An Intervention Delivered by App Instant Messaging to Increase Use of Effective Contraception Among Young Women in Bolivia

A Randomised Controlled Trial of an Intervention Delivered by App Instant Messaging to Increase Use of Effective Contraception Among Young Women in Bolivia

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02905526

Enrollment

645

Registered

2016-09-19

Start date

2017-03-01

Completion date

2018-01-31

Last updated

2018-02-07

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

Conditions

Contraception

Keywords

Reproductive health

Brief summary

This randomised controlled trial will establish the effect a contraceptive intervention delivered by mobile phone app instant messaging on use of effective contraception in Bolivia. Woman aged 16-24 will be randomised to have access to Centro de Investigacion, Educacion y Servicios's sexual and reproductive health app (control) or the app plus 0-3 instant messages a day for 4 months (intervention). Participants will complete a questionnaire at baseline and 4 month follow-up.

Interventions

BEHAVIORALContraceptive instant messages

Contraceptive Instant messages

OTHERMobile phone app

Mobile phone app

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

PREVENTION

Masking

SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender

FEMALE

Age

16 Years to 24 Years

Healthy volunteers

Yes

Inclusion criteria

* Aged 16-24 * Own a personal Android mobile phone * Live in El Alto or La Paz Bolivia * Sexually active * Not using the pill, implant, injection, intrauterine device or patch * Want to avoid a pregnancy

Exclusion criteria

* Cannot read Spanish

Design outcomes

Primary

Measure	Time frame	Description
Use of effective contraception	4 months	The proportion reporting current use of effective contraception (pill, intrauterine device, injection, implant, patch)
Acceptability of at least one method of effective contraception	4 months	The proportion reporting that at least one method of effective contraception is acceptable (pill, intrauterine device, injection, implant, patch)

Secondary

Measure	Time frame	Description
Discontinuation of effective contraception	4 months	The proportion reporting use of effective contraception at any time during the 4 months (pill, intrauterine device, injection, implant, patch)
Acceptability of individual effective contraceptive methods	4 months	The proportion reporting that individual methods of effective contraception are acceptable (pill, intrauterine device, injection, implant, patch)
Service uptake	4 months	The proportion reporting attending a sexual health service during the 4 months
Unintended pregnancy	4 months	The proportion reporting that they became pregnant and did not want to become pregnant during the study
Induced abortion	4 months	The proportion reporting having an abortion during the study

Other

Measure	Time frame	Description
Perceived norms in relation to using and communicating with partners about contraception	4 months	Responses to the perceived norms scales
Intention to use effective contraception	4 months	Response to the intention scale
Intervention 'dose' received	4 months	If participants read all, some, most or none of the messages and if they stopped the messages
Personal agency in using and communicating with partners about contraception	4 months	Responses to the personal agency scales
Knowledge of effective contraception	4 months	Score on the knowledge measure

Countries

Bolivia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 25, 2026