NCT01087164

Brief Summary

Using health behavior theories and theories related to the effects of persuasive messages (i.e., inoculation theory), we plan to: 1. Systematically test the effects of brief persuasive message interventions on receipt of the first dose of HPV vaccine; and 2. evaluate the effects of the interventions on followup with subsequent doses of vaccine (using reminder notices with persuasive message content). One set of interventions will involve a comparison of a 1 sided message, which only emphasizes the positive aspects of a recommended behavior, with a 2 sided message, which presents negative aspects of the behavior followed by positive counterarguments. A second set of interventions will involve a test of a social compliance (foot-in-the-door technique, in which half of the parent participants will be asked to respond to a high compliance request (i.e., a request likely to generate high compliance, such as, "Do you want to protect your daughter from cancer? or for male children, "Do you want to protect your son from genital warts?"before subsequently being asked about actually having their adolescents vaccinated. The other half of the parents will not receive a high compliance request. Parents of 11-14 year old adolescents will be randomized to the two sets of interventions, resulting in a 2 X 2 design: message sidedness (1 sided; 2 sided) and social compliance request (yes; no). The specific aims of this proposal are to evaluate the 1) efficacy of 2 sided vs. 1 sided messages on rates of HPV vaccination; 2) the efficacy of a social compliance intervention on rates of HPV vaccination; and 3) potential moderators and mediators of message effect on vaccine acceptance.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
600

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2010

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 2, 2009

Completed
1.1 years until next milestone

First Posted

Study publicly available on registry

March 16, 2010

Completed
6 months until next milestone

Study Start

First participant enrolled

September 1, 2010

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2014

Completed
Last Updated

February 10, 2014

Status Verified

February 1, 2014

Enrollment Period

3.8 years

First QC Date

February 2, 2009

Last Update Submit

February 6, 2014

Conditions

Keywords

Vaccine acceptancehuman papillomavirusbrief messagessocial complianceMessage sidedness

Outcome Measures

Primary Outcomes (1)

  • Gardasil immunization

    Parent signs vaccine information sheet and returns to school-based health center. Adolescent is vaccinated with first dose of Gardasil by licensed health care professional.

    One year

Secondary Outcomes (3)

  • Completion of three dose series of Gardasil

    Three years

  • Message type

    Two years

  • Gender

    One year

Study Arms (2)

Compliance

EXPERIMENTAL

Parents will be randomized to receive high or no compliance condition where those in the experimental group will be asked about whether or not they will protect their daughter from cervical cancer or for males, their son from genital warts.

Behavioral: Compliance

Message sidedness

EXPERIMENTAL

Parents will be given either a one-sided verbal message or a two-sided verbal message about the HPV vaccine.

Behavioral: Message sidedness

Interventions

ComplianceBEHAVIORAL

Parent will either receive a high or no compliance condition where each is asked to endorse the importance of prevention cervical cancer or genital warts depending on their teen's gender.

Compliance

Parent will receive either a one-sided or two-sided message about the HPV vaccine

Message sidedness

Eligibility Criteria

Age11 Years - 15 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • The parents of adolescent males and females (aged 11-14 years) who have provided written consent for their adolescent to receive health care services through the Teen Health Center, Inc, a nonprofit organization that works in collaboration with the Department of Pediatrics at the University of Texas Medical Branch, Galveston, Texas and whose adolescents have not received their first dose of HPV vaccine, will be eligible to participate.

You may not qualify if:

  • Having received one or more doses of the HPV vaccine Gardasil

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Teen Health Centers

Galveston, Texas, 77550, United States

Location

Related Publications (1)

  • Rickert VI, Auslander BA, Cox DS, Rosenthal SL, Rickert JA, Rupp R, Zimet GD. School-based vaccination of young US males: impact of health beliefs on intent and first dose acceptance. Vaccine. 2014 Apr 7;32(17):1982-7. doi: 10.1016/j.vaccine.2014.01.049. Epub 2014 Jan 31.

MeSH Terms

Conditions

Papillomavirus Infections

Interventions

Compliance

Condition Hierarchy (Ancestors)

Sexually Transmitted Diseases, ViralSexually Transmitted DiseasesCommunicable DiseasesInfectionsDNA Virus InfectionsVirus DiseasesTumor Virus InfectionsGenital DiseasesUrogenital DiseasesDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

ElasticityMechanical PhenomenaPhysical Phenomena

Study Officials

  • Vaughn I Rickert, PsyD

    Indiana University School of Medicine

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor and Director, Section of Adolescent Medicine

Study Record Dates

First Submitted

February 2, 2009

First Posted

March 16, 2010

Study Start

September 1, 2010

Primary Completion

June 1, 2014

Study Completion

June 1, 2014

Last Updated

February 10, 2014

Record last verified: 2014-02

Locations