Secukinumab long-term efficacy and safety in psoriasis through to year 5 of treatment: results of a randomized extension of the phase III ERASURE and FIXTURE trials.

BACKGROUND: In the long-term extension study of the ERASURE and FIXTURE trials, the efficacy of secukinumab (a fully human anti-interleukin-17A monoclonal antibody) was demonstrated to have been maintained through to year 3 of treatment in moderate-to-severe plaque psoriasis. OBJECTIVES: To assess the efficacy and safety of secukinumab through to year 5 of treatment in moderate-to-severe plaque psoriasis. METHODS: Responders with ≥ 75% improvement in Psoriasis Area and Severity Index (PASI 75) from two core trials - ERASURE and FIXTURE - were randomized 2 : 1 at year 1 (end of core trials) to either the same dose (300 or 150 mg, continuous treatment) or placebo (treatment withdrawal) every 4 weeks, until year 3 or relapse (> 50% reduction in maximal PASI from core study baseline). Partial responders (achieving PASI 50 but not PASI 75) at year 1 continued at the same dose as in the core trials. At year 3, all patients received open-label secukinumab treatment, with those on secukinumab 300 mg continuing on their dose, while those on secukinumab 150 mg or placebo received secukinumab 150 or 300 mg based on the physician's discretion. The study is registered on ClinicalTrials.gov with the identifier NCT01544595. RESULTS: Most patients randomized to placebo at year 1 relapsed, but the response was rapidly recaptured upon reinitiation of treatment. PASI responses were sustained with secukinumab through to year 5. The PASI responses for the 300 mg responders + partial responders group at year 1 (PASI 75/90/100: 86.8%/72.8%/45.9%) trended downwards until year 3 (PASI 75/90/100: 82.3%/58.4%/32.7%) and then remained stable through year 4 (PASI 75/90/100: 83.3%/60.1%/32.2%) until year 5 (PASI 75/90/100: 81.1%/62.8%/35.1%). Dermatology Life Quality Index showed sustained benefit up to year 5. Absolute PASI responses were maintained throughout the study. The most common adverse events (AEs) were infections and infestations, nasopharyngitis, and upper respiratory tract infections (URTIs). The overall exposure-adjusted incidence rate (EAIR; with 95% confidence interval) for all AEs was 139.9 (130.3-149.9). EAIRs for Crohn's disease and neutropenia were 0.1 (0.0-0.3) and 0.5 (0.3-0.8), respectively. CONCLUSIONS: The 4-year extension of two pivotal phase III trials demonstrated that secukinumab treatment was effective through to year 5 and improved quality of life in patients with moderate-to-severe plaque psoriasis. The most common AEs were infections and infestations, nasopharyngitis, and URTIs. The safety profile was consistent with that in the secukinumab phase II/III clinical development programme.

Long-term Safety of Secukinumab Over Five Years in Patients with Moderate-to-severe Plaque Psoriasis, Psoriatic Arthritis and Ankylosing Spondylitis: Update on Integrated Pooled Clinical Trial and Post-marketing Surveillance Data.

Secukinumab, a selective interleukin (IL)-17A inhibitor, is approved for use in adult and paediatric psoriasis, psoriatic arthritis, ankylosing spondylitis and non-radiographic axial spondyloarthritis. The aim of this study was to report the long-term safety of secukinumab in pooled data from 28 clinical trials and a post-marketing safety surveillance in psoriasis, psoriatic arthritis and ankylosing spondylitis patients. Analyses included 12,637 secukinumab-treated patients, corresponding to 15,063, 5,985 and 3,527 patient-years of exposure in psoriasis, psoriatic arthritis and ankylosing spondylitis patients, respectively. Incidences of serious adverse events were low, with no identifiable patterns across indications. Active tuberculosis or latent tuberculosis infections were rare. The incidence of opportunistic infections was < 0.2/100 patient-years, the incidence of malignancy was ≤ 1/100 patient-years, and the incidence of major adverse cardiovascular events was < 0.7/100 patient-years, with no apparent increases over time. Secukinumab demonstrated a favourable safety profile for up to 5 years of treatment across the 3 indications, and no new safety signals were identified.

