Abstract
In 2016, the British Columbia HIV/AIDS Drug Treatment Program modified its prescriber alert system for antiretroviral therapy (ART) interruptions to include referrals to regional public health nursing teams for direct outreach support for those who remain off treatment for 4 months or longer. We evaluated clinically relevant outcomes of this Re-Engagement and Engagement in Treatment for Antiretroviral Interrupted and Naïve populations (RETAIN) initiative, in comparison to previous time-periods. We analyzed ART interruptions triggering alerts in pre-RETAIN (July 2013-April 2016) and post-RETAIN periods (May 2016-October 2017) with follow-up continuing until October 2018. We compared the proportions of those who restarted ART and achieved viral suppression in pre-RETAIN and post-RETAIN periods and the time to ART restart using generalized estimating equations. Cox proportional hazards modelling was used to examine associations with time-to-ART-restart. A total of 1805 individuals experienced ART interruptions triggering 3219 alerts; 2050 in pre-RETAIN and 1169 in post-RETAIN periods. Participants were predominantly men (74%) and had a median duration of ART of 5 years. Among persons who remained interrupted >4 months after an ART interruption alert was sent, the median time from interruption to ART re-initiation declined from 8.7 months to 7.4 months (P < 0.001) from pre-to post-RETAIN periods. Interruptions in the post-RETAIN era were associated with an increased hazard of restarting ART (adjusted hazard ratio 1.51; 95% CI: 1.34 to 1.69). Public health referrals shortened the length of ART interruptions after alerts sent to prescribers had not resulted in re-engagement. Similar programs should be considered in other jurisdictions.
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More From: Journal of acquired immune deficiency syndromes (1999)
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