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IntroductionAtopic dermatitis (AD) is a chronic inflammatory skin disorder with limited treatment options for adolescents with moderate-to-severe disease. Lebrikizumab, a monoclonal antibody targeting interleukin (IL)-13, demonstrated clinical benefit in previous Phase 3 trials: ADvocate1 (NCT04146363), ADvocate2 (NCT04178967), and ADhere (NCT04250337). We report 52-week safety and efficacy outcomes from ADore (NCT04250350), a Phase 3, open-label study of lebrikizumab in adolescent patients with moderate-to-severe AD. The primary endpoint was to describe the proportion of patients who discontinued from study treatment because of adverse events (AEs) through the last treatment visit.MethodsAdolescent patients (N = 206) (≥ 12 to

Introduction/Background Lebrikizumab demonstrated robust efficacy as monotherapy for moderate-to-severe atopic dermatitis (AD) in two Phase 3, randomized, double-blind, placebo-controlled, 52-week trials, ADvocate1 (NCT04146363) and ADvocate2 (NCT04178967) (Silverberg, et al. N Engl J Med 2023;388:1080-91; Blauvelt, et al. Br J Dermatol 2023; 188:740–748). Among lebrikizumab responders at the end of the 16-Week induction period, EASI 75 was maintained in 82% of patients treated with continuous lebrikizumab every 4 weeks (Q4W) and by 66% of the patients in the lebrikizumab withdrawal arm at Week 52. Objectives To better understand the relationship between lebrikizumab serum concentration levels and sustained clinical response after treatment cessation in a subpopulation of lebrikizumab responders who discontinue treatment. Methods In ADvocate1 and ADvocate2, patients received 500-mg loading doses at Week 0 and Week 2, followed by 250-mg doses every two weeks (Q2W) from Week 4 to Week 14 of the induction period. At Week 16, lebrikizumab responders were re-randomized 2:2:1 to receive lebrikizumab 250 mg Q2W, lebrikizumab 250 mg Q4W or placebo Q2W (lebrikizumab withdrawal). Patients in the current analysis included lebrikizumab responders who were withdrawn from treatment and maintained EASI 90 for 80% of the visits during the withdrawal period, achieved EASI 90 at the Week-52 visit, and did not use rescue medication with data pooled from ADvocate1 and ADvocate2. From Weeks 16 to 52, EASI was assessed every 4 weeks. Lebrikizumab serum concentration levels were measured at Weeks 16, 32, and 52. We evaluated the mean serum concentrations over time; the reduction in the lebrikizumab concentrations; and the number of half-lives during the withdrawal period, as calculated by a population pharmacokinetic (popPK) model-estimated half-life. Results 17 patients (28%) of the 60 lebrikizumab responders who were withdrawn from treatment maintained EASI 90 for 80% of the visits during the 38-week withdrawal period, achieved EASI 90 at Week 52, and did not use rescue medication. Withdrawal-period pharmacokinetic data were available from 16 of these 17 patients. At Week 16, the mean (SD) serum lebrikizumab concentration was 92.4 (29.9) μg/mL. The mean (SD) serum concentrations decreased to 7.3 (14.0) μg/mL at Week 32 and 0.15 (0.20) μg/mL at Week 52, representing 92% and >99% reductions, respectively. At Week 52, 12 of the 16 patients had serum concentrations below the lower level of quantification (LLOQ: 0.09 μg/mL) for the clinical assay. In the popPK analysis, the mean elimination half-life for lebrikizumab was approximately 24.5 days. Lebrikizumab, therefore, had undergone approximately 5 half-lives at Week 32 and 10.9 half-lives at Week 52; it should be noted 5 to 7 half-lives for a biologic are often considered for a washout period (Evans. J Exp Stroke Transl Med 2010; 9:8-18). Conclusions In this analysis from ADvocate1 and ADvocate2, a subset of patients who were randomly withdrawn from lebrikizumab maintained a stable EASI 90 response up to Week 52 with negligible remaining lebrikizumab serum concentrations. This is the first analysis that could provide additional insights into lebrikizumab therapy-free remission. Further studies are needed to identify and characterize this subpopulation of AD patients and lebrikizumab's potential disease-modifying properties. [ABSTRACT FROM AUTHOR]

