The study was performed in 7 study sites in Thailand and planned to involve approximately 200 medical records.~At each study site, patients who were treated with secukinumab or had ever been treated with secukinumab for moderate to severe plaque psoriasis were included for screening by chronological order starting from the most recent date (April 2021) to September 2017. This was to include the most recent clinical practice in the study.~The data of patients diagnosed with moderate-to-severe chronic plaque-type psoriasis who received secukinumab in real clinical practice at least 1 dose were collected. The medical records were reviewed to collect the data from the date of the first diagnosis of psoriasis till the most recent dose of secukinumab.~The data of secukinumab use and clinical outcome (PASI score) were collected at 4 and 16 weeks after first dose initiation and at the most recent dose of secukinumab. The total number of secukinumab injections at the 3-time points were collected.~An index date was defined for each patient. The first secukinumab injection observed in the medical records was considered the index date for the exploratory endpoint.
This study was a non-interventional, retrospective study collecting data from hospital medical records. Approximately 200 adult patients with moderate to severe plaque psoriasis who were treated with secukinumab from hospitals in Thailand that participated in this study were expected for data collection.