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Low HIV risk perception is a barrier to PrEP uptake, but few studies have examined risk perception and PrEP uptake among young men who have sex with men (YMSM). We performed a secondary analysis of data collected in 2016 from YMSM ages 16–25 in the Washington, DC metropolitan area who participated in a cross-sectional online survey that aimed to identify strategies for engaging YMSM in PrEP services. Of 188 participants, 115 (61%) were considered eligible for PrEP. Among PrEP-eligible participants who had never used PrEP, 53%, 71%, and 100% with low, moderate, and high risk perception, respectively, were willing to use PrEP (Fisher's exact test p = 0.01). Odds of PrEP willingness were greater among those with moderate/high versus low risk perception (adjusted odds ratio [OR] = 5.62, 95% CI = 1.73–18.34). HIV risk perception was not significantly associated with self-reported PrEP use. These findings suggest the importance of risk perception as a correlate of willingness to use PrEP, which is a key step in existing frameworks of PrEP uptake. [ABSTRACT FROM AUTHOR]

Objectives: Clinical trials are currently investigating the safety and efficacy of long-acting injectable (LAI) agents as HIV pre-exposure prophylaxis (PrEP). Using National HIV Behavioral Surveillance data, we assessed the self-reported willingness of men who have sex with men (MSM) to use LAI PrEP and their preference for LAI versus daily oral PrEP. Methods: In 2014, venue-based sampling was used to recruit MSM aged ≥18 years in Washington, DC. Participants completed an interviewer-administered survey followed by voluntary HIV testing. This analysis included MSM who self-reported negative/unknown HIV status at study entry. Correlates of being “very likely” to use LAI PrEP and preferring it to daily oral PrEP were identified using multivariable logistic regression. Results: Of 314 participants who self-reported negative/unknown HIV status, 50% were <30 years old, 41% were non-Hispanic Black, 37% were non-Hispanic White, and 14% were Hispanic. If LAI PrEP were offered for free or covered by health insurance, 62% were very likely, 25% were somewhat likely, and 12% were unlikely to use it. Regarding preferred PrEP modality, 67% chose LAI PrEP, 24% chose oral PrEP, and 9% chose neither. Correlates of being very likely versus somewhat likely/unlikely to use LAI PrEP included age <30 years (aOR 1.64; 95% CI 1.00–2.68), reporting ≥6 (vs. 1) sex partners in the last year (aOR 2.60; 95% CI 1.22–5.53), previous oral PrEP use (aOR 3.67; 95% CI 1.20–11.24), and being newly identified as HIV-infected during study testing (aOR 4.83; 95% CI 1.03–22.67). Black (vs. White) men (aOR 0.48; 95% CI 0.24–0.96) and men with an income of <$20,000 (vs. ≥$75,000; aOR 0.37; 95% CI 0.15–0.93) were less likely to prefer LAI to oral PrEP. Conclusions: If LAI PrEP were found to be efficacious, its addition to the HIV prevention toolkit could facilitate more complete PrEP coverage among MSM at risk for HIV. [ABSTRACT FROM AUTHOR]

Background Agents from the integrase inhibitor (INSTI) therapeutic class only are recommended as initial therapy for most patients with HIV. Clinicians now face a decision when treating ART-experienced patients on non-INSTI regimens: continue current therapy or switch to INSTI. Multiple factors may be considered in this decision: clinician/patient preference, comorbidities, tolerability, and resistance history. The objective of this analysis was to examine patient factors associated with currently taking an INSTI-based regimen. Methods We used data from the DC Cohort, a longitudinal observational cohort of patients receiving HIV care at 14 clinics between 2011–2018. Participants in the sample had ≥ 1 encounter between 4/1/17 and 3/1/18, were aged ≥ 18 years and were ART experienced. Participants were classified as currently, previously, or never on an INSTI. Independent variables included demographics, clinical characteristics, alcohol/tobacco use, HBV/HCV status and HIV-related variables (recent CD4 and HIV RNA, presence of resistance mutations). Multivariable multinomial logistic regression was used to identify factors associated with INSTI use status. Results Among 4584 participants (58.2% aged 50+ years; 69.4% male; 2.5% transgender; 80.3% Black; 36% MSM), most (65.0%) were current INSTI users; however, a sizeable proportion (28.3%) were never users and 6.7% were former users. Current and previous INSTI users were more likely to have a major NRTI, NNRTI or PI mutation compared with never users (see Table 1). Transgender participants (compared with males), were less likely to be current (vs. never) users (adjusted odds ratio (aOR) 0.48, 95% CI 0.32, 0.72). Younger participants (18–24 vs 50+ years) were more likely current users (aOR 1.90, 95% CI 1.18, 3.06), as were Hispanic participants (aOR 1.39, 95% CI 1.05, 1.84). Conclusion The majority of active DC Cohort participants were using INSTI-based therapy. Transgender and older individuals were less likely to be on INSTIs, indicating that they are more likely to be on PI-based or NNRTI-based therapy or not on therapy. Further research should explore whether this is detrimental for long-term HIV outcomes in these patient groups. Additionally, these results suggest resistance history as an important driver of INSTI prescription. Disclosures All authors: No reported disclosures. [ABSTRACT FROM AUTHOR]

