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Introduction In multiple randomized controlled clinical trials, dupilumab demonstrated robust efficacy in patients with moderate-to-severe atopic dermatitis (AD). Long-term effectiveness of dupilumab in real-world AD treatment is one of the main objectives of the ongoing GLOBOSTAD study. Comprehensive data on Asian patients with moderate-to-severe AD treated with dupilumab are limited. Objectives: To report patient-reported outcomes and physician-assessed AD clinical measures to evaluate disease characteristics, severity, and treatment effectiveness 1 year after initiating dupilumab treatment in Asian patients. The baseline disease severity and patient demographics have been reported previously. Methods: This 5-year, multinational, multicentre, prospective, observational study (GLOBOSTAD; NCT03992417) included Asian patients ≥12 years-old with moderate-to-severe AD who initiated dupilumab treatment based on country-specific prescribing criteria. Eczema Area and Severity Index (EASI), Scoring Atopic Dermatitis (SCORAD), Patient-Oriented Eczema Measure (POEM), Peak Pruritus Numerical Rating Scale (PP-NRS) and Dermatology Life Quality Index (DLQI) were assessed at baseline, 3 months (± 1 month), 6 months (± 2 months), and 12 months (± 2 months). Data are reported as observed in patients self-reported as Asian for enrolment/safety (N = 204; data cutoff: March 2023) and follow-up (N = 194) populations. Results: During the study, EASI (>21 = severe; ≤7 = mild/no disease) score improved from 28.0 (12.1), mean (SD) at baseline to 7.4 (8.5) at 3 months, 5.7 (6.9) at 6 months, and was sustained until the end of observation period, 12 months, at 4.7 (7.1). Similarly, SCORAD (>50 = severe; <25 = mild/no disease) score improved from 61.5 (16.9) at baseline to 25.4 (16.6) at 3 months, 22.5(14.8) at 6 months, and further improved to 18.6 (13.3) at 12 months. During the study, patients also reported early improvements in POEM, mean (SD) from 19.1 (7.3) at baseline to 8.0 (5.8) at 3 months, 7.6 (5.5) at 6 months, and to 7.2 (5.0) at end of observation period (12 months); PP-NRS decreased from 5.7 (2.3) to 2.1 (2.2) to 1.7 (1.8), and to 1.4 (1.7) at 3 months, 6 months, and 12 months respectively; and DLQI improved from 13.2 (7.4) to 4.9 (4.6) to 4.0 (3.8), and to 4.1 (4.0) at 3 months, 6 months and 12 months respectively. Dupilumab-related adverse events were reported in 44 (21.5%) patients while 4 (2.0%) reported dupilumab-related severe adverse events. Conclusion In Asian patients, the initiation of dupilumab treatment led to early improvements in all AD outcome measures, sustained throughout the 1-year observational period. Safety and treatment effectiveness were consistent with overall population. [ABSTRACT FROM AUTHOR]

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 The GLOBOSTAD study aims to assess the extended realworld effectiveness of dupilumab in patients with atopic dermatitis (AD) receiving dupilumab as part of their normal care. Objectives: To report patient-reported outcomes and physician-assessed AD clinical measures for evaluating disease characteristics, severity, and treatment effectiveness 1 year after initiating dupilumab treatment. Methods: This 5-year, multinational, prospective, observational study (NCT03992417) enrolled patients aged =12 years with moderate-to-severe AD. Patients received dupilumab based on country-specific prescribing information. Assessments were performed at baseline, 3 months (± 1 month), 6 months (± 2 months), and 12 months (± 2 months). Data are reported as observed for enrollment/safety (N = 955; data cutoff: March 2023) and follow-up (N = 903) populations including 13 adolescent patients with AD (=12 and <18 years old). Results: In this study, 758/863/705 patients