The primary objective of this post-marketing study is to assess the safety and tolerability of apremilast in pediatric participants (ages 6 through 17 years) with mild to moderate plaque psoriasis.

Inclusion Criteria:

• Participants must have a weight of ≥ 20 kg.
• Participant must have an age and sex specific BMI value no lower in range than the fifth percentile on the growth chart for children and adolescents.
• Participant is able to swallow the study medication tablet.
• Diagnosis of chronic plaque psoriasis for at least 6 months prior to screening.
• Has mild to moderate plaque psoriasis at screening and Study Visit 1 as defined by:
• Psoriasis Area Severity Index score 2-15,
• Body surface area 2-15%, and
• Static Physician Global Assessment score of 2-3 (mild to moderate)
• Disease inadequately controlled by or inappropriate for topical therapy for psoriasis.

Exclusion Criteria:

• Guttate, erythrodermic, or pustular psoriasis at screening and Study Day 1.

• Psoriasis flare or rebound within 4 weeks prior to screening.

• Active tuberculosis (TB) or a history of incompletely treated TB per local guidelines.

• History of recurrent significant infections.

• Active infection or infection treated with antibiotic treatment within 14 days of Study Day 1.

• Any history of or active malignancy or myeloproliferative or lymphoproliferative disease.

• Current use of the following therapies that may have a possible effect on psoriasis:

• Conventional systemic therapy for psoriasis within 28 days prior to Study Day 1 (including but not limited to cyclosporine, corticosteroids, methotrexate, oral retinoids, mycophenolate, thioguanine, hydroxyurea, sirolimus, sulfasalazine, azathioprine, and fumaric acid esters).

• Phototherapy treatment (ie, ultraviolet B [UVB], PUVA) within 28 days prior to Study Day 1.

• Biologic therapy:

  • Etanercept (or biosimilar) treatment 28 days prior to Study Day 1
  • Adalimumab (or biosimilar) treatment 10 weeks prior to Study Day 1
  • Other TNF or IL-17 blockers (such as infliximab, certolizumab pegol, secukinumab, ixekizumab, brodalumab, or their biosimilars) within 12 weeks prior to Study Day 1
  • Anti-IL-12 or anti-IL-23 treatment (such as ustekinumab, guselkumab, or tildrakizumab) within 24 weeks prior to Study Day 1.

• Use of tanning booths or other ultraviolet light sources.

• Answer "Yes" to any question on the Columbia-Suicide Severity Rating Scale during screening or at Study Day 1.

• Female participant of childbearing potential with a positive pregnancy test assessed at screening and/or Study Day 1 by a serum and/or urine pregnancy test.

De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.

Data sharing requests relating to this study will be considered beginning 18 months after the study has ended and either 1) the product and indication have been granted marketing authorization in both the US and Europe or 2) clinical development for the product and/or indication discontinues and the data will not be submitted to regulatory authorities. There is no end date for eligibility to submit a data sharing request for this study.

Qualified researchers may submit a request containing the research objectives, the Amgen product(s) and Amgen study/studies in scope, endpoints/outcomes of interest, statistical analysis plan, data requirements, publication plan, and qualifications of the researcher(s). In general, Amgen does not grant external requests for individual patient data for the purpose of re-evaluating safety and efficacy issues already addressed in the product labelling. Requests are reviewed by a committee of internal advisors. If not approved, a Data Sharing Independent Review Panel will arbitrate and make the final decision. Upon approval, information necessary to address the research question will be provided under the terms of a data sharing agreement. This may include anonymized individual patient data and/or available supporting documents, containing fragments of analysis code where provided in analysis specifications. Further details are available at the URL below.