Introduction In ADvocate1 (NCT04146363) and ADvocate2 (NCT04178967), lebrikizumab demonstrated statistical superiority vs. placebo in patients with moderate-to-severe atopic dermatitis (AD). The objective of this analysis is to test for correlations between improvements in clinical outcomes and reductions in AD-relevant serum biomarkers during ADvocate1 and ADvocate2. Objectives To assess the correlation between clinical measures of atopic dermatitis (AD) and AD-specific biomarkers at baseline; and to assess the correlation between clinical measures of AD and changes in AD-specific biomarkers after treatment with lebrikizumab. Methods Full details of these studies were previously reported. Protein biomarkers were determined in available serum samples from patients receiving lebrikizumab 250 mg every 2 weeks (n=72) or placebo (n=36). Tested biomarkers included: IL-13 (baseline only), CCL2, CCL4, CCL11, CCL13, CCL17 (TARC), CCL22, CCL26 (eotaxin-3), CXCL10, total IgE, IL-4, IL-5, and periostin. Baseline biomarker levels and baseline clinical endpoints were compared using a Spearman correlation. A repeated measures correlation analysis was used to characterize paired measurement of within-patient biomarker levels and clinical endpoints at baseline, week 4, week 16, and week 52. Clinical measures of AD included Investigator's Global Assessment (IGA), Eczema Area and Severity Index (EASI), and Pruritus Numeric Rating Scale (NRS). Results At baseline, EASI score was positively correlated with IL-13, periostin, IL-5, IgE, CCL13, CCL17, CCL22 and CCL26 (correlation coefficient>0.3, p<0.05), but not IL-4. During the studies, improvements in EASI, IGA, and Pruritus NRS were each correlated with reductions in periostin, CCL13, CCL17, CCL22, and CCL26 (correlation coefficient>0.3, p<0.05). Improvement in IGA was also correlated with a reduction in IgE (correlation coefficient>0.3, p<0.05). Conclusions Clinical measures of improvement in the signs and symptoms of AD are correlated with reductions in AD biomarkers in patients treated with lebrikizumab. [ABSTRACT FROM AUTHOR]

Expert Interview Asthma Keywords: Keywords: Asthma; biologics; biomarkers; humanized monoclonal antibody; interleukin-13; lebrikizumab EN Asthma biologics biomarkers humanized monoclonal antibody interleukin-13 lebrikizumab Asthma is a heterogeneous disease with notable variationin its clinical course and response to treatment. It will be important todetermine the differences in response to the various asthma biologicsamong patients with severe asthma to develop a precision medicineapproach to management. Figure 1: Asthma biomarker level results from theLAVOLTA I study that assessed the use oflebrikizumab in patients with severe asthma Figure provided by Roche (Basel, Switzerland). [Extracted from the article]

