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In some patients with chronic obstructive pulmonary disease (COPD), type 2 inflammation may increase exacerbation risk and may be indicated by elevated blood eosinophil counts. Dupilumab, a fully human monoclonal antibody, blocks the shared receptor component for interleukin-4 and interleukin-13, key drivers of type 2 inflammation. In a phase 3, double-blind, randomized trial, we assigned patients with COPD who had a blood eosinophil count of at least 300 per microliter and an elevated exacerbation risk despite the use of standard triple therapy to receive dupilumab (300 mg) or placebo subcutaneously once every 2 weeks. The primary end point was the annualized rate of moderate or severe exacerbations of COPD. Key secondary and other end points that were corrected for multiplicity were the change in the prebronchodilator forced expiratory volume in 1 second (FEV ) and in the scores on the St. George's Respiratory Questionnaire (SGRQ; range, 0 to 100, with lower scores indicating a better quality of life) and the Evaluating Respiratory Symptoms in COPD (E-RS-COPD; range, 0 to 40, with lower scores indicating less severe symptoms). A total of 939 patients underwent randomization: 468 to the dupilumab group and 471 to the placebo group. The annualized rate of moderate or severe exacerbations was 0.78 (95% confidence interval [CI], 0.64 to 0.93) with dupilumab and 1.10 (95% CI, 0.93 to 1.30) with placebo (rate ratio, 0.70; 95% CI, 0.58 to 0.86; P<0.001). The prebronchodilator FEV increased from baseline to week 12 by a least-squares (LS) mean of 160 ml (95% CI, 126 to 195) with dupilumab and 77 ml (95% CI, 42 to 112) with placebo (LS mean difference, 83 ml; 95% CI, 42 to 125; P<0.001), a difference that was sustained through week 52. At week 52, the SGRQ score had improved by an LS mean of -9.7 (95% CI, -11.3 to -8.1) with dupilumab and -6.4 (95% CI, -8.0 to -4.8) with placebo (LS mean difference, -3.4; 95% CI, -5.5 to -1.3; P = 0.002). The E-RS-COPD score at week 52 had improved by an LS mean of -2.7 (95% CI, -3.2 to -2.2) with dupilumab and -1.6 (95% CI, -2.1 to -1.1) with placebo (LS mean difference, -1.1; 95% CI, -1.8 to -0.4; P = 0.001). The numbers of patients with adverse events that led to discontinuation of dupilumab or placebo, serious adverse events, and adverse events that led to death were balanced in the two groups. Among patients with COPD who had type 2 inflammation as indicated by elevated blood eosinophil counts, those who received dupilumab had fewer exacerbations, better lung function and quality of life, and less severe respiratory symptoms than those who received placebo. (Funded by Sanofi and Regeneron Pharmaceuticals; BOREAS ClinicalTrials.gov number, NCT03930732.).

Prurigo nodularis (PN) is a chronic inflammatory skin disease with intensely pruritic nodules. The LIBERTY-PN PRIME and PRIME2 phase 3 trials enrolled adults with PN with ≥20 nodules and severe itch uncontrolled with topical therapies. Dupilumab, a fully human monoclonal antibody, blocks the shared receptor component for interleukin (IL)-4 and IL-13. Patients were randomized 1:1 to 300 mg dupilumab or placebo subcutaneously every 2 weeks for 24 weeks. The primary endpoint was pruritus improvement, measured by proportion of patients with a ≥4-point reduction in Worst Itch Numeric Rating Scale (WI-NRS) from baseline at week 24 (PRIME) or week 12 (PRIME2). Key secondary endpoints included nodule number reduction to ≤5 at week 24. PRIME and PRIME2 enrolled 151 and 160 patients, respectively. Both trials met all the pre-specified primary and key secondary endpoints. A ≥4-point WI-NRS reduction at week 24 in the dupilumab and placebo arms was achieved by 60.0% and 18.4% of patients, respectively, in PRIME (95% confidence interval (CI), 27.8–57.7 for the difference, P  < 0.001) and at week 12 by 37.2% and 22.0% of patients, respectively, in PRIME2 (95% CI, 2.3–31.2; P  = 0.022). Dupilumab demonstrated clinically meaningful and statistically significant improvements in itch and skin lesions versus placebo in PN. Safety was consistent with the known dupilumab safety profile. ClinicalTrials.gov identifiers: NCT04183335 and NCT04202679 . In the LIBERTY-PN PRIME and PRIME2 phase 3 trials, dupilumab, a monoclonal antibody that blocks IL-4 and IL-13 signaling, significantly reduced itch and skin lesions in patients with prurigo nodularis, a chronic inflammatory skin disease.

Patients who used oral glucocorticoids for asthma were able to reduce the dose of treatment more successfully when dupilumab, a monoclonal antibody targeting signaling through the interleukin-4 and interleukin-13 receptor, was added to their regimen than when placebo was added.

