Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase 2, Multicenter, Randomized, Double-blind, Placebo-controlled Trial of CNTO 1275, a Fully Human Anti-IL-12 Monoclonal Antibody, Administered Subcutaneously, in Subjects With Active Psoriatic Arthritis
Brief Summary: The purpose of this study is to evaluate the effectiveness and safety of CNTO 1275 (ustekinumab) in patients with psoriatic arthritis.


Options:
A: Inclusion criteria:

* Body Mass Index (BMI) \>/= 18.5 and \< 40 kg/m²
* Patients with stable moderate to severe chronic plaque-type psoriasis with or without psoriatic arthritis involving \>/= 10% body surface area, with disease severity PASI \>/= 12 and sPGA score of moderate and above (score of at least 3) at screening visit and visit 2 (randomisation), as assessed by the investigator
* Psoriasis disease duration of at least 6 months prior to screening, as assessed by the investigator
* Patients must be candidates for systemic psoriasis treatment or phototherapy, as assessed by the investigator
* Patients must be suitable candidates for ustekinumab (Stelara®) therapy as given in the local labelling
* Patient must give informed consent and sign an approved consent form prior to any study procedures in accordance with GCP and local legislation

Exclusion criteria:

* Patients with guttate, erythrodermic, or pustular psoriasis and patients with drug-induced psoriasis, as diagnosed by the investigator
* Evidence of current or previous clinically significant disease, medical condition other than psoriasis, or finding of the medical examination (including vital signs and ECG), that in the opinion of the investigator, would compromise the safety of the patient or the quality of the data. This criterion provides an opportunity for the investigator to exclude patients based on clinical judgment, even if other eligibility criteria are satisfied. (Psoriatic arthritis is not considered an exclusion criterion)
* Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders, diseases of the central nervous system (such as epilepsy) or psychiatric disorders or neurological disorders, or history of orthostatic hypotension, fainting spells or blackouts, that in the investigator's judgement, could jeopardize the safe conduct of the study.
* Clinically important acute or chronic infections including hepatitis and HIV.

With regards to tuberculosis the following applies:

Have signs or symptoms suggestive of current active or latent TB upon medical history, physical examination and/or a chest radiograph (both posterior-anterior and lateral views, taken within 3 months prior to the first administration of study drug and read by a qualified radiologist).

Have history of latent or active TB prior to screening, except for patients who have documentation of having completed an adequate treatment regimen at least 6 months prior to the first administration of study agent.

Have positive IGRA testing (QuantiFERON-TB Gold) within 2 months prior to or during screening, in which active TB has not been ruled out, except for patients with history of latent TB and documentation of having completed an adequate treatment regimen at least 6 months prior to the first administration of study agent.

* Have had a live vaccination \</= 12 weeks prior to randomisation (visit 2). Patients must agree not to receive a live vaccination during the study. No BCG vaccines should be given for one year prior to randomisation (visit 2), during the study and for one year after last administration of study drug (according to the Stelara® SPC).
* History of clinically significant hypersensitivity to a systemically administered biologic agent or its excipients
* History of malignancy in the past 5 years or suspicion of active malignant disease except treated cutaneous squamous cell or basal cell carcinoma
* Has received any therapeutic agent directly targeted to IL-12, IL-23 (including ustekinumab (Stelara®))
* Use of biologic agents within 12 weeks (infliximab, etanercept, adalimumab, other biologics) prior to treatment, systemic anti-psoriatic medications or phototherapy within 4 weeks prior to treatment, or topical anti-psoriasis medications within 2 weeks prior to treatment
B: Inclusion Criteria:

1. Males and females 18 years of age and older.
2. Clinical diagnosis of psoriasis for at least 6 months as determined by subject interview of his/her medical history and confirmation of diagnosis through physical examination by Investigator.
3. Stable plaque psoriasis for at least 2 months before Screening and at Baseline (Week 0) as determined by subject interview of his/her medical history.
4. Moderate to severe psoriasis defined by ≥ 10 percent Body Surface Area (BSA) involvement at the Baseline (Week 0) visit.
5. PASI (psoriasis assessment and severity index) score of ≥ 12 at the Baseline (Week 0) visit.
6. Subject is a candidate for systemic therapy or phototherapy and has active psoriasis despite prior treatment with topical agents.
7. Women are eligible to participate in the study if they meet one of the following criteria:

   1. Women of childbearing potential who are willing to undergo regular pregnancy testing and agree to use one method of contraception throughout the study are eligible to participate
   2. Women who are postmenopausal (for at least one year), sterile, or hysterectomized are eligible to participate
   3. Women who have undergone tubal ligation are eligible to participate
   4. Women who agree to be sexually abstinent, defined as total abstinence from sexual intercourse, as a form of contraception are eligible to participate in the study.
8. Subject is judged to be in good general health as determined by the Principal Investigator based upon the results of medical history, laboratory profile, physical examination, and 12-lead electrocardiogram (ECG) performed at screening.
9. Able and willing to give written informed consent and to comply with requirements of this study protocol.

