A Phase Ⅰ/Ⅱa Study of SNUG01 in Adult Subjects With ALS
A Multicenter, Open-label, Single-arm, Dose Escalation and Expansion, Phase I/IIa Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Preliminary Efficacy of SNUG01 in Adult Subjects With Amyotrophic Lateral Sclerosis (ALS)
1 other identifier
interventional
21
2 countries
4
Brief Summary
The goal of this clinical trial is to evaluate the safety, tolerability and preliminary efficacy of SNUG01 in in adult subjects with Amyotrophic Lateral Sclerosis (ALS).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Dec 2025
Typical duration for phase_1
4 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 8, 2025
CompletedFirst Posted
Study publicly available on registry
September 11, 2025
CompletedStudy Start
First participant enrolled
December 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 30, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
September 30, 2028
September 11, 2025
September 1, 2025
2.3 years
August 8, 2025
September 5, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
The safety and tolerability of SNUG01 administered by intrathecal.
Dose-limiting toxicity (DLT), adverse events (AEs), clinically significant changes in vital signs, physical examination, clinical laboratory tests (hematology, biochemistry, urinalysis, coagulation, cardiac enzymes, etc.) and 12-lead ECG, etc.
up to 1 year after administration
To recommend the optimal expansion dose of SNUG01 that demonstrates acceptable safety with maximum preliminary efficacy administered by IT.
up to 1 years
Secondary Outcomes (3)
Immunogenicity of SNUG01
up to 1 years
PK of SNUG01 (Biodistribution and Viral Shedding)
up to 1 years
Preliminary Clinical Efficacy of SNUG01
up to 1 years
Study Arms (1)
3 Ascending Dose Levels, Single Injection by Intrathecal(IT)
EXPERIMENTALInterventions
AAV (adeno-associated virus) Gene therapy
Eligibility Criteria
You may qualify if:
- Subjects who are able to provide written informed consent form (ICF).
- Subjects who are males or females must be ≥ 18 years and ≤ 80 years of age at the screening visit.
- Subjects who have clinically definite ALS, clinically probable ALS, or clinically probable-laboratory supported ALS as specified in the revised version of the El Escorial World Federation of Neurology criteria.
- Subjects must have an ALS disease duration (from first symptom onset to the screening visit) ≤ 2 years.
- Subjects with a body mass index (BMI) ≥ 19 kg/m2 at the screening visit.
- Subjects whose percent-predicted Forced Vital Capacity (%FVC) is ≥ 70% or percent-predicted Slow Vital Capacity (%SVC) is ≥ 60%, adjusted for sex, age, and height at the screening visit.
- The ALSFRS-R score ≥ 30 during the screening period, and the three respiratory scores (dyspnea, upright respiration, and respiratory insufficiency) must be full marks.
You may not qualify if:
- Serum Anti-AAV9 neutralizing antibody titer ≥ 1:100.
- Current or previous exposure to gene therapy, stem cell products, and solid organ transplantation.
- Subjects who have implanted or are estimated to require a diaphragmatic pacing system during the study period.
- Any thromboembolic event, such as deep vein thrombosis, pulmonary arteriovenous embolism, and jugular vein embolism, has occurred within 6 months before the administration.
- Suffering from autoimmune diseases or ongoing immune-related therapy, except intranasal, inhalation, ocular, topical, intra-articular corticosteroid therapy or corticosteroid physiological replacement therapy.
- Active or chronic uncontrolled infection within 4 weeks before the administration, deemed unacceptable in the discretion of the investigator.
- Evidence of human immunodeficiency virus (HIV) and treponema pallidum (TP) infection, as documented by the treatment for HIV or TP, or by HIV or TP antibodies positivity at the screening visit.
- Has a positive serum pregnancy test at screening (females of childbearing potential only), a positive urine or serum pregnancy test at baseline (Day -1. females of childbearing potential only), or is nursing.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (4)
Massachusetts General Hospital
Boston, Massachusetts, 02467, United States
Peking University Third Hospital
Beijing, Beijing Municipality, 100000, China
Fujian Medical University Union Hospital
Fuzhou, Fujian, 350000, China
Second Affiliated Hospital Zhejiang University School of Medicine
Hangzhou, Zhejiang, 310000, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SEQUENTIAL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 8, 2025
First Posted
September 11, 2025
Study Start
December 1, 2025
Primary Completion (Estimated)
March 30, 2028
Study Completion (Estimated)
September 30, 2028
Last Updated
September 11, 2025
Record last verified: 2025-09