completed =1 follow-up assessment at 3 months/6 months/12 months, respectively. During the study the mean (standard deviation [SD]) Eczema Area and Severity Index (EASI; >21 = severe; =7 = mild/no disease) scores decreased from 25.1 (12.8) at baseline to 6.1 (8.0) at 3 months, 4.6 (6.4) at 6 months and sustaining throughout the observation period [12 months; 4.2 (8.4)]. Mean Patient-Oriented Eczema Measure (SD) improved from 19.7 (6.4) at baseline descending to 8.7 (6.6) at 3 months, 7.7 (6.0) at 6 months and 7.1 (5.8) at 12 months. A significant improvement was also observed in Dermatology Life Quality Index (DLQI) from 13.7 (7.1) to 5.3 (5.1) to 4.4 (4.4) to 3.9 (4.2); and children's DLQI from 12.2 (6.2) to 2.7 (2.9) to 2.9 (3.0) to 4.8 (4.8) by the end of the 3, 6 and 12-months observational period respectively. Dupilumab-related adverse events were reported in 187 (20.8%) patients. Conclusions: In a real-world scenario, the initiation of dupilumab treatment led to early and sustained improvements in AD outcome measures throughout the 1-year observational period. Safety data remained consistent with findings from previous studies. [ABSTRACT FROM AUTHOR]

Introduction & Objectives: Upadacitinib (UPA) is an oral Janus kinase 1 (JAK1) inhibitor approved in multiple countries for the treatment of adolescents and adults with moderate-to-severe atopic dermatitis (AD). Here, we present the efficacy and safety of UPA administered over 140 weeks in an ongoing randomized, double-blinded, multicenter phase 3 study (Measure Up 1, NCT03569293). Materials & Methods: Patients (12-75 years) with moderate-to-severe AD were randomized 1:1:1 to receive UPA 15 mg (UPA15), UPA 30 mg (UPA30), or placebo (PBO) once daily at baseline. At week 16, PBO-treated patients were re-randomized 1:1 to receive UPA15 (PBO/UPA15) or UPA30 (PBO/UPA30) once daily. Co-primary endpoints were the proportion of patients achieving ≥75% reduction in EASI (EASI 75) from baseline and vIGA-AD of clear (0) or almost clear (1) with ≥2 grades of reduction from baseline (vIGA-AD 0/1) at week 16. A meaningful improvement in itch, defined as a ≥4-point reduction in Worst Pruritus Numeric Rating Scale (ΔWP-NRS≥4), was assessed among patients with baseline WP-NRS≥4. All efficacy endpoints were summarized using the Observed Cases (OC) approach, and no missing data imputation was applied. Safety was assessed by monitoring of serious adverse events (SAEs), treatment-emergent adverse events (TEAEs), and treatment-emergent adverse events of special interest (AESI), which were analysed as exposure-adjusted rates per 100 patient-years (PY). Results: Efficacy results were sustained up to week 140 since week 16. Proportions of patients in the UPA15 (205), UPA30 (206), PBO/UPA15 (91), and PBO/UPA30 (94) groups achieving EASI 75 at week 140 were 88.8% (182), 90.3% (186), 83.5% (76), and 89.4% (84), respectively, and for vIGA-AD 0/1 was 63.4% (130), 65.5% (135), 60.4% (55), and 75.5% (71), respectively. Proportions of patients achieving an improvement (reduction) in WP-NRS≥4 from baseline at week 140 were 68.0% (136), 70.5% (146), 71.3% (62), and 81.3% (74) respectively. Overall, the rates of AESIs were similar across treatment groups, which aligned with prior reports at earlier time points. Both UPA15 and UPA30 were well-tolerated in all patients, and no new safety signals were observed compared to the known safety profile of UPA. Data from two additional pivotal studies will be available at the time of presentation. Conclusion: In this interim analysis, sustained skin clearance and itch and a consistent safety profile were observed with UPA 15 mg and UPA 30 mg across 140 weeks in adolescent and adult patients with moderate-to-severe AD. [ABSTRACT FROM AUTHOR]

