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Increasing Optimal Use of HPV Vaccination in Primary Care

Randomized Controlled Trial to Evaluate an Implementation Strategy to Increase Optimal Use of HPV Vaccine in Primary Care

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04180462
Enrollment
20
Registered
2019-11-27
Start date
2020-01-07
Completion date
2024-04-29
Last updated
2025-03-25

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

Conditions

Human Papillomavirus Vaccines

Keywords

Implementation Strategy, Quality Improvement

Brief summary

Washington University will evaluate the effectiveness of a multi-component implementation strategy to increase use of HPV vaccine in primary care practices.

Detailed description

The investigators at Washington University will complete a cluster-randomized trial to evaluate the effectiveness of a multi-component implementation strategy (the intervention) to increase use of the HPV vaccine according to CDC guidelines. The unit of randomization is a community-based, primary care pediatric practice. Twenty practices will be randomized into two groups, the intervention group (n=10) or a wait-list control group (n=10). The intervention will be implemented over 2-years and includes: 1) an educational video for providers; 2) audit and feedback of vaccine coverage; 3) a communication strategy; and 4) practice facilitation. The primary outcome of HPV vaccination by age 13 will be assessed at 24 months, and at 36 months to assess if change is sustained.

Interventions

Practice facilitation to support quality improvement methods to effect practice change to develop a sustainable HPV vaccine delivery system.

OTHEREducation

An educational video to increase the provider's knowledge about guideline recommendations and patient and practice benefits of vaccination by age 13.

Audit and feedback of vaccine coverage to increase motivation to engage in practice change.

A communication strategy to improve the provider's communication skills and their self-efficacy to address parental hesitation.

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Washington University School of Medicine
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
21 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

Practices: * Community-based pediatric primary care practices with 2 or more providers. * Providers who deliver wellness care to preteens and adolescents. * Willingness to participate in the practice facilitator-guided QI process. Providers: * Providers who deliver wellness care to preteens and adolescents. * Willingness to complete study questionnaires. * Willingness to participate in the practice facilitator-guided QI process.

Exclusion criteria

* Practices and providers may be excluded at the discretion of the PI.

Design outcomes

Primary

MeasureTime frameDescription
Initiation of the HPV Vaccine 2-dose Series.24 monthsThe proportion of eligible preteens who initiate the HPV vaccine before their 13th birthday, at 24 months, post randomization
Completion of the HPV Vaccine 2-dose Series.24 monthsThe proportion of eligible preteens who complete the HPV vaccine before their 13th birthday, at 24 months, post randomization.

Secondary

MeasureTime frameDescription
Sustainability of the Intervention Benefit for Initiation of the HPV Vaccine.36 monthsThe proportion of eligible preteens who receive the 1st dose of HPV vaccine before their 13th birthday at 36 months, post randomization
Sustainability of the Intervention Benefit for Completion of the HPV Vaccine.36 monthsThe proportion of eligible preteens who complete the HPV vaccine before their 13th birthday, at 36 months, post randomization

Countries

United States

Participant flow

Participants by arm

ArmCount
Intervention Group (24 Months Post-randomization)
Practices randomly assigned to this arm will receive the multi-component intervention.
2,151
Wait List Control Group (24 Months Post-randomization)
Practices randomly assigned to this arm will be offered the intervention in the last two years of the study.
1,615
Intervention Group (36 Months Post-randomization)
Practices randomly assigned to this arm will receive the multi-component intervention.
2,211
Wait List Control Group (36 Months Post-randomization)
Practices randomly assigned to this arm will be offered the intervention in the last two years of the study.
1,410
Total7,387

Baseline characteristics

CharacteristicIntervention Group (24 Months Post-randomization)Wait List Control Group (24 Months Post-randomization)Intervention Group (36 Months Post-randomization)Wait List Control Group (36 Months Post-randomization)Total
Age, Categorical
<=18 years
2151 Participants1615 Participants2211 Participants1410 Participants7387 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
32 Participants63 Participants32 Participants23 Participants150 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
1634 Participants1226 Participants1692 Participants1128 Participants5680 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
485 Participants326 Participants487 Participants259 Participants1557 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants1 Participants2 Participants2 Participants6 Participants
Race (NIH/OMB)
Asian
60 Participants19 Participants40 Participants25 Participants144 Participants
Race (NIH/OMB)
Black or African American
92 Participants446 Participants120 Participants384 Participants1042 Participants
Race (NIH/OMB)
More than one race
30 Participants45 Participants15 Participants35 Participants125 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants1 Participants3 Participants1 Participants5 Participants
Race (NIH/OMB)
Unknown or Not Reported
454 Participants213 Participants471 Participants144 Participants1282 Participants
Race (NIH/OMB)
White
1514 Participants890 Participants1560 Participants819 Participants4783 Participants
Region of Enrollment
United States
2151 participants1615 participants2211 participants1410 participants7387 participants
Sex/Gender, Customized
Female
1037 Participants818 Participants1108 Participants701 Participants3664 Participants
Sex/Gender, Customized
Male
1113 Participants797 Participants1103 Participants704 Participants3717 Participants
Sex/Gender, Customized
Unknown
1 Participants0 Participants0 Participants5 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 2,1510 / 1,6150 / 2,2110 / 1,410
other
Total, other adverse events
0 / 2,1510 / 1,6150 / 2,2110 / 1,410
serious
Total, serious adverse events
0 / 2,1510 / 1,6150 / 2,2110 / 1,410

Outcome results

Primary

Completion of the HPV Vaccine 2-dose Series.

The proportion of eligible preteens who complete the HPV vaccine before their 13th birthday, at 24 months, post randomization.

Time frame: 24 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Intervention GroupCompletion of the HPV Vaccine 2-dose Series.1135 Participants
Wait List Control GroupCompletion of the HPV Vaccine 2-dose Series.809 Participants
Primary

Initiation of the HPV Vaccine 2-dose Series.

The proportion of eligible preteens who initiate the HPV vaccine before their 13th birthday, at 24 months, post randomization

Time frame: 24 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Intervention GroupInitiation of the HPV Vaccine 2-dose Series.1723 Participants
Wait List Control GroupInitiation of the HPV Vaccine 2-dose Series.1219 Participants
Secondary

Sustainability of the Intervention Benefit for Completion of the HPV Vaccine.

The proportion of eligible preteens who complete the HPV vaccine before their 13th birthday, at 36 months, post randomization

Time frame: 36 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Intervention GroupSustainability of the Intervention Benefit for Completion of the HPV Vaccine.1279 Participants
Wait List Control GroupSustainability of the Intervention Benefit for Completion of the HPV Vaccine.703 Participants
Secondary

Sustainability of the Intervention Benefit for Initiation of the HPV Vaccine.

The proportion of eligible preteens who receive the 1st dose of HPV vaccine before their 13th birthday at 36 months, post randomization

Time frame: 36 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Intervention GroupSustainability of the Intervention Benefit for Initiation of the HPV Vaccine.1812 Participants
Wait List Control GroupSustainability of the Intervention Benefit for Initiation of the HPV Vaccine.1052 Participants

Source: ClinicalTrials.gov · Data processed: Feb 28, 2026