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Human Papillomavirus VaccinesNCT02537756

Developing a Self-persuasion Intervention Promoting Adolescent HPV Vaccination

A study testing Project Voice in people with Human Papillomavirus Vaccines, run by University of Texas Southwestern Medical Center at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

HPV vaccine coverage among adolescents in the US is suboptimal. This is particularly true among traditionally underserved adolescents. Few parent-targeted interventions have focused on the parental decision-making process. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Human Papillomavirus Vaccines
What is being tested?
Project Voice
Could I receive a placebo?
No, everyone receives an active treatment
How many people
737 participants
Where
1 siteUnited States
Study dates
5 Apr 2016to 26 Oct 2019
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Undecided parents (18 years and older) whose children are 11-17 year old patients who have not begun the HPV vaccine series.

Who cannot join

  • Parents whose child is a pregnant adolescent
  • Lack telephone access
  • Having impairing hearing or speech
  • Participants will be excluded from participation in future stages

Trial locations and contacts

1 site in 1 country.

United States1 site
  • UT Southwestern Medical Center

    Dallas, Texas, 75390-8557

Other trials in United States

About this study

HPV vaccine coverage among adolescents in the US is suboptimal. This is particularly true among traditionally underserved adolescents. Few parent-targeted interventions have focused on the parental decision-making process. Self-persuasion, generating one's own arguments for engaging in a behavior, may be an effective means to influence parents' motivation to vaccinate their children. In a three-phase study, investigators are using quantitative and qualitative research methods to develop and refine a tablet-based self-persuasion intervention for parents who are undecided about the HPV vaccine. This clinical trial submission focuses on the second phase of the study. The results of the second phase will inform the third phase of the trial (also registered in clinical trials).

Read the detailed description

Despite the fact that HPV vaccination is recommended for male and female adolescents, HPV vaccine 3 dose coverage among adolescents is poor (38% for girls, 14% for boys). HPV-related cancers are a significant burden on the US healthcare system and could be prevented through adolescent vaccination. Rates of vaccination are suboptimal among underserved populations (uninsured, low-income, racial and ethnic minorities) often seen in safety-net clinics. Few interventions have been designed that target decision-making among parents of unvaccinated adolescents. Self-persuasion, generating of one's own arguments for a health behavior, may be an effective means of influencing HPV vaccination behaviors among undecided or ambivalent parents. Through three stages, investigators will identify and develop a self-persuasion intervention strategy to promote adolescent HPV vaccination in safety-net clinics. The current trial, Stage 2, is a four-arm randomized controlled trial (RCT), using a 2x2 factorial design, in which investigators will assign participants to one of four self-persuasion intervention conditions that vary by cognitive processing level (verbalize vs. listen to arguments) and choice of argument topics (parents choose vs. are assigned topics) to identify which intervention condition is optimal. Conducted in a laboratory setting, investigators will identify and select the optimal intervention condition through quantitative analysis of the effects on parents' vaccination intentions and qualitatively by exploring parental experiences with the self-persuasion tasks.

Being tested
Project Voice

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Project VoiceBehavioural

    A tablet-based intervention that directs participants through different activities related to adolescent HPV vaccination based on their assigned condition

Study groups in NCT02537756
Study groupRoleWhat they receive
1- Verbalize, ChoiceExperimentalParents will use a tablet-based application (Project Voice) that directs them to verbalize their own arguments based on topics they choose
Receives: Behavioral: Project Voice
2- Listen, ChoiceExperimentalParents will use a tablet-based application (Project Voice) that directs them to listen to peer-generated arguments based on topics they choose
Receives: Behavioral: Project Voice
3- Verbalize, AssignedExperimentalParents will use a tablet-based application (Project Voice) that directs them to verbalize their own arguments based on topics assigned to them
Receives: Behavioral: Project Voice
4- Listen, AssignedExperimentalParents will use a tablet-based application (Project Voice) that directs them to listen to peer-generated arguments based on topics assigned to them
Receives: Behavioral: Project Voice

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Survey Items Measuring Parental Intentions to vaccinate

    Change in intentions of the parent to vaccinate from baseline survey to exit survey using measures adapted from Gerend \& Shepherd (2012). Intentions Likert Scale responses range from 1-very likely to 5-very unlikely.

    Measured: During the intervention visit (1 hr)

Secondary outcomes (2)
  1. HPV vaccination behavior documented in the electronic medical record, initiation

    Number of parents who initiated the series by vaccinating their child within 12 months of the study appointment as evidenced by documentation in the child's electronic medical record.

    Measured: 12 months

  2. Change in Decision Stage

    Change in decision stage response of parents from baseline survey to post-educational video to post-intervention tasks.

    Measured: During the intervention visit (1 hr)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Sep 2015 (estimated)
  2. Study start5 Apr 2016
  3. Primary completion26 Jul 2018
  4. Study completion26 Oct 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Factorial
Masking
Single blind
Who is masked
Care provider
Enrolment
737 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02537756
Sponsor's protocol ID
STU 022013-016
Other IDs
1R01CA178414-01
Status last verified
May 2020
First submitted
26 Aug 2015
Last updated
18 May 2020
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Yes: Deidentified individual participant data (including data dictionaries) will be made available, in addition to study protocols, the statistical analysis plan, and the informed consent form. The data will be made available upon publication to researchers who provide a methodologically sound proposal and sign a data use agreement. Proposals should be submitted to Dr. Jasmin Tiro (jasmin.tiro@utsouthwestern.edu).

Publications

  • Tiro JA, Lee SC, Marks EG, Persaud D, Skinner CS, Street RL, Wiebe DJ, Farrell D, Bishop WP, Fuller S, Baldwin AS. Developing a Tablet-Based Self-Persuasion Intervention Promoting Adolescent HPV Vaccination: Protocol for a Three-Stage Mixed-Methods Study. JMIR Res Protoc. 2016 Jan 29;5(1):e19. doi: 10.2196/resprot.5092.

    PubMed 26825137

Questions about this trial

What is this clinical trial studying?

A study testing Project Voice in people with Human Papillomavirus Vaccines, run by University of Texas Southwestern Medical Center at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 May 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Survey Items Measuring Parental Intentions to vaccinate (time frame: During the intervention visit (1 hr)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02537756, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 May 2020.

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