Prevalence and clinical characteristics of chronic spontaneous urticaria in pediatric patients.

BACKGROUND: Data on the prevalence and disease management of chronic urticaria (CU) and chronic spontaneous urticaria (CSU) in the pediatric population are scarce. This study assessed the prevalence of CU and CSU, and disease management among pediatric patients (0-17 years). METHODS: A physician-based online survey was conducted in 5 European countries (United Kingdom, Germany, Italy, France, and Spain) assessing the annual diagnosed prevalence, disease characteristics, and treatment patterns in the target population. Results are based on physician responses and analyzed using descriptive statistics. Prevalence estimates were calculated based on the number of CU/CSU pediatric patients diagnosed, seen, and treated by the respondents and extrapolated to the total pediatric population from each country. RESULTS: Across 5 European countries, the one-year diagnosed prevalence of CU and CSU in pediatric patients was 1.38% (95% CI, 0.94-1.86) and 0.75% (95% CI, 0.44-1.08), respectively. Angioedema was reported in 6%-14% of patients. A large proportion of CSU pediatric patients (40%-60%) were treated with H1-antihistamines at approved dose and 16%-51% received H1-antihistamines at higher doses. Approximately 1/3 of pediatric CSU patients remained uncontrolled with H1-antihistamines at approved/higher doses. Other prescribed treatments were oral corticosteroids (10%-28%) and topical creams (15%-26%). CONCLUSIONS: This study revealed a prevalence of CSU among pediatric population comparable to adults and also suggested an unmet need for approved treatments for inadequately controlled pediatric CSU patients. It is truly of concern that harmful (oral steroids) or insufficient (topical creams) treatments were frequently used despite better and guideline-recommended alternatives.

Secukinumab in plaque psoriasis--results of two phase 3 trials.

BACKGROUND: Interleukin-17A is considered to be central to the pathogenesis of psoriasis. We evaluated secukinumab, a fully human anti-interleukin-17A monoclonal antibody, in patients with moderate-to-severe plaque psoriasis. METHODS: In two phase 3, double-blind, 52-week trials, ERASURE (Efficacy of Response and Safety of Two Fixed Secukinumab Regimens in Psoriasis) and FIXTURE (Full Year Investigative Examination of Secukinumab vs. Etanercept Using Two Dosing Regimens to Determine Efficacy in Psoriasis), we randomly assigned 738 patients (in the ERASURE study) and 1306 patients (in the FIXTURE study) to subcutaneous secukinumab at a dose of 300 mg or 150 mg (administered once weekly for 5 weeks, then every 4 weeks), placebo, or (in the FIXTURE study only) etanercept at a dose of 50 mg (administered twice weekly for 12 weeks, then once weekly). The objective of each study was to show the superiority of secukinumab over placebo at week 12 with respect to the proportion of patients who had a reduction of 75% or more from baseline in the psoriasis area-and-severity index score (PASI 75) and a score of 0 (clear) or 1 (almost clear) on a 5-point modified investigator's global assessment (coprimary end points). RESULTS: The proportion of patients who met the criterion for PASI 75 at week 12 was higher with each secukinumab dose than with placebo or etanercept: in the ERASURE study, the rates were 81.6% with 300 mg of secukinumab, 71.6% with 150 mg of secukinumab, and 4.5% with placebo; in the FIXTURE study, the rates were 77.1% with 300 mg of secukinumab, 67.0% with 150 mg of secukinumab, 44.0% with etanercept, and 4.9% with placebo (P<0.001 for each secukinumab dose vs. comparators). The proportion of patients with a response of 0 or 1 on the modified investigator's global assessment at week 12 was higher with each secukinumab dose than with placebo or etanercept: in the ERASURE study, the rates were 65.3% with 300 mg of secukinumab, 51.2% with 150 mg of secukinumab, and 2.4% with placebo; in the FIXTURE study, the rates were 62.5% with 300 mg of secukinumab, 51.1% with 150 mg of secukinumab, 27.2% with etanercept, and 2.8% with placebo (P<0.001 for each secukinumab dose vs. comparators). The rates of infection were higher with secukinumab than with placebo in both studies and were similar to those with etanercept. CONCLUSIONS: Secukinumab was effective for psoriasis in two randomized trials, validating interleukin-17A as a therapeutic target. (Funded by Novartis Pharmaceuticals; ERASURE and FIXTURE ClinicalTrials.gov numbers, NCT01365455 and NCT01358578, respectively.).

