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WithdrawnNCT06985303Updated Jul 22, 2025

Cell-Based Therapy for White Matter Repair in Periventricular Leukomalacia

An Early Phase 1 interventional study of Investigational Combination Product in Periventricular Leukomalacia, White Matter Disease and Hypoxic-Ischemic Encephalopathy, sponsored by MGAM LLC. Withdrawn. Per ClinicalTrials.gov, last updated 2025-07-22.

Sponsored by MGAM LLC · Early Phase 1, Interventional, and Treatment

Why this study was withdrawn
Based on a review of new preclinical findings, the sponsor has decided to conduct additional foundational research before initiating this clinical study. The study is withdrawn pending further investigation.
Phase
Early Phase 1
Study type
Interventional
Enrollment
0
Allocation
Not applicable
Sex
All
01

Study summary

The goal of this study is to explore a new treatment that may help repair brain damage in individuals with periventricular leukomalacia (PVL), a condition that affects white matter in the brain. Researchers are testing whether a combination of a novel cell therapy and specific molecular agents can support brain repair.

The main questions the study aims to answer are:

Can the treatment help regrow white matter and improve myelin repair? Does the treatment reduce scarring in the brain? Is the treatment safe and well-tolerated?

The study uses several components, including:

A specific type of neural progenitor cell to form the basis of the therapy. A small molecule compound to support cell function and survival. An agent designed to promote the repair of the myelin sheath. An enzyme intended to break down scar tissue in the brain. Researchers will study how these components work together to protect and repair the brain by influencing key pathways involved in damage and recovery.

02

Conditions studied

  • Periventricular Leukomalacia
  • White Matter Disease
  • Hypoxic-Ischemic Encephalopathy
  • Demyelinating Diseases
  • Neonatal Encephalopathy

Keywords

  • Periventricular Leukomalacia
  • Myelin Repair
  • White Matter Injury
  • Demyelination
  • Neonatal Brain Injury
  • Neuroregeneration
  • CNS Regeneration
  • Brain Repair
  • Neonatal Hypoxia
03

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Diagnosis of periventricular leukomalacia (PVL) confirmed by MRI
  • Clinically stable at time of intervention
  • Parental or legal guardian consent if participant is a minor

Exclusion criteria

Exclusion Criteria:

  • Severe congenital brain malformations unrelated to PVL
  • Active CNS infection or systemic inflammatory disease
  • History of severe intraventricular hemorrhage (Grade III/IV)
  • Known allergy or history of a significant hypersensitivity reaction to the investigational product or any of its components.
  • Participation in another interventional study within the past 30 days
04

Study design

Phase
Early Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    Experimental: Investigational Combination Therapy

    Participants will receive an investigational combination therapy. This therapy consists of a proprietary cell-based component administered with a cocktail of molecular and enzymatic agents. These agents are designed to support cell health, promote myelin repair, and reduce inhibitory factors in the damaged brain tissue. The overall goal of the intervention is to promote white matter regeneration in patients with periventricular leukomalacia by targeting key barriers that prevent natural repair.

    Combination Product: Investigational Combination Product

Interventions

  • Combination productInvestigational Combination Product

    This investigational therapy combines a proprietary, human-derived cell-based component with a unique blend of small molecules and an enzyme. The components are designed to work synergistically to address the complex pathology of white matter injury. The therapy aims to provide a source for cellular regeneration, support the survival of existing cells, enhance the potential for myelin repair, and modify the inhibitory environment of glial scar tissue. This multi-pronged biological intervention is designed to promote neural regeneration and functional recovery in patients with PVL.

05

What researchers measure

Primary outcomes

  1. Change in White Matter Integrity

    Measured using fractional anisotropy (FA) values derived from diffusion tensor imaging (DTI) MRI to assess structural white matter characteristics in brain regions affected by periventricular leukomalacia (PVL).

    Time frame: At baseline and 12 weeks post-intervention

Secondary outcomes

  1. Change in Functional Motor Score

    Measured using the Gross Motor Function Measure-88 (GMFM-88). The scale ranges from 0 to 100; higher scores indicate better motor function.

    Time frame: Baseline, 6 weeks, and 12 weeks post-intervention

  2. Change in Glial Scar Density

    Quantified using established biomarkers for astrogliosis, such as glial fibrillary acidic protein (GFAP), from cerebrospinal fluid or via advanced imaging. This outcome is intended to measure the biological activity of the therapy's scar-reducing component.

    Time frame: 12 weeks post-intervention

06

Study locations

No study locations are listed for this record.

07

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT06985303
Lead sponsor
MGAM LLC
Responsible party
Sponsor
First posted
May 22, 2025
Start date
Jan 1, 2027 (estimated)
Primary completion
Jan 1, 2030 (estimated)
Completion
Dec 31, 2031 (estimated)
Last update
Jul 22, 2025

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is withdrawn, as verified in Jul 2025. You cannot join it, but the record below documents what was studied.

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