This study was a real-life study which was based on secondary data collection from the electronic or paper medical records from the Dermatology Clinics of the 14 University, Training \& Research Hospitals in Turkey. Data were extracted between 02 September 2020 and 29 April 2021.
The study was a retrospective, multicenter, cohort study which was based on data collection at week 4,16 and 52 of secukinumab treatment of moderate to severe plaque psoriasis. The observational design of the study allowed data collection about secukinumab treatment patterns and clinical and demographic characteristics of plaque psoriasis patients treated with secukinumab for 52 weeks in Turkey. The adults included in the study were treated with secukinumab for 52 weeks. The adults with no available data of PASI scores at specific time points (4, 16 and 52 weeks) and no definite description of treatment cessation were excluded. The study population consisted of adults treated with secukinumab for 52 weeks and adults dropped out before 52 weeks with available data of PASI scores at 4, 16 and 52 weeks and definite description of treatment cessation. Retrospective data collection from secondary sources (hospital medical records) allowed time and cost saving since description of patients' characteristics, analyses of outcomes of interest and their determinants could be made in a short period of time. The study consisted of the following periods: * The index date was the date of initiation of secukinumab * The study (index) period was between 18 May 2018 to 31 May 2020 * The follow-up (post-index) period was 4,16 and 52 weeks post-index
Study Type
OBSERVATIONAL
Enrollment
277
Included all the patients treated with secukinumab
Novartis Investigative Site
East Hanover, New Jersey, United States
Percentage of patients having absolute Psoriasis Area and Severity Index PASI≤3 at week 52
PASI is a combined assessment of lesion severity and affected area into a single score: 0 (no disease) to 72(maximal disease). Body is divided into 4 areas for scoring (head, arms, trunk, legs; each area is scored by itself and scores are combined for final PASI. For each area, percent of skin involved is estimated: 0 (0%) to 6 (90-100%), and severity is estimated by clinical signs, erythema, induration and desquamation; scale 0 (none) to 4 (maximum). Final PASI = sum of severity parameters for each area\* area score weight of section (head: 0.1, arms: 0.2 body: 0.3 legs: 0.4). Assessment of the effectiveness of secukinumab in subjects with moderate to severe plaque psoriasis was performed based on the percentage of patients who had absolute PASI ≤3 at week 52 in Turkey.
Time frame: at week 52
Percentage of patients experiencing a 75% reduction in PASI (PASI75) from baseline
Speed of response to secukinumab according to previous biologic use was demonstrated.
Time frame: at week 4
Percentage of patients experiencing a 75% reduction in PASI (PASI90) from baseline
Speed of response to secukinumab according to previous biologic use was demonstrated.
Time frame: at week 16
Percentage of PASI 90 responders at week 52 out of PASI 90 responders at week 16
Sustainability rate between week 16 and week 52 which is defined as PASI 90 scores at both milestones was assessed.
Time frame: at week 16 and week 52
Percentage of patients experiencing a 100% reduction in PASI (PASI100) from baseline
PASI 100 responders rate at week 52 was assessed.
Time frame: at week 52
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Percentage of PASI 90 responders among biologic naive patients vs. biologic experienced patients
Responders rates for biologic naive vs. non-naive patients in terms of PASI 90 at week 52 was evaluated.
Time frame: at week 52
Percentage of PASI 90 responder rates at week 52 among smokers vs. non-smokers
Effect of secukinumab treatment response for psoriasis patients (between smokers vs. non-smokers) at week 52 was assessed
Time frame: at week 52
Percentage of PASI 75 responder rates among very severe (PASI>20) patients prior the treatment
Effectiveness of secukinumab treatment for very severe ( PASI\>20 ) psoriatic patients at week 52 was demonstrated.
Time frame: at week 52
Nail psoriasis: percentage of patients experiencing nail psoriasis, number of finger nails involved
Effectiveness of secukinumab in psoriatic manifestations was demonstrated.
Time frame: at week 52
Palmoplantar psoriasis: percentage of patients experiencing palmoplantar psoriasis
Effectiveness of secukinumab in psoriatic manifestations was demonstrated.
Time frame: at week 52
Scalp psoriasis: percentage of patients experiencing scalp psoriasis
Effectiveness of secukinumab in psoriatic manifestations was demonstrated.
Time frame: at week 52
Psoriatic arthritis: percentage of patients experiencing psoriatic arthritis
Effectiveness of secukinumab in psoriatic manifestations was demonstrated.
Time frame: at week 52
Percentage of patients who discontinued secukinumab at 52 weeks period
Drug survival as measured by percentage of patients who were persistent secukinumab users, or percentage of patients who discontinued secukinumab at 52 weeks period was reported to describe secukinumab treatment utilization patterns.
Time frame: at week 52
Time to discontinuation
Time to discontinuation defined as time from treatment initiation to treatment stop. For patients who stopped secukinumab but re initiated treatment within 90 days after stop date without any other systemic treatment in between will be considered as continued/persistent users.
Time frame: at week 52