Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Randomized, Double-blind, Placebo-controlled Parallel Group Study in Subjects With Plaque Psoriasis
Brief Summary: This study is designed to evaluate the efficacy and safety of KHK4827 in subjects with moderate to severe plaque psoriasis in a randomized, double-blind, placebo-controlled, parallel group study. Pharmacokinetics of KHK4827 will also be assessed.


Options:
A: Inclusion Criteria:

* Subject has had stable moderate to severe plaque psoriasis for at least 6 months.
* Subject has received at least one previous phototherapy or systemic psoriasis therapy or has been a candidate to receive phototherapy or systemic psoriasis therapy in the opinion of the investigator.
* Subject has involved BSA ≥ 10% and PASI ≥ 12 at screening and at baseline.

Exclusion Criteria:

* Subject diagnosed with erythrodermic psoriasis, pustular psoriasis, medication-induced, or medication-exacerbated psoriasis.
* Evidence of skin conditions at the time of the screening visit (eg, eczema) that would interfere with evaluations of the effect of investigational product on psoriasis.
* Subject has any active Common Terminology Criteria for Adverse Events (CTCAE) grade 2 or higher infection
* Subject has a significant concurrent medical condition or laboratory abnormalities, as defined in the study protocol.
* Subject has used the following therapies within 14 days of the first dose: topical calcineurin inhibitors including tacrolimus

  , topical vitamin A, activated form D3 or activated form D3 analogue preparations, weak through strong topical steroids (excluding application on the scalp, axillae, and groin)
* Subject has used the following therapies within 28 days of the first dose: any other systemic psoriasis therapy (eg, vitamin A, calcineurin inhibitors, methotrexates, steroids), UVA therapy (with or without psoralen), very strong or strongest topical steroid, tar therapy
* Subject has used the following therapies within 3 months of the first dose: adalimumab, etanercept, infliximab, or live vaccines
* Subject has used ustekinumab within 6 months of the first dose
* Subject has previously used an anti-interleukin-17 biologic therapy
B: Inclusion Criteria:

* patients with psoriasis
* Age and sex matched patients with CAD, with untreated hypertension and healthy subjects

Exclusion Criteria:

* for psoriasis patients were presence of wall motion abnormalities and ejection fraction ≤ 50%, psoriatic arthritis, history of acute coronary syndrome, familial hyperlipidemia, insulin dependent-diabetes mellitus, chronic obstructive pulmonary disease or asthma, moderate or severe valvular heart disease, primary cardiomyopathies and malignant tumors. CAD was excluded in psoriasis patients by absence of clinical history, angina and reversible myocardial ischemia, as assessed by dobutamine stress echocardiography or thallium scintigraphy
* regarding the group of CAD patients, we only included patients without history of ST elevation myocardial infarction in order to exclude the presence of transmural scar compromising myocardial function indices. Thus, CAD patients with wall motion abnormalities and ejection fraction of ≤ 50% were excluded. In addition, exclusion criteria, were history of acute coronary syndrome without ST-segment elevation within the last year, familial hyperlipidemia, insulin dependent-diabetes mellitus, chronic obstructive pulmonary disease or asthma, moderate or severe valvular heart disease, primary cardiomyopathies and malignant tumor
* in normal controls, CAD was excluded by the presence of normal ECG, absence of clinical history and absence of reversible ischemia by means of treadmill test or dobutamine stress echocardiography
C: Inclusion Criteria:

* Patients should have diagnosis of plaque-type psoriasis for at least 6 months prior to first administration of study agent (patients with concurrent psoriatic arthritis may be enrolled)
* Moderate-to-severe psoriasis scored as PASI \>= 10 at screening and at the time of first administration of ustekinumab
* Should currently receive (and have been receiving for at least 8 weeks directly prior to screening) systemic therapy with methotrexate at a dose of at least 10 mg/week but not exceeding 25 mg/week, with an inadequate response to this treatment (due to either efficacy or tolerability) and, in the judgment of the treating physician and patient, a treatment change is needed
* Women should take adequate birth control measures throughout the study and must agree to continue to use such birth control measures and not to become pregnant or plan to become pregnant for at least 15 weeks after the last dose of ustekinumab and for at least 6 months after the last dose of methotrexate
* Men must be using adequate birth control measures whilst receiving methotrexate and for 6 months after the last dose of methotrexate

Exclusion Criteria:

* Patients should not have non-plaque forms of psoriasis (eg, erythrodermic, guttate, or pustular)
* Should currently (and within 12 months) not receive ciclosporin, fumarates, PUVA, etanercept, efalizumab, infliximab, adalimumab or alefacept or other biologic or systemic therapy (and other therapy as indicated in the protocol)
* Women who are pregnant, breastfeeding, or planning pregnancy (both men and women) while enrolled in the study
* Have previously failed treatment with any therapeutic agent directly targeted at reducing IL-12 or IL-23, including, but not limited to, ustekinumab and ABT-874
* Active or latent Tuberculosis or other chronic or recurrent infectious disease
* Known history of lymphoproliferative disease
* Known malignancy or history of malignancy
D: Inclusion criteria:

* Moderate and severe plaque-type psoriasis diagnosed for at least 6 months.
* Severity of psoriasis disease meeting all of the following three criteria:
* Psoriasis Area and Severity Index (PASI) score of 12 or greater,
* Investigator's Global Assessment (IGA) score of 3 or greater,
* Total body surface area (BSA) affected of 10% or greater.
* Inadequate control by prior use of topical treatment, phototherapy and/or systemic therapy.

Exclusion criteria:

* Current forms of psoriasis other than chronic plaque-type psoriasis (for example, pustular, erythrodermic, guttate).
* Current drug-induced psoriasis.
* Previous use of secukinumab or any drug that targets IL-17 or IL-17 receptor.
* Significant medical problems such as uncontrolled hypertension, congestive heart failure or a condition that significantly immunocompromises the subject.
* Hematological abnormalities.
* History of an ongoing, chronic or recurrent infectious disease, or evidence of untreated tuberculosis.
* History of lymphoproliferative disease or history of malignancy of any organ system within the past 5 years.
* Pregnant or nursing (lactating) women.
* Subjects not willing to limit UV light exposure during the study Other protocol-defined inclusion/exclusion criteria may apply.

Answer: A