Introduction Integrated safety data for lebrikizumab (LEB) treatment in moderate-to-severe atopic dermatitis (AD) has been previously published. Conjunctivitis and keratitis were identified as adverse events (AEs) of special interest in the AD program. Objectives: Further characterize patient-reported conjunctivitis and keratitis AEs in LEB clinical trials for AD. Methods: Data from adult and adolescent patients were analyzed in 2 groups: a) LEB 250mg every 2 weeks (LEBQ2W, N=783) vs placebo (PBO, N=404), weeks 0-16 (PC 0-16wk) from 4 clinical trials (ADvocate1, ADvocate2, ADhere, Phase 2b study); and b) patients who received at least one dose of LEB (ALL-LEB, N=1720) from 8 clinical trials (ADvocate1, ADvocate2, ADhere, ADore, ADjoin (ongoing), ARBAN, TREBLE, Phase 2b study). Conjunctivitis and keratitis refer to cluster definitions defined by MedDRA preferred terms conjunctivitis, allergic conjunctivitis, bacterial conjunctivitis, viral conjunctivitis, giant papillary conjunctivitis; and keratitis, atopic keratoconjunctivitis, allergic keratitis, ulcerative keratitis, vernal keratoconjunctivitis, respectively. Exposure adjusted incidence rates (IR) are provided as per 100 patientyears. Results: In PC 0-16wk, at baseline, similar proportions of LEB (21.5%) and PBO (19.3%) patients had medical history (MH) of conjunctivitis. Of ALL-LEB, 22.2% had MH of conjunctivitis; of those with conjunctivitis or keratitis AE, 40% had MH of conjunctivitis. In PC 0-16wk, conjunctivitis cluster was reported by 8.5% (IR:30.6) LEBQ2W vs 2.5% (IR:8.9) PBO; keratitis cluster was reported by 0.6% (IR:2.2) and 0.3% (IR:0.9) of patients, respectively. All conjunctivitis and keratitis events in PC 0-16wk were mild or moderate in severity; 5 events (3 conjunctivitis, 2 keratitis) led to treatment discontinuation (LEBQ2W) vs 1 conjunctivitis event (PBO). ALL-LEB treatment duration ranged from 1 dose to 100 weeks. In ALL-LEB, conjunctivitis cluster was reported by 10.6% (IR:12.2), with the majority being mild or moderate (10.3%) and 0.3% severe. Keratitis was reported by 0.5% (IR:0.6), with 1 severe event of vernal keratoconjunctivitis. Conjunctivitis and keratitis events resulted in 17 (1.0%) and 3 (0.2%) treatment discontinuations, respectively. Similar proportions of adult (11.3%; 0.6%) and adolescent (8.3%; 0.3%) patients reported conjunctivitis and keratitis events. The majority were reported within first 16 weeks of treatment. Conclusions: Conjunctivitis is an AE reported by LEB-treated patients. Patients with MH of conjunctivitis may have higher risk of developing treatment-emergent conjunctivitis or keratitis. Most events were mild or moderate in severity, did not lead to treatment discontinuation, were reported within first 16 weeks of treatment, and IR did not increase with longer duration of exposure. [ABSTRACT FROM AUTHOR]

Introduction Lebrikizumab (LEB) is a monoclonal antibody (Ab) that has shown efficacy and safety in patients with moderate-tosevere atopic dermatitis (AD) in Phase 2/3 trials. LEB targets IL-13 and inhibits signaling of the IL-4Ra/IL-13Ra1 complex. The potential immunomodulator effect of LEB necessitates investigating its impact on immune responses. Objectives: To report the seroresponses to the Tdap (Diphtheria/Tetanus Toxoids/Pertussis) and MCV (Meningococcal (Groups A, C, Y, and W-135)) vaccines in LEB-treated and placebo (PBO)-treated adult patients (aged 18-15 years) with moderate-to-severe AD; and to compare the efficacy of LEB vs PBO in the treatment of AD. Methods: ADopt-VA was a US Phase 3, 16-week (W) randomized, double-blind, placebo-controlled study to assess LEB impact on vaccine immune responses in adult patients with moderate-to-severe AD. The primary endpoint was the immune response to 2 vaccines, the Tdap and MCV. LEB was given as a 500 mg loading dose at baseline and W2, followed by 250 mg LEB Q2W. At W12, both vaccines (Tdap and MCV) were administered to all patients, LEB group N=107, Placebo (PBO) group N=81. Immune responses were determined by Ab level differences between W12 and W16. Secondary efficacy endpoints at W16 were Investigator Global Assessment (IGA) and Eczema Area and Severity Index (EASI 75) scores. Results: For Tdap, 73.6% of LEB patients had a positive Ab response vs 73.4% for PBO, 90% CI, 0.3 (-10.2, 11.2). For MCV, LEB patients had an 86.9% positive Ab response vs 75.0% for PBO, 90% CI, 12.2 (2.5, 22.0). IGA (0,1) was achieved by 40.6% of LEB patients vs 18.9% receiving PBO (p=<0.001); EASI 75 was achieved by 58.0% and 32.7% (p<0.001), respectively. The safety profile was consistent with previous LEB trials. Conclusions: These data show that LEB does not negatively impact immune responses for Tdap or MCV vaccines in adults with moderate-to-severe AD. [ABSTRACT FROM AUTHOR]

