A Study to Investigate Efficacy and Safety of Duvakitug in Adult Participants With Moderate to Severe Hidradenitis Suppurativa

Inclusion criteria

• Participants with a history of signs and symptoms consistent with hidradenitis suppurativa (HS) for at least 6 months prior to Baseline Visit
• Participants must have HS lesions present in at least 2 distinct anatomic areas (eg, left, and right axilla; or left axilla and left inguino-crural fold), with at least 1 body site being Hurley Stage II or III.
• Participant must have a total abscess and inflammatory nodule (AN) count of ≥5 at the Baseline Visit.
• Participants must have had an inadequate response to a course of a systemic antibiotics for treatment of HS, exhibited recurrence after discontinuation of antibiotics or demonstrated intolerance to antibiotics, or has a contraindication to systemic antibiotics for treatment of their HS as assessed by the Investigator through participant interview and review of medical history.
• Participants must have a prior HS treatment history consistent with the following:

• For the biologic and immunosuppressive small molecule-naïve subgroup, participants must have no history of treatment with any approved or investigational biologic therapy or small molecule immunosuppressive therapy with potential efficacy for HS.
• For the biologic and immunosuppressive small molecule-experienced subgroup, participants must have a history of treatment with at least 1 biologic or immunosuppressive small molecule therapy with potential efficacy for HS.

Exclusion criteria

• Participants are excluded from the study if any of the following criteria apply:
• Any other active skin disease or condition (eg, bacterial, fungal, or viral infection) that may interfere with assessment of HS.
• History of systemic hypersensitivity or anaphylaxis to any biologic therapy
• History of recurrent or recent serious infection
• Known history of or suspected significant current immunosuppression
• History of solid organ transplant or stem cell transplant.
• History of splenectomy
• History of malignancy or suspicion of malignancy within 5 years prior to the Screening Visit (except for in situ cervical carcinoma that has been treated by surgery and completely cured, or basal cell carcinoma or squamous cell carcinoma that has been excised and completely cured)
• History within the 2 years prior to Baseline Visit of prescription drug or substance abuse, including alcohol, considered significant by the Investigator.
• Any medical or psychiatric condition which, in the opinion of the Investigator could be considered uncontrolled, unstable, or likely to progress in a clinically relevant manner and may present an unreasonable risk to the study participants as a result of his/her participation in this clinical study, may make participant's participation unreliable, or may interfere with study assessments.
• Any other medical condition or severe, concomitant illness, including psychiatric illness and substance abuse, that may present an unreasonable risk to the study participants, make participants unreliable, or may interfere with study assessments.

The above information is not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.