The efficacy and safety of dupilumab have been reported previously based on data from controlled clinical trials. The GLOBOSTAD study extends the scope of these trials by providing real-world data. This analysis reports baseline demographics and family disease history in patients with atopic dermatitis (AD) who received treatment with dupilumab in a real-world setting. This 5-year, international, multicentre, non-interventional study (GLOBOSTAD; NCT03992417) included patients ≥12 years old with moderate-to-severe AD (Investigator’s Global Assessment score ≥3) who received dupilumab treatment based on country-specific prescribing criteria. Data reported are for the population at baseline (N=952; data cut-off: March 2022) in 22 countries. In the 952 patients included at baseline, mean (standard deviation) age at AD onset was 11.1 (16.0) years. Male patients represented 57.8% of patients and White patients 65.2%. The majority of patients were enrolled from Italy (17.2%), Japan (12.4%) and Spain (11.3%). Family history of type 2 inflammatory conditions (number of patients [%]) was prevalent, including AD (364 [38.2%]), asthma (238 [25%]), allergic rhinitis (219 [23%]), food allergies (74 [7.8%]), recurrent or chronic urticaria (31 [3.3%]), nasal polyposis (21 [2.2%]), eosinophilic esophagitis (11 [1.2%]) and other atopic/allergic conditions (39 [4.1%]). Most cases of type 2 inflammatory conditions were reported in first-degree relatives. Most patients enrolled in the GLOBOSTAD study developed AD during pre-adolescence. Family history of select type 2 inflammatory conditions, including AD, asthma and allergic rhinitis, was present in a moderate proportion of patients. [ABSTRACT FROM AUTHOR]

Stromal cell-derived factor 1α (SDF-1α) (CXCL12) has been observed to enhance tumor angiogenesis. However, the comprehensive role of SDF-1α (CXCL12)–CXCR4 interaction, exerted during angiogenesis, has not been well understood. We have previously demonstrated that human basal cell carcinoma (BCC) tissues and a BCC cell line (BCC-1/KMC) had significant expression of CXCR4, whose level was higher in invasive than in the non-invasive BCC types. Here, we observed that human BCC tissues with high expression levels of CXCR4 had higher vascularity. Further, among the 71 BCCs diagnosed between the years 2004–2005, BCCs with high CXCR4 expression had concomitantly higher microvessel density, as compared with those with low CXCR4 expression (P < 0.001). We found that SDF-1α induced angiogenic activity in human BCC cells, both in vitro and in vivo. SDF-1α significantly upregulated several angiogenesis-associated genes such as interferon-alpha-inducible protein 27, interleukin (IL)-6, bone morphogenetic protein (BMP)-6, SOCS2 and cyclooxygenase 2 (COX)-2 in human BCC cells. Among them, IL-6 was the earliest and highest upregulated gene whose induction was observed within 6 h of the commencement of SDF-1α–CXCR4 interaction. The mechanisms behind the SDF-1α-induced time and dose-dependent upregulation of messenger RNA expression and protein secretion of IL-6 were investigated. The transcriptional regulation of IL-6 by SDF-1α was mediated by phosphorylation of extracellular signal-related kinase 1/2 and activation of the nuclear factor-κB complex. The identification of the angiogenic profiles induced through SDF-1α–CXCR4 interactions in human BCC cells may contribute further insights into the mechanisms involved in the angiogenic potential of SDF-1α (CXCL12). [ABSTRACT FROM PUBLISHER]

