The STOP-HPV Scale Up Study

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age9-17
SponsorUniversity of California, Los Angeles

About this trial

Human papillomavirus (HPV) causes 35,900 US cancer cases per year, 4,000 deaths, and $4 billion in can In this study, the investigators will conduct a 3-arm clustered randomized controlled trial (RCT) in an estimated 72 practices from up to 8 health systems to evaluate the effectiveness and cost effectiveness of two potentially scalable implementation strategies (based on prior work) to increase the initiation of HPV vaccine against a usual care (control) arm. The intervention arms are 1) online provider communication training only ("STOP-HPV-Online" and 2) online provider communication training plus a Learning Collaborative, with performance feedback, attended by practice leads ("STOP-HPV-LC).

cer-related costs. It is recommended at ages 11-12 years routinely but can be given starting at ages 9-10 years. Despite having an effective vaccine, HPV vaccine initiation/completion rates in the U.S. were only at 76.8%/61.4% respectively in 2023 among 13-17 year olds; these rates are lower than the other recommended adolescent vaccines. Two key barriers are 1) suboptimal clinician communication to address parental concerns and 2) ineffective office systems causing missed vaccine opportunities.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Patient of participating practice

Well child care visit during the 12-month intervention period

No prior dose of HPV vaccine at the time of the well child care visit

Age-eligible

Disqualifiers

Prior dose of HPV vaccine

Trial design

Design model

Parallel

Treatments tested in this trial

  • STOP-HPV-Online

    Behavioral

    Approximately one third of practices within a participating health system will be randomized to receiving the STOP-HPV-Online intervention.

  • STOP-HPV-LC

    Behavioral

    Approximately one third of practices within a participating health system will be randomized to receiving the STOP-HPV-LC intervention.

Treatment groups

100,000 Participants
are divided into 3 treatment groups
Group A: STOP-HPV OnlineExperimental treatment 1 intervention
Group B: STOP-HPV LCExperimental treatment 1 intervention
Group C: Usual CareNo intervention 0 interventions

Trial outcomes

Primary outcomes

1

Initiation (first dose) of HPV vaccination among 9-<13 year olds at or following a well care visit with a participating provider during the intervention period.

The percent of children ages 9-\<13 years of age who received their first dose of HPV vaccine at or following a well child care visit with a participating provider during the intervention-period (denominator is children ages 9-\<13 with a well child visit during the study period at which they were due for their first dose).

Time frame
12 months from start of intervention

Secondary outcomes

1

Initiation (first dose) of HPV vaccination among 13-17 year olds at or following a well care visit with a participating provider during the intervention period.

The percent of children ages 13-17 years of age who received their first dose of HPV vaccine at or following a well child care visit with a participating provider during the intervention-period (denominator is children ages 13-17 years with a well child visit during the study period at which they were due for their first dose).

Time frame
12 months from start of intervention
2

Initiation (first dose) of HPV vaccination among 9-<13 year olds at or following a well care visit with any provider during the intervention period.

The percent of children ages 9-\<13 years of age who received their first dose of HPV vaccine at or following a well child care visit with any provider (participating or not) during the intervention-period (denominator is children ages 9-\<13 with a well child visit during the study period at which they were due for their first dose).

Time frame
12 months from start of intervention
3

Initiation (first dose) of HPV vaccination among 13-17 year olds at or following a well care visit with any provider during the intervention period.

The percent of children ages 13-17 years of age who received their first dose of HPV vaccine at or following a well child care visit with any provider (participating or not) during the intervention-period (denominator is children ages 13-17 years with a well child visit during the study period at which they were due for their first dose).

Time frame
12 months from start of intervention
4

Total implementation cost

The difference in costs between arms will be used to calculate the incremental cost-effectiveness ratio (ICER)

Time frame
12 months from start of intervention

Other outcomes

Sponsors and contacts

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University of California, Los Angeles

Lead sponsor

American Medical Group Association

Collaborator

National Cancer Institute (NCI)

Collaborator