Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase 3 Multicenter Study to Assess the Efficacy and Safety of Etanercept 50 mg Twice Weekly in Psoriasis
Brief Summary: The purpose of this study is to determine the effect of etanercept 50 mg twice weekly compared to placebo over 12 weeks on the psoriasis area and severity index (PASI) in subjects with psoriasis. This study will also evaluate the safety and tolerability of etanercept 50 mg twice weekly; determine the effect of etanercept 50 mg twice weekly on patient reported outcomes (PRO); and characterize the pharmacokinetics (PK) profile of etanercept 50 mg twice weekly.


Options:
A: Inclusion Criteria:

* Subject has had stable moderate to severe plaque psoriasis for at least 6 months
* Subject must be considered, in the opinion of the investigator, to be a suitable candidate for treatment with a biologic per regional labeling
* Subject has involved body surface area (BSA) ≥ 10%, PASI ≥ 12, and sPGA ≥ 3 at screening and at baseline

Exclusion Criteria:

* Subject diagnosed with erythrodermic psoriasis, pustular psoriasis, guttate psoriasis, medication-induced psoriasis, or other skin conditions at (eg, eczema) that would interfere with study evaluations
* Subject has known history of Crohn's disease
* Subject has any other significant concurrent medical condition or laboratory abnormalities, as defined in the study protocol
* Subject has stopped using certain psoriasis therapies as defined in the study protocol
* Subject has previously used any anti-IL-17 biologic therapy
B: Inclusion Criteria: - Active, but clinically stable, plaque psoriasis involving greater than or equal to 10% of the body surface area - A minimum PASI score of 10 obtained during the screening period Exclusion Criteria: - Active guttate, erythrodermic, or pustular psoriasis at the time of the screening visit - Evidence of skin conditions at the time of the screening visit (e.g., eczema) that would interfere with evaluations of the effect of an investigational product on psoriasis
C: Inclusion Criteria Common to Both Part A:

* Participant must have active plaque psoriasis covering at least 10% body surface area and a PASI score of at least 12 at screening and at randomization.
* Participant is a candidate for systemic therapy
* Participant has a Static Physician's Global Assessment (sPGA) score of at least 3 at screening and at randomization

Inclusion Criterion Specific to Part B

* Participant has completed the treatment period for part A (at least through week 20)

Inclusion Criterion Specific to Part C

* Participant has completed the treatment period for part B

Exclusion Criteria Common to Part A, B and C:

* Participant has pustular, erythrodermic and/or guttate forms of psoriasis
* Participant has had a clinically significant flare of psoriasis during the 12 weeks prior to study entry
* Participant has recently used any biologic agent/monoclonal antibody within the following washout periods: etanercept \>28 days, infliximab or adalimumab \>56 days, alefacept \>60 days, ustekinumab \>8 months, or any other biologic agent/monoclonal antibody \>5 half-lives prior to baseline
* Participant has received systemic psoriasis therapy (such as psoralen and ultraviolet A \[PUVA\] light therapy, cyclosporine, corticosteroids, methotrexate, oral retinoids, mycophenolate mofetil, thioguanine, hydroxyurea, sirolimus, azathioprine) or phototherapy (including ultraviolet B or self-treatment with tanning beds) within the previous 4 weeks; or had topical psoriasis treatment within the previous 2 weeks prior to randomization (exception: class 6 \[mild, such as desonide\] or 7 \[least potent, such as hydrocortisone\] topical steroids will be permitted for use limited to the face, axilla, and/or genitalia)
* Participant has donated more than 500 mL of blood within the last month
* Participant has another serious disorder or illness
* Participant has suffered a serious bacterial infection (for example, pneumonia, and cellulitis) within the last 3 months
* Participant has a history of uncontrolled high blood pressure
* Participant has clinical laboratory test results at entry that are outside the normal reference range
* Participant is currently participating in or were discontinued within the last 30 days from another clinical trial involving an investigational drug
* Participant is a woman who is lactating or breast feeding
* If a participant is a woman and could become pregnant during this study, she must talk to the study doctor about the birth control that you will use to avoid getting pregnant during the study
* If a participant is post menopausal woman, she must be at least 45 years of age and have not menstruated for the last 12 months
* If a participant is a woman between 40-45 years of age, test negative for pregnancy, and have not menstruated during the last 12 months only, she must have an additional blood test to see if you can participate
* If the participant is male, he must agree to reduce the risk of female partner becoming pregnant during the study

Exclusion Criteria Specific to B:

* If a participant experienced a serious adverse event during Part A considered possibly related to ixekizumab
* If a participant experienced an adverse event during Part A that the study doctor believes continued ixekizumab treatment could cause harm to the participant.

Exclusion Criteria Specific to C:

* If a participant experienced a Serious Adverse Event during Part B considered possibly related to ixekizumab
* If a participant experienced an adverse event during Part B that the study doctor believes continued ixekizumab treatment could cause harm to the participant.
D: Inclusion Criteria:

Subjects must satisfy the following criteria to be enrolled in the study:

1. Subject must be male or female, ≥18 years of age at the time of signing the informed consent form (ICF).
2. Subject must have a diagnosis of chronic plaque psoriasis for at least 6 months prior to signing the ICF.
3. Subject must have a diagnosis of mild to moderate plaque psoriasis at both Screening and Baseline.
4. Subject must be inadequately controlled with or intolerant of at least one topical therapy at both Screening and Baseline.
5. Subject must be in good health (except for psoriasis) as judged by the investigator, based on medical history, physical examination, clinical laboratories, and urinalysis.
6. Subject must meet laboratory criteria.
7. Subject has not had prior exposure to biologics for the treatment of psoriatic arthritis or psoriasis, or any other condition that could impact the assessment of psoriasis.

Exclusion Criteria:

The presence of any of the following will exclude a subject from enrollment:

1. Subject has any significant medical condition, laboratory abnormality, or psychiatric illness that would prevent the subject from participating in the study.
2. Subjects has any condition, including the presence of laboratory abnormalities, which would place the subject at unacceptable risk if he/she were to participate in the study.

2. Subject has hepatitis B surface antigen positive at Screening. 3. Subject has active tuberculosis (TB) or a history of incompletely treated TB.

4. Subject has history of positive human immunodeficiency virus (HIV), or has congenital or acquired immunodeficiency (eg, common variable immunodeficiency disease).

5. Subject has hepatitis B surface antigen or anti-hepatitis C antibody positive at Screening.

6. Subject has prior history of suicide attempt at any time in the subject's life time or major psychiatric illness requiring hospitalization within the last 3 years prior to signing the informed consent. 7. Subject has current or planned concurrent use of therapies that may have a possible effect on psoriasis during the course of the treatment phase of the trial.

8. Use of any investigational drug beginning 4 weeks prior to randomization, or 5 pharmacokinetic/pharmacodynamic half-lives, if known (whichever is longer).

9. Subject had prior treatment with apremilast.

Answer: B