Safety Study of XT-150 in Participants With ALS
A Phase 1, Open-Label Study Assessing the Safety, Pharmacokinetics, Pharmacodynamics, and Biomarkers of Single Ascending Dose Regimens of XT-150 for the Treatment of Amyotrophic Lateral Sclerosis (ALS)
1 other identifier
interventional
8
1 country
4
Brief Summary
This is a Phase 1, open-label, multi-center safety study of XT-150 in adult participants with Amyotrophic Lateral Sclerosis (ALS). Participants providing informed consent and meeting all study eligibility criteria will be enrolled in the study and will receive a single injection of XT-150 at the Baseline visit. Follow-up visits will occur over 180 days (6 months) after the injection. 8 participants (4 participants per dose level) will be enrolled sequentially in up to 2 ascending, single dose cohorts: Cohort 1: 1.5 mg XT-150 Cohort 2: 4.5 mg XT-150
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_1
Started Nov 2025
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
November 20, 2024
CompletedFirst Posted
Study publicly available on registry
November 26, 2024
CompletedStudy Start
First participant enrolled
November 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
March 1, 2027
April 6, 2025
April 1, 2025
1.3 years
November 20, 2024
April 2, 2025
Conditions
Outcome Measures
Primary Outcomes (4)
Number of participants reporting adverse events (AEs), Serious Adverse Events (SAEs) and AEs of Special Interest (AESIs)
Up to Day 180
Number of participants with clinically significant physical examination findings
Up to Day 180
Number of participants with clinically significant vital sign abnormalities
Vital signs include temperature, heart rate, respiratory rate and blood pressure
Up to Day 180
Number of participants with clinically significant laboratory abnormalities
Clinical laboratory assessments include hematology, chemistry, coagulation, lipids, C-reactive protein, erythrocyte sedimentation rate and CSF total protein, cell count and glucose
Up to Day 180
Study Arms (2)
Cohort 1: 1.5 mg XT-150
EXPERIMENTALParticipants will be administered 1.5 mg of XT-150 once by intrathecal injection on Day 1. An intrathecal injection is an injection using a thin needle inserted into the spinal canal at the base of your spinal cord performed by your study doctor.
Cohort 2: 4.5 mg XT-150
EXPERIMENTALParticipants will be administered 1.5 mg of XT-150 once by intrathecal injection on Day 1. An intrathecal injection is an injection using a thin needle inserted into the spinal canal at the base of your spinal cord performed by your study doctor.
Interventions
XT-150 is a small piece of plasmid DNA (genetic material) that produces a variant of the anti-inflammatory cytokine, Interleukin 10 (IL-10).
Eligibility Criteria
You may qualify if:
- Adults between 18 and 80 years of age
- Male or female, if of childbearing potential or sexually active, strict contraception required
- Have ALS diagnosed by a doctor (specifically, sporadic or familial ALS diagnosed as clinically probable, lab-supported probable or definite ALS defined by the El Escorial criteria)
- Have had symptoms of ALS (muscle weakness) within 36 months of starting this study
- Have the ability to slowly exhale a volume of air at least 60% of what is expected for the participant's sex, height and age
- Have not received treatment for ALS or are currently on a stable dose of an approved treatment for ALS. Patients currently receiving Tofersen are not eligible.
- Able to receive the study injection intrathecally, determined by the study doctor
- Able to undergo the study procedures and adhere to the study visit schedule at the time of study entry, with an estimated life expectancy of 6 months or greater
You may not qualify if:
- Have an implanted shunt to drain cerebrospinal fluid (CSF) or an implanted CNS catheter
- Have an implanted of diaphragm pacing system
- Tracheostomy
- History or current diagnosis of cardiac conditions or ECG abnormalities indicating significant risk of safety for participants in the study
- History or current diagnosis of respiratory conditions such as COPD
- History or current diagnosis of cancer, chemical meningitis, HIV, Hep B, Hep C, uncontrolled diabetes
- Presence of an autoimmune condition (for example, rheumatoid arthritis or lupus) requiring treatment or immunodeficiency
- Clinical or laboratory evidence of hepatic or renal disease/injury.
- Taking any prohibited medications
- Women who are pregnant or nursing
- Use of any investigational drugs or devices within 30 days or 5 half-lives of the study agent (whichever is longer). Exception: Observational, non-interventional clinical studies are allowed in the opinion of the study doctor.
- Any other condition that the study doctor feels could compromise the participant's safety, ability to communicate with the study staff, or the quality of the data
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (4)
Barrow Neurological Institute (St. Joseph's)
Phoenix, Arizona, 85013, United States
Johns Hopkins University
Baltimore, Maryland, 21205, United States
Massachusetts General Hospital
Boston, Massachusetts, 02114, United States
Henry Ford Health
Detroit, Michigan, 48202, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SEQUENTIAL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 20, 2024
First Posted
November 26, 2024
Study Start
November 1, 2025
Primary Completion (Estimated)
March 1, 2027
Study Completion (Estimated)
March 1, 2027
Last Updated
April 6, 2025
Record last verified: 2025-04
Data Sharing
- IPD Sharing
- Will not share