Background: Connective tissue growth factor (CTGF) inhibits the metastatic activity of human lung cancer cells in a mouse model; however, the mechanism of this modulation is unclear. We investigated the role of angiogenesis in this process. Methods: CL1-5 and A549 human lung adenocarcinoma cells were stably transfected with vectors containing CTGF or hypoxia-inducible factor (HIF) la or with vector controls. Transfected cells were injected into nude mice (n = 10 per group), and tumor growth, metastasis, and mouse survival were measured. Excised xenograft tumors and primary human lung adenocarcinomas (n = 24) were subjected to immunohistochemistry with antibodies to the endothelial cell marker CD31 and to CTGF. Expression of HIF-1α and vascular endothelial growth factor (VEGF) A was assessed in vitro by using reporter gene assays. Cells were transiently transfected with HIF-1α mutant and antisense arrest-defective 1 protein (ARD-1), and HIF-1α acetylation was assayed by immunoprecipitation. All statistical tests were two-sided. Results: Xenograft tumors derived from CTGF transfectants grew more slowly than those from control-transfected cells and had reduced expression of HIF-1α and VEGF-A, vascularization (as assessed by CD31 expression), and metastasis (all P<.001). Xenograft tumors derived from CTGF-overexpressing cells that were transfected with HIF-1α had higher VEGF-A expression than CTGF-overexpressing xenografts. Mice with CTGF/HIF-1α xenografts had lower survival than mice carrying CTGF-overexpressing xenografts (CL1-5/Neo, mean = 69.6 days, 95% confidence interval [CI ] = 53.9 to 85.3 days versus CL1-5/CTGF, mean = 102.1 days, 95% CI = 92.1 to 112.1 days; P = .001, CL1-5/CTGF, mean = 102.1 days, 95% CI = 92.1 to 112.1 days versus CLI-5/CTGF/HIF-la, mean = 81.7 days, 95% CI = 66.5 to 96.9 days; P = .011, CLI-5/Neo, mean = 69.6 days, 95% CI = 53.9 to 85.3 days versus CL1-5/CTGF/HI F-1α, mean = 81.7 days, 95% CI = 66.5 to 96.9 days; P = .122). Tumors of patients with the same disease stage but with high CTGF protein expression had reduced microvessel density compared with tumors with low expression. Transfection with antisense-ARD1 decreased the level of acetylated HIF-1α and restored HIF-1α and VEGF-A expression in CTGF-overexpressing cells. Conclusion: CTGF inhibition of metastasis involves the inhibition of VEGF-A-dependent angiogenesis, possibly by promoting HIF-1α protein degradation. [ABSTRACT FROM AUTHOR]

Laryngeal and hypopharyngeal squamous cell carcinomas (LHSCCs) are common head and neck cancers with a high propensity for lymph node (LN) and lung metastasis. Here, we report that LHSCCs express high levels of functional CXCR4 receptors, native for chemokine stromal cell-derived factor-1 (SDF-1/CXCL12). Primary tumor immunohistochemistry from LHSCC patients has revealed significant expression of CXCR4 and CXCL12. Greater expression of CXCR4 but not that of CXCL12 is correlated with LN and distant metastasis. Reverse transcription–polymerase chain reaction and western blots have demonstrated that CXCR4 messenger RNA (mRNA) and protein were expressed in LHSCC cell lines as well, but failed to detect CXCL12 mRNA expression. CXCL12 treatment enhanced extracellular signal-regulated kinase (ERK) pathway activation and the motility/invasiveness of LHSCC cell lines, which were blocked by treatment with a CXCR4 antagonist (AMD3100) and a specific MEK inhibitor (U0126). Results show that the mRNA and protein levels of matrix metalloproteinase (MMP)-13, but not MMP-2 or MMP-9, were elevated in HEp-2 cells in response to CXCL12. Again, U0126 almost inhibited the induction of MMP-13 in HEp-2 cells by stimulating CXCL12. The transcriptional factor, c-Jun, a downstream factor of ERK pathway, was found to be readily phosphorylated and translocated to the nucleus after 10 min of exposure to CXCL12. Blockage of c-Jun activity by transfection with c-jun antisense oligodeoxynucleotide significantly decreased CXCL12-induced MMP-13 expression and cell invasion. CXCL12 seems to enhance LHSCC cell invasion through paracrine-activated CXCR4, which triggers ERK/c-Jun-dependent MMP-13 upregulation. [ABSTRACT FROM AUTHOR]