Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase 3, Multi-Site, Randomized, Mixed-Blind, Parallel-Group Treatment Withdrawal And Re-Treatment Study Of The Efficacy And Safety Of 2 Oral Doses Of CP-690,550 In Subjects With Moderate To Severe Chronic Plaque Psoriasis
Brief Summary: The primary objectives of the study are to 1) compare the efficacy responses of CP 690,550 (5 mg BID and 10 mg BID) versus placebo following 24 weeks of CP 690,550 treatment and subsequent withdrawal of active treatment at various timepoints during the 16 week double blind active or placebo treatment period; 2) evaluate the regain of efficacy responses of CP 690,550 (5 mg BID and 10 mg BID) following 4 -16 weeks of CP 690,550 treatment withdrawal and subsequent re treatment; and 3) evaluate the safety and tolerability of CP 690,550 (5 mg BID and 10 mg BID) in subjects with moderate to severe chronic plaque psoriasis who are candidates for systemic therapy or phototherapy.


Options:
A: Inclusion Criteria:

* 18 years or older with diagnosis of plaque-type psoriasis (psoriasis vulgaris) for at least 12 months prior to first dose of study drug;
* Psoriasis Area and Severity Index (PASI) score of 12 or greater, AND Physician's Global Assessment (PGA) score of 3 (moderate) or 4 (severe); Psoriasis covering at least 10% of body surface area;
* No evidence of active or latent or inadequately treated infection with Tuberculosis or other serious infections.

Exclusion Criteria:

* Non-plaque or drug induced forms of psoriasis;
* Cannot discontinue current oral, injectable or topical therapy for psoriasis or cannot discontinue phototherapy (Psoralen Ultraviolet A; Ultraviolet B).
* Any uncontrolled significant medical condition.
B: Inclusion Criteria:

* Plaque-type psoriasis diagnosed \>= 6 months prior
* Plaque-type psoriasis covering at least 10% of total body surface areas
* Psoriasis area-and-severity index score of \>=12 at screening and baseline
* Considered by treating dermatologist to be a candidate for phototherapy or systemic treatment of psoriasis
* Women of childbearing potential and all men must agree to use adequate birth control measures throughout the trials and for 12 months following the last injection of study agent
* Have no history of latent or active tuberculosis (TB)

Exclusion Criteria:

* Currently have nonplaque forms of psoriasis or drug-induced psoriasis
* Women who are pregnant or nursing, or men and women planning pregnancy while enrolled in the study
* Patients who have used any therapeutic agent targeted at reducing IL-12 or IL-23
* Patients who have had a Bacillus Calmette-Guerin (BCG) vaccination within the previous 12 months prior to screening
* Patients who have a history of chronic or recurrent infectious disease or who have or have had a serious infection requiring hospitalization or intravenous antibiotics within the previous 2 months prior to screening
* Patients who have or ever have had a nontuberculous mycobacterial infection or opportunistic infection
* Patients known to be infected with human immunodeficiency virus (HIV), hepatitis B, or hepatitis C
* Patients who have current signs or symptoms of severe, progressive, or uncontrolled renal, hepatic, hematological, gastrointestinal, endocrine, pulmonary, cardiac, neurologic, cerebral, or psychiatric disease
* Patients with a malignancy or who have a history of malignancy (with the exception of certain skin cancers and pre-invasive cervical cancer)
* Patients participating in another trial using an investigational agent or procedure
* Systemic immunosuppressants within 4 weeks of the first administration of study agent
C: Inclusion Criteria:

* Presents with chronic plaque psoriasis based on a confirmed diagnosis of chronic psoriasis for at least 6 months prior to randomization
* At least 10% Body Surface Area (BSA) of Psoriasis at screening and at randomization
* Static Physician Global Assessment (sPGA) score of at least 3 and Psoriasis Area and Severity Index (PASI) score of at least 12 at screening and at randomization
* Candidate for phototherapy and/or systemic therapy
* Men must agree to use a reliable method of birth control or remain abstinent during the study
* Women must agree to use reliable birth control or remain abstinent during the study and for at least 12 weeks after stopping treatment

Exclusion Criteria:

* Pustular, erythrodermic, and/or guttate forms of psoriasis
* History of drug-induced psoriasis
* Prior use of etanercept
* Clinically significant flare of psoriasis during the 12 weeks prior to randomization
* Concurrent or recent use of any biologic agent
* Received non-biologic systemic psoriasis therapy or phototherapy (including psoralens and ultraviolet A \[PUVA\], ultraviolet B \[UVB\]) within the previous 4 weeks; or had topical psoriasis treatment within the previous 2 weeks prior to randomization
* Cannot avoid excessive sun exposure or use of tanning booths for at least 4 weeks prior to randomization and during the study
* Have participated in any study with interleukin 17 (IL-17) antagonists, including ixekizumab
* Serious disorder or illness other than plaque psoriasis
* Serious infection within the last 3 months
* Breastfeeding or nursing (lactating) women
D: Inclusion Criteria:

Diagnosis of PsA classified by CASPAR criteria and with symptoms for at least 6 months with moderate to severe PsA who must have at BSL ≥3 tender joints out of 78 and ≥3 swollen joints out of 76 (dactylitis of a digit counts as one joint each).

* Rheumatoid factor (RF) and anti-cyclic citrullinated peptide (anti-CCP) antibodies negative at screening.
* Diagnosis of active plaque psoriasis or nail changes consistent with psoriasis or a documented history of plaque psoriasis.
* Subjects with PsA should have taken NSAIDs for at least 4 weeks prior to randomization with inadequate control of symptoms or at least one dose if stopped due to intolerance to NSAIDs.-Subjects who are regularly taking NSAIDs as part of their PsA therapy are required to be on a stable dose for at least 2 weeks before study randomization and should remain on a stable dose up to Week 24.
* Subjects taking corticosteroids must be on a stable dose of ≤10 mg/day prednisone or equivalent for at least 2 weeks before randomization and should remain on a stable dose up to Week 24.
* Subjects taking MTX (≤ 25 mg/week) are allowed to continue their medication if the dose is stable for at least 4 weeks before randomization and should remain on a stable dose up to Week 52.
* Subjects on MTX must be on folic acid supplementation at randomization.
* Subjects who are on a DMARD other than MTX must discontinue the DMARD 4 weeks prior to randomization visit except for leflunomide, which has to be discontinued for 8 weeks prior to randomization unless a cholestyramine wash-out has been performed.
* Subjects who have been on a TNFα inhibitor must have experienced an inadequate response to previous or current treatment with a TNFα inhibitor given at an approved dose for at least 3 months or have stopped treatment due to safety/tolerability problems after at least one administration of a TNFα inhibitor.
* Subjects who have previously been treated with TNFα inhibitors (investigational or approved) will be allowed entry into study after appropriate wash-out period prior to randomization

Exclusion Criteria:

Chest X-ray or chest MRI with evidence of ongoing infectious or malignant process. - Subjects taking high potency opioid analgesics.

* Previous exposure to secukinumab or other biologic drug directly targeting IL-17 or IL-17 receptor. - Ongoing use of prohibited psoriasis treatments / medications (e.g., topical corticosteroids, UV therapy) at randomization.
* Any intramuscular or intravenous or intra-articular corticosteroid treatment within 4 weeks before randomization.
* Subjects who have ever received biologic immunomodulating agents except for those targeting TNFα (investigational or approved).
* Previous treatment with any cell-depleting therapies including but not limited to anti- CD20, investigational agents
* Other protocol-defined exclusion criteria do apply

Answer: A