LAVOLTA (L)I, LII and ACOUSTICS were randomized, placebo-controlled, double-blinded, Phase 3 trials of lebrikizumab, a monoclonal antibody targeting interleukin-13, in patients with uncontrolled asthma (LI, NCT01867125; LII, NCT01868061; ACOUSTICS, NCT01875003). These studies failed to provide consistently significant efficacy results in uncontrolled asthma. This study aims to report pooled safety analysis of lebrikizumab in patients during the 52-week placebo-controlled period from the three clinical trials. Adults in LI and LII, adolescents (12–17 years) in ACOUSTICS, with uncontrolled asthma, prebronchodilator forced expiratory volume in 1 s 40–90% predicted and stable background therapy were randomized 1 : 1 : 1 to lebrikizumab 125 or 37·5 mg or placebo (PBO) subcutaneously once every 4 weeks. Safety analyses were based on all patients who received at least one dose of study drug, with patients grouped by assigned treatment. Safety was assessed using summary of adverse events (AEs). The proportions of patients who experienced treatment-emergent AEs [combined lebrikizumab doses (LEB), 1281 (77%) of 1661 patients vs. PBO, 650 (78%) of 883 patients], serious AEs (7.6% vs. 8.5%) and AEs leading to study drug discontinuation (3.4% vs. 3.6%) were similar between LEB and PBO. One death occurred in the PBO group. Similar frequencies of key safety events, including conjunctivitis (LEB, 1.6%; PBO, 1.7%), infections and infestations (LEB, 51.6%; PBO, 50.7%), and eosinophil-related disorders (LEB, 0.2%; PBO, 0.2%) were noted; higher frequency of eosinophilia (>500 eosinophils/mm3) was reported (LEB, 1.1%; PBO, 0%). The safety profile was similar between lebrikizumab and placebo in adults and adolescents with uncontrolled asthma. [ABSTRACT FROM AUTHOR]

Lebrikizumab (LEB) is a monoclonal antibody that binds with high affinity to interleukin (IL)-13, thereby blocking the downstream effects of IL-13 with high potency. To report integrated safety information in adult and adolescent patients with moderate-to-severe atopic dermatitis treated with LEB, from an integrated safety analysis of eight clinical Phase 2 and 3 trials. These data include adult and adolescent patients who received at least one dose of study drug from a total of eight atopic dermatitis clinical trials: ADvocate1, ADvocate2, ADhere, ADore, ADjoin (ongoing), ARBAN, TREBLE and a Phase 2b study. Treatment duration ranged from a single dose to 100 weeks. This analysis includes all placebo-controlled Week 0- to 16-safety data in patients treated with LEB 250 mg every 2 weeks (LEBQ2W, n = 783) compared with placebo (n = 404) known as ALL PC Weeks 0–16, and all patients who received at least one dose of LEB (n = 1720) known as ALL LEB. Conjunctivitis cluster is defined by MedDRA-preferred terms of conjunctivitis, allergic conjunctivitis, bacterial conjunctivitis, viral conjunctivitis and giant papillary conjunctivitis. Exposure adjusted incidence rates (IR) are provided as per 100 patient-years. In ALL PC Weeks 0–16 analysis, the frequency of treatment-emergent adverse events (TEAE) was 49.2% in LEBQ2W (n = 384) compared with 53.1% in placebo (n = 215). The majority of TEAEs reported were mild or moderate in severity with 2.3% (n = 18) reported as severe in LEBQ2W and 