In two 16-week, placebo-controlled trials enrolling adults with moderate-to-severe atopic dermatitis, dupilumab, a human monoclonal antibody against interleukin-4 receptor alpha, was effective in controlling the signs and symptoms of atopic dermatitis. Atopic dermatitis is a chronic, relapsing inflammatory skin disease that is characterized by the up-regulation of type 2 immune responses (including those involving type 2 helper T cells), 1 , 2 an impaired skin barrier, and increased Staphylococcus aureus colonization. 3 , 4 In patients with moderate-to-severe atopic dermatitis, skin lesions can encompass a large body-surface area and are frequently accompanied by intense, persistent pruritus, which leads to sleep deprivation, symptoms of anxiety or depression, and a poor quality of life. 5 – 7 For patients with moderate-to-severe atopic dermatitis, topical therapies have limited efficacy, and systemic treatments are associated with substantial toxic effects. Thus, there . . .

An antagonist (MK-7123) of the cytokine receptor CXCR2 reduces neutrophil chemotaxis and thus may alleviate airway inflammation in chronic obstructive pulmonary disease (COPD). To assess the efficacy, safety, and tolerability of three dose levels of MK-7123, compared with placebo, in patients with moderate to severe COPD. This 6-month, double-blind study randomized patients with moderate to severe COPD (already on standard therapy) to daily MK-7123 at 10, 30, or 50 mg or placebo. The primary endpoint was change from baseline in post-bronchodilator FEV1. A total of 616 patients (71% male; mean age, 63 yr; 45% current smokers; baseline FEV1 [SD], 1.43 L [0.45]; mean FEV1 percent predicted, 43.9%) were randomized. Only MK-7123 50 mg led to significant improvement in FEV1 over placebo (mean difference [SE], 67 ml [32]). Reduced sputum neutrophil count was observed among the 122 patients examined; P = 0.003 (3 mo) and P = 0.092 (6 mo) (MK-7123 50 mg vs. placebo). The stratum of current smokers, but not that of nonsmokers, showed significant improvement versus placebo in FEV1 (168 ml) and time-to-first exacerbation, and showed numerical improvement in St. George's Respiratory Questionnaire for COPD score. MK-7123 caused a dose-dependent decrease in absolute neutrophil count (ANC) and reduced inflammatory biomarkers matrix metallopeptidase-9 and myeloperoxidase in plasma and sputum; ANC lower than 1.5 × 10(9)/L led to discontinuations with higher doses of MK-7123 (18% in the MK-7123 50-mg group vs. 1% in placebo). Plasma C-reactive protein and fibrinogen increased with MK-7123 treatment. Rates of infections at 6 months were similar in all groups. Treatment with MK-7123 50 mg versus placebo led to significant improvement in FEV1 in patients with COPD, suggesting clinically important antiinflammatory effects with CXCR2 antagonism, although dose-related discontinuations were observed because of ANC decreases with MK-7123. Greater response was observed in smokers versus ex-smokers. Clinical trial registered with www.clinicaltrials.gov (NCT 01006616).

Lunsekimig is a novel, bispecific NANOBODY® molecule that inhibits both thymic stromal lymphopoietin (TSLP) and interleukin (IL)‐13, two key mediators of asthma pathophysiology. In this first‐in‐human study, we evaluated the safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD), and immunogenicity of lunsekimig in healthy adult participants. Participants received single ascending doses (SAD) of lunsekimig (10–400 mg intravenous [IV] or 400 mg subcutaneous [SC]) (SAD part) or multiple ascending doses (MAD part) of lunsekimig (100 or 200 mg, every 2 weeks [Q2W] for three SC doses), or placebo. Overall, 48 participants were randomized 3:1 in the SAD part and 4:1 in the MAD part for lunsekimig or placebo. The primary endpoint was safety and tolerability. The secondary endpoints included PK, antidrug antibodies (ADAs) and total target measurement. Lunsekimig was well tolerated and common treatment‐emergent adverse events were COVID‐19, nasopharyngitis, injection site reactions, and headache. Lunsekimig showed dose‐proportional increases in exposure and linear elimination. Mean t1/2z of lunsekimig was around 10 days across all IV and SC doses of the SAD and MAD parts of the study. Increases in the serum concentration of total TSLP and IL‐13 for lunsekimig versus placebo indicated target engagement. ADA of low titers were detected in four (11.1%) participants who received lunsekimig in the SAD, and seven (43.8%) in the MAD. In conclusion, lunsekimig was well tolerated in healthy participants with a linear PK profile up to single 400 mg IV and SC dose and multiple doses of 100 and 200 mg SC Q2W, with low immunogenicity.