Secukinumab sustains early patient-reported outcome benefits through 1 year: Results from 2 phase III randomized placebo-controlled clinical trials comparing secukinumab with etanercept.

BACKGROUND: Psoriasis is a chronic condition with negative impact on patients' quality of life that most often requires lifelong effective and safe treatment. OBJECTIVE: This analysis focused on the effect of secukinumab treatment on patient-reported health-related quality of life as assessed by the Dermatology Life Quality Index (DLQI) in patients with moderate to severe psoriasis. METHODS: The proportion of subjects achieving DLQI score 0/1 response at week 24, time to DLQI score 0/1 response, and sustained DLQI score 0/1 response up to week 52 were compared between secukinumab and etanercept. RESULTS: Of 1470 subjects, 1144 received secukinumab and 326 received etanercept. DLQI score 0/1 response rates were significantly higher for secukinumab than for etanercept at week 24. The median time to DLQI score 0/1 response was significantly shorter for secukinumab versus etanercept (12 vs 24 weeks; P < .01). The majority of secukinumab-treated subjects achieved DLQI score 0/1 response at week 24 and sustained it through week 52 along with a 90% to 100% reduction in the Psoriasis Area and Severity Index total score response. LIMITATIONS: Placebo comparisons are limited during the maintenance period because of rerandomization at week 12. CONCLUSION: Secukinumab treatment provided faster and greater sustained improvements in quality of life than etanercept over 52 weeks, consistent with greater clinical response.

Methods for Imputing Missing Efficacy Data in Clinical Trials of Biologic Psoriasis Therapies: Implications for Interpretations of Trial Results.

BACKGROUND: An issue in long-term clinical trials of biologics in psoriasis is how to handle missing efficacy data. This methodological challenge may not be understood by clinicians, yet can have a significant effect on the interpretation of clinical trials.

OBJECTIVE Evaluate the effects of different data imputation methods on apparent secukinumab response rates.

METHODS: Post hoc analyses were conducted on efficacy data from 2 phase III, multicenter, randomized, double-blind trials (FIXTURE and ERASURE) of secukinumab in moderate to severe plaque psoriasis. Per study protocols, missing data were imputed using strict non-response imputation (NRI), a highly conservative method that assumes non-response for all missing data. Alternative imputation methods (observed data, last observation carried forward [LOCF], modified NRI, and multiple imputation [MI]) were applied in this analysis and the resultant response rates compared.

RESULTS: Response rates obtained with each imputation method diverged increasingly over 52-weeks of follow-up. Strict NRI response estimates were consistently lower than those using the other methods. At week 52, Psoriasis Area and Severity Index (PASI) 90 rates for secukinumab 300 mg based on strict NRI were 9.2% (FIXTURE) and 8.7% (ERASURE) lower than estimates obtained using the least conservative method (observed data). Estimates obtained through LOCF and modified NRI were closest to those produced by MI, currently regarded as the most methodologically sophisticated approach available.

CONCLUSION: Awareness of differences in assumptions and limitations among imputation methods is necessary for well-informed interpretation of trial data.

J Drugs Dermatol. 2017;16(8):734-742.

Secukinumab long-term safety experience: A pooled analysis of 10 phase II and III clinical studies in patients with moderate to severe plaque psoriasis.

