Bezafibrate shows promise as second-line option for PBC

The BEZURSO study findings “merit cautious excitement,” Elizabeth J. Carey, MD, wrote in an editorial.

“This pivotal trial effectively doubles the limited options for second-line therapy of primary biliary cholangitis,” she said.

Approximately 40% of primary biliary cholangitis patients fail to respond adequately to ursodeoxycholic acid, the first-line therapy, and they remain at risk for progression of liver disease and liver failure, wrote Dr. Carey. Bezafibrate is the first drug to generate improvement in these patients not only in measures of biochemical markers, but also measures of fibrosis and disease symptoms, she said. Patient reports of reduced itching and lower levels of fatigue are worth noting, although they were not the primary outcomes, said Dr. Carey.

“Improvement in patient-reported outcomes prompts the question of whether there is a role for the use of bezafibrate for the management of fatigue or pruritus, even in patients who have a biochemical response to ursodeoxycholic acid,” she noted (N Engl J Med. 2018 June 6. doi: 10.1056/NEJMe1804945).

Despite the promising results, challenges remain for primary biliary cholangitis patients, as approximately 70% did not meet the primary outcome, and those with more severe disease were less likely to respond, Dr. Carey said. However, she added, any agent “that both delays disease progression and alleviates symptoms is a potential boon for patients with the debilitating symptoms of primary biliary cholangitis.”

Dr. Carey is affiliated with the Mayo Clinic in Phoenix, Ariz. Disclosure forms provided by the author are available at NEJM.org.