Bimekizumab impact on patient-reported outcomes in patients with moderate to severe hidradenitis suppurativa: Pooled Week 48 results from BE HEARD I&II

Abstract

Introduction: Hidradenitis suppurativa (HS) has substantial negative effects on patients’ lives,¹ with debilitating symptoms, such as intense pain/fatigue/draining and odor, which lead to overall low quality of life (QoL).^1,2 Bimekizumab (BKZ) is a humanized IgG1 monoclonal antibody that selectively inhibits interleukin (IL)-17F in addition to IL-17A; clinical efficacy was previously shown in the phase 3 BE HEARD I&II trials.³ Here, the impact of BKZ on patient-reported outcomes (PROs) in patients with moderate to severe HS in BE HEARD I&II is reported.

Procedure/Study: Pooled data included an initial (Weeks [Wks]0–16) and maintenance (Wks16–48) treatment period. Patients were randomized 2:2:2:1 (initial/maintenance) to BKZ 320 mg every 2 wks (Q2W)/Q2W, BKZ Q2W/ Q4W, BKZ Q4W/Q4W or placebo (PBO)/BKZ Q2W. HS Symptom Questionnaire (HSSQ; each symptom item scored 0–10) mean values are reported to Wk48 for skin pain, itch, smell/odor, and drainage/oozing. Proportions of patients achieving minimal clinically important difference (MCID) for Dermatology Life Quality Index (DLQI; scored 0–30; improvement from baseline score ≥4) were reported at Wk16 and Wk48. Data are reported as observed case.

Results: Overall, 1,014 patients were randomized to BKZ Q2W/Q2W (N=288), BKZ Q2W/Q4W (N=292), BKZ Q4W/Q4W (N=288), PBO/BKZ Q2W (N=146). Within each HSSQ item, similar baseline scores were observed across treatment groups. At Wk16, for skin pain, itch, smell/odor and draining/oozing, greater improvements (i.e. score reduction) from baseline were seen in BKZ- vs PBO-treated patients. HSSQ item scores were substantially reduced from Wk16 to Wk48 in Wk16 PBO/BKZ switchers, further decreases were observed in those continually treated with BKZ. At Wk16, a greater proportion of BKZ- vs PBO-treated patients achieved MCID in DLQI: BKZ Q2W/Q2W, 64.6%; BKZ Q2W/Q4W, 54.9%; BKZ Q4W/Q4W, 63.5% vs PBO, 49.1%. At Wk48, a greater proportion of patients continually treated with BKZ achieved MCID in DLQI vs at Wk16; Wk16 PBO/BKZ switchers attained similar proportions (BKZ Q2W/Q2W: 73.4%; BKZ Q2W/Q4W: 63.5%; BKZ Q4W/Q4W: 74.5%; PBO/BKZ Q2W: 76.5%).

Conclusion: At Wk16, BKZ-treated patients achieved a reduction from baseline of HS symptoms: skin pain, itch, smell/odor, and drainage/oozing. Clinically meaningful health-related QoL improvements from baseline were observed and maintained/slightly improved through Wk48. PBO/BKZ switchers experienced improvements in PRO responses from Wk16 to Wk48 and achieved comparable outcomes at Wk48 to patients continually treated with BKZ.