BACKGROUND: Secukinumab, a fully human anti-interleukin-17A monoclonal antibody, has demonstrated efficacy and safety in patients with moderate to severe plaque psoriasis. OBJECTIVE: We reviewed safety data from the secukinumab psoriasis phase II/III program. METHODS: Data were pooled from 10 phase II/III secukinumab psoriasis studies. RESULTS: Analysis included 3993 subjects; 3430 received secukinumab, representing 2725 subject-years (SYs) of exposure. Over 52 weeks, for secukinumab 300 mg, 150 mg, and etanercept, respectively, exposure-adjusted incidence rates (IRs) per 100 SYs were comparable across treatments for total adverse events (AEs; 236.1, 239.9, and 243.4, respectively); infections (91.1, 85.3, and 93.7, respectively); serious AEs (7.4, 6.8, and 7.0, respectively); serious infections (1.4, 1.1, and 1.4, respectively); malignant or unspecified tumors (0.77, 0.97, and 0.68, respectively); and adjudicated major adverse cardiovascular events (0.42, 0.35, and 0.34, respectively). AEs were not dose-related except for nonserious, mild/moderate, skin/mucosal candidiasis (IRs 3.55, 1.85, and 1.37 for secukinumab 300 mg, 150 mg, and etanercept, respectively). LIMITATIONS: There was a limited number of patients in comparator groups and the exposure to placebo was short. CONCLUSION: Secukinumab had a favorable safety profile, had no meaningful difference between the 300- and 150-mg doses and, in terms of safety, was comparable to etanercept over 52 weeks in patients with moderate to severe plaque psoriasis.

Secukinumab Self-Administration by Prefilled Syringe Maintains Reduction of Plaque Psoriasis Severity Over 52 Weeks: Results of the FEATURE Trial.

BACKGROUND: Secukinumab, a human monoclonal antibody that selectively targets interleukin-17A, is highly efficacious in the treatment of moderate-to-severe psoriasis, starting at early time points, with a sustained effect and a favorable safety profile. METHODS: Patients with moderate-to-severe plaque psoriasis were randomized to secukinumab 300 mg, secukinumab 150 mg, or placebo self-administered by prefilled syringe at baseline, weeks 1, 2, and 3, and then every four weeks from week 4 to 48. Efficacy responses (≥ 75/90/100% improvement in Psoriasis Area and Severity Index [PASI 75/90/100] and clear/almost clear skin by Investigator's Global Assessment 2011 modified version [IGA mod 2011 0/1]) were measured to week 52. Patient-reported usability of the prefilled syringe was evaluated by the Self-Injection Assessment Questionnaire to week 48. RESULTS: The efficacy of secukinumab increased to week 16 and was maintained to week 52. With secukinumab 300 mg at week 52, PASI 75/90/100 and IGA mod 2011 0/1 responses were achieved by 83.5%/68.0%/47.5% and 71.5% of patients when analyzed by multiple imputation, respectively, and by 75.9%/62.1%/43.1% and 63.8% of patients when analyzed by nonresponder imputation, respectively. With secukinumab 150 mg at week 52, PASI 75/90/100 and IGA mod 2011 0/1 responses were achieved by 63.5%/50.3%/31.1% and 43.6% of patients when analyzed by multiple imputation, respectively, and by 61.0%/49.2%/30.5% and 42.4% of patients when analyzed by nonresponder imputation, respectively. Self-reported acceptability of the prefilled syringe was high throughout the study. The incidence of adverse events (AE) was well balanced between groups, with AEs reported in 74.4% of patients receiving secukinumab 300 mg and 77.3% of patients receiving secukinumab 150 mg. Nasopharyngitis was the most common AE across both secukinumab groups. CONCLUSION: Self-administration of secukinumab by prefilled syringe was associated with robust and sustained efficacy and a favorable safety profile up to week 52.

J Drugs Dermatol. 2016;15(10):1226-1234.

Secukinumab retreatment-as-needed versus fixed-interval maintenance regimen for moderate to severe plaque psoriasis: A randomized, double-blind, noninferiority trial (SCULPTURE).

