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Safety, Tolerability and Pharmacodynamic Effect of Fazirsiran (TAK-999, ARO-AAT) (SEQUOIA)

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ClinicalTrials.gov Identifier: NCT03945292
Recruitment Status : Completed
First Posted : May 10, 2019
Last Update Posted : January 10, 2024
Sponsor:
Information provided by (Responsible Party):
Arrowhead Pharmaceuticals

Brief Summary:
The purpose of AROAAT2001 (SEQUOIA) is to evaluate the safety, efficacy and tolerability of multiple doses of the investigational product, Fazirsiran Injection, administered subcutaneously to participants with alpha-1 antitrypsin deficiency (AATD).

Condition or disease Intervention/treatment Phase
Alpha 1-Antitrypsin Deficiency Drug: Fazisiran Injection Other: Placebo Phase 2

Detailed Description:
Participants will be enrolled to receive multiple subcutaneous injections of Fazirsiran Injection (also referred to as TAK-999 Injection or ARO-AAT Injection) or placebo. Eligible participants will require a pre-dose biopsy completed as part of the study within the screening window. However, any participant with a biopsy result within 1 year of screening showing no fibrosis does not require a pre-dose biopsy. Only participants who have liver fibrosis will undergo a post-dose biopsy and may continue treatment in an open-label phase.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 40 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Placebo-Controlled, Multi-dose, Phase 2 Study to Determine the Safety, Tolerability and Pharmacodynamic Effect of Fazirsiran (TAK-999, ARO-AAT) in Patients With Alpha-1 Antitrypsin Deficiency (AATD) [SEQUOIA]
Actual Study Start Date : August 7, 2019
Actual Primary Completion Date : November 8, 2021
Actual Study Completion Date : September 18, 2023


Arm Intervention/treatment
Experimental: Fazirsiran (also referred to as TAK-999 or ARO-AAT)

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.

Drug: Fazisiran Injection
solution for subcutaneous (sc) injection
Other Names:
  • ARO-AAT Injection
  • TAK-999 Injection

Placebo Comparator: Placebo

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.

Other: Placebo
sterile normal saline (0.9% NaCl), calculated to match active comparator, for sc injection

Experimental: Open-Label Fazisiran (also referred to as TAK-999 or ARO-AAT)
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).
Drug: Fazisiran Injection
solution for subcutaneous (sc) injection
Other Names:
  • ARO-AAT Injection
  • TAK-999 Injection




Primary Outcome Measures :
  1. Percentage Change From Baseline in Serum Z-Alpha-1 Antitrypsin (Z-AAT) [ Time Frame: Baseline, Week 16 (+/- 2 weeks) ]

