Please select the eligibility criteria that correspond to the clinical trial below.
Title: Pharmacokinetic Evaluations of Ixekizumab Following Subcutaneous Administration Using Prefilled Syringe or Auto-Injector in Patients With Moderate-to-Severe Plaque Psoriasis
Brief Summary: The purpose of this study is to evaluate the serum concentration of ixekizumab after administration using either prefilled syringe or auto-injector in participants with moderate to severe plaque psoriasis. Treatment period is followed by 40 weeks optional safety extension.


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, guttate psoriasis) that would interfere with evaluations of the effect of IP on psoriasis.
* Subject has any active 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: UVB therapy or topical psoriasis therapies other than Class I or II topical steroids
* Subject has used the following therapies within 28 days of the first dose: Class I or II topical steroids, UVA therapy (with or without psoralen), or systemic psoriasis therapies
* Subject has used the following therapies within 3 months of the first dose: adalimumab, alefacept, etanercept, infliximab, certolizumab, or live vaccines
* Subject has used an anti-IL12/IL23 inhibitor within 6 months of the first dose
* Subject has previously used an anti-IL17 biologic therapy, efalizumab, or rituximab
B: Inclusion Criteria:

* Subject was age 18 or older and in good health (Investigator discretion) with a recent stable medical history.
* Subject had a clinical diagnosis of psoriasis for at least 6 months, had moderate to severe plaque psoriasis.
* Subject was able and willing to self-administer sc injections or had available qualified person(s) to administer sc injections

Exclusion Criteria:

* Subject had previously received anti-TNF therapy.
* Subject cannot discontinue systemic therapies and/or topical therapies for the treatment of psoriasis and cannot avoid UVB or PUVA phototherapy
* Subject cannot avoid excessive sun exposure
* Subject is taking or requires oral or injectable corticosteroids
* Subject considered by the investigator, for any reason, to be an unsuitable candidate for the study
* Female subject who is pregnant or breast-feeding or considering becoming pregnant
C: Inclusion Criteria:

* Present with chronic plaque psoriasis based on a confirmed diagnosis of chronic psoriasis vulgaris 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 during the study
* Women must agree to use 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
* Clinically significant flare of psoriasis during the 12 weeks prior to randomization
* Concurrent or recent use of any biologic agent
* Received systemic psoriasis therapy \[such as psoralen and ultraviolet A (PUVA) light therapy\] or phototherapy 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 for cases:

* past or current treatement with TNF-a antagonists
* either lymphoma severe bacterial infection opportunistic infection

Inclusion Criteria for controls:

* matched with cases by gender, age (+/- 5 years), underlying disease (rheumatoid arthritis, ankylosing spondylitis, Crohn's disease, or psoriasis)
* past or current treatement with TNF-a antagonists
* no lymphoma, severe bacterial infection, opportunistic infection (same as case)

Exclusion Criteria:

* none

Answer: C