Background Targeting receptor-interacting serine/threonine protein kinase 1 could mitigate the devastating sequelae of the hyperinflammatory state observed in severe cases of COVID-19. This study explored the immunomodulatory and clinical effects of the receptor-interacting serine/threonine protein kinase 1 inhibitor SAR443122 (eclitasertib) in patients with severe COVID-19. Methods In this Phase 1b, double-blinded, placebo-controlled study (NCT04469621) a total of 82 patients were screened, of whom 68 patients were eligible and randomized (2:1) to receive eclitasertib 600 mg (300 mg twice daily) or placebo up to 14 days. Primary outcome was relative change in C-reactive protein from baseline to Day 7. Time to clinical improvement using 7-point ordinal scale, ventilator/respiratory failure-free days, change in SpO 2 /FiO 2 ratio, and biomarkers of severe COVID-19 were explored. Results Geometric mean ratio (point estimate [90% confidence interval]) of the relative change from baseline in C-reactive protein with eclitasertib vs. placebo on Day 7 was 0.85 (0.49–1.45; p  = 0.30). Median time to 50% decrease in C-reactive protein from baseline was 3 days vs. 5 days ( p  = 0.056) with eclitasertib vs. placebo. Median time to ≥ 2-point improvement on 7-point clinical symptoms scale was 8 days vs. 10 days with eclitasertib vs. placebo ( p  = 0.38). Mean ventilator/respiratory failure-free days, change in baseline-adjusted SpO 2 /FiO 2 ratio, and clinical biomarkers showed consistent numerical improvements with eclitasertib vs. placebo. The most frequently reported treatment-emergent adverse events were gastrointestinal disorders and condition aggravated/worsened COVID-19 pneumonia. Conclusions Eclitasertib was well tolerated with consistent trends toward more rapid resolution of inflammatory biomarkers and clinical improvement in severe COVID-19 patients than placebo. ClinicalTrials.gov identifier NCT04469621, first posted on clinicaltrials.gov on July 14, 2020.

Background Poor adherence with prescribed asthma medication is a major barrier to positive treatment outcomes. This study was designed to determine the effect of a once-daily administration of mometasone furoate administered via a dry powder inhaler (MF-DPI) on treatment adherence compared with a twice-daily administration. Methods This was a 12-week open-label study designed to mimic an actual clinical setting in patients ≥12 years old with mild-to-moderate persistent asthma. Patients were randomized to receive MF-DPI 400 μg once-daily in the evening or MF-DPI 200 μg twice-daily. Adherence was assessed primarily using the number of actual administered doses reported from the device counter divided by the number of scheduled doses. Self-reports were also used to determine adherence. Health-related quality of life, healthcare resource utilization, and days missed from work or school were also reported. Results 1233 patients were randomized. The mean adherence rates, as measured by the automatic dose counter, were significantly better ( P < 0.001) with MF-DPI 400 μg once-daily in the evening (93.3%) than with MF-DPI 200 μg twice-daily (89.5%). Mean adherence rates based on self-reports were also significantly better ( P < 0.001) with MF-DPI 400 μg QD PM (97.2%) than with MF-DPI 200 μg twice-daily (95.3%). Adherence rates were lower in adolescents (12-17 years old). Health-related quality of life improved by 20% in patients using MF-DPI once-daily in the evening and by 14% in patients using MF-DPI twice-daily. Very few (<8%) patients missed work/school. Conclusion Mean adherence rates were greater with a once-daily dosing regimen of MF-DPI than with a twice-daily dosing regimen. This trial was completed prior to the ISMJE requirements for trial registration.

The Phase 3 LIBERTY ASTHMA QUEST study in patients aged ≥12 years with uncontrolled, moderate-to-severe asthma demonstrated the efficacy and safety of dupilumab 200 mg and 300 mg every 2 weeks (q2w) vs matched placebo in the overall population. This post hoc analysis assessed dupilumab efficacy by disease severity as evidenced by baseline % predicted forced expiratory volume in 1 second (FEV ) and dose of inhaled corticosteroids (ICS). Severe asthma exacerbation rates, change from baseline in FEV , asthma control, quality of life, and fractional exhaled nitric oxide (FeNO) levels over the 52-week treatment period were assessed in patients with elevated type 2 inflammation biomarkers stratified by ICS dose and FEV % predicted at baseline. In patients with elevated baseline eosinophils, dupilumab 200 mg and 300 mg q2w vs placebo reduced severe exacerbation rates by 50% ( =0.06) and 67% ( =0.001), respectively, in those with medium-dose ICS/FEV % predicted 60-90%, and by 59% ( <0.001) and 47% ( =0.006) in those with high-dose ICS/FEV % predicted <60%, improved pre-bronchodilator FEV at Week 12 by 0.16L ( =0.005) and 0.08L ( =0.13), and by 0.20L ( =0.003) and 0.21L ( <0.001), respectively, in the same subgroups. Dupilumab vs placebo also improved asthma control and quality of life and suppressed FeNO levels in all patient subgroups with similar results observed irrespective of baseline biomarker status or disease severity. Dupilumab reduced severe exacerbations and improved lung function, asthma control and quality of life in patients with elevated baseline eosinophils irrespective of baseline ICS dose or FEV % predicted.

Treatment of uncontrolled asthma with dupilumab, an anti–interleukin-4 and anti–interleukin-13 receptor monoclonal antibody, in addition to usual therapy, led to a rate of severe exacerbations that was approximately 50% lower than the rate with placebo.