Exclusion Criteria:

1. Previous adverse event following exposure to a TNF-alpha antagonist and/or UV phototherapy that led to discontinuation of either of these therapies and contraindicates future treatment.
2. Previous lack of response to a TNF-alpha antagonist and/or UV phototherapy that led to discontinuation of either of these therapies.
3. Diagnosis of erythrodermic psoriasis, generalized or localized pustular psoriasis, medication-induced or medication-exacerbated psoriasis, or new onset guttate psoriasis.
4. Diagnosis of other active skin diseases or skin infections (bacterial, fungal, or viral) that may interfere with evaluation of psoriasis.
5. Cannot avoid UVB phototherapy for at least 14 days prior to the Baseline (Week 0) visit.
6. Cannot avoid psoralen-UVA phototherapy for at least 30 days prior to the Baseline (Week 0) visit and during the study.
7. Cannot discontinue systemic therapies for the treatment of psoriasis, or systemic therapies known to improve psoriasis, during the study:

   * Systemic (investigational or marketed) therapies must be discontinued at least 30 days prior to the Baseline (Week 0) visit except for biologics.

     * All biologics, except ustekinumab, must be discontinued for at least 90 days prior to Baseline (Week 0).
     * The IL-12/IL-23 antagonist ustekinumab (half-life of 45.6 ± 80.2 days) must be discontinued for at least 180 days prior to Baseline (Week 0).
   * Investigational agents must be discontinued at least 30 days or 5 half-lives (whichever is longer) prior to the Baseline (Week 0) visit.
8. Subject is taking or requires oral or injectable corticosteroids during the study. Inhaled corticosteroids for stable medical conditions are allowed.
9. Poorly controlled medical condition, such as unstable ischemic heart disease, congestive heart failure, recent cerebrovascular accidents, psychiatric disease requiring frequent hospitalization, and any other condition, which, in the opinion of the Investigator, would put the subject at risk by participation in the study.
10. History of diabetes mellitus, type 1 or type 2 - note that patients with type 2 diabetes may be enrolled if the duration of diabetes is \<10 years and HbA1c is \<7.0%)
11. Uncontrolled hypertension, with measured systolic blood pressure \>180 mmHg or diastolic blood pressure \>90 mmHg
12. History of demyelinating diseases or lupus.
13. Subject has infection or risk factors for severe infections, for example:

    * Positive serology or known history of HIV, hepatitis B or C, or other severe, recurrent, or persistent infections;
    * Excessive immunosuppression or other factors associated with it, including human immunodeficiency virus infection;
    * Active tuberculosis (TB) disease;
    * Evidence of latent TB infection demonstrated by Purified Protein Derivative (PPD) ≥ 5 mm of induration or positive Quantiferon-GOLD results; except if prophylactic treatment for TB, as recommended by local guidelines, is initiated prior to administration of study drug or if there is documentation that the subject has received prophylactic treatment for TB previously.
    * Any other significant infection requiring hospitalization or intravenous (IV) antibiotics in the month prior to Baseline;
    * Infection requiring treatment with oral or parenteral antibiotics within 14 days prior to Baseline;
    * Subject has received vaccination with Bacille Calmette-Guerin (BCG) within 365 days prior to Screening;
    * Subject has received vaccination with a live viral agent 30 days prior to Screening or will require a live vaccination during study participation including up to 30 days after the last dose of study drug.
14. Subject has history of hematological or solid malignancy other than successfully treated basal cell carcinoma, non-metastatic cutaneous squamous cell carcinoma or cervical carcinoma in situ.
15. Female subject who is pregnant or breast-feeding or considering becoming pregnant during the study.
16. Screening clinical laboratory analyses showing any of the following abnormal results:

    * Hemoglobin (Hgb) \< 10 g/dL in females or \<12 g/dL in males;
    * White blood cell (WBC) count \<2.5 x 109/L

      o Subject can be included if WBC count is \<2.5 x x 109/L and absolute neutrophil count (ANC) is \>1000 cells / mm3.
    * WBC count \> 15 x 109/L;
    * Platelet count \< 100 x 109/L;
    * Serum aspartate transaminase (AST) or alanine transaminase (ALT) \>2.5 upper limits of normal (ULN);
    * Serum total bilirubin ≥2 mg/dL (≥26 µmol/L); or
    * Serum creatinine \>1.6 mg/dL (\>141 µmol/L).
17. Recent history of substance abuse or psychiatric illness that could preclude compliance with the protocol.
18. History of any substance abuse within 365 days of screening visit
19. Alcohol use \>14 drinks per week at the screening visit or within 30 days of the screening period
20. If subject is on cholesterol-lowering medication (e.g. statin), dose and form of medication must be stable for 90 days prior to week 0 and remain stable throughout the duration of the study.
21. History of photosensitivity of medical condition that may be exacerbated by UV exposures such as lupus or dermatomyositis
C: Inclusion Criteria:

