Study is to Assess the Safety and Tolerability of VTx-002 in Participants With ALS

Trial statusRecruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorVector Y Therapeutics

About this trial

PIONEER-ALS is a Phase 1/2, multicenter, open-label, ascending dose, uncontrolled, first-in-human study that will evaluate the safety, tolerability and effects on clinical and biomarker endpoints of intracisternal administration of Vtx-002 in participants with Amyotrophic Lateral Sclerosis (ALS).

Two escalating dose (low dose and high dose) cohorts are planned. The duration of the study will be a maximum of 5 years and 5 weeks (265 weeks) for each participant. The screening period may last up to 5 weeks to complete screening procedures.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Capable of, and willing to, provide written informed consent and comply with study procedures, including visits to the study site and visit requirements

Male or female ≥ 18 years of age

Has a diagnosis of ALS according to the El Escorial criteria (Brooks, et al., 2000) (probable, laboratory results supported; clinically probable, clinically definite)

Confirmed absence of ALS caused by FUS and SOD1 gene mutations confirmed by laboratory tests.

Disqualifiers

Diagnosis of a significant CNS or peripheral nervous system disease other than ALS that may be a cause for the participant's ALS symptoms or may confound study objectives

Spinal, cervical, or brain MRI/MRA indicating clinically significant abnormality

Presence of tracheostomy and feeding tube at Screening

Contraindications to corticosteroid use (e.g. due to osteoporosis, uncontrolled blood pressure, diabetes or cholesterol).

Trial design

Design model

Sequential

Treatments tested in this trial

  • VTx-002

    Genetic

    An investigational gene therapy targeting a specific protein.

  • Preventative (Prophylactic) Medication - Corticosteroids: Methylprednisolone

    Drug

    To reduce the risk of reactions caused by the study treatment, steroid medicines will be given in advance.

Treatment groups

12 Participants
are divided into 2 treatment groups
Group A: Gene Therapy Group 1: Dose 1 (Low Dose)Experimental treatment 2 interventions
Group B: Gene Therapy Group 2: Dose 2 (High Dose)Experimental treatment 2 interventions

Trial outcomes

Primary outcomes

1

The number of participants with treatment related adverse events (AEs) and Serious Adverse Events (SAEs)

Assessed by reviewing the nature, incidence, severity, relatedness, seriousness and outcome of treatment emergent adverse events.

Time frame
Over 5 years
2

The number of participants with treatment related adverse events (AEs) and Serious Adverse Events (SAEs)

Assessed by reviewing laboratory values

Time frame
Over 5 years
3

The number of participants with treatment related adverse events (AEs) and Serious Adverse Events (SAEs)

Assessed by reviewing Magnetic Resonance Imaging (MRI) findings.

Time frame
Over 5 years
4

The number of participants with treatment related adverse events (AEs) and Serious Adverse Events (SAEs)

Assessed by review of Treatment Induced Peripheral Neuropathy Assessment Scale (TNAS) \*TNAS a brief participant-reported questionnaire used to measure the severity and progression of peripheral neuropathy. Each item is rated on a scale of 0 to 10, where 0 means no symptom and 10 means the symptom is as bad as it can possibly be.

Time frame
over 5 years

Secondary outcomes

1

To assess whether VTx-002 works to prevent the progression of ALS and what dose can be used for future clinical studies.

Changes certain blood values

Time frame
At month 6 and month 12
2

To assess whether VTx-002 works to prevent the progression of ALS and what dose can be used for future clinical studies.

Time to assisted permanent ventilation or death

Time frame
over 12 months
3

To assess whether VTx-002 works to prevent the progression of ALS and what dose can be used for future clinical studies.

Immune responses assessed by analyzing blood samples

Time frame
Over 5 years
4

To assess whether VTx-002 works to prevent the progression of ALS and what dose can be used for future clinical studies.

Change in Slow Vital Capacity

Time frame
At month 6 and month 12

Other outcomes

1

To assess changes in biomarkers

Analysis of blood samples to assess viral shedding

Time frame
Over 5 years
2

To assess changes in muscle strength assessments from baseline.

Change in muscle strength measured by Hand-held Dynamometry

Time frame
Measured at month 6 and month 12
3

To assess disease severity and improvement

Disease severity and improvement measured using the Clinical Global Impression (CGI) scales for Severity (CGI-S) and Improvement (CGI-I). The CGI scales each use a seven-point scale where 1 indicates less severe (CGI-S) or most improved (CGI-I) and 7 indicates more severe illness (CGI-S) or worsening of condition (CGI-I)

Time frame
over 12 months
4

To assess immunogenicity of VTx002

Assessed by the review of the immunogenicity to the capsid and transgene by analyzing blood samples.

Time frame
Over 5 years

Sponsors and contacts

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