Background The CDC estimates that 1.2 million people in the United States are eligible for HIV pre-exposure prophylaxis (PrEP). However, only about 120,000 people have received PrEP prescriptions through 2017. Healthcare providers' (HCP) willingness to engage patients in discussions regarding sexual health, including PrEP, is integral to increasing PrEP uptake in the United States. Our objective was to identify factors associated with patients having discussions about PrEP with their HCP. Methods Men who have sex with men (MSM) aged 16–25 in the Washington, DC metro area recruited from the community completed a web-based survey in 2016 about their perceptions of and experiences with PrEP. We used multivariable logistic regression to calculate adjusted odds ratios (aOR) for associations between sociodemographic characteristics (including: age, race/ethnicity, insurance, student/employment status, education, income, living arrangements, social support, depressive symptoms) and patient-provider discussions, including willingness to have or ever having a discussion about PrEP. Results Among 239 MSM, 51% were Black, 25% were White, and 16% were Hispanic. 154 participants (65%) were willing to ask a HCP about PrEP without their HCP bringing it up. 159 participants (67%) reported that a HCP had never talked to them about PrEP, although 100 of the 159 (63%) expressed interest in discussing PrEP with a HCP. Participants aged <21 were less willing to ask a HCP about PrEP (aOR: 0.49, 95% CI 0.28–0.85) and insured participants were more willing to ask their HCP about PrEP (aOR: 3.64, 95% CI 1.42–9.33). In multivariable analyses, no sociodemographic characteristics were associated with having talked to a HCP about PrEP, and among those who had never talked to a HCP about PrEP, no characteristics were associated with wanting to do so. Conclusion There is a need to increase PrEP uptake in populations at high risk for HIV exposure. While MSM >21 and those with health insurance were more willing to ask their HCP about PrEP, there were no other differences across multiple demographic groups. Our study suggests that a wide PrEP engagement strategy that encourages HCPs to address PrEP with their patients regardless of their demographics would be beneficial to increase PrEP uptake. Disclosures All authors: No reported disclosures. [ABSTRACT FROM AUTHOR]

Background In 2019, the US Administration announced the Ending the HIV Epidemic plan to decrease new infections. A key component is the Test and Treat plan to diagnose early, treat rapidly and achieve viral suppression (VS) among persons living with HIV (PLWH). We assessed retention in care (RIC), antiretroviral therapy (ART) initiation and VS among newly diagnosed PLWH in Washington, DC. Methods We conducted a cross-sectional analysis using data from the DC Cohort, an observational longitudinal cohort of PLWH in care in 14 clinics in DC. We included participants enrolled from 2011 to 2016 whose HIV diagnosis was within 1 year of enrollment and with at least 12 months follow-up. RIC was defined as ≥2 visits or HIV lab results 90 days apart in the first year of follow-up. ART initiation was defined as being prescribed ART, VS was defined as HIV RNA <200 copies/mL, and both these outcomes were assessed at 2 time points: by 3 and 12 months. Adjusted multivariable logistic regression was used to identify clinical and sociodemographic factors associated with RIC, ART initiation and VS. Results Among the 455 newly diagnosed participants (6% of all enrollees), median age was 33 years (IQR 25, 45), 69% were Black, 79% male, 60% MSM. Median duration of HIV at enrollment was 4.9 months (IQR 2.3, 7.7). Median nadir CD4 count was 346 cells/μL (IQR 224, 494). Of the 455, 38% had a history of AIDS, 92% were RIC, 65% initiated ART by 3 months and 17% had VS by 3 months. There were no differences by sex or race for RIC, ART initiation and VS. An AIDS diagnosis at enrollment was associated with RIC (aOR 2.28; 1.01–5.15), ART initiation by 3 months (aOR 2.41; 1.54–3.76), and VS by 12 months (aOR 1.92; 1.06–3.46). Lower nadir CD4 (aOR 0.89 per 50 cell increase; 0.84–0.94) and younger age (aOR 0.747 per 10-year increase; 0.584–0.995) were associated with ART initiation by 12 months. Conclusion Although the majority of newly diagnosed PLWH were RIC, fewer started ART or achieved VS. With a large proportion of our sample having an AIDS diagnosis at enrollment, we illustrate the ongoing challenge of late HIV diagnosis in DC. Those with AIDS at diagnosis were more likely to initiate ART within the first 3 months. As same-day ART initiation is scaled up in DC, future research can evaluate if all PLWH, regardless of AIDS status, will achieve this milestone earlier. Disclosures All authors: No reported disclosures. [ABSTRACT FROM AUTHOR]