The population of people living with moderate to severe psoriasis is approximately 3.5 billion who are mostly managed with topical and conventional therapies. JNJ-77242113, investigational drug, targets the immune responses in the body and skin which impacts diseases, such as psoriasis and psoriatic arthritis and this study evaluates JNJ-77242113 as options of advanced therapies in moderate to severe plaque psoriasis. The hypothesis of this study is that an oral tablet formulation of JNJ-77242113 will result in superior efficacy compared with placebo as determined by the percentage of participants achieving Psoriasis Area and Severity Index (PASI) 75 (greater than or equal to [>=] 75 percentage [%] improvement in PASI) (PASI 75) response at Week 16. The total duration of this study is up to 24 weeks which includes a screening period of less than or equal to (<=) 4 weeks, a 16-week placebo- controlled treatment period, and a follow-up visit approximately 4 weeks after the last administration of study intervention. Safety assessments include adverse events (AEs) monitoring, clinical safety laboratory assessments, electrocardiograms (ECGs), vital signs, physical examinations, concomitant medication monitoring, pregnancy testing, Columbia Suicide Severity Rating Scale (C-SSRS) and tuberculosis evaluations.
The purpose of the study is to evaluate the efficacy of an oral tablet formulation of JNJ-77242113 compared with placebo in participants with moderate-to-severe plaque psoriasis.