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Clinical Trials/NCT07451613
NCT07451613
Recruiting
Phase 1

Phase 1B/2A Study of the Safety and Tolerability of Human Neural Stem Cells for Huntington's Disease

Leslie Thompson1 site in 1 country21 target enrollmentStarted: April 6, 2026Last updated:
InterventionshNSC-01

Overview

Phase
Phase 1
Status
Recruiting
Sponsor
Leslie Thompson
Enrollment
21
Locations
1
Primary Endpoint
Number of participants with treatment-related adverse events as assessed by CTCAE v5.0 after 6 and 12 weeks after dosing.

Overview

Brief Summary

The purpose of this research study is to determine whether an implantation of hNSC-01 is a safe and tolerable study intervention for Huntington's disease. This study is the first time that hNSC-01 is being tested in people.

Study Design

Study Type
Interventional
Allocation
Non Randomized
Intervention Model
Sequential
Primary Purpose
Treatment
Masking
None

Eligibility Criteria

Ages
18 Years to 65 Years (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Please note this may not be a complete list of eligibility criteria.
  • Inclusion Criteria:
  • Have decision-making capacity and be able to provide written informed consent.
  • Are between 18 to 65 years of age
  • Have genetically confirmed diagnosis of Huntington's Disease
  • Able to undergo MRI scans, tolerate neurosurgical procedure, blood draws and lumbar puncture.

Exclusion Criteria

  • Are pregnant
  • Test positive for human immunodeficiency virus (HIV), hepatitis C or chronic hepatitis B at Screening
  • Have an implanted deep brain stimulation device.

Arms & Interventions

Cohort A

Active Comparator

Unilateral, low dose

Intervention: hNSC-01 (Biological)

Cohort B

Active Comparator

Bilateral, low dose

Intervention: hNSC-01 (Biological)

Cohort C

Active Comparator

Bilateral, mid-dose

Intervention: hNSC-01 (Biological)

Cohort D

Active Comparator

Bilateral, high dose

Intervention: hNSC-01 (Biological)

Outcomes

Primary Outcomes

Number of participants with treatment-related adverse events as assessed by CTCAE v5.0 after 6 and 12 weeks after dosing.

Time Frame: Safety is assessed 6 weeks following each surgery for Cohort A and 12 weeks following cohort B-D completion

To determine the safety and tolerability of hNSC-01s implanted into the striatum of individuals affected with HD.

Secondary Outcomes

  • Number of participants with treatment-related adverse events as assessed by CTCAE v5.0 after 12 months after dosing.(12 months)
  • Change in Total Motor Score (TMS)(12 months)
  • Change in Functional Imaging: FDG-PET(12 months)
  • Change in structural MRI(12 months)
  • Change in NfL in CSF.(12 months)
  • Change in NfL in plasma.(12 months)
  • Change in PENK levels in CSF.(12 months)
  • Change in cognition using the MMSE.(12 months)
  • Change in cognition using Stroop Word Reading Test.(12 months)
  • Change in Total Functional Capacity (TFC)(12 months)
  • Change in Problem Behaviors Assessment-short version(12 months)

Investigators

Sponsor
Leslie Thompson
Sponsor Class
Other
Responsible Party
Sponsor Investigator
Principal Investigator

Leslie Thompson

Bren Professor, Departments of Psychiatry and Human Behavior, Neurobiology and Behavior, and Biological Chemistry, Co-Director, UCI Sue & Bill Gross Research Center

University of California, Irvine

Study Sites (1)

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