We propose to conduct a randomized controlled trial to test the effectiveness and cost -effectiveness of an
intervention designed to increase and improve equitable naloxone distribution in 48 syringe service programs
(SSPs) throughout California. In the past 5 years, opioid overdose mortality rates increased 114% among
Black, 97% among Latinx, and 32% among White populations. Opioid overdose fatalities are preventable with
the timely administration of naloxone, an opioid antagonist, yet our research has shown that Black and Latinx
people who inject drugs (PWID) are 25% and 47% less likely, respectively, to receive naloxone than White
PWID. Building on pilot work (R21DA046703; Principal Investigator: Lambdin), we will use the Systems
Analysis and Improvement Approach to improve equitable access to naloxone from SSPs (SAIA-Naloxone). In
our pilot study with two SSPs in California, we found that SAIA-Naloxone led to an average increase of 23
more people receiving naloxone (p<0.001) and 64 more naloxone doses bein g distributed (p<0.001) per week.
We observed a 116% increase in naloxone distribution to participants who were Black, Indigenous, or People
of Color (BIPOC). SAIA-Naloxone was feasible and acceptable, and it resulted in meaningful improvements in
naloxone penetration. We are now proposing to test SAIA-Naloxone in a large-scale randomized controlled
trial. To effectively address opioid overdoses, SSP-based naloxone programs must engage participants in a
series of sequential steps including screening participants; training them in naloxone administration;
distributing naloxone; and building systems that support participants to possess naloxone, use naloxone during
overdose events, and obtain naloxone refills as needed. This paradigm is known as the naloxone delivery
cascade. SAIA-Naloxone is a multicomponent implementation strategy designed to help SSPs identify and
address weaknesses along the naloxone delivery cascade. It includes determination of drop-offs in cascade
delivery, process mapping and consensus discussions to identify potential solutions, and continuous quality
improvement. Our Aim 1 is to test the effectiveness of SAIA-Naloxone on improving naloxone distribution at
SSPs, relative to treatment as usual. Aim 2 is to test the effectiveness of SAIA-Naloxone on improving
naloxone distribution at SSPs to BIPOC participants, relative to treatment as usual. Aim 3 is to estimate the
cost and cost-effectiveness of SAIA-Naloxone on improving equitable access to naloxone at syringe service
programs, relative to treatment as usual. This project will directly contribute to the improvement of minority
health and the reduction of health disparities. The proposed study aligns with the goals of the Department of
Health and Human Services and the Substance Abuse and Mental Health Services Administration, which
recognize naloxone access as our nation’s first defense to prevent opioid overdose deaths.