Please select the eligibility criteria that correspond to the clinical trial below.
Title: A 24-Week Multicenter, Randomized, Blinded, Parallel-Group Study Comparing the Efficacy and Safety of Ixekizumab to Guselkumab in Patients With Moderate-to-Severe Plaque Psoriasis
Brief Summary: The purpose of this study is to compare the efficacy and safety of ixekizumab to guselkumab in participants with moderate-to-severe plaque psoriasis.


Options:
A: Inclusion Criteria:

* Clinical diagnosis of moderate-to-severe plaque psoriasis for at least 6 months prior to enrollment;
* Candidate for phototherapy or systemic therapy;
* Premenopausal female participants must agree to abstain from heterosexual activity or use a medically approved method of contraception or use appropriate effective contraception as per local regulations or guidelines
* For the extension study: must have completed Part 3 of the base study
* For the extension study: must have achieved at least a PASI-50 response by the end of Part 3 of the base study

Exclusion Criteria:

* Non-plaque forms of psoriasis
* Presence or history of severe psoriatic arthritis and is well-controlled on current treatment regimen
* Women of childbearing potential who are pregnant, intend to become pregnant, or are lactating
* Participant is expected to require topical therapy, phototherapy, or systemic therapy during the trial
* Presence of any infection or history of recurrent infection requiring treatment with systemic antibiotics
* Previous use of entanercept, tildrakizumab (MK-3222), or other interleukin-23 (IL-23)/T- helper cell 17 (Th-17) pathway inhibitors including p40, p19, and IL-17 antagonists
* Latex allergy or sensitivity
* Active or untreated latent tuberculosis (TB)
* For the extension study: women of child-bearing potential who are pregnant, intend to become pregnant within 6 months of completing the trial, or are breast feeding
* For the extension study: active or uncontrolled significant organ dysfunction or clinically significant laboratory abnormalities
* For the extension study: expected to require topical treatment, phototherapy, or systemic treatment during the extension study
B: Inclusion Criteria:

1. Males or females, ≥ 18 years of age at the time of signing the informed consent document.
2. Understand and voluntarily sign an informed consent document prior to any study related assessments/procedures being conducted.
3. Able to adhere to the study visit schedule and other protocol requirements.
4. Diagnosis of chronic plaque psoriasis for at least 6 months prior to signing the informed consent.
5. Have moderate plaque psoriasis at screening and baseline as defined by

   1. BSA (Body Surface Area)5% to 10% and
   2. sPGA (Physician's Global Assessment) 3 (moderate) based on a 0 to 5 point scale
6. Must be in general good health (except for psoriasis) as judged by the investigator, based on medical history, physical examination, and clinical laboratories.
7. No prior exposure to systemic treatments or biologics for the treatment of psoriatic arthritis, psoriasis, or any other indication that could impact the assessment of psoriasis.
8. Females of childbearing potential (FCBP)must have a negative pregnancy test at Screening and Baseline. While on investigational product and for at least 28 days after taking the last dose of investigational product, FCBP who engage in activity in which conception is possible must use one of the approved contraceptive§ options described below: Option 1: Any one of the following highly effective methods: hormonal contraception (oral, injection, implant, transdermal patch, vaginal ring); intrauterine device (IUD); tubal ligation; or partner's vasectomy; OR Option 2: Male or female condom (latex condom or nonlatex condom NOT made out of natural \[animal\] membrane \[for example, polyurethane\]) PLUS one additional barrier method: (a) diaphragm with spermicide; (b) cervical cap with spermicide; or (c) contraceptive sponge with spermicide.
9. Male subjects (including those who have had a vasectomy) who engage in activity in which conception is possible must use barrier contraception (male latex condom or nonlatex condom NOT made out of natural \[animal\] membrane \[for example, polyurethane\]) while on investigational product and for at least 28 days after the last dose of investigational product

Exclusion Criteria:

1. Other than psoriasis, any clinically significant (as determined by the Investigator) cardiac, endocrinologic, pulmonary, neurologic, psychiatric, hepatic, renal, hematologic,immunologic disease, or other major disease that is currently uncontrolled.
2. 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.
3. Any condition, including other inflammatory diseases or dermatologic conditions, which confounds the ability to interpret data from the study, including other types of psoriasis (ie, erythrodermic, guttate, inverse, or pustular psoriasis), other than plaque psoriasis.
4. Prior history of suicide attempt at any time in the subject's life time prior to signing the informed consent and randomization, or major psychiatric illness requiring hospitalization within the last 3 years prior to signing the informed consent.
5. Pregnant or breast feeding.
6. Active substance abuse or a history of substance abuse within 6 months prior to signing the informed consent.
7. Malignancy or history of malignancy, except for:

   1. treated (ie, cured) basal cell or squamous cell in situ skin carcinomas;
   2. treated (ie, cured) cervical intraepithelial neoplasia (CIN) or carcinoma in situ of the cervix with no evidence of recurrence within 5 years of signing the informed consent.
8. Topical therapy within 2 weeks of randomization (including, but not limited to, topical corticosteroids, retinoids or vitamin D analog preparations, tacrolimus, pimecrolimus, or anthralin/dithranol). Use of phototherapy within 4 weeks prior to randomization.
9. Use of any investigational drug within 4 weeks prior to randomization, or 5 pharmacokinetic/pharmacodynamic half-lives, if known (whichever is longer).
10. Prolonged sun exposure or use of tanning booths, which may confound the ability to interpret data from the study.
11. Prior treatment with apremilast.
C: Inclusion Criteria:

