Medicaid Managed Care Plan Alignment With State Substance Use Disorder Treatment Coverage Requirements

The Milbank Quarterly

Medicaid managed plan coverage for medications for alcohol use disorders (AUD) and opioid use disorder (OUD) varies across states but is generally lower in Republican-leaning states. Researchers conducted a national survey to evaluate if these differences in coverage were due to variation in state policy or variations in Medicaid managed plan alignment with state policy. Researchers found that while Republican-leaning states were generally a little less likely to require coverage of most or all medications for AUD and OUD and place limits on prior authorization, managed plans in Republican-leaning states were much less likely to follow state requirements. Given these findings, efforts to increase access to medications for AUD and OUD will need to address misalignment between managed care plans and state policy, and not just focus on making changes to state policy.

Read this issue of the ASAM Weekly

Subscribe to the ASAM Weekly

Visit ASAM

Outpatient Direct Initiation of Injectable Buprenorphine in a Harm Reduction Agency and Primary Care Clinic: A Retrospective Case Series

Journal of Addiction Medicine

Initiating weekly long-acting injectable buprenorphine (LAIB) without prior sublingual buprenorphine (“direct-to-inject” or DTI) may reduce buprenorphine initiation barriers. In this case series, outpatient DTI outcomes are described. Of the 23 patients with available data, 19 (83%) had no withdrawal symptoms pre-DTI. Of the 20 patients with documented post-DTI withdrawal symptoms, 3 (15%) had no withdrawal, 12 (60%) had mild, 4 (20%) had moderate, and one (5%) patient had severe withdrawal. Thirty days post-DTI, 14 (58%) patients were retained on any buprenorphine formulation, and 11 (46%) patients were retained at 90 days. The median post-DTI buprenorphine treatment days were 77 (range: 9–90). The majority of patients had no pre-DTI withdrawal symptoms, no or mild withdrawal symptoms post-DTI, and were retained on buprenorphine at 30 days post-DTI, with nearly half retained at 90 days. DTI is a promising buprenorphine initiation strategy, but further research is warranted.

Read this issue of the ASAM Weekly

Subscribe to the ASAM Weekly

Visit ASAM

A µ-opioid receptor superagonist analgesic with minimal adverse effects

Nature

This study identifies a novel µ-opioid receptor (MOR) agonist with supramaximal intrinsic efficacy and a unique pharmacological profile that produced effective analgesia in rodents with minimal adverse effects. N-desethyl-fluornitrazene (DFNZ) was derived from a class of synthetic benzimidazole opioids called nitazenes. DFNZ has impaired brain penetrance, a unique spatiotemporal MOR cellular signaling profile, and diminished efficacy at the MOR–galanin 1 receptor (GAL1) heteromer. DFNZ does not induce respiratory depression, tolerance, or MOR downregulation after repeated exposure. Compared with other MOR agonists, DFNZ has limited effects on dopamine neurotransmission in the nucleus accumbens and weaker reinforcing effects in the drug self-administration procedure. These results provide novel insights about MOR and nitazene pharmacology, have important implications for pain and addiction treatment, and challenge the prevailing dogma that high-efficacy MOR agonists cannot constitute safe and effective therapeutic agents.

Read this issue of the ASAM Weekly

Subscribe to the ASAM Weekly

Visit ASAM