The enormous national effort to return the Medicaid registration process to pre-ventricular rules that begins in April 2023 may have disturbed the care of people who are treatment for opioid addiction, according to a study by the new University of Michigan.
Researchers call this finding about, because the disorder can increase the risk of excessive dose or other negative effects of opioid use disorder in states that were more aggressive at removing people from covering Medicaid during the process of “20s”.
The study has consequences for the current debate on the future of Medicaid funding, which can lead to further changes in eligibility in some or all states. Although the deaths from an overdose of opioids have fallen somewhat, they are still as high as they were in the pandemic, with about 80,000 Americans a year dying of this cause.
The new analysis, published in Jama open network, It examines the recipes for buprenorphine, a drug that can help someone with opioid use disorder achieve and maintain recovery. Includes data from more than 569,000 adults across the country that had Medicaid coverage and received buprenorphine during the period before removal.
The researchers, led by postdoctoral colleague Joanne Constantin, Ph.D., compared what happened to the buprenorphine recipes and how patients pay to fill them in two groups of states.
The first group included the states where the percentage of people with Medicaid fell more than the month before the start began in late 2023: Arkansas, Colorado, Idaho, Kansas, Montana, New Humsire, North Dakota, Oklahoma, Texas
The second group was states with the smallest percentage of drops: California, Connecticut, Delaweber, Hawaii, Illinois, Maine, Massachusetts, Minnesota, Nebraska, Nevada, Virginia and Wisconsin.
Some states that expanded Medicaid programs in other ways in 2023 or delayed the launch process were not analyzed. Nor is the data from people aged 65, who also have access to Medicare drug coverage.
Basic findings
Researchers found that patients were less likely to continue to fill in buprenorphine and more likely to pay for buprenorphine by cash or private insurance if they lived in states with the largest and smaller Medicaid registration reductions.
Constantine and the senior author of the document, Kao-Ping Chua, MD, Ph.D., note that the majority of the deconstruction during the launch is due to administrative issues, such as people who do not provide information about their income until their deadline.
They also notice that their analysis includes buprenorphine prescription information from all people in each state who received the drug through Medicaid over the years that led to the pandemic and in its early years – not just those who lost Medicaid coverage during the launch.
This means that real drops in recipes may be much larger among those who had been discouraged by coverage, which has seen other care and prescription access studies to people who lost Medicaid coverage.
It is important to study the effects of launch because it offers a natural experiment to consider how changes in Medicaid coverage affect the use of potentially rescue drugs such as buprenorphine, which patients may take for months or years to achieve and maintain recovery.
Joanne Constantin, Ph.D., Postdoctoral partner
Chua adds, “This study is largely related to ongoing discussions on whether they will reduce Medicaid funding. If this funding is reduced, many people will be disconnected from Medicaid – as well as during the non -inspection process.
The loose process focused on returning to the rules to determine the eligibility for Medicaid in any state in force before the pandemic – such as the annual verification that a person’s income was near or below the federal level of poverty or that other eligibility claims were met.
The future of Medicaid can further change these eligibility criteria if states receive less than the federal government or changes in their ability to finance the state’s share in the program from tax revenue.
Nearly 72 million Americans are currently registering on Medicaid after the end of the launch and 7.2 million children are enrolled in the children’s health insurance plan or chip -based chip which is also based on Medicaid funding.
Ten states have not expanded Medicaid under the law on affordable care, but those that have made coverage to all people up to 138% of the Federal Poverty Federation or approximately $ 21,000 for a person and $ 36,000 for a family of three.
Chua is the director of Constantinople and Constantine, the Susan B. Meister’s Evaluation Center and Research Centers, or Chear. Both are members of the Department of Pediatrics at the UM Medical School. Chua is also a member of the UM Institute of Politics and Innovation and is serving in the leadership of the UM Opioid Research Institute.
In addition to Constantine and Chua, the authors of the study are Genevieve M. Kenney, Ph.D., of Urban Institute and Kosali Simon, Ph.D. of the University of Indiana, Bloomington. The study was funded by the National Institute of Health Institutes of Drugs of the National Institutes of Health (R01DA056438).
Source:
Magazine report:
Constantine, J., et al. (2025). Medicaid unfolding and changes in buprenorphine distribution. Open the Jama Network. Doi.org/10.1001/jamanetworkopen.2025.8469.