Practicing rheumatologists in the United States received more than $220 million from pharmaceutical companies during 2014-2019, with payments increasing each year, according to findings from a descriptive study of the Centers for Medicare & Medicaid Services Open Payments Database.
Rheumatologists have identified conflicts of interest as an ethical concern, but the details of industry payments to rheumatologists have not been investigated, wrote Michael Putman, MD, of the Medical College of Wisconsin, Milwaukee, and colleagues in Arthritis & Rheumatology. “Payments among rheumatologists may be of particular interest,” given their frequent prescription of expensive and primarily on-patent biologic and targeted disease-modifying antirheumatic drugs (DMARDs), the researchers said.
Over the 2014-2019 study period, 5,723 rheumatologists received a total of $221,254,966 from 1,610,668 payments. Of these, 3,416 (59%) received less than $5,000; 368 (6%) received more than $100,000, accounting for 78% of the total payments. The yearly value of the payments increased from $29,755,133 in 2014 to $46,308,926 in 2019, a 56% increase.
The payments to individual rheumatologists during the study period ranged from $8 to $5,612,254, with a median individual payment of $2,818. However, most (81%) of the payments were less than $25, and only 4% were more than $1,000.
Physicians who received more than $100,000 were significantly more likely to be paid speakers’ fees, consulting fees, and travel and lodging fees, but significantly less likely to receive payments for food and beverage than were those who received less than $100,000.
Overall, women made up 43% of the study population and received 34% of the total payments.
However, the median payment to male rheumatologists was significantly higher than the median payment to female rheumatologists ($3,732 vs. $2,084). Female rheumatologists were significantly more likely to receive payments for food and beverage and significantly less likely to receive speakers’ fees or travel and lodging coverage.
When the data were analyzed by state, California had the highest amount of total payments ($27,769,124), followed by New York and Texas, while Arizona had the highest spending per rheumatologist ($143,559). By region, based on U.S. Census divisions, the highest spending occurred in the Middle Atlantic Division ($46,327,351) and the highest per rheumatologist spending occurred in the East-South Central Division ($49,605).
“These data suggest industry payments in rheumatology have followed two distinct patterns, which have been observed in other medical subspecialties,” specifically, that many small payments are made to a large number of physicians, and large-value payments are made to a small number of physicians, the researchers noted.
The impact of small payments cannot be discounted, they said, “as even small gifts may affect behavior and are associated with prescribing patterns.” The impact of large payments on behavior and practice deserve further investigation, “but it is notable that a recent evaluation of rheumatology clinical practice guidelines identified substantial involvement from rheumatologists who had accepted large values of industry payments,” the researchers added.
Approximately half the total value of payments came from three companies: Bristol-Myers Squibb (20%), Abbvie (17%), and Pfizer (12%). Medications associated with the highest spending included Otezla, Humira, and Xeljanz.
Of note, the data showed that H.P. Acthar gel was among the top 10 agents for total payments, and “over 90% of rheumatologists who frequently prescribe H.P. Acthar gel have also received H.P. Acthar–related payments, raising the possibility that such payments have influenced prescribing behavior,” given the lack of high-quality evidence to support its use and the availability of less expensive alternatives, the researchers said.
The study findings were limited by several factors, including the focus only on general payments to rheumatologists, and the lack of external sources to verify payments, the researchers noted. “Most importantly, this was a descriptive study, and the degree to which payments have influenced physician behavior lies outside the scope of this work. Future studies should investigate the degree to which industry payments have influenced prescribing in the field of rheumatology.”