* Adult with Diagnosis of chronic plaque psoriasis of the Hands and Feet for at least 6 months, with a PGA \>/=3 and candidates for systemic therapy;
* Patients in good general health
* Able to self-administer injections
* Negative chest x-ray (CXR) and purified protein derivative (PPD) test, unless willing to start anti-tuberculosis (TB) prophylaxis

Exclusion Criteria:

* Previous treatment with HUMIRA®
* Required mediation stability or washouts for: systemic corticosteroids (28 days), other investigational agent, other systemic therapies for psoriasis, ultraviolet B (UVB), psoralen with UVA (PUVA)
* Other active skin diseases or skin infections
* Diagnosis of palmoplantar pustulosis; erythrodermic psoriasis, pustular psoriasis, medication-induced or exacerbated psoriasis or new onset of guttate psoriasis
* Evidence of dysplasia or history of malignancy (Other than a successfully treated non-metastatic cutaneous squamous cell, basal cell carcinoma or localized carcinoma in situ of the cervix);
* History of listeriosis, histoplasmosis, chronic or active Hepatitis B infection, human immunodeficiency virus (HIV) infection, immunodeficiency syndrome, chronic recurring infections or active tuberculosis (TB);
* History of moderate to severe congestive heart failure,
* Recent cerebrovascular accident and any other condition which, in the opinion of the investigator, would put the subject at risk;
* History of central nervous system (CNS) demyelinating disease or neurologic symptoms suggestive of CNS demyelinating disease;
* History of clinically significant drug or alcohol abuse in the last 12 months;
* Infection(s) requiring treatment with intravenous (IV) antibiotics, IV antivirals, or IV antifungals within 30 days prior to Baseline or oral antibiotics, oral antivirals, or oral antifungals within 14 days prior to Baseline;
* Known hypersensitivity to the excipients of HUMIRA® as stated in the label;
* Female subjects who are pregnant or breast-feeding or considering becoming pregnant during the study.
* Prior exposure to Tysabri® (natalizumab)
D: Inclusion Criteria:

* Have had active psoriatic arthritis for at least 6 months prior to administration of first study injection
* Have an active plaque psoriasis (defined as a lesion of at least 2 cm in diameter), but not in armpits, on chest between breasts or groin
* Women of childbearing potential and all men must be using an effective method of birth control measures (eg, abstinence, oral contraceptives, intrauterine device, barrier method with spermicide, or surgical sterilization) and must agree to continue to use such measures until 12 months after receiving the last injection of study agent
* Have an active arthritis despite disease-modifying anti-rheumatic drugs (DMARD) such as leflunomide, gold, sulfasalazine, but not including methotrexate) or non-steroidal anti-inflammatory agents (NSAID) such as aspirin, ibuprofen, naproxen) therapy. DMARD therapy is defined as taking a DMARD for at least 3 months, or evidence of not tolerating DMARD. NSAID therapy is defined as taking an NSAID for at least 4 weeks
* If the patients are using methotrexate (MTX), they should have started treatment at least 3 months prior to the first administration of study agent and should have no serious toxic side effects attributable to MTX
* Have no signs or symptoms suggestive of active tuberculosis upon medical history, physical examination and chest X-ray

Exclusion Criteria:

* Have received DMARDs, other than methotrexate, within 4 weeks prior to the randomization visit
* Have used any biologic within the previous 3 months or 5 times the half-life of the biologic, whichever is longer
* Have received any oral, intravenous or intramuscular medications/treatments that could affect psoriasis (including, but not limited to, oral or injectable corticosteroids, retinoids, 1,25 dihydroxy vitamin D3 and analogues, psoralens, sulfasalazine, hydroxyurea, fumaric acid derivatives, or phototherapy) within 4 weeks of the randomization visit and/or have used topical medications/treatments that could affect psoriasis (eg, corticosteroids, anthralin, calcipotriene, topical vitamin D derivatives, retinoids, tazarotene, methoxsalen, trimethylpsoralens) within 2 weeks of the randomization visit
* Have a history of chronic or recurrent infectious disease, including but not limited to chronic renal infection, chronic chest infection (eg, bronchiectasis), recurrent urinary tract infection (recurrent pyelonephritis or chronic nonremitting cystitis), or open, draining, or infected skin wounds or ulcers
* Have a history of latent or active granulomatous infection, including tuberculosis (TB), histoplasmosis, or coccidioidomycosis, prior to screening
* Have current signs or symptoms of severe, progressive, or uncontrolled kidney, liver, blood, intestinal, hormonal, lung, heart, nervous, brain, or psychiatric disease
* Have any known cancer or have a history of cancer within the previous 5 years (with the following exception: have had basal cell carcinoma or squamous cell carcinoma in situ of the skin that has been treated, with no evidence of recurrence)

Answer: D