Last updated on May 2020

Extension Study to Assess Effects of Non-interrupted Versus Interrupted and Long Term Treatment of Two Dose Regimes of Secukinumab in Subjects With Hidradenitis Suppurativa

Brief description of study

The purpose of this extension study is to evaluate maintenance of HiSCR response at Week 104 in either continuous or interrupted therapy (using a randomized withdrawal period) of two dose regimens and to assess long-term efficacy, safety and tolerability of secukinumab in subjects with moderate to severe hidradenitis suppurativa completing either of the 2 Phase III studies. This is an expanded access trial for the core trials AIN457M2301 (NCT 0313632) and AIN567M2302 (NCT03713619).

Detailed Study Description

This is a multicenter extension study to both core Phase III studies CAIN457M2301 and CAIN457M2302 (Core studies). This study contains a randomized withdrawal design, double blinded and placebo controlled up to Week 104 or loss of response. The subjects with HiSCR response after 52 weeks of treatment in the "Core studies" will be randomized at 2:1 ratio to either continue on one of the two secukinumab dosing regimens assigned in "Core studies" for another 52 weeks or will be placed on placebo. The primary endpoint is loss of response (LOR) assessed during the 52-week treatment duration (up to Week 104). Subjects who attained LOR will be transferred to open-label treatment to continue until the end of the study. Subjects on placebo who did not reach LOR up to Week 104 will be offered to continue in the open-label treatment or discontinue the study. Thus for subjects who were HiSCR responders at Week 52 of "Core studies", the open label treatment duration will vary and start either from the time of LOR or from Week 104 dose and last until Week 260 followed by 8 weeks of a post treatment follow-up period to week 268.

Subjects who were HiSCR non-responders at the end of "Core studies" will be offered to continue in open-label treatment until Week 260.

Subjects who prematurely discontinue the study, or who complete the study will enter a post-treatment follow up period (8 weeks) The primary objective is to evaluate maintenance of HiSCR reponse at Week 104 in either continuous or interrupted therapy compared to placebo. Secondary objectives are to assess the long-term safety and tolerability evaluated by adverse events, abnormal laboratory values and vital signs.

Clinical Study Identifier: NCT04179175

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Recruitment Status: Open

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