A Study of Eltrekibart (LY3041658) in Adult Participants With Moderate to Severe Hidradenitis Suppurativa

Inclusion Criteria: * Have a diagnosis of HS for at least 12 months. * Have HS lesions in at least 2 distinct anatomical regions. At least 1 of the lesions must be at least Hurley Stage II or III. * Have an (abscess plus inflammatory nodule) count of at least 5. * Agree to use topical antiseptics daily. * Had an inadequate response or intolerance to a 28-day course of oral antibiotics. Exclusion Criteria: * Have more than 20 draining fistulae. * Have had surgical treatment for HS in the last 4 weeks before randomization. * Have an active skin disease or condition, that could interfere with the assessment of HS. * Have a current or recent acute, active infection. * Are immunocompromised. * Have a history of chronic alcohol abuse, IV drug abuse, or other illicit drug abuse within 1 year before screening.