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siRNA

Fazirsiran (also referred to as TAK-999 or ARO-AAT) for Alpha-1 Antitrypsin Deficiency (SEQUOIA Trial)

Phase 2
Waitlist Available
Research Sponsored by Arrowhead Pharmaceuticals
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Be older than 18 years old
Timeline
Screening 3 weeks
Treatment Varies
Follow Up up to 5 years

Summary

This trial tests if Fazirsiran Injection, given under the skin, can help patients with alpha-1 antitrypsin deficiency by protecting their liver from damage. Fazirsiran is a treatment aimed at addressing liver damage in patients with alpha-1 antitrypsin deficiency, a condition where the liver is harmed due to abnormal protein accumulation.

Eligible Conditions
  • Alpha-1 Antitrypsin Deficiency

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

Trial Design

3Treatment groups
Experimental Treatment
Placebo Group
Group I: Open-Label Fazisiran (also referred to as TAK-999 or ARO-AAT)Experimental Treatment1 Intervention
After all enrolled participants completed the Week 16 visit, an interim analysis was performed to select a single dose level (25, 100 or 200 mg) for the open-label phase of the study. Fazirsiran 200 mg was the selected dose and all participants with fibrosis at Screening who completed the post-dose liver biopsy at Week 48 (or Week 72 or 96) receive this dose every 12 weeks for the duration of the study (open-label phase).
Group II: Fazirsiran (also referred to as TAK-999 or ARO-AAT)Experimental Treatment1 Intervention
Participants with no fibrosis: Administered on Day 1 and Week 4 Participants with fibrosis: Administered on Day 1, Week 4, and Week 16, then every 12 weeks up to 18 total doses.
Group III: PlaceboPlacebo Group1 Intervention
Participants with no fibrosis: Administered on Day 1 and Week 4 Participants with fibrosis: Administered on Day 1, Week 4, and Week 16, then every 12 weeks up to 18 total doses.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Fazisiran Injection
2019
Completed Phase 2
~40

Find a Location

Who is running the clinical trial?

Arrowhead PharmaceuticalsLead Sponsor
39 Previous Clinical Trials
4,891 Total Patients Enrolled
~6 spots leftby Nov 2025