NCT04587167

Brief Summary

The safe, highly-effective human papillomavirus (HPV) vaccine remains underused in the US; only 51% of 13- to 17-year-old girls and boys were up-to-date by 2018. The Announcement Approach Training is effective in increasing HPV vaccine uptake during the clinic visit by training providers to make strong vaccine recommendations and answer parents' common questions. Systems communication like recall notifications also improve vaccination by reducing missed clinical opportunities. Although never tested to support HPV vaccination, the ECHO (Extension for Community Healthcare Outcomes) Model is a proven implementation strategy to promote capacity exchange between health care experts at academic centers and primary care providers at the front line of rural community health care. The trial will test the effectiveness of two ECHO-delivered HPV vaccination communication interventions versus control: HPV ECHO will provide Announcement Approach training, and HPV ECHO+ will provide training plus recall notices to communicate with parents who initially decline vaccination.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started May 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 7, 2020

Completed
7 days until next milestone

First Posted

Study publicly available on registry

October 14, 2020

Completed
7 months until next milestone

Study Start

First participant enrolled

May 1, 2021

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2024

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2025

Completed
10 months until next milestone

Results Posted

Study results publicly available

February 24, 2026

Completed
Last Updated

February 24, 2026

Status Verified

February 1, 2026

Enrollment Period

3.4 years

First QC Date

October 7, 2020

Results QC Date

September 29, 2025

Last Update Submit

February 20, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • HPV Vaccination (≥1 Dose), 11-14 Year Olds at 12 Months

    Coverage change from baseline to 12 months in HPV vaccine initiation (≥1 dose), among 11- to 14- year old patients, as measured by clinics' records

    Twelve months

Secondary Outcomes (13)

  • HPV Vaccination (≥1 Dose), 11-14 Year Olds at 3 Months

    Three months

  • HPV Vaccination (≥1 Dose), 11-14 Year Olds at 6 Months

    Six months

  • HPV Vaccination (≥1 Dose), 11-14 Year Olds at 9 Months

    Nine months

  • HPV Vaccination (Completion), 11-14 Year Olds at 3 Months

    Three months

  • HPV Vaccination (Completion), 11-14 Year Olds at 6 Months

    Six months

  • +8 more secondary outcomes

Other Outcomes (2)

  • Tetanus, Diphtheria, and Acellular Pertussis (Tdap) Vaccination, 11-14 Year Olds

    Twelve months

  • Meningococcal Vaccination (≥1 Dose), 11-14 Year Olds

    Twelve months

Study Arms (3)

HPV ECHO

EXPERIMENTAL

Clinics randomly assigned to this arm will receive the intervention via real-time, interactive videoconferencing using Zoom at no cost to participants. The intervention has a curriculum of 10 sessions focused on the evidence-based Announcement Approach. Sessions will be 60 minutes in duration and held every other weekly for 4 months at regularly scheduled times.

Other: Project ECHOOther: Announcement Approach Training

HPV ECHO+

EXPERIMENTAL

Clinics randomly assigned to this arm will receive the HPV ECHO intervention plus a systems communication strategy to deliver recall notices to parents who initially decline HPV vaccination. This arm includes 12 primary care clinics in Pennsylvania.

Other: Project ECHOOther: Announcement Approach TrainingOther: Recall notices

Control

NO INTERVENTION

Clinics randomly assigned to this arm will receive no ECHO interventions. This arm includes 12 primary care clinics in Pennsylvania.

Interventions

Using proven adult learning techniques and interactive video technology, the ECHO Model promotes knowledge exchange between experts or specialists at centers of excellence ("the hub") and primary care providers (the "spokes), typically located in rural settings. Through regular real-time collaborative sessions, the spokes connect with the hub and with other spokes to discuss 1) best practices in care and 2) complex cases managed within their practice.

Also known as: ECHO Model
HPV ECHOHPV ECHO+

Train physicians and their clinic staff to make strong HPV vaccine recommendations by using presumptive announcements. If parents show vaccine hesitancy, the Training train physicians a 3-step approach (Connect, Clarify, Counsel) to share effective, evidence-based messages about HPV vaccine.

HPV ECHOHPV ECHO+

Notify parents that their child is behind for HPV vaccination. Recall notices will include research-tested messages to specifically address parent concerns. Recall notices will be sent to parents via patient portal or email communication.

HPV ECHO+

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Family medicine or pediatric clinic in Pennsylvania
  • Having at least 100 active patients, ages 11-14.

You may not qualify if:

  • Primary care clinic outside Pennsylvania
  • Participated in HPV vaccine communication or quality improvement research either through Penn State or another institution in the last 12 months.
  • Parents in nested study survey
  • Parent or guardian of an adolescent ages 11-17
  • Adolescent has not yet started HPV vaccination
  • Adolescent receive primary care at participating clinic
  • Not the parent or guardian of an adolescent ages 11-17
  • Adolescent already initiated HPV vaccination
  • Adolescent does not receive primary care at participating clinic

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Penn State College of Medicine

Hershey, Pennsylvania, 17033, United States

Location

Related Publications (1)

  • Calo WA, Shah PD, Fogel BN, Ruffin Iv MT, Moss JL, Hausman BL, Segel JE, Francis E, Schaefer E, Bufalini CM, Johnston N, Hogentogler E, Kraschnewski JL. Increasing the adoption of evidence-based communication practices for HPV vaccination in primary care clinics: The HPV ECHO study protocol for a cluster randomized controlled trial. Contemp Clin Trials. 2023 Aug;131:107266. doi: 10.1016/j.cct.2023.107266. Epub 2023 Jun 9.

Limitations and Caveats

Challenges occurred in obtaining aggregate immunization data. Three clinics did not submit data, and others could not consistently follow the same patient cohort across time points, resulting in inconsistencies. The study team collaborated with clinics and EHR servicers to ensure the highest possible data quality.

Results Point of Contact

Title
William Calo
Organization
Milton S. Hershey Medical Center

Study Officials

  • William A Calo, PhD, JD, MPH

    Penn State College of Medicine

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Model Details: Cluster randomized design
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

October 7, 2020

First Posted

October 14, 2020

Study Start

May 1, 2021

Primary Completion

September 30, 2024

Study Completion

April 30, 2025

Last Updated

February 24, 2026

Results First Posted

February 24, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

No raw data will be shared with the general public or other researchers.

Locations