Disparities Seen in Weight Loss Drug Prescriptions, Fills

Socioeconomic factors and insurance type greatly influence the odds of a person with obesity receiving a prescription for a weight loss medication and subsequently filling it, new research finds.

The results come from a retrospective study of Florida and Ohio electronic health records of more than 50,000 adults with a body mass index (BMI) of ≥ 30 kg/m² who sought care for obesity from 2015 through June 2023. Only 8.0% overall had received prescriptions for weight loss medications and just 4.4% had filled them. Factors associated with lower likelihood of both prescription receipt and fills included male sex, Hispanic ethnicity, Medicaid, traditional Medicare, and Medicare Advantage insurance types.

The fill rate increased to 26% in 2022-2023 after the newer glucagon-like peptide 1 (GLP-1) agonists became available, but the identified disparities persisted throughout, study author Hamlet Gasoyan, PhD, told this news organization. “Things are changing, but this study provides a very good picture of who’s getting prescriptions and the implications for policy decisions.”

Dr. Gasoyan, of the Center for Value-Based Care Research at the Cleveland Clinic, Cleveland, Ohio, noted that Medicare doesn’t currently cover antiobesity medications nor do most Medicaid programs (neither Florida’s nor Ohio’s do), but there is now at least one bill in Congress to change that. “Medicare and other government payers are currently facing important policy decisions about antiobesity medication coverage. I think they should consider how their policies could impact existing inequalities in obesity care.”

Another noteworthy finding, Dr. Gasoyan said, is that “despite all the recent hype, the real data shows these medications are underutilized and probably will remain so.”

Asked to comment, David B. Sarwer, PhD, Director of the Center for Obesity Research and Education at Temple University, Philadelphia, Pennsylvania, told this news organization, “there’s a tremendous amount of enthusiasm in the obesity treatment community that these newer medications have the potential to be game-changers. I think what this study shows us, as does other work from this group and others, is that we still have some significant issues around access to care and long-term engagement with these medications that we need to address for them to realize their full potential.”

Dr. Sarwer acknowledged, as did Dr. Gasoyan, that the study timing is a limitation and more data will need to be collected prospectively with the new incretin drugs. As of now, though, “These medications are very expensive. While there are some insurance plans that are offering payment for them, many are not. Until we wrestle that to the ground there are always going to be questions about whether these medications are getting to the people who need them the most. I think one of the highlights of this paper is it reminds us that obesity is a disease that differentially impacts persons from underserved groups.”

Moreover, Dr. Sarwer noted, “In this day and age, many physicians don’t have a lot of time to spend with individual patients. Conversations around weight can be challenging and often very emotional for patients. I’m not sure we’ve trained physicians how to have productive, targeted conversations that lead to effective use of a weight-loss intervention. Maybe in some ways that’s what we’re seeing here.”