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Prior authorizations for infusibles cause delays, toxicities


 

FROM ARTHRITIS CARE & RESEARCH

Moreover, nearly half (48%) of the patients with denials had already tried or were currently taking an oral disease-modifying antirheumatic drug, such as methotrexate.

The majority of denials were for the use of rituximab (70%), followed by infliximab (12%) and tocilizumab (12%). Most of the denials (79%) were appealed successfully through a peer-to-peer discussion. In five cases, the insurer’s preferred drug (for example, adalimumab) had to be used rather than the requested infusion (for example, infliximab).

Infused medications, many of which are biologics, are among the most expensive drugs prescribed for patients with rheumatic diseases. They were easiest for Dr. Wallace to study because of the way prior authorizations are handled in his unit, but prior authorization requirements are “widespread” in rheumatology practices across treatment types, he and Dr. Phillips said.

“Some of our relatively inexpensive treatments are subject to prior authorization requirements,” Dr. Phillips said. “We hear stories about prednisone needing a prior authorization sometimes.”

With respect to infusible medications, the insurance subcommittee is hearing from ACR members about seemingly increasing numbers of both clinical coverage reviews – for example, reviews of prior treatments – and site-of-care restrictions, Dr. Phillips noted. “Some carriers are insisting on infusions in non-hospital-based settings, for cost savings, or on home infusions, which are concerning because of [possible] infusion reactions and medical service availability.”

The application of step therapy to rheumatologic patients is troubling because of the “often unique medical circumstances of the patient,” Dr. Phillips said. “There are enough differences among the [tumor necrosis factor] antagonists, for instance, that make one more appropriate for a certain patient than another. Those differences are not brought into consideration with these policies.”

There are other ways in which prior authorization processes “are not well informed medically,” he said, recalling a case brought to the attention of the subcommittee in which a patient prescribed a biologic drug for psoriatic arthritis was denied authorization because “the documentation did not include a [disease activity measure] that is specific to RA and not used for psoriatic arthritis.”

It is not uncommon for authorizations for infusible medications to take 2 weeks or longer to secure – even when initially approved. In the AMA’s 2018 Prior Authorization Physician Survey, 65% reported waiting at least 1 business day for a decision and 26% reported waiting at least 3 business days for responses. “With infusibles, we’re absolutely dealing with a much longer time,” Dr. Phillips said.

In Dr. Wallace’s study, the finding that prior authorizations facilitated greater prednisone-equivalent glucocorticoid exposure is important, he and his colleagues wrote, because these medications may put patients at higher risk of infection, cardiovascular disease, and diabetes – even in low doses and with short-term use. Notably, the median delay to the initiation of treatment was 29 days, regardless of prior authorization requirements. Dr. Wallace said the delays “likely reflect a combination of factors” – including infusion center waiting lists and patient-level factors – and that his team is “thinking about how to facilitate better access [to their practice’s infusion center] for those who are approved for treatment.”

The most common conditions for which infused medication was ordered were inflammatory arthritis (32%), vasculitis (23%), and IgG4-related disease (17%). The 225 patients in the study had an average age of 53 years.

Dr. Wallace reported that he has no relevant financial disclosures.

SOURCE: Wallace ZS et al. Arthritis Care Res. 2019 Sep 10. doi: 10.1002/acr.24062.

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