The purpose of this study was to demonstrate superiority of secukinumab at Week 16, based on Hidradenitis Suppurativa Clinical Response (HiSCR) rates versus placebo, along with the maintenance of efficacy of secukinumab at Week 52 in subjects with moderate to severe HS. Moreover, this study also assessed the safety and tolerability of secukinumab.
This was a multicenter, randomized, double-blind, placebo-controlled, parallel group study with two secukinumab dose regimens in 541 patients with moderate to severe HS. The study consisted of: screening (up to 4 weeks) treatment period 1 (16 weeks, active drug or placebo) and treatment period 2 (up to 1 year all patients on active drug); there was an optional extension study (NCT04179175). Adult males and females with moderate to severe HS were included, with a diagnosis of HS greater than 1 year prior to baseline. Dosing was once every 2 weeks, or once every 4 weeks via pre-filled syringe; periodic home-dosing is included. In Treatment Period 1, participants were randomized to secukinumab Q2W, secukinumab Q4W, placebo Q2W or placebo Q4W in 1:1:0.5:0.5 ratio. In Treatment Period 2, at the Week 16 visit participants initially randomized to placebo were switched to one of the two active dose regimens (secukinumab Q2W or Q4W), while subjects randomized to secukinumab during Treatment Period 1 continued on the same dose. At the Week 16 visit, subjects initially randomized to placebo were switched to one of the two active dose regimens (secukinumab Q2W or Q4W), while subjects randomized to secukinumab during Treatment Period 1 continued on the same dose. The primary objective was to demonstrate the efficacy of secukinumab compared to placebo with respect to HISCR after 16 weeks of treatment; secondary objectives were to assess difference in proportion of patients with HS flares, and proportion of patients with clinical response in HS related skin pain after 16 weeks of treatment. Key safety data was collected, along with Patient Reported Outcomes.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
544
Secukinumab 300mg every 2 or every 4 weeks
Placebo 300mg every 2 or every 4 weeks
Percentage of Participants With Hidradenitis Suppurativa Clinical Response (HiSCR50)
HiSCR50 at Week 16 is defined as at least a 50% decrease in Abscess and inflammatory Nodule (AN) count compared to baseline with no increase in the number of abscesses and/or in the number of draining fistulas from baseline to Week 16. The baseline is defined as the last assessment (including unscheduled visits) obtained before/on the day of the first administration of the study treatment, or on the randomization date if there had been no drug administration. This endpoint was analyzed by logistic regression.
Time frame: 16 weeks
Percentage Change From Baseline in AN50 Count at Week 16
The HS affected areas, e.g. right and left axillary (armpit), right and left gluteal ("buttock"), right and left inguinal-femoral (groin), perineal, pubic, sternal, right and left sub-mammary (breast) and others were assessed by the physician for abscesses, inflammatory nodules, draining fistulas, total fistulas, and other lesions. Inflammatory lesions, including abscesses, nodules, draining fistulae, total fistulae and other lesions were counted. The analysis method for percentage change from baseline in abscesses and inflammatory nodules (AN) count at Week 16 was an ANCOVA model.
Time frame: Baseline, 16 weeks
Percentage of Participants With Hidradenitis Suppurativa (HS) Flares
Percentage of participants who experience at least one flare over 16 weeks. A flare is defined as at least a 25% increase in abscesses and inflammatory nodules (AN) count with a minimum increase of 2 AN relative to baseline. This endpoint was analyzed by logistic regression.
Time frame: 16 weeks
Percentage of Participants Achieving NRS30
Patients achieving Numerical Rating Scale score of 30 (NRS30) at week 16, defined as at least a 30% reduction and at least one unit reduction from baseline in the Patient's Global assessment of Skin Pain (where range 0 \[no skin pain\] to 10 \[worst skin pain\]). This endpoint was analyzed by logistic regression.
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Novartis Investigative Site
Birmingham, Alabama, United States
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Rogers, Arkansas, United States
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Anaheim, California, United States
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San Diego, California, United States
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Miami, Florida, United States
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Tampa, Florida, United States
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Glenview, Illinois, United States
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West Dundee, Illinois, United States
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Boston, Massachusetts, United States
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New Brighton, Minnesota, United States
...and 101 more locations
Time frame: Baseline, week 16