BACKGROUND: Secukinumab has demonstrated high, sustained efficacy in psoriasis to 52 weeks on a fixed-interval regimen. OBJECTIVE: We sought to compare a retreatment-as-needed versus a fixed-interval regimen. METHODS: In this double-blind study, adults with moderate to severe plaque psoriasis were randomized 1:1 to subcutaneous secukinumab at 300 mg (n = 484) or 150 mg (n = 482) weekly from baseline until week 4, and at week 8. At week 12, patients achieving 75% or more improvement from baseline Psoriasis Area and Severity Index score (PASI 75) were rerandomized to 2 dose levels of secukinumab retreatment as needed (n = 217, 300 mg; n = 206, 150 mg) or fixed interval (n = 217; n = 203). Primary end point was noninferiority of retreatment as needed versus fixed interval for maintaining PASI 75 to week 52. RESULTS: Secukinumab induced high responses by week 12 (84.4%-91.1% PASI 75 responders). From week 12 to week 52, more patients on fixed interval (78.2%, 300 mg; 62.1%, 150 mg) maintained PASI 75 versus retreatment as needed (67.7%; 52.4%); statistical noninferiority of retreatment as needed was not established. Overall safety, including very low incidences of treatment-emergent anti-drug antibodies (<0.5%), was similar between regimens. LIMITATIONS: The primary end point was developed without any known precedent. CONCLUSION: Secukinumab fixed interval showed clear benefit versus the study-specified retreatment-as-needed regimen for maintaining efficacy. Both regimens exhibited safety consistent with previous trials. The potential of retreatment as needed with secukinumab warrants further investigation.

Secukinumab Improves Physical Function in Subjects With Plaque Psoriasis and Psoriatic Arthritis: Results from Two Randomized, Phase 3 Trials.

BACKGROUND: Interleukin (IL)-17A is a key cytokine in the pathogenesis of psoriatic disease of the skin and joints. In phase 3 trials, secukinumab, a fully human anti-IL-17A monoclonal antibody, demonstrated robust efficacy in psoriasis, with rapid onset, high response rates, and durable response. OBJECTIVE: To evaluate the efficacy of secukinumab in subjects with psoriasis and concomitant psoriatic arthritis (PsA) with respect to psoriasis symptoms and physical function, we conducted pre-specified subanalyses of the phase 3 FIXTURE and ERASURE trials. METHODS: The 52-week FIXTURE and ERASURE trials randomized subjects with moderate-to-severe plaque psoriasis to subcutaneous secukinumab 300 or 150 mg (Baseline, weeks 1, 2, 3, every 4 weeks from week 4 until week 48), etanercept 50 mg (twice weekly through week 12, once weekly thereafter through week 51; FIXTURE only), or placebo. In this analysis, changes in Health Assessment Questionnaire-Disability Index (HAQ-DI) and PASI 75 responses were assessed in subpopulations with concomitant PsA (n=196, FIXTURE; n=171, ERASURE). RESULTS: Physical functioning (mean change from Baseline in HAQ-DI) was greater with secukinumab 300 mg vs. placebo at week 12 in both trials (FIXTURE, -0.41 vs. 0.02/P=0.0001; ERASURE, -0.35 vs. -0.08/P=0.0003); corresponding values were -0.29 for etanercept and -0.19 for secukinumab 150 mg in FIXTURE and -0.18 for secukinumab 150 mg in ERASURE. Greater responses were seen in subjects with greater Baseline disability (HAQ-DI ≥05). Week 12 PASI 75 responses were higher with secukinumab 300 mg/150 mg vs. placebo in FIXTURE (72%/59% vs. 2%) and ERASURE (68%/70% vs. 4%; all P<0.0001) and with secukinumab 300 mg vs. etanercept (72% vs 39%; P=0.0084). CONCLUSION: Secukinumab 300 mg produced significant improvement in psoriasis and physical functioning in subjects with concomitant PsA. ClinicalTrials.gov numbers: NCT01358578 (FIXTURE); NCT01365455 (ERASURE)

Item-level psychometric properties for a new patient-reported psoriasis symptom diary.

