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Study of ARO-AAT in Normal Adult Volunteers

A Phase 1 Single and Multiple Dose-Escalating Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Effect of ARO-AAT on Serum Alpha-1 Antitrypsin Levels in Normal Adult Volunteers

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03362242
Enrollment
45
Registered
2017-12-05
Start date
2018-03-12
Completion date
2020-03-21
Last updated
2025-12-24

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

Conditions

Alpha 1-Antitrypsin Deficiency

Brief summary

The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of single- and multiple-ascending doses of ARO-AAT in healthy adult volunteers.

Interventions

DRUGARO-AAT Injection

Single or multiple doses of ARO-AAT by subcutaneous (sc) injections

OTHERSterile Normal Saline (0.9% NaCl)

Calculated volume to match active comparator

Sponsors

Arrowhead Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Women of child bearing 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 one year * Normal lung function * No abnormal finding of clinical relevance at Screening * Normal AAT level at Screening visit

Exclusion criteria

* Clinically significant health concerns * 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 * Recent use of illicit drugs * Use of any drugs or dietary/herbal supplements know to interfere with liver metabolism NOTE: additional inclusion/

Design outcomes

Primary

MeasureTime frame
Number of Participants With Adverse Events (AEs) Possibly or Probably Related to TreatmentPart A (single-ascending dose [SAD] phase): up to 29 (+/- 2) days post-dose; Part B (multiple-ascending dose [MAD] phase): up to 113 (+/- 2) days post-dose

Secondary

MeasureTime frame
PK of ARO-AAT: Time to Maximum Plasma Concentration (Tmax)Part A (SAD phase): up to 48 hours post-dose; Part B (MAD phase): up to 48 hours post-dose
PK of ARO-AAT: Terminal Elimination Half-Life (t½)Part A (SAD phase): up to 48 hours post-dose; Part B (MAD phase): up to 48 hours post-dose
PK of ARO-AAT: Area Under the Plasma Concentration Versus Time Curve From Zero to 24 Hours (AUC0-24)Part A (SAD phase): up to 48 hours post-dose; Part B (MAD phase): up to 48 hours post-dose
Pharmacokinetics (PK) of ARO-AAT: Maximum Observed Plasma Concentration (Cmax)Part A (single-ascending dose [SAD] phase): up to 48 hours post-dose; Part B (multiple-ascending dose [MAD] phase): up to 48 hours post-dose
Percent Change in Serum Alpha-1 Antitrypsin (AAT) Levels From Day 1 Pre-Dose Baseline to NadirPart A (SAD phase): up to 29 (+/- 2) days; Part B (MAD phase): up to 113 (+/- 2) days
Duration of Response of Serum AAT levels From Nadir Back to Above 20% of Baseline or Above 90 mg/dLPart A (SAD phase): up to 29 (+/- 2) days; Part B (MAD phase): up to 113 (+/- 2) days
PK of ARO-AAT: Area Under the Plasma Concentration Versus Time Curve From Zero to Infinity (AUCinf)Part A (SAD phase): up to 48 hours post-dose; Part B (MAD phase): up to 48 hours post-dose

Countries

New Zealand

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026