* Have chronic plaque psoriasis based on a diagnosis for at least 6 months before baseline as determined by the investigator.
* Are a candidate for phototherapy and/or systemic therapy.
* Have both an Static Physician Global Assessment (sPGA) score of ≥3 and a Psoriasis Area and Severity Index (PASI) score ≥12 at screening and at baseline.
* Have ≥10% body surface area (BSA) involvement at screening and baseline.
* If a male, agree to use a reliable method of birth control during the study.
* If female, agree to use highly effective method of contraception.

Exclusion Criteria:

* Predominant pattern of pustular, erythrodermic, and/or guttate forms of psoriasis.
* Have a history of drug-induced psoriasis.
* Had a clinically significant flare of psoriasis during the 12 weeks before baseline.
* Use of tanning booths for at least 4 weeks before baseline.
* Concurrent or recent use of any biologic agent within the following periods prior to baseline: etanercept \<28 days; infliximab, adalimumab, certolizumab pegol, or alefacept \<60 days; golimumab \<90 days; rituximab \<12 months; secukinumab \<5 months; or any other biologic agent (e.g., ustekinumab) \<5 half lives.
* Have prior use of IL-23p19 antagonists (e.g., guselkumab, tildrakizumab, risankizumab), or have any condition or contraindication as addressed in the local labeling for guselkumab that would preclude the participant from participating in this protocol.
* Have previously completed or withdrawn from this study, participated in any other study with ixekizumab or guselkumab, have participated in any study investigating IL-23p19 antagonists, or have received treatment with ixekizumab.
* Have previously failed to respond to an IL-17 antagonist, per investigator assessment.
* Have had a live vaccination within 12 weeks of baseline.
* Have a known allergy or hypersensitivity to any biologic therapy.
* Have had any major surgery within 8 weeks of baseline.
* Have had a serious infection, have been hospitalized, or have received intravenous antibiotics for an infection within 12 weeks of baseline.
* Are women who are pregnant, or who are lactating (breast-feeding).
D: Inclusion Criteria:

NOR-DRUM A

1. A clinical diagnosis of one of the following; rheumatoid arthritis, spondyloarthritis (including ankylosing spondylitis), psoriatic arthritis\*, ulcerative colitis, Crohn's disease or chronic plaque psoriasis
2. Male or non-pregnant female
3. ≥18 and \< 75 years of age at screening
4. A clinical indication to start INX
5. Subject not in remission according to diagnosis-specific disease activity scores
6. Subject capable of understanding and signing an informed consent form

   * Patients with psoriatic arthritis with predominantly axial manifestations should be included and assessed as spondyloarthritis

NOR-DRUM B

1. A clinical diagnosis of one of the following; rheumatoid arthritis, spondyloarthritis (including ankylosing spondylitis), psoriatic arthritis\*, ulcerative colitis, Crohn's disease or chronic plaque psoriasis
2. Male or non-pregnant female
3. ≥18 and \< 75 years of age at screening
4. On maintenance therapy with infliximab for a minimum of 30 weeks and a maximum of 3 years
5. A clinical indication for further infliximab treatment
6. Subject capable of understanding and signing an informed consent form

   * Patients with psoriatic arthritis and predominantly axial manifestations should be included and assessed as spondyloarthritis

Exclusion Criteria:

NOR-DRUM A

1. Major co-morbidities, such as previous malignancies within the last 5 years, severe diabetes mellitus, severe infections (including HIV), uncontrollable hypertension, severe cardiovascular disease (NYHA class 3 or 4), severe respiratory diseases, demyelinating disease, significant chronic widespread pain syndrome, laboratory abnormalities or significant renal or hepatic disease and/or other diseases or conditions where treatment with infliximab is either found contra-indicated by the clinician or which make adherence to the protocol difficult
2. A positive screening for TB and hepatitis
3. Inadequate birth control, pregnancy or subject considering becoming pregnant during the study period
4. Psychiatric or mental disorders, alcohol abuse or other substance abuse, language barriers or other factors which makes adherence to the study protocol difficult
5. Prior use of infliximab within the last 6 months

NOR-DRUM B

1. Major co-morbidities, such as previous malignancies within the last 5 years, severe diabetes mellitus, severe infections, uncontrollable hypertension, severe cardiovascular disease (NYHA class 3 or 4), severe respiratory diseases, demyelinating disease, significant chronic widespread pain syndrome, laboratory abnormalities or significant renal or hepatic disease and/or other diseases or conditions where treatment with infliximab is either found contra-indicated by the clinician or which make adherence to the protocol difficult
2. Inadequate birth control, pregnancy or subject considering becoming pregnant during the study period
3. Psychiatric or mental disorders, alcohol abuse or other substance abuse, language barriers or other factors which makes adherence to the study protocol difficult

Answer: C