OBJECTIVES: This research evaluated the psychometric properties of a new Psoriasis Symptom Diary, identified diary responder definitions for use in determining whether a patient has experienced clinically meaningful change, and refined diary item content for use in future clinical trials. METHODS: The Psoriasis Symptom Diary was administered in a phase 2 clinical trial of AIN457 to US adult outpatients (N = 172) with physician-diagnosed moderate to severe chronic plaque-type psoriasis. Participant compliance with daily diary administration and item score variability, reliability, construct and discriminant validity, sensitivity to change, and interpretation were all evaluated. RESULTS: Participants completed 94% of scheduled diary assessments across 12 study weeks. Diary items were generally normally distributed, and no floor or ceiling effects were observed. Item reliability (reproducibility) was acceptable (intraclass correlation coefficients > 0.80), with an exception for one item (skin color). At week 12, items significantly related to criterion measures as predicted (Psoriasis Area and Severity Index r = 0.27-0.57; Investigator's Global Assessment r = 0.25-0.59), with the exception of items that measured skin color and difficulty using hands. Most items generated change scores that were synchronous to changes as measured by the Psoriasis Area and Severity Index, Investigator's Global Assessment, Dermatology Life Quality Index (r > 0.37), as well as the Patient Global Impression of Change. Responders experienced a 2- to 3-point and 3- to 5-point change in item scores for minimal and large improvements, respectively. Four items that did not perform well were dropped from the diary. CONCLUSIONS: The 16-item Psoriasis Symptom Diary demonstrated favorable psychometric properties and is a brief, useful tool for measuring patient-based symptoms and the impact of chronic plaque psoriasis.

Characterization of responder groups to secukinumab treatment in moderate to severe plaque psoriasis.

Background: Secukinumab is a fully human monoclonal antibody that neutralizes interleukin-17A (IL-17A), a key cytokine involved in the development of psoriasis. Here, we characterized secukinumab treatment-responder profiles and identified baseline factors affecting response.Methods: Pooled phase 3 data from moderate to severe plaque psoriasis patients treated with secukinumab for 16 weeks (FIXTURE [NCT01358578], ERASURE [NCT01365455], and CLEAR [NCT02074982]) were analyzed to characterize responder groups, identifying factors associated with treatment response, and to evaluate early response kinetics as a biomarker for treatment response. Etanercept and ustekinumab were evaluated as comparators.Results: Patients treated with secukinumab 300 mg (n = 867), ustekinumab 45/90 mg (n = 318), and etanercept 50 mg (n = 298) were evaluated. For secukinumab 300 mg, more patients were in higher responder groups than etanercept and ustekinumab. In higher response groups, fewer patients had previous systemic or biologic treatment, metabolic syndrome, hypertension, diabetes, and fewer were current smokers. Mean body weight, waist circumference, and BMI decreased as response level increased. Early onset of response (PASI50 at Week 4 or 8) correlated with sustained efficacy at Week 16.Conclusions: Baseline factors, including weight and cardiometabolic status, were associated with response to secukinumab. Early onset of response may indicate treatment efficacy later on.

Efficacy and Safety of Secukinumab in Elderly Subjects with Moderate to Severe Plaque Psoriasis: A Pooled Analysis of Phase III Studies.

BACKGROUND: Psoriasis is a chronic inflammatory skin disease, affecting patients of a wide age range, including elderly patients. Elderly patients can respond differently to drug treatments and can be more vulnerable to adverse reactions. There are limited data on biologic therapies for psoriasis in elderly subjects. Secukinumab, a fully human monoclonal antibody that selectively neutralizes IL-17A, has proven significant efficacy in the treatment of moderate to severe psoriasis. AIMS: A post-hoc analysis of three phase III trials (ERASURE, FIXTURE and CLEAR) was performed to evaluate the efficacy and safety of secukinumab in elderly subjects. METHODS: Studies were multicentre, randomized, parallel-group, double-blind, 52-week phase III trials in subjects with moderate to severe plaque psoriasis. For efficacy analyses, 67 elderly subjects (≥ 65 years) treated with secukinumab 300 mg were compared with 841 younger subjects (18-64 years). Psoriasis Area and Severity Index (PASI), Dermatological Life Quality Index (DLQI) and safety were analysed. RESULTS: Elderly subjects had higher baseline frequencies of cardiovascular and metabolic disorders. Secukinumab efficacy in elderly subjects was comparable to that in younger subjects throughout 52 weeks of treatment. PASI 75 response was reached by 81.8% of elderly subjects and 79.4% of younger subjects at Week 52. Similar rates of DLQI 0/1 response were observed. The total rate of adverse events was similar between elderly and younger subjects. CONCLUSIONS: Secukinumab at the recommended dose (300 mg) is effective and acceptably safe in subjects aged ≥ 65 years with moderate to severe psoriasis, with quality-of-life benefits, despite an increased prevalence of cardiovascular and metabolic comorbidities in this population.

