Reasons for PrEP Discontinuation After Navigation at Sexual Health Clinics: Interactions Among Systemic Barriers, Behavioral Relevance, and Medication Concerns.

BACKGROUND: Pre-exposure prophylaxis (PrEP) for HIV prevention requires engagement throughout the PrEP care continuum. Using data from a PrEP navigation program, we examine reasons for PrEP discontinuation. SETTING: Participants were recruited from New York City Health Department Sexual Health Clinics with PrEP navigation programs. METHODS: Participants completed a survey and up to 3 interviews about PrEP navigation and use. This analysis includes 94 PrEP initiators that were PrEP-naive before their clinic visit, started PrEP during the study, and completed at least 2 interviews. Interview transcripts were reviewed to assess reasons for PrEP discontinuation. RESULTS: Approximately half of PrEP initiators discontinued PrEP during the study period (n = 44; 47%). Most participants (71%) noted systemic issues (insurance or financial problems, clinic or pharmacy logistics, and scheduling barriers) as reasons for discontinuation. One-third cited medication concerns (side effects, potential long-term side effects, and medication beliefs; 32%) and behavioral factors (low relevance of PrEP because of sexual behavior change; 34%) as contributing reasons. Over half (53.5%) highlighted systemic issues alone, while an additional 19% attributed discontinuation to systemic issues in combination with other factors. Of those who discontinued, approximately one-third (30%) restarted PrEP during the follow-up period, citing resolution of systemic issues or behavior change that increased PrEP relevance. CONCLUSIONS: PrEP continuation is dependent on interacting factors and often presents complex hurdles for patients to navigate. To promote sustained engagement in PrEP care, financial, clinic, and pharmacy barriers must be addressed and counseling and navigation should acknowledge factors beyond sexual risk that influence PrEP use.

Predictors of Human Papillomavirus Vaccine Completion Among Female and Male Vaccine Initiators in Family Planning Centers.

OBJECTIVES: We estimated human papillomavirus (HPV) vaccine series completion and examined predictors of completion among adolescents and young adults in a large family planning network. METHODS: Our retrospective cohort study of vaccine completion within 12 months and time to completion used electronic health record data from 119 Planned Parenthood health centers in 11 US states for 9648 patients who initiated HPV vaccination between January 2011 and January 2013. RESULTS: Among vaccine initiators, 29% completed the series within 12 months. Patients who were male, younger than 22 years, or non-Hispanic Black or who had public insurance were less likely to complete within 12 months and completed more slowly than their counterparts. Gender appeared to modify the effect of public versus private insurance on completion (adjusted hazard ratio = 0.76 for women and 0.95 for men; relative excess risk due to interaction = 0.41; 95% confidence interval = 0.09, 0.73). CONCLUSIONS: Completion was low yet similar to previous studies conducted in safety net settings.