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Study to Evaluate the Efficacy and Safety of Subcutaneous Sonelokimab Compared With Placebo in Adult Participants With Moderate to Severe Hidradenitis Suppurativa

A Phase 3, Randomized, Double-blind, Placebo-controlled, Multicenter Study to Evaluate the Efficacy and Safety of Subcutaneous Sonelokimab in Adult Participants With Moderate to Severe Hidradenitis Suppurativa

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06411379
Enrollment
418
Registered
2024-05-13
Start date
2024-05-14
Completion date
2026-06-17
Last updated
2025-05-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hidradenitis Suppurativa

Keywords

Hidradenitis Suppurativa, Hidradenitis, Sweat Gland Diseases, Skin Diseases, Skin Diseases, Bacterial, Suppuration, Anti-Inflammatory Agents, Sonelokimab, Nanobody, Apocrine Gland Disease

Brief summary

This is a study to evaluate the clinical efficacy and safety of sonelokimab administered subcutaneously compared with placebo in the treatment of adult participants with moderate to severe hidradenitis suppurativa. Participants will be randomized 2:1 to either sonelokimab or matching placebo up to Week 16.

Interventions

Sonelokimab

DRUGPlacebo

Placebo

Sponsors

MoonLake Immunotherapeutics AG
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Caregiver)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Participants must be at least 18 years of age at the time of signing the informed consent. 2. Participants who are diagnosed with hidradenitis suppurativa as determined by the investigator and have a history of signs and symptoms of hidradenitis suppurativa for at least 6 months before signing the informed consent. 3. Participants who have had an inadequate response to appropriate systemic antibiotics for treatment of hidradenitis suppurativa (or demonstrated intolerance to, or had a contraindication to, systemic antibiotics for treatment of their HS), in the investigator's opinion. 4. Participants who have a total AN count of ≥5. 5. Participants who have HS lesions present in ≥2 distinct anatomical areas, at least one of which must contain single or multiple fistulas (ie, be Hurley Stage II or III).

Exclusion criteria

1. Participants with a known hypersensitivity to sonelokimab or any of its excipients. 2. Participants with any other active skin disease or condition that may, in the opinion of the investigator, interfere with the assessment of HS. 3. Participants with underlying conditions that, in the opinion of the investigator, potentially places the participant at unacceptable risk. 4. Participants with current severe or uncontrolled disease(s) that put(s) the participant at increased risk in the investigator's opinion, would preclude the participant from adhering to the protocol or completing the study per protocol. 5. Participants with any other known autoimmune disease or any medical condition that in the opinion of the investigator would interfere with an accurate assessment of clinical symptoms of HS. 6. Participants with a gastrointestinal condition including inflammatory bowel disease or diagnosis of ulcerative colitis or Crohn's disease.

Design outcomes

Primary

MeasureTime frameDescription
Hidradenitis Suppurativa Clinical Response 75Week 16Percentage of participants achieving Hidradenitis Suppurativa Clinical Response 75 (HiSCR75), where HiSCR75 is defined as at least a 75% reduction from baseline in abscess and inflammatory nodule (AN) count, with no increase from baseline in abscess or draining fistula count.

Secondary

MeasureTime frameDescription
Change in International Hidradenitis Suppurativa Severity Score SystemWeek 16Absolute change from baseline in International Hidradenitis Suppurativa Severity Score System (IHS4) The IHS4 score is calculated as follows: number of nodules (multiplied by 1) + number of abscesses (multiplied by 2) + number of draining tunnels (multiplied by 4). A total score of 3 or less signifies mild, 4 to 10 signifies moderate, and 11 or higher signifies severe disease.
Dermatology Life Quality Index (DLQI)Week 16Percentage of participants achieving a DLQI total reduction of ≥4 minimal clinically important difference among participants with a baseline DLQI ≥4. DLQI produces a numeric score that can range from 0 to 30. A higher score indicates greater health related quality of life impairment.
Hidradenitis Suppurativa Clinical Response 50 (HiSCR50)Week 16Percentage of participants achieving HiSCR50
Patient Global Impression - Severity of Illness - Hidradenitis Suppurativa at Week 16Week 16Percentage of participants with minimal or absent symptoms using the Patient Global Impression - Severity of Illness - Hidradenitis Suppurativa at Week 16. Participants choose the response that best describes the severity of their disease. The question is rated on a 7-point scale ranging from 0 to 6 (0=absent; 1=minimal; 2=mild; 3=moderate; 4=moderately severe; 5=severe; 6=very severe).
Resolution of draining tunnels (DT100)Week 16 and Week 52Percentage of participants with zero draining tunnels in the subgroup of participants with at least one draining tunnel at baseline (DT100)
Reduction from Numerical Rating Scale (NRS30 & NRS50) in Patient's Global Assessment of Skin Pain (PGA Skin Pain)week 16Percentage of participants achieving at least ≥30% (and ≥50%) reduction and at least 2-unit reduction from Baseline in Numerical Rating Scale (NRS30 & NRS50) in Patient's Global Assessment of Skin Pain (PGA Skin Pain) among subjects with Baseline NRS ≥3

Countries

Belgium, Bulgaria, Canada, Czechia, France, Germany, Ireland, Netherlands, Poland, Slovakia, Spain, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026