SAN DIEGO — , but late-breaker data presented at the annual meeting of the American Academy of Dermatology show that these types of responses are sustained for as long as patients have remained on therapy.
Of the two, the longer follow up is with the IL-17 inhibitor bimekizumab (Bimzelx). In a 4-year open-label extension study, the Psoriasis Area and Severity Index (PASI) 90 rate was approximately 85% in treated patients, according to Mark Lebwohl, MD, professor and chairman emeritus of the Department of Dermatology, Icahn School of Medicine at Mount Sinai in New York City
A PASI 90 score signifies that 90% of skin surface area is cleared. The proportion of patients who achieved a PASI 100 score, signifying total clearance, approached 70% at 4 years in the group with the greatest response. PASI 90 and PASI 100 rates at this point were only modestly lower than those reported at the end of the double-blind phase 3 trial when evaluated 3 years earlier.
Follow-up with a novel oral anti-IL-23 inhibitor JNJ-2113 (JNJ-77242113) was only 52 weeks, far shorter. But again, the response for the most effective dose at the end of this period was essentially unchanged from that at 16 weeks. Among those on the highest and most effective test dose of once-daily 100 mg, the PASI 90 at 1 year was 64.3%, a rate that was essentially unchanged from week 16.
No Apparent Loss of Benefit Over Time
“We can really look at those dose-response curves and see that there is, overall, a maintenance of response,” reported Laura K. Ferris, MD, PhD, professor and director of clinical trials, Department of Dermatology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania. In her presentation of the data, she showed similar sustained control for the most effective doses of JNJ-2113 for multiple clinical outcomes, including an investigator’s global assessment (IGA) score of 0 or 1, also signifying clear or near clear skin.
Bimekizumab, a monoclonal antibody that inhibits both IL-17A and IL-17F, is already approved for the treatment of plaque psoriasis. The 52-week BE SURE trial, which provided the 478 patients who entered into the BE BRIGHT open label extension study, was published in The New England Journal of Medicine in July 2021.
In the 4-year data reported by Dr. Lebwohl, three groups were compared: Those initially randomized to an every-4-week dosing schedule of bimekizumab over the course of the 52-week BE SURE trial; those randomized to an every-4-week bimekizumab schedule who were then subsequently switched to an every-8-week schedule; and those initiated on the TNF-inhibitor adalimumab (Humira) and were then switched at week 24 to every-4-week bimekizumab.
The PASI 90 responses at 52 weeks in these three groups, respectively, were 91.2%, 89.3%, and 95.2%. At 4 years, this almost clear response was observed in 82.4%, 83.2%, and 87.6%, respectively. At 52 weeks, the PASI 100 responses in these three groups, respectively, were 75.3%, 74.2%, and 72.9%. At 4 years, 61.9%, 58.5%, and 69.5% still had complete skin clearance.
Bimekizumab was well tolerated during the randomized trial, reported Dr. Lebwohl. The rates of nasopharyngitis and oral candidiasis, which were observed in approximately 12% and 8%, respectively, of treated patients during the randomized phase remained at about the same level in the long-term follow up. There were no new safety signals, he said.