topics, such as the importance of sleep, healthy eating, and friendships. Participants receive MMS messages that reinforce app content and remind them to visit the app.

Sponsors

Healthy Teen Network
CollaboratorOTHER
Ewald and Wasserman
CollaboratorUNKNOWN
MetaMedia Training International, Inc.
CollaboratorINDUSTRY
Child Trends
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 20 Years
Healthy volunteers
Yes

Inclusion criteria

* Gender: Female * Age Limit: 18-20 * Must have daily access to a smartphone that receives text messages and can access the Internet * Must speak English * Must live in the United States or a U.S. territory

Exclusion criteria

* Currently pregnant or trying to get pregnant

Design outcomes

Primary

MeasureTime frameDescription
Unprotected sex, no contraceptiveBaseline (unprotected sex in the past 3 months)Ever having sexual intercourse without using any method of contraception (among full sample)
Unprotected sex, no highly effective contraceptiveBaseline (unprotected sex in the past 3 months)Ever having sexual intercourse without using a hormonal or LARC method of contraception (among full sample)

Secondary

MeasureTime frameDescription
Reproductive and sexual health care utilization (among full sample)6-week post-baseline (in the past 6 weeks)Visiting a health care provider for reproductive or sexual health services within the past 6 weeks for the 1st follow-up survey

Countries

United States

Outcome results

None listed

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