4.4% (n = 18) in placebo. Serious adverse events (SAEs) were reported by 1.3% (n = 10) in LEBQ2W and 1.9% (n = 8) in placebo. No deaths reported in LEBQ2W and one death in placebo. The most frequently reported TEAE in LEBQ2W was conjunctivitis and in placebo was atopic dermatitis. Conjunctivitis cluster was reported by 8.5% (n = 67) in LEBQ2W and 2.5% (n = 10) in placebo. All conjunctivitis cluster events were mild or moderate. Injection site reactions (ISRs) were reported by 2.6% (n = 20) in LEBQ2W and 1.5% (n = 6) in placebo. Adverse events leading to discontinuation were reported by 2.3% (n = 18) in LEBQ2W and 1.4% (n = 6) in placebo. In ALL LEB, the frequency of TEAEs was 64.3% (n = 1106, IR: 137.9), with the majority being mild or moderate in severity. Severe TEAEs were reported by 5.3% (n = 91). The incidence rates of TEAE did not increase with duration of treatment exposure. The SAEs were reported by 3.3% (n = 56, IR: 3.5). Three (0.2%) deaths occurred in ALL LEB. Conjunctivitis cluster was reported by 10.6% (n = 183, IR:12.2) with the majority being mild or moderate in severity and 0.3% (n = 6) being reported as severe. The ISRs were reported by 3.1% (n = 53, IR: 3.3). Adverse events leading to discontinuation were reported by 4.2% (n = 73, IR: 4.5). The overall safety profile for lebrikizumab consisted of AEs that were mostly nonserious, mild or moderate in severity, and did not lead to treatment discontinuation. Safety profile was similar in both adults and adolescents. [ABSTRACT FROM AUTHOR]

Lebrikizumab (LEB) is a novel, high-affinity monoclonal anti - body that selectively binds to interleukin (IL)-13. To evaluate the efficacy and safety of LEB monotherapy in patients with moderate-to-severe atopic dermatitis (AD) in two identical phase 3 trials ADvocate1 (ADv1) and ADvocate2 (ADv2). Patients who responded to LEB 250 mg every 2 weeks (LEB Q2W) at the end of the 16-week induction period were re-randomized in a 2 : 2 :1 ratio to receive LEB Q2W, LEB 250 mg every 4 weeks (LEB Q4W) or placebo (LEB withdrawal) for an additional 36 weeks. Response, at week 16, was defined as achieving an IGA (0, 1) with a ≥2-point improvement or EASI75 and no use of rescue medication. Efficacy outcomes reported at week 52 included IGA (0, 1), EASI 75, ≥4-point reduction in Pruritis Numeric Rating Scale (NRS), EASI 90 and DLQI ≥4-point. Safety analysis was conducted on all patients who received ≥1 dose of LEB. Patients maintained IGA (0, 1) in LEB Q2W (ADv1, 75.8%; ADv2, 64.6%), LEB Q4W (ADv1, 74.2%; ADv2, 80.6%) and LEB withdrawal (ADv1, 46.5%; ADv2, 49.8%). Maintenance of EASI75 was, in LEB Q2W (ADv1, 79.2%; ADv2, 77.4%), LEB Q4W (ADv1, 79.2%; ADv2, 84.7%) and LEB withdrawal (ADv1, 61.3%; ADv2, 72.0%). For Pruritus NRS ≥4-point improvement from baseline, patients-maintained improvement in the LEB Q2W (ADv1, 81.2%; ADv2, 90.3%), LEB Q4W (ADv1, 80.4%; ADv2, 88.1%) and LEB withdrawal (ADv1, 65.4%; ADv2, 67.6%). Maintenance of EASI90 was, in LEB Q2W (ADv1, 66.1%; ADv2, 61.5%), LEB Q4W (ADv1, 66.6%; ADv2, 67.4%) and LEB withdrawal (ADv1, 45.5%; ADv2, 36.9%). DLQI ≥4-point improvement from baseline was LEB Q2W (ADv1, 64.0%; ADv2, 59.0%), LEB Q4W (ADv1, 62.7%; ADv2, 73.0%) and LEB withdrawal (ADv1, 57.7%; ADv2, 45.5%). TEAEs were reported by 58.1% (ADv1) and 67.8% (ADv2) LEB-treated patients at week 52. Serious adverse events were reported by 3.3% of ADv1 patients and 2.7% of ADv2 patients. In ADv1 and ADv2, 2.3% and 3.9% of patients reported an adverse event leading to treatment discontinuation, respectively. Both LEB Q2W and LEB Q4W maintained improvement in all reported outcomes for the treatment of moderate-to-severe AD through 52 weeks. The safety profile was consistent with previously published data. [ABSTRACT FROM AUTHOR]