Conditions: Psoriasis
Keywords: Psoriasis Chronic Plaque Psoriasis Secukinumab
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 23
Healthy volunteers: no

Brief summary:
Mild psoriasis not only progresses to moderate-to-severe psoriasis but also precedes systemic inflammation that leads to psoriatic arthritis and cardiovascular comorbidities. By curing mild psoriasis with a short-term anti- interleukin (IL)-17A treatment, investigators may reduce the costs of treating psoriasis and associated medical conditions, including psoriatic arthritis, cardiovascular disease, and diabetes.

Detailed description:
Psoriasis is an immune-mediated disease of the skin that, even in mild disease, increases the risk of comorbidities such as cardiovascular disease and metabolic derangements. Mild psoriasis tends to be treated with topical drugs, while moderate-to-severe disease is optimally treated with systemic immune modulators. However, the treatment of "mild" psoriasis needs to be re-thought because recent studies have revealed that mild psoriasis is characterized by stronger expression of pathogenic molecules, such as interleukin (IL)-17A, and higher numbers of T cells in the skin, compared to severe psoriasis. A key distinction between mild and severe psoriasis is now discovered to be the higher expression of negative immune regulatory genes in mild lesions. Therefore, targeted immune therapy with anti-IL-17A, which is highly effective in severe psoriasis, might be equally (or even more) effective in mild disease. Also, restoration of immune tolerance might be more easily achieved in mild disease. Thus, short-term anti-IL-17A treatment of mild psoriasis might prevent the recurrence and eventually cure the disease. The aim of study is to test this hypothesis by exploring whether 3 months or 6 months of anti-IL17A treatment will prevent relapses after medication has been discontinued in mild psoriasis patients.

Arms:
arm 1: 6 months of Secukinumab at a dose of 300 mg with injections administered once weekly at baseline and at weeks 1, 2, 3, and 4 and then every 4 weeks for 6 months of period. arm 2: Placebo followed by Secukinumab. 3 months of placebo followed by 3 months of Secukinumab at a dose of 300 mg with injections administered once weekly at week 12 and at weeks 13, 14, 15, and 16 and then every 4 weeks for 3 months of period.

Interventions: intervention 1: Secukinumab intervention 2: Placebo followed by Secukinumab
Intervention descriptions: intervention 1: Arms: Group 1 - Group 1 will receive Secukinumab at a dose of 300 mg with injections administered once weekly at baseline and at weeks 1, 2, 3, and 4 and then every 4 weeks for 6 months of period. In order to maintain the blind for the Group 2, Group 1 will receive placebo injections at weeks 13, 14, and 15. Group 1 will discontinue Secukinumab after 6 months of period being observed from week 25 to week 72 (48 weeks). intervention 2: Arms: Group 2 - Group 2 will receive placebo injections corresponding to the Group 1 regimen until week 8 in order to maintain a double-dummy design until week 12. From week 12, Group 2 will receive Secukinumab with injections administered once weekly at week 12 and at weeks 13, 14, 15, and 16 and then every 4 weeks for 3 months of period. Group 2 will discontinue Secukinumab after 6 months of period being observed from week 25 to week 72 (48 weeks).

Protocol document:
Prot_SAP_000.pdf: 
NCT03131570
Protocol Date 08/19/2021