Psoriasis patients with psoriasis Area and Severity Index (PASI) 90 response achieve greater health-related quality-of-life improvements than those with PASI 75-89 response: results from two phase 3 studies of secukinumab.

BACKGROUND: The emergence of new biological therapies showing high and sustained level of Psoriasis Area and Severity Index (PASI) 90 response has provided the possibility of both greater skin clearance and increased quality of life (QOL). OBJECTIVE: To evaluate the association of greater response in skin clearance with improvements in skin-related QOL up to 52 weeks. METHODS: Subjects achieving various levels of skin clearance (PASI 90-100 or PASI 75-89) and Dermatology Life Quality Index (DLQI) (0/1) response were compared using ERASURE and FIXTURE trial data. Similar analyses with IGA ratings of Clear or Almost Clear were performed. RESULTS: Significantly more PASI 90-100 responders at week 12 had DLQI 0/1 response than PASI 75-89 (69.4% vs. 47.1%; p < .001) and sustained DLQI 0/1 response at week 52 (74.0% vs. 56.7%; p < .001). IGA results were similar. CONCLUSIONS: These results show that PASI 90-100 is a relevant therapeutic goal in moderate to severe psoriasis compared to PASI 75-89 when considering patients' QOL.

Psychometric validation of the Psoriasis Symptom Diary using Phase III study data from patients with chronic plaque psoriasis.

OBJECTIVES: This analysis aimed to confirm the reliability, validity, and responsiveness of the Psoriasis Symptom Diary (PSD) using data from two Phase III studies in patients with moderate to severe chronic plaque psoriasis. METHODS: Data from two randomized, double-blind, double-dummy, placebo-controlled, multicenter Phase III studies (n = 820) assessing the efficacy and safety of secukinumab were used. The PSD (24-h recall; 0-10 numeric rating scale) was electronically administered each evening. Test-retest reliability was determined using intraclass correlations. Construct validity hypotheses were evaluated via correlations with the Psoriasis Area and Severity Index (PASI), Investigator's Global Assessment (IGA), Dermatology Life Quality Index (DLQI), EuroQoL 5-Dimension Health Status Questionnaire, and Patient Global Impression of Change (PGIC). Discriminating ability and responsiveness were evaluated by estimating mean differences and effect sizes between known groups (using the PASI and IGA). Phase II-derived, anchor-based PGIC thresholds and cumulative distribution function (CDF) plots described meaningful change. RESULTS: Items on the PSD yielded high intraclass coefficients (>0.90). Correlations were in the anticipated direction and by week 12 were moderate to strong (0.41-0.73) in magnitude, demonstrating construct validity. Average PSD item scores differed predictably and significantly between known groups. Responsiveness effect size estimates were moderate to large (0.6-1.5), and CDF plots showed the percentage of responders to be consistently higher in treatment than in placebo arms across the range of change in PSD scores. CONCLUSIONS: The PSD is reliable, valid, and responsive, and represents a valid tool to enhance treatment decisions in patients with moderate to severe plaque psoriasis.

Secukinumab improves patient-reported psoriasis symptoms of itching, pain, and scaling: results of two phase 3, randomized, placebo-controlled clinical trials.

BACKGROUND: Secukinumab is a human interleukin-17A antagonist indicated for the treatment of moderate to severe plaque psoriasis in adults who are candidates for systemic therapy or phototherapy. The objective of this analysis was to measure the treatment response on psoriasis-related itching, pain, and scaling via the Psoriasis Symptom Diary (PSD)(©). METHODS: ERASURE (n = 738) and FIXTURE (n = 1306) were double-blind, multicenter phase 3 studies in adults randomized to secukinumab (300, 150 mg, n = 1144) or placebo (n = 574) (administered at Weeks 0, 1, 2, 3, and 4, followed by dosing every 4 weeks) or a biologic active control (FIXTURE only). Patient-reported itching, pain, and scaling were assessed during the first 12 weeks of treatment using the PSD. The results reported here are limited to subjects in the secukinumab and placebo treatment groups who completed the PSD. The proportions of subjects achieving prespecified responses (improvement:reduction of at least 2.2 points for itching, 2.2 points for pain, or 2.3 points for scaling) were compared for secukinumab versus placebo. RESULTS: Overall, 39% of subjects completed the PSD at baseline and Week 12 (n = 453 secukinumab; 225 placebo). Subjects treated with secukinumab achieved significantly greater improvements in itching, pain, and scaling at Week 12 versus placebo (all P < 0.0001) and had significantly greater proportions of itching, pain, and scaling responders at Week 12 versus placebo (all P < 0.05). CONCLUSION: Secukinumab significantly improves patient-reported itching, pain, and scaling in adults with moderate to severe psoriasis compared with placebo.

