Study of AROSOD-1 in Adult Participants With Amyotrophic Lateral Sclerosis (ALS)
Study Details
Study Description
Brief Summary
In this Phase 1 double-blind, placebo-controlled study, adult symptomatic patients with amyotrophic lateral sclerosis (ALS) carrying a superoxide dismutase 1 (SOD1) gene mutation thought to be causative of ALS, will be randomized to receive single ascending doses of ARO-SOD1 administered by intrathecal (IT) infusion. The study is primarily intended to evaluate safety, but will also evaluate the effect of ARO-SOD1 on SOD1 cerebrospinal fluid (CSF) levels as a biomarker of pharmacodynamic (PD) effect, therefore lumbar punctures will be required at timepoints throughout the study. Participants whose SOD1 CSF levels have recovered to a satisfactory level may rescreen and rerandomize into higher dose cohorts; or if unable or unwilling to rescreen may enroll into an open-label study to be added by amendment when supported by nonclinical data for multidose administration.
Condition or Disease | Intervention/Treatment | Phase |
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Phase 1 |
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Experimental: ARO-SOD-1 ARO-SOD-1 Injection |
Drug: ARO-SOD1 Injection
single doses of ARO-SOD1 Injection by IT infusion
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Placebo Comparator: ARO-aCSF1 ARO-aCSF1 Injection (artificial CSF) |
Drug: Placebo: ARO-aCSF1 Injection
single doses of ARO-aCSF1 Injection by IT infusion, calculated volume to match active treatment
Other Names:
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Outcome Measures
Primary Outcome Measures
- Number of Participants with Treatment-Emergent Adverse Events (TEAEs) [From first dose of study drug through the end of study (EOS; up to 168 days)]
Secondary Outcome Measures
- Change Over Time from Baseline in CSF SOD1 Protein Levels [Pre-dose on Day 1 (Baseline) through EOS (up to 168 days)]
- Change Over Time from Baseline in Plasma Levels of Neurofilament Light Chain (NfL) [Pre-dose on Day 1 (Baseline) through EOS (up to 168 days)]
- Pharmacokinetics (PK) of ARO-SOD1: Maximum Observed Plasma Concentration (Cmax) [Days 1, 2, 15, 29, 57, 85 and EOS (Day 168): Pre-dose, post-dose at 1, 3, 5, 7, 12 and 24 hours]
- PK of ARO-SOD1: Time to Reach Maximum Observed Plasma Concentration (Tmax) [Days 1, 2, 15, 29, 57, 85 and EOS (Day 168): Pre-dose, post-dose at 1, 3, 5, 7, 12 and 24 hours]
- PK of ARO-SOD1: Area Under the Plasma Concentration Versus Time Curve from Zero to 24 Hours (AUC0-24) [Days 1, 2, 15, 29, 57, 85 and EOS (Day 168): Pre-dose, post-dose at 1, 3, 5, 7, 12 and 24 hours]
- PK of ARO-SOD1: Area Under the Plasma Concentration Versus Time Curve from Zero to the Last Quantifiable Plasma Concentration (AUClast) [Days 1, 2, 15, 29, 57, 85 and EOS (Day 168): Pre-dose, post-dose at 1, 3, 5, 7, 12 and 24 hours]
- PK of ARO-SOD1: Area Under the Plasma Concentration Versus Time Curve from Zero to Infinity (AUCinf) [Days 1, 2, 15, 29, 57, 85 and EOS (Day 168): Pre-dose, post-dose at 1, 3, 5, 7, 12 and 24 hours]
- PK of ARO-SOD1: Terminal Elimination Half-Life (t1/2) [Days 1, 2, 15, 29, 57, 85 and EOS (Day 168): Pre-dose, post-dose at 1, 3, 5, 7, 12 and 24 hours]
- PK of ARO-SOD1: Apparent Systemic Clearance (CL/F) [Days 1, 2, 15, 29, 57, 85 and EOS (Day 168): Pre-dose, post-dose at 1, 3, 5, 7, 12 and 24 hours]
- PK of ARO-SOD1: Recovery of Unchanged Drug in Urine Over 0-24 Hours (Amount Excreted: Ae) [Pre-dose through 24 hours post-dose]
- PK of ARO-SOD1: Percentage of Administered Drug Recovered in Urine Over 0-24 Hours [Pre-dose through 24 hours post-dose]
- PK of ARO-SOD1: Renal Clearance (CLr) [Pre-dose through 24 hours post-dose]
- Change From Baseline in Total Protein in CSF [Pre-dose on Day 1 (Baseline) through EOS (up to 168 days)]
- Change From Baseline in Glucose in CSF [Pre-dose on Day 1 (Baseline) through EOS (up to 168 days)]
- Change From Baseline in Cell Count in CSF [Pre-dose on Day 1 (Baseline) through EOS (up to 168 days)]
Eligibility Criteria
Criteria
Inclusion Criteria:
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Diagnosis of ALS based on source-verifiable medical record
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Pathogenic or likely pathogenic SOD1 mutation based on source-verifiable medical records or genetic testing during Screening
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Slow Vital Capacity (SVC) ≥ 50% of predicted value adjusted for sex, age, and height (from a sitting position) at Screening
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Able to complete at least 6 months of follow-up
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If taking any medication or supplement to treat ALS or ALS symptoms, must be on stable dose for ≥ 4 weeks prior to Day 1 and expected to remain at that dose until final study visit and not expected to start these medications after the first dose of ARO-SOD1
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Able and willing to provide written informed consent and to comply with all study assessments
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Participants of childbearing potential must agree to use highly effective contraception during the study and for at least 12 weeks following the end of study or last dose of study drug, whichever is later. Males must not donate sperm and females must not donate eggs during the study and for at least 12 weeks following the end of the study or last dose of study drug, whichever is later.
Exclusion Criteria:
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Current or anticipated need of a diaphragm pacing system (DPS) during the study
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Participants using tofersen can be enrolled only after a washout period of approximately 20 weeks from the last tofersen dose to the first planned dose of ARO-SOD1
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Any current or anticipated contraindications to lumbar puncture (LP)
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The presence of an implanted shunt for drainage of CSF or an implanted central nervous system (CNS) catheter
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Human immunodeficiency virus (HIV), seropositive for hepatitis B virus (HBV), seropositive for hepatitis C virus (HCV)
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Uncontrolled hypertension
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Severe cardiovascular disease
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History of drug abuse or alcoholism within 6 months of study enrollment
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Inability to comply with study requirements
Note: additional inclusion/exclusion criteria may apply per protocol
Contacts and Locations
Locations
No locations specified.Sponsors and Collaborators
- Arrowhead Pharmaceuticals
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- AROSOD1-1001