A Study to Investigate Efficacy and Safety With SAR445399 in Adult Participants With Moderate to Severe Hidradenitis Suppurativa

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorSanofi

About this trial

This is a multinational, randomized, double-blind, placebo-controlled, Phase 2, dose finding study to evaluate the efficacy and safety of different doses of SAR445399 in adult participants with moderate to severe hidradenitis suppurativa.

The purpose of this study is to assess the efficacy and safety of two doses of SAR445399 compared with placebo in adult participants with moderate to severe hidradenitis suppurativa.

The study duration (per participant) will be up to 46 weeks with a total of 16 visits. The treatment duration will be 32 weeks which includes 16-week double-blinded initial treatment period and a 16-week treatment-blinded extension period.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

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.

Disqualifiers

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.

Trial design

Design model

Parallel

Treatments tested in this trial

  • SAR445399

    Drug

    Pharmaceutical form: Solution for injection -Route of administration: Injection

  • Placebo

    Drug

    Pharmaceutical form: Solution for injection -Route of administration: Injection

Treatment groups

144 Participants
are divided into 3 treatment groups
Group A: SAR445399 dose regimen AExperimental treatment 1 intervention
Group B: SAR445399 dose regimen BExperimental treatment 1 intervention
Group C: PlaceboPlacebo comparator 1 intervention

Trial outcomes

Primary outcomes

1

Percentage of participants achieving Hidradenitis Suppurativa Clinical Response 75 (HiSCR75)

Hidradenitis Suppurativa Clinical Response 75 (HiSCR75) is defined as ≥75% reduction from baseline in the total abscess and inflammatory nodule \[AN\] count, with no increase from Baseline in abscess or draining tunnel count.

Time frame
Up to Week 16

Secondary outcomes

1

Percentage of participants achieving Hidradenitis Suppurativa Clinical Response 50 (HiSCR50)

Hidradenitis Suppurativa Clinical Response 50 (HiSCR50) is defined as ≥50% reduction from baseline in the total AN count, with no increase from baseline in abscess or draining tunnel count)

Time frame
Up to Week 16
2

Absolute change from baseline to Week 16 in International Hidradenitis Suppurativa Severity Score System (IHS4)

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.

Time frame
From baseline to Week 16
3

Percentage of participants achieving Hidradenitis Suppurativa Clinical Response 90 (HiSCR90)

Hidradenitis Suppurativa Clinical Response 90 is defined as ≥90% reduction from baseline in the total abscess and inflammatory nodule \[AN\] count, with no increase from Baseline in abscess or draining tunnel count.

Time frame
Up to Week 16
4

Percent change from baseline to Week 16 in draining tunnel count

Time frame
From Baseline to week 16

Other outcomes

Sponsors and contacts

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