An Exploratory Genetic Study in Participants With Psoriasis

Janssen Research & Development, LLC712 enrolled

Overview

The purpose of this study is to evaluate the association between genetic factors and response to treatment (guselkumab, ustekinumab, adalimumab, or etanercept) and psoriasis (scaly skin rash).

This is a Phase 0, exploratory (intended to be conducted early in Phase 1, involve limited human exposure, have no therapeutic intent and are not intended to examine clinical tolerability), multicenter (when more than one hospital or medical school team work on a medical research study) and pharmacogenomics study in participants with psoriasis. Participants who were treated in study Phase 2 NCT01483599 (X-PLORE), Phase 3 NCT00267969 (PHOENIX 1), Phase 3 NCT00307437 (PHOENIX 2) or Phase 3 NCT00454584 (ACCEPT), will be returning to their study site where a deoxyribonucleic acid (DNA) sample will be obtained for pharmacogenomics assessment. There will be no follow-up beyond the study site visit.

Study Type

OBSERVATIONAL

Enrollment

712

Conditions

Psoriasis

Interventions

No InterventionDRUG

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Participants must have been randomly assigned and treated in the NCT01483599 (X-PLORE), NCT00267969 (PHOENIX 1), NCT00307437 (PHOENIX-2) , or NCT00454584 (ACCEPT) studies * Sign an informed consent document indicating that they understand the purpose of and procedures required for this study and are willing to participate in this study Exclusion Criteria: * Participants has any condition for which, in the opinion of the investigator, participation would not be in the best interest of the subject (for example, compromise the well-being) or that could prevent, limit, or confound the protocol-specified assessments

Locations (19)

Unnamed facility

Bakersfield, California, United States

Unnamed facility

Los Angeles, California, United States

Unnamed facility

Ocala, Florida, United States

Outcomes

Primary Outcomes

Percentage of Responders With Association Between Clinical Response and Genetic Factor

Participants with clinical response from previous studies will be evaluated for the association with genetic factors (for example, human leukocyte antigen \[HLA\], Cw6 allele). Clinical response in previous studies were evaluated by psoriasis area and severity index (PASI) score: a widely used tool for the measurement of severity of psoriasis. This is a test of how bad a participant's psoriasis is. The scale combines redness, scaling, and thickness, as well as overall body involvement to determine the PASI score, scale ranges from 0 (best) to 72 (worst); and physician global assessment (PGA): The PGA is 6-point scale used in clinical trials of various diseases. In this the physician checks the state of the disease and gives them score from 0 (clear) to 5 (severe). Percentage of participants will be reported.

Time frame: Day 1

Data from ClinicalTrials.gov

This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.