ClinicalTrials.gg
CompletedNCT02905526Updated Feb 7, 2018

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

An interventional study of Contraceptive instant messages and Mobile phone app in Contraception, sponsored by London School of Hygiene and Tropical Medicine. Completed at 1 site in Bolivia. Open to female participants aged 16 Years to 24 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-02-07.

Sponsored by London School of Hygiene and Tropical Medicine · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
645
Allocation
Randomized
Ages
16 Years to 24 Years
Sex
Female
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Study 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.

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Conditions studied

  • Contraception

Keywords

  • Reproductive health
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In context

Lead sponsor

London School of Hygiene and Tropical Medicine is the lead sponsor of 298 studies on the registry; 15 are open to participants now.

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

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Who can participate

Ages eligible
16 Years to 24 Years
Sexes eligible
Female
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

  • 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

Exclusion Criteria:

  • Cannot read Spanish
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
645 participants (actual)

Study arms

  • Experimental
    Intervention

    App plus the contraceptive instant messages

    Behavioral: Contraceptive instant messages · Other: Mobile phone app

  • Placebo comparator
    Control

    App only

    Other: Mobile phone app

Interventions

  • BehavioralContraceptive instant messages

    Contraceptive Instant messages

  • OtherMobile phone app

    Mobile phone app

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What researchers measure

Primary outcomes

  1. Use of effective contraception

    The proportion reporting current use of effective contraception (pill, intrauterine device, injection, implant, patch)

    Time frame: 4 months

  2. Acceptability of at least one method of effective contraception

    The proportion reporting that at least one method of effective contraception is acceptable (pill, intrauterine device, injection, implant, patch)

    Time frame: 4 months

Secondary outcomes

  1. Acceptability of individual effective contraceptive methods

    The proportion reporting that individual methods of effective contraception are acceptable (pill, intrauterine device, injection, implant, patch)

    Time frame: 4 months

  2. Discontinuation of effective contraception

    The proportion reporting use of effective contraception at any time during the 4 months (pill, intrauterine device, injection, implant, patch)

    Time frame: 4 months

  3. Service uptake

    The proportion reporting attending a sexual health service during the 4 months

    Time frame: 4 months

  4. Unintended pregnancy

    The proportion reporting that they became pregnant and did not want to become pregnant during the study

    Time frame: 4 months

  5. Induced abortion

    The proportion reporting having an abortion during the study

    Time frame: 4 months

Other outcomes

  1. Knowledge of effective contraception

    Score on the knowledge measure

    Time frame: 4 months

  2. Perceived norms in relation to using and communicating with partners about contraception

    Responses to the perceived norms scales

    Time frame: 4 months

  3. Personal agency in using and communicating with partners about contraception

    Responses to the personal agency scales

    Time frame: 4 months

  4. Intention to use effective contraception

    Response to the intention scale

    Time frame: 4 months

  5. Intervention 'dose' received

    If participants read all, some, most or none of the messages and if they stopped the messages

    Time frame: 4 months

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Study locations

1 site
  • Centro de Investigacion, Educacion y Servicios
    La Paz, Bolivia
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References and documents

Publications

  • McCarthy OL, Aliaga C, Torrico Palacios ME, Lopez Gallardo J, Huaynoca S, Leurent B, Edwards P, Palmer M, Ahamed I, Free C. An Intervention Delivered by Mobile Phone Instant Messaging to Increase Acceptability and Use of Effective Contraception Among Young Women in Bolivia: Randomized Controlled Trial. J Med Internet Res. 2020 Jun 22;22(6):e14073. doi: 10.2196/14073. PubMed 32568092 ↗
  • McCarthy OL, Osorio Calderon V, Makleff S, Huaynoca S, Leurent B, Edwards P, Lopez Gallardo J, Free C. An Intervention Delivered by App Instant Messaging to Increase Acceptability and Use of Effective Contraception Among Young Women in Bolivia: Protocol of a Randomized Controlled Trial. JMIR Res Protoc. 2017 Dec 18;6(12):e252. doi: 10.2196/resprot.8679. PubMed 29254910 ↗

Individual participant data

Plan to share: Undecided

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 7, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02905526
Collaborators
International Planned Parenthood Federation, Centro de Investigacion, Educacion y Servicios
Responsible party
Sponsor
First posted
Sep 19, 2016
Start date
Mar 1, 2017
Primary completion
Jan 31, 2018
Completion
Jan 31, 2018
Last update
Feb 7, 2018

Study contacts

Caroline Free, PhD
principal investigator · London School of Hygiene and Tropical Medicine

Oversight

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

Not currently enrolling

This study is completed, as verified in Sep 2017. You cannot join it, but the record below documents what was studied.

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