The main objective of this study is to determine if NAV-240 works more effectively than a dummy treatment (placebo) for participants with moderate-to-severe HS. The main endpoint of this study is the percentage of participants achieving Hidradenitis Suppurativa Clinical Response (HiSCR) 75 at Week 16, meaning at least a 75% reduction in inflamed skin bumps (abscess and inflammatory nodule (AN) count) with no increase in number of abscesses or draining tunnels (channels under the skin that leak fluid or pus) compared to the baseline (start of the study). Participants will: * Receive NAV-240 dose 1, NAV-240 dose 2 or placebo as a drip into the veins (intravenous infusion). * Visit the clinic up to 9 times for checkups and tests over 22 weeks. * Complete a daily diary about their skin pain.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
150
NAV-240 for Intravenous Infusion
Placebo to match NAV-240 for Intravenous Infusion
Medical Dermatology Specialist
Phoenix, Arizona, United States
RECRUITINGScottsdale Clinical Trials
Scottsdale, Arizona, United States
RECRUITINGAccel Research Sites Network
Maitland, Florida, United States
RECRUITINGFloridian Research Institute
Miami, Florida, United States
Proportion of participants achieving Hidradenitis Suppurativa Clinical Response (HiSCR) 75
HiSCR75 is defined as at least a 75% reduction in total abscess and inflammatory nodule count (AN count) with no increase in abscess count and no increase in draining tunnel count relative to baseline.
Time frame: Baseline to Week 16
Proportion of participants achieving skin pain numeric rating scale (NRS) 30 response
NRS30 is defined as a ≥ 30% reduction and at least a 2-unit reduction from baseline in skin pain on the NRS, for participants with a baseline skin pain NRS ≥ 3, based on the weekly average of the worst skin pain in a 24-hour recall period (maximal daily pain). The skin pain NRS is a single-item measure designed to capture information on self-reported skin pain severity by rating "the worst level of skin pain in the past 24 hours" as a number on a numerical rating scale from 0 (no pain) to 10 (worst pain imaginable).
Time frame: Baseline to Week 16
Proportion of participants achieving HiSCR50
HiSCR50 is defined as at least a 50% reduction in total AN count with no increase in abscess count and no increase in draining tunnel count relative to baseline.
Time frame: Baseline to Week 16
Proportion of participants achieving a Dermatology Life Quality Index (DLQI) improvement (reduction) of ≥ 4 points among participants with DLQI ≥ 4 at baseline
The DLQI is a simple validated 10-item, dermatology-specific, quality-of-life (QoL) questionnaire. Each item in the questionnaire can receive an impairment degree on a 4-point-scale (0 - not at all, 3 - very much), and the higher the score, the greater the impairment of QoL.
Time frame: Baseline to Week 16
Proportion of participants with HS flare
Time frame: Baseline to Week 16
Change in the International Hidradenitis Suppurativa Severity Score System (IHS4) scores
The IHS4 score is arrived at by the number of nodules (multiplied by 1) plus the number of abscesses (multiplied by 2) plus the number of draining tunnels (multiplied by 4). A total score of 3 or less is a mild disease, 4-10 signifies moderate disease and 11 or higher signifies severe disease.
Time frame: Baseline to Week 16
Change from baseline in AN count
Time frame: Baseline to Week 16
Change from baseline in the number of draining tunnels
Time frame: Baseline to Week 16
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