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A Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of BIIB094 in Adults With Parkinson's Disease

A Phase 1 Single- and Multiple-Ascending-Dose Study to Assess the Safety, Tolerability, and Pharmacokinetics of BIIB094 Administered Intrathecally to Adults With Parkinson's Disease

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03976349
Acronym
REASON
Enrollment
62
Registered
2019-06-06
Start date
2019-08-12
Completion date
2024-08-12
Last updated
2025-09-23

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

Conditions

Parkinson's Disease

Brief summary

The primary objective of this study is to evaluate the safety and tolerability of single and multiple doses of BIIB094 administered via intrathecal (IT) injection to participants with Parkinson's Disease (PD). The secondary objective of this study is to evaluate the pharmacokinetic (PK) profile of BIIB094.The study is open for PD patients with verified presence or absence of variations in the leucine-rich repeated kinase 2 (LRRK2) gene, but also for patients without any verified PD-related genetic variant.

Interventions

DRUGBIIB094

Administered as specified in the treatment arm.

DRUGPlacebo

Administered as specified in the treatment arm.

Sponsors

Ionis Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
35 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Ability to understand the purpose and risks of the study and provide signed and dated informed consent and authorization to use confidential health information in accordance with national and local participant privacy regulations. * Diagnosed with PD within 7 years at the time of initial enrollment (i.e., at time of SAD enrollment for rollover participants), without major motor fluctuations or dyskinesia that may interfere with study treatment and assessments in the opinion of the investigator after consultation with the Sponsor. * Modified Hoehn and Yahr Stage ≤ 3. Key

Exclusion criteria

* Montreal Cognitive Assessment (MoCA) score less than (\<) 23, dementia, or other significant cognitive impairment that, in the opinion of the Investigator, would interfere with study evaluation. * History of any brain surgery for PD or a history of focused ultrasound treatment at any time; or history of neuromodulation procedures. * Transient ischemic attack or stroke or any unexplained loss of consciousness within 1 year before Screening. * History of unstable angina, myocardial infarction, chronic heart failure, or clinically significant conduction abnormalities within 1 year before Screening. * Poorly controlled diabetes mellitus, as defined by having dosage adjustment of diabetic medication within 3 months before dosing (Day 1) or glycosylated hemoglobin value greater than or equal to (≥) 8 percent (%) at Screening. * History or positive test result at Screening for human immunodeficiency virus. * History or positive test result at Screening for hepatitis C virus antibody. NOTE: Other protocol defined Inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Part A: Screening (Day -42) up to Day 85, Part B: Screening (Day -77) up to Day 253An AE is any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and that does not necessarily have a causal relationship with this treatment. An SAE is any untoward medical occurrence that at any dose: results in death; in the view of the Investigator, places the participant at immediate risk of death (a life-threatening event); however, this does not include an event that, had it occurred in a more severe form, might have caused death; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; results in a congenital anomaly/birth defect; is a medically important event.

Secondary

MeasureTime frame
Area Under the Concentration-Time Curve From Time Zero Extrapolated to Infinity (AUCinf) of BIIB094Part A: pre-dose through Day 57, Part B: pre-dose through Day 169
Area Under the Concentration-Time Curve From Time Zero to Last Quantifiable Concentration (AUClast) of BIIB094Part A: pre-dose through Day 57, Part B: pre-dose through Day 169
Serum Concentrations of BIIB094Part A: pre-dose through Day 57, Part B: pre-dose through Day 169
Time to Reach Maximum Concentration (Tmax) of BIIB094Part A: pre-dose through Day 57, Part B: pre-dose through Day 169
Terminal Elimination Half-Life (t1/2) of BIIB094Part A: pre-dose through Day 57, Part B: pre-dose through Day 169
Maximum Concentration (Cmax) of BIIB094Part A: pre-dose through Day 57, Part B: pre-dose through Day 169

Countries

Canada, Israel, Norway, Spain, United Kingdom, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 26, 2026