Measuring the Treatment Preferences of Participants in Japan With Moderate-to-Severe Psoriasis (PsO) Using Discrete Choice Experiment

Study Overview
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Brief Summary
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The purpose of this observational study is to identify and weight the treatment attributes from the moderate-to-severe Psoriasis (PsO) patients' perspective in Japan.

Official Title
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Patient Preference for Treatment of Moderate-To-Severe Psoriasis in Japan

Conditions
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Psoriasis

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Diagnosis of moderate-to-severe Psoriasis (PsO) by physician (phase 1) or self-reported (phase 2) Currently taking systemic psoriasis treatment Japanese resident aged 20 years and older Exclusion Criteria: Unable or unwilling to provide informed consent Diagnosis of guttate, inverse, pustular, erythrodermic, or drug-induced psoriasis

Ages Eligible for Study
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Minimum Age: 20 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Phase 1<br>Participants with moderate-to-severe Psoriasis (PsO) in Japan who have been recruited based on eligibility criteria | |
| Phase 2<br>Self-reported moderate-to-severe Psoriasis (PsO) participants in Japan | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Psoriasis (PsO) patient preferences of moderate-to-severe systemic treatment atrribute |  | Within 60 minutes of survey/interview | 
| Distribution of socio-demographic characteristics of Psoriasis (PsO) participants in Phase 1: Sex |  | At Baseline | 
| Distribution of socio-demographic characteristics of PsO participants in Phase 1: Age |  | At Baseline | 
| Distribution of clinical characteristics of PsO participants in Phase 1: Time since PsO diagnosis |  | At Baseline | 
| Distribution of clinical characteristics of PsO participants in Phase 1: Severity of PsO |  | At Baseline | 
| Distribution of clinical characteristics of PsO participants in Phase 1: Current treatments for PsO |  | At Baseline | 
| Distribution of clinical characteristics of PsO participants in Phase 1: Time on current PsO treatment |  | At Baseline | 
| Distribution of socio-demographic characteristics of PsO participants in Phase 1: Residence |  | At Baseline | 
| Distribution of socio-demographic characteristics of PsO participants in Phase 1: Employment status |  | At Baseline | 
| Distribution of socio-demographic characteristics of PsO participants in Phase 1: Education |  | At Baseline | 
| Distribution of clinical characteristics of PsO participants in Phase 1: Total number of previous treatments |  | At Baseline | 
| Distribution of clinical characteristics of PsO participants in Phase 1: Previous treatments for PsO |  | At Baseline | 
| Distribution of socio-demographic characteristics of PsO participants in Phase 1: Level of income |  | At Baseline | 
| Distribution of socio-demographic characteristics of Psoriasis (PsO) participants in Phase 2: Sex |  | At Baseline | 
| Distribution of socio-demographic characteristics of Psoriasis (PsO) participants in Phase 2: Age |  | At Baseline | 
| Distribution of socio-demographic characteristics of Psoriasis (PsO) participants in Phase 2: Height |  | At Baseline | 
| Distribution of socio-demographic characteristics of Psoriasis (PsO) participants in Phase 2: Weight |  | At Baseline | 
| Distribution of socio-demographic characteristics of Psoriasis (PsO) participants in Phase 2: Residence |  | At Baseline | 
| Distribution of socio-demographic characteristics of Psoriasis (PsO) participants in Phase 2: Employment status |  | At Baseline | 
| Distribution of socio-demographic characteristics of Psoriasis (PsO) participants in Phase 2: Type of occupation |  | At Baseline | 
| Distribution of socio-demographic characteristics of Psoriasis (PsO) participants in Phase 2: Education |  | At Baseline | 
| Distribution of clinical characteristics of Psoriasis (PsO) participants in Phase 2: Time since PsO diagnosis |  | At Baseline | 
| Distribution of clinical characteristics of Psoriasis (PsO) participants in Phase 2: Self-reported severity |  | At Baseline | 
| Distribution of clinical characteristics of Psoriasis (PsO) participants in Phase 2: Current treatments for PsO |  | At Baseline | 
| Distribution of clinical characteristics of Psoriasis (PsO) participants in Phase 2: Time on current PsO treatment |  | At Baseline | 
| Distribution of clinical characteristics of Psoriasis (PsO) participants in Phase 2: Previous treatments for PsO |  | At Baseline | 
| Distribution of clinical characteristics of Psoriasis (PsO) participants in Phase 2: Comorbid conditions of interest |  | At Baseline | 
| Distribution of socio-demographic characteristics of Psoriasis (PsO) participants in Phase 2: Level of income |  | At Baseline | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Psoriasis, Japan, BMS-986165, Observational study, Moderate-to-severe PsO, DCE (discrete choice experiment), Preferences