The U.S. is reeling from a public health crisis driven by the misuse of prescription and illicit opioids with nearly 12 million people abusing the drugs annually.

The Midwest saw opioid overdoses increase 70 percent from July 2016 to September 2017, and every 15 minutes a baby is born suffering from opioid withdrawal as a result of maternal opioid abuse.

A biomedical engineer at Washington University in St. Louis is developing a therapeutic option that would prevent the opiates from crossing the blood-brain barrier, preventing the high abusers seek.

"Research shows that an average of 25 percent of patients prescribed opioids for chronic pain misuse them, and 75 percent of all people who progressed to use heroin admitted that their first opioid was a prescription drug," said Rudra, who is the first faculty member from McKelvey Engineering to receive a grant from NIDA.

The unfortunate thing is that there are a couple of existing pharmacotherapies that actually are addictive themselves."

Psychoactive drugs have to get to the brain to be able to experience "the high," so blocking them from reaching the brain prevents the rewarding effect, said Rudra, who is collaborating on the project with the Hennepin Health Care Research Institute in Minnesota.

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