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A study to investigate efficacy and safety with SAR445399 in adult participants with moderate to severe hidradenitis suppurativa

A randomized, double-blind, placebo-controlled, Phase 2, dose-finding study to investigate the efficacy and safety of SAR445399 in participants with moderate to severe hidradenitis suppurativa

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2031250733
Enrollment
144
Registered
2026-02-13
Start date
2026-03-06
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Hidradenitis suppurativa

Interventions

Drug: SAR445399 Pharmaceutical form: Solution for injection/infusion, Route of administration: Injection/infusion Drug: Placebo Pharmaceutical form: Solution for injection, Route of administration:

Sponsors

Obara Kentaro
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Participants are eligible to be included in the study only if all of the following criteria apply: - Participants with a history of signs and symptoms consistent with hidradenitis suppurativa (HS) for at least 6 months prior to Baseline. - 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. - Participant must have had an inadequate response to a trial of an oral antibiotic for treatment of HS, exhibited recurrence after discontinuation of antibiotics or demonstrated intolerance to antibiotics or has a contraindication to oral antibiotics for treatment of their HS as assessed by the Investigator through participant interview and review of medical history. - Participants in the biologic-naive stratum must be naive to any prior use of biologic therapy with a potential impact on HS; Participants in the biologic-experienced stratum must have documented history of use of at least one dose of biologic therapy for HS.

Exclusion criteria

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 recurrent or recent serious infection. - Known history of or suspected current immunosuppression. - History of solid organ transplant or stem cell transplant. - History of splenectomy. - History of malignancy or lymphoproliferative disease other than adequately treated or nonmetastatic squamous cell carcinoma of the skin that was excised and completely cured or nonmetastatic basal cell carcinoma of the skin that was excised and completely cured. - 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.

Design outcomes

Primary

MeasureTime frame
1. Percentage of participants achieving Hidradenitis Suppurativa Clinical Response 75 (HiSCR75) [Time Frame: Up to Week 16] HiSCR75 is defined as >=75% reduction from baseline in the total AN count, with no increase from Baseline in abscess or draining tunnel count.

Secondary

MeasureTime frame
1. Percentage of participants achieving Hidradenitis Suppurativa Clinical Response 50 (HiSCR50) [Time Frame: Up to Week 16] HiSCR50 is defined as >=50% reduction from baseline in the total AN count, with no increase from baseline in abscess or draining tunnel count. 2. Absolute change from baseline to Week 16 in International Hidradenitis Suppurativa Severity Score System (IHS4) [Time Frame: From baseline to Week 16] The determination of IHS4 requires counting the inflammatory nodules, abscesses and draining tunnels and multiplying each by a specific coefficient. A high score signifies severe disease. 3. Percentage of participants achieving Hidradenitis Suppurativa Clinical Response 90 (HiSCR90) [Time Frame: Up to Week 16] HiSCR90 is defined as >=90% reduction from baseline in the total AN count, with no increase from Baseline in abscess or draining tunnel count. 4. Percent change from baseline to Week 16 in draining tunnel count [Time Frame: From baseline to Week 16] 5. Absolute change from baseline to Week 16 in draining tunnel count [Time Frame: From baseline to Week 16] 6. Percentage of participants with improvement from baseline to Week 16 of >=3 points in weekly average Hidradenitis Suppurativa Skin Pain Numeric Rating Scale (HS-Skin Pain NRS) item 1 from Hidradenitis Suppurativa Symptom Assessment Questionnaire (HS-SAQ), among participants with baseline HS-Skin Pain NRS >=3 [Time Frame: From baseline to Week 16] The HS-SAQ is a 7-item scale comprising unidimensional numeric rating scale (NRS) items assessing symptoms of HS. HS-Skin Pain NRS is based on worst skin pain in a 24-hour recall period (daily assessment is averaged over 7-day period). 7. Percent change from baseline to Week 16 in HS-Skin Pain NRS [Time Frame: From baseline to Week 16] 8. Absolute change from baseline to Week 16 in the Dermatology Life Quality Index (DLQI) score [Time Frame: From baseline to Week 16] The DLQI is a 10-item dermatology specific health related quality of life (HRQoL) ins

Countries

Japan, United States

Contacts

Public ContactUnit Clinical

Sanofi K.K.

clinical-trials-jp@sanofi.com+81-3-6301-3670

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026