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Monoclonal Antibodies

Izokibep for Hidradenitis Suppurativa

Phase 3
Waitlist Available
Research Sponsored by ACELYRIN Inc.
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
18 to 75 years of age
Hidradenitis suppurativa lesions present in ≥ 2 distinct anatomic areas, one of which is Hurley Stage II or Hurley Stage III
Must not have
Other active skin disease or condition that could interfere with study assessments
History of active inflammatory bowel disease (IBD) OR symptoms within the last year that may be suggestive of IBD
Timeline
Screening 3 weeks
Treatment Varies
Follow Up up to 5 years
Awards & highlights
Pivotal Trial

Summary

This trial looks at a small protein molecule (izokibep) to treat Hidradenitis Suppurativa, a chronic skin condition. It includes people who haven't tried TNFi and those who couldn't tolerate it.

Who is the study for?
This trial is for adults aged 18-75 with active Hidradenitis Suppurativa (HS), who've had it for at least 6 months, and have at least 5 abscesses or nodules. Participants must not have a high count of draining fistulas, other interfering skin conditions, recent surgeries, certain infections like HIV or TB, uncontrolled diseases, risk of self-harm, chronic pain unrelated to HS, cancer in the last 5 years or signs of IBD.
What is being tested?
The study tests Izokibep—a molecule targeting interleukin 17A—against a placebo in people with HS. It includes those new to TNF inhibitors and those who didn't respond well to them. Participants will be randomly assigned to receive either Izokibep or a placebo while monitoring their condition.
What are the potential side effects?
Potential side effects may include reactions related to immune system changes due to interleukin inhibition such as increased infection risk and possibly inflammation-related symptoms; however specific side effects are not listed.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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I am between 18 and 75 years old.
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I have skin lesions in 2 different areas, with at least one area being moderate to severe.
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I agree to use daily skin antiseptics.

Exclusion Criteria

You may be eligible for the trial if you check “No” for criteria below:
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I do not have any skin conditions that could affect the study.
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I have had symptoms or a diagnosis of inflammatory bowel disease in the past year.
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I have chronic pain not related to hidradenitis suppurativa.
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I have a serious illness that is not under control.
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I have a history of diseases that affect the protective covering of nerves.
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I was diagnosed with cancer within the last 5 years.
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I do not have an active infection or a history of serious infections.
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I have been diagnosed with HIV.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~up to 5 years
This trial's timeline: 3 weeks for screening, Varies for treatment, and up to 5 years for reporting.

Treatment Details

Awards & Highlights

Pivotal Trial
The final step before approval, pivotal trials feature drugs that have already shown basic safety & efficacy.

Trial Design

2Treatment groups
Experimental Treatment
Group I: Group 2Experimental Treatment1 Intervention
Participants will receive izokibep QW from Day 1 to Week 51.
Group II: Group 1Experimental Treatment2 Interventions
Participants will receive placebo as a subcutaneous (SC) injection every week (QW) from Day 1 to Week 15. Participants will then receive izokibep as a SC injection QW from Week 16 to Week 51.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Placebo
1995
Completed Phase 3
~2670
Izokibep
2022
Completed Phase 2
~220

Find a Location

Who is running the clinical trial?

ACELYRIN Inc.Lead Sponsor
8 Previous Clinical Trials
849 Total Patients Enrolled
1 Trials studying Hidradenitis Suppurativa
205 Patients Enrolled for Hidradenitis Suppurativa
Saskia BennerStudy DirectorACELYRIN Inc.
Donald BetahStudy DirectorACELYRIN Inc.
1 Previous Clinical Trials
96 Total Patients Enrolled
Donald P. BetahStudy DirectorACELYRIN Inc.
Amol P. Kamboj, MDStudy DirectorACELYRIN Inc.

Media Library

Izokibep (Monoclonal Antibodies) Clinical Trial Eligibility Overview. Trial Name: NCT05905783 — Phase 3
Hidradenitis Suppurativa Research Study Groups: Group 1, Group 2
Hidradenitis Suppurativa Clinical Trial 2023: Izokibep Highlights & Side Effects. Trial Name: NCT05905783 — Phase 3
Izokibep (Monoclonal Antibodies) 2023 Treatment Timeline for Medical Study. Trial Name: NCT05905783 — Phase 3
~103 spots leftby Dec 2025