Secondary Outcome Measures :
  1. Number of Participants With Treatment-Emergent Adverse Events (TEAEs) at Week 16 and over time through End of Study (EOS) [ Time Frame: Week 16 (+/- 2 weeks) through Week 64 (+/- 2 weeks; participants without fibrosis) or Week 16 (+/- 2 weeks) through Week 208 (participants with fibrosis) ]
  2. Absolute Change from Baseline in Total Liver Z-AAT (Insoluble + Soluble) Protein at Post-dose Biopsy for Participants with Fibrosis [ Time Frame: Baseline, Week 48 (+/- 2 weeks), or Week 72 (+/- 4 weeks), or Week 96 (+/- 4 weeks) ]
  3. Percent Change from Baseline in Total Liver Z-AAT (Insoluble + Soluble) Protein at Post-dose Biopsy for Participants with Fibrosis [ Time Frame: Baseline, Week 48 (+/- 2 weeks), or Week 72 (+/- 4 weeks), or Week 96 (+/- 4 weeks) ]
  4. Absolute Change from Baseline in Liver Z-AAT Soluble Protein at Post-dose Biopsy for Participants with Fibrosis [ Time Frame: Baseline, Week 48 (+/- 2 weeks), or Week 72 (+/- 4 weeks), or Week 96 (+/- 4 weeks) ]
  5. Percent Change from Baseline in Liver Z-AAT Soluble Protein at Post-dose Biopsy for Participants with Fibrosis [ Time Frame: Baseline, Week 48 (+/- 2 weeks), or Week 72 (+/- 4 weeks), or Week 96 (+/- 4 weeks) ]
  6. Absolute Change from Baseline in Liver Z-AAT Insoluble Protein at Post-dose Biopsy for Participants with Fibrosis [ Time Frame: Baseline, Week 48 (+/- 2 weeks), or Week 72 (+/- 4 weeks), or Week 96 (+/- 4 weeks) ]
  7. Percent Change from Baseline in Liver Z-AAT Insoluble Protein at Post-dose Biopsy for Participants with Fibrosis [ Time Frame: Baseline, Week 48 (+/- 2 weeks), or Week 72 (+/- 4 weeks), or Week 96 (+/- 4 weeks) ]
  8. Absolute Change from Baseline in Liver Function Tests: Alanine Aminotransferase (ALT), Aspartate Aminotransferase (AST), Alkaline Phosphatase (ALP), Gamma-Glutamyl Transferase (GGT) at Week 16 and over time through EOS [ Time Frame: Baseline, Week 16 (+/- 2 weeks) through Week 64 (+/- 2 weeks; participants without fibrosis) or Week 16 (+/- 2 weeks) through Week 208 (participants with fibrosis) ]
  9. Percent Change from Baseline in Liver Function Tests: ALT, AST, ALP, GGT at Week 16 and over time through EOS [ Time Frame: Baseline, Week 16 (+/- 2 weeks) through Week 64 (+/- 2 weeks; participants without fibrosis) or Week 16 (+/- 2 weeks) through Week 208 (participants with fibrosis) ]
  10. Absolute Change from Baseline in Liver Function Tests: Total Bilirubin, Direct Bilirubin at Week 16 and over time through EOS [ Time Frame: Baseline, Week 16 (+/- 2 weeks) through Week 64 (+/- 2 weeks; participants without fibrosis) or Week 16 (+/- 2 weeks) through Week 208 (participants with fibrosis) ]
  11. Percent Change from Baseline in Liver Function Tests: Total Bilirubin, Direct Bilirubin at Week 16 and over time through EOS [ Time Frame: Baseline, Week 16 (+/- 2 weeks) through Week 64 (+/- 2 weeks; participants without fibrosis) or Week 16 (+/- 2 weeks) through Week 208 (participants with fibrosis) ]
  12. Absolute Change from Baseline in Liver Function Tests: International Normalized Ratio (INR) at Week 16 and over time through EOS [ Time Frame: Baseline, Week 16 (+/- 2 weeks) through Week 64 (+/- 2 weeks; participants without fibrosis) or Week 16 (+/- 2 weeks) through Week 208 (participants with fibrosis) ]
  13. Percent Change from Baseline in Liver Function Tests: INR at Week 16 and over time through EOS [ Time Frame: Baseline, Week 16 (+/- 2 weeks) through Week 64 (+/- 2 weeks; participants without fibrosis) or Week 16 (+/- 2 weeks) through Week 208 (participants with fibrosis) ]
  14. Absolute Change in Serum Z-AAT Over Time through EOS [ Time Frame: Baseline, through Week 64 (+/- 2 weeks; participants without fibrosis) or Week 16 (+/- 2 weeks) through Week 208 (participants with fibrosis) ]
  15. Percent Change in Serum Z-AAT Over Time through EOS [ Time Frame: Baseline, through Week 64 (+/- 2 weeks; participants without fibrosis) or Week 16 (+/- 2 weeks) through Week 208 (participants with fibrosis) ]
  16. Pharmacokinetics (PK) of Fazirsiran: Maximum Observed Plasma Concentration (Cmax) [ Time Frame: Participants without fibrosis: Pre-dose, 1 hour, 2 hour & 24 or 48 hours post-dose on Day 1 (+/- 1 day). Participants with fibrosis: Pre-dose, 1 hour, 2 hours & 24 or 48 hours post-dose on Days 1 and 113 (+/- 1 day) ]
  17. PK of Fazirsiran: Time to Maximum Observed Plasma Concentration (Tmax) [ Time Frame: Participants without fibrosis: Pre-dose, 1 hour, 2 hour & 24 or 48 hours post-dose on Day 1 (+/- 1 day). Participants with fibrosis: Pre-dose, 1 hour, 2 hours & 24 or 48 hours post-dose on Days 1 and 113 (+/- 1 day) ]
  18. PK of Fazirsiran: Terminal Elimination Half-Life (t1/2) [ Time Frame: Participants without fibrosis: Pre-dose, 1 hour, 2 hour & 24 or 48 hours post-dose on Day 1 (+/- 1 day). Participants with fibrosis: Pre-dose, 1 hour, 2 hours & 24 or 48 hours post-dose on Days 1 and 113 (+/- 1 day) ]
  19. PK of Fazirsiran: Area Under the Plasma Concentration Versus Time Curve from Zero to the Last Time Point with a Quantifiable Concentration (AUC0-t) [ Time Frame: Participants without fibrosis: Pre-dose, 1 hour, 2 hour & 24 or 48 hours post-dose on Day 1 (+/- 1 day). Participants with fibrosis: Pre-dose, 1 hour, 2 hours & 24 or 48 hours post-dose on Days 1 and 113 (+/- 1 day) ]
  20. PK of Fazirsiran: Area Under the Plasma Concentration Versus Time Curve from Zero to Infinity (AUCinf) [ Time Frame: Participants without fibrosis: Pre-dose, 1 hour, 2 hour & 24 or 48 hours post-dose on Day 1 (+/- 1 day). Participants with fibrosis: Pre-dose, 1 hour, 2 hours & 24 or 48 hours post-dose on Days 1 and 113 (+/- 1 day) ]
  21. Incidence of Anti-Drug Antibodies to Fazirsiran [ Time Frame: Participants Without Fibrosis: Pre-dose on Days 1 & 29, and on Days 113, 197 and 281; Participants With Fibrosis: Pre-dose on all dosing visits (Days 1, 29, 113, and every 12 weeks up to Week 196) ]
  22. Change from Baseline in Metavir Fibrosis Stage at Post-Dose Biopsy for Participants with Fibrosis [ Time Frame: Post-dose at Weeks 48 (+/- 2 weeks) or Week 72 (+/- 4 weeks) or Week 96 (+/- 4 weeks) ]


Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Diagnosis of AATD
  • Liver biopsy at Screening indicating liver fibrosis (score less than F4); a patient with no fibrosis may participate based on a previous biopsy conducted within one year
  • Women of childbearing potential must have a negative pregnancy test, cannot be breastfeeding, and must be willing to use contraception
  • Willing to provide written informed consent and to comply with study requirements
  • Non-smoker for at least 1 year
  • No abnormal finding of clinical relevance at Screening

Exclusion Criteria:

  • Clinically significant health concerns other than AATD
  • Previous diagnosis or diagnosis at Screening of definitive liver cirrhosis
  • Previous lung or liver transplant due to AATD
  • Regular use of alcohol within one month prior to Screening
  • Use of an investigational agent or device within 30 days prior to dosing or current participation in an investigational study involving therapeutic intervention
  • Use of illicit drugs within 1 year prior to Screening

NOTE: additional inclusion/exclusion criteria may apply, per protocol


Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03945292


Locations
Show Show 21 study locations
Sponsors and Collaborators
Arrowhead Pharmaceuticals
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
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Responsible Party: Arrowhead Pharmaceuticals
ClinicalTrials.gov Identifier: NCT03945292    
Other Study ID Numbers: AROAAT2001
2018-003385-14 ( EudraCT Number )
First Posted: May 10, 2019    Key Record Dates
Last Update Posted: January 10, 2024
Last Verified: January 2024
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Product Manufactured in and Exported from the U.S.: Yes
Additional relevant MeSH terms:
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Alpha 1-Antitrypsin Deficiency
Liver Diseases
Digestive System Diseases
Lung Diseases
Respiratory Tract Diseases
Genetic Diseases, Inborn
Subcutaneous Emphysema
Emphysema
Pathologic Processes