By Pat Anson, PNN Editor

Workers’ compensation claims in the U.S. for opioids and other pain relievers fell significantly in 2023, one of the largest drops the work comp industry has seen in years, according to a new report.

San Diego-based Enlyte analyzes drug utilization and spending trends annually for property and casualty insurers. The company’s Drug Trends Report for 2023 estimates that overall opioid use per claim fell by 9.7 percent, with the use of sustained-release opioids such as oxycodone down more than 10 percent.

Surprisingly, work comp claims for non-opioid pain relievers also fell, even though they are increasingly prescribed as alternatives to opioids. Claims for non-steroidal anti-inflammatory drugs (NSAIDs) fell by 3% last year, with anticonvulsants like gabapentin down 7.4% and antidepressants such as duloxetine falling 6.1%. 

"This, by far, marks one of the largest drops in opioid utilization we've seen in years," Nikki Wilson, PharmD, senior director of clinical pharmacy solutions at Enlyte, said in a press release. "In addition, opioid alternatives commonly prescribed to manage acute and chronic pain also experienced decreases in utilization per claim, although to a lesser degree than opioids."

Enlyte said the decline in opioid use was “supported by prescribing guidelines,” noting that claims for high-dose opioid prescriptions have fallen for nine consecutive years. The 2016 CDC opioid guideline urged doctors not to prescribe doses higher than 90 morphine milligram equivalents (MME) per day. Although that recommendation is voluntary, it has taken root in many laws, regulations and insurance policies governing the use of opioids.

As a result, non-opioid analgesics and muscle relaxants are used more often than opioids for pain management during the first two years of a work comp claim. Only afterwards are sustained-release opioids used more frequently for chronic pain caused by job-related injuries.

Even though opioid use has fallen dramatically in recent years, opioids remain the top therapeutic class for claims, followed by NSAIDs, anticonvulsants, muscle relaxants, antidepressants and topical medications. Those six therapeutic classes represent over two-thirds of the prescription drug claims in 2023.

Respiratory and Migraine Drugs  

While the overall cost of prescription drugs fell slightly (down 0.2%) in 2023, the price of respiratory and migraine medications rose significantly, up 14.7% and 10.2%, respectively.

Newer migraine drugs that block calcitonin gene-related peptides (CGRPs) are some of the most expensive medications, with the average wholesale price of a Nurtec prescription reaching $1,916 and $1,654 for a Ubrelvy prescription.      

"Basically, what's driving these trends are the costs of the top three medications in their respective classes," Wilson said. "For instance, for migraine medications, Nurtec ODT is prescribed about 15% of the time yet makes up more than 31% of the total drug spend in this category. Similarly, respiratory medication like Trelegy Ellipta is prescribed about 10%, but accounts for nearly 19% of all respiratory medication total costs."

Enlyte reported the number of retail and mail order prescription drug claims is trending downward due to an “evolving work environment.” More people are working from home and as independent contractors, reducing the number of on-site job injuries and employee compensation claims.