The 5-point Investigator's Global Assessment (IGA) Scale: A modified tool for evaluating plaque psoriasis severity in clinical trials.

BACKGROUND: To evaluate new psoriasis treatments, clinicians, regulators and pharmaceutical developers require well-accepted, clinically meaningful measures of disease severity. The Psoriasis Area and Severity Index (PASI) score is most widely used as a primary endpoint in clinical trials, although it is not routinely used in clinical practice. OBJECTIVE: Characterize a 5-point Investigator's Global Assessment (IGA) tool and evaluate whether it meets the needs for a valid, clinically meaningful measure. METHODS: A 5-point IGA tool was developed with input from regulatory authorities and clinical trial investigators involved with psoriasis drug development and evaluation. Associations between IGA 0/1 responder rates and PASI scores were evaluated using data from two phase 2 studies with the anti-interleukin (IL)-17A monoclonal antibody secukinumab (AIN457) that utilized a similar 6-point IGA. RESULTS: The 5-point IGA has a more stringent definition for a score of 1 ("almost clear") compared with 6-point IGA/Physician's Global Assessment (PGA) tools used in previous trials of other biologics in moderate-to-severe psoriasis. Whereas IGA/PGA 0/1 responder rates for earlier scales are strongly associated with PASI 75, the IGA 0/1 rate for the secukinumab 6-point scale was more robust, demonstrating a strong association with PASI 90, and the results for the 5-point IGA are expected to show the same association. DISCUSSION: The 5-point IGA is a valid measure of disease severity and meets the need for a clinically meaningful measure of success for psoriasis treatment studies.

Secukinumab efficacy and safety in Japanese patients with moderate-to-severe plaque psoriasis: subanalysis from ERASURE, a randomized, placebo-controlled, phase 3 study.

Secukinumab, a fully human anti-IL-17A monoclonal antibody, neutralizes IL-17A, a key cytokine in the pathogenesis of psoriasis. Efficacy and safety of secukinumab was evaluated in Japanese patients with moderate-to-severe plaque psoriasis as part of a large Phase 3 global study (ERASURE). In this 52-week, double-blind study (ClinicalTrials.gov Identifier: NCT01365455, JapicCTI-111529), 87 patients from Japan (11.8% of 738 patients randomized in the overall study population) were equally randomized to receive secukinumab 300 mg or 150 mg, or placebo once weekly at baseline and at Weeks 1, 2, 3 and 4, then every 4 weeks. Co-primary endpoints (Week 12) were ≥75% improvement in psoriasis area-and-severity index (PASI 75) from baseline and a score of 0 (clear) or 1 (almost clear) on a 5-point Investigator's Global Assessment scale (IGA mod 2011 0/1) versus placebo. PASI 75 and IGA mod 2011 0/1 responses at Week 12 were superior with secukinumab 300 mg (82.8% and 55.2%, respectively) or 150 mg (86.2% and 55.2%, respectively) versus placebo (6.9% and 3.4%, respectively; P < 0.0001 for all). Greater than 90% improvement in PASI (PASI 90) was also superior with secukinumab 300 mg (62.1%) or 150 mg (55.2%) versus placebo (0.0%) at Week 12 (P < 0.0001 for both). Clinical responses were sustained up to Week 52 in the majority of patients. During a 12-week induction period, adverse event incidences were 48.3% with secukinumab 300 mg, 55.2% with 150 mg, and 41.4% with placebo. Secukinumab showed robust and sustainable efficacy in symptom reduction for moderate-to-severe plaque psoriasis in the Japanese patients.