The Self-Testing options in the Era of Primary HPV screening for cervical cancer (STEP) trial will evaluate effectiveness of home-based HPV kits for improving cervical cancer screening uptake and its cost-effectiveness. The investigators will compare cervical cancer screening uptake within six months among women randomized to different outreach approaches based on prior screening behavior: A) Adherent and coming due: direct mail HPV kit vs. opt-in HPV kit vs. education; B) Overdue: direct mail HPV kit vs. education; C) Unknown: opt-in HPV kit vs. education.
The scientific objective of the proposed research is to study whether an in-home programmatic HPV screening outreach strategy improves cervical cancer screening initiation and uptake. Identifying new, patient-centered options that motivate continued screening initiation and uptake is essential now and in the future. In August 2018, the US Preventive Services Task Force released updated cervical cancer screening guidelines that include human papillomavirus (HPV) testing alone (ie, primary HPV screening) as a newly recommended strategy for women aged 30-65 years. With primary HPV screening, home-based screening is an emerging option, because HPV tests (unlike Pap tests) can be performed on clinician- or self-collected samples. Self-collected samples are as sensitive as clinician-collected samples in detecting HPV and mailing HPV self-sampling kits increases screening participation. As US healthcare systems prepare to implement primary HPV screening, they will need to consider a variety of strategies. To date, HPV self-sampling randomized clinical trials have included only overdue women; no study has evaluated uptake and acceptance of HPV self-sampling kits as an alternative to in-clinic screening in a screening-adherent population. Based on our Home-based Options to Make cervical cancer screening Easy (HOME) trial (ClinicalTrials.gov, NCT02005510), most women will test negative (88%) and can continue routine screening; 11% will require in-clinic follow-up: 3% directly to colposcopy (HPV-16/18+ results) and 8% to Pap because of "HPV+ other" results or an unsatisfactory result (\<1%). For home-based HPV screening strategies to be successful, ensuring high follow-up compliance in the minority of women who test positive is critical.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
HEALTH_SERVICES_RESEARCH
Masking
SINGLE
Enrollment
32,771
Subjects will receive Kaiser Permanente Washington standard of care.
Participants will receive an Educational Brochure describing why screening for cervical cancer is important, information about HPV and its role in cervical cancer, and different strategies for cervical cancer screening.
Participants will receive an Educational Brochure describing why screening for cervical cancer is important, information about HPV and its role in cervical cancer, and different strategies for cervical cancer screening. Participants will also receive an insert describing the home-based cervical cancer screening option and that a kit will be sent within 1 week. An HPV self-collection kit with instructions and a pre-paid return envelope (to Kaiser Permanente Washington's laboratory) will be sent to individuals with instructions on how to complete the kit.
Participants will receive an Educational Brochure describing why screening for cervical cancer is important, information about HPV and its role in cervical cancer, and different strategies for cervical cancer screening. Participants will receive an Opt-in Insert describing the home-based cervical cancer screening option and how to request a kit. Individuals can request a kit by phone or through a webpage. Individuals who request a kit will receive the HPV self-collection kit with instructions and a pre-paid return envelope (to Kaiser Permanente Washington's laboratory) will be sent to individuals with instructions on how to complete the kit.
Kaiser Permanente Washington Health Research Institute
Seattle, Washington, United States
Screening Completion by Outreach Approach and Prior Screening Behavior
Rate of completing cervical cancer screening completion by outreach approach and prior screening behavior. Screening completion defined by returning the home kit and attending the recommended in clinic follow-up (if applicable); or receiving in clinic screening.
Time frame: Within 6 months of randomization
Incremental Cost-effectiveness Ratio by Outreach Approach and Prior Screening Behavior
Incremental cost-effectiveness ratio, which will be defined for each outreach approach within each screening behavior subgroup. Also, comparisons across screening behavior subgroups of usual care plus education to usual care.
Time frame: Within 6 months of randomization
Screening Initiation by Outreach Approach and Prior Screening Behavior
Screening Initiation defined as returning the home kit or receiving in clinic cervical cancer screening.
Time frame: Within 6 months of randomization
Time From Randomization to Screening Completion by Outreach Approach and Prior Screening Behavior
Time from randomization to screening completion by outreach approach and prior screening behavior. Screening completion defined by returning the home kit and attending the recommended in clinic follow-up (if applicable); or receiving in clinic screening.
Time frame: Within 6 months of randomization
Completion of Recommended Follow-up After a Positive Kit Result
Proportion of intervention group women who complete recommended follow-up after a positive kit result by outreach approach and prior screening behavior. Per current guidelines, in-clinic Pap after other-HR HPV positive; or colposcopy after HPV 16/18+ HPV self-collection
Time frame: Within 6 months of randomization
Screening Method Choice
Proportion of intervention group women who do not screen, return the home kit or receive in-clinic screening by outreach approach and prior screening behavior. Screening uptake outcome (no screen, home kit, or in-clinic) by outreach approach and by prior screening behavior
Time frame: Within 6 months of randomization
Qualitative Information From Focus Groups on Patient Preferences by Prior Screening Behavior
Through focus groups, the investigators will explore patient preference for, and satisfaction with, home HPV screening and barriers to follow-up of abnormal screening results.
Time frame: 6-12 months following study invitation
Health System Costs to Implementing Home Testing by Outreach Approach and Prior Screening Behavior
Economic assessment of system-level financial consequences of adopting home-based HPV screening for cervical cancer. These analyses will evaluate the needed time to follow-up for the next cervical cancer screening to reduce gaps in cervical cancer screening HEDIS metrics, which also addresses program affordability.
Time frame: 3-5 years (projected)
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