NCT03065192

Brief Summary

Safety and efficacy of AADC gene transfer in participants with Parkinson's disease.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
16

participants targeted

Target at below P25 for phase_1

Timeline
Completed

Started May 2017

Longer than P75 for phase_1

Geographic Reach
1 country

4 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 10, 2017

Completed
17 days until next milestone

First Posted

Study publicly available on registry

February 27, 2017

Completed
2 months until next milestone

Study Start

First participant enrolled

May 11, 2017

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 10, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 10, 2021

Completed
Last Updated

March 21, 2022

Status Verified

March 1, 2022

Enrollment Period

4.3 years

First QC Date

February 10, 2017

Last Update Submit

March 17, 2022

Conditions

Keywords

Gene TherapyPDParkinson's DiseaseAromatic L- Amino Acid DecarboxylaseAADCAAV2-AADCAAV2Viral VectorGene TransferMRIPETVY-AADC01

Outcome Measures

Primary Outcomes (5)

  • Grading of adverse Events/Serious Adverse Events (AE's/SAE's)

    Grading will be assessed using NCI CTCAE, version 4.03.

    Baseline to 3 Years After Gene Transfer

  • Magnetic Resonance Imaging (MRI)

    Safety of VY-AADC01 will be assessed by any clinically significant abnormalities on MRI scans as compared to Baseline.

    Baseline to 3 Years After Gene Transfer

  • Routine physical examinations

    Safety of VY-AADC01 will be assessed by routine physical examinations.

    Baseline to 3 Years After Gene Transfer

  • Routine clinical laboratory analysis

    Safety of VY-AADC01 will be assessed by routine clinical laboratory analysis.

    Baseline to 3 Years After Gene Transfer

  • Change in Columbia-Suicide Severity Rating Scale (C-SSRS) results

    C-SSRS is a standardized suicidal rating system.

    Baseline to 3 Years After Gene Transfer

Secondary Outcomes (16)

  • Change in Parkinson's medications

    Baseline to 3 Years After Gene Transfer

  • Change in motor function using Parkinson Disease Diaries

    Baseline to 3 Years After Gene Transfer

  • Change in motor function using a Stand-Walk-Sit Test

    Baseline to 3 Years After Gene Transfer

  • Change in motor function using Modified Hoehn and Yahr Scale

    Baseline to 3 Years After Gene Transfer

  • Change in motor function using Unified Parkinson's Disease Rating Scale (UPDRS)

    Baseline to 3 Years After Gene Transfer

  • +11 more secondary outcomes

Study Arms (1)

VY-AADC01 Single Dose

EXPERIMENTAL

9.4 x 10\^12 vector genomes of VY-AADC01

Drug: VY-AADC01

Interventions

Single dose, neurosurgically infused, bilaterally into the striatum.

VY-AADC01 Single Dose

Eligibility Criteria

Age40 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosed with idiopathic PD.
  • Adequate duration of levodopa therapy.
  • Disease duration of at least 5 years or more.
  • Modified Hoehn \& Yahr Staging with at least 2.5 hours or more in the OFF state.
  • Candidate for surgical intervention because of disabling motor complications.
  • UPDRS Part III (total score) of at least 25 in the OFF state.
  • Unequivocal responsiveness to dopaminergic therapy.
  • Stable Parkinson's symptoms and medications for at least 4 weeks prior to screening evaluation.
  • Ability to comprehend and sign the informed consent.
  • Normal laboratory values prior to surgery.
  • Medically and mentally capable of undergoing and complying with the surgical procedure and protocol requirements.
  • Ability to travel to study visits alone or able to designate a caregiver.
  • Subject agrees to defer any neurological surgery, including deep brain stimulation, until after completing the 12 month study visit (unless recommended by study neurologist).
  • Approved by the Eligibility Review Committee.

You may not qualify if:

  • Atypical or secondary parkinsonism, including but not limited to symptoms believed to be due to trauma, brain tumor, infection, cerebrovascular disease, other neurological disease, or to drugs, chemicals, or toxins.
  • Presence of dementia as defined by a Mattis Dementia Rating Scale - Second Edition (MDRS-2) score of less than 130 at screening.
  • Presence or history of psychosis, with the exception of mild, benign hallucinations believed in the judgment of the Investigator to be related to Parkinson's medications.
  • Presence of severe depression, as indicated by a BDI-II score greater than 28, or a history of a major affective disorder within 5 years of screening evaluation.
  • Active suicidal ideation or suicide attempt within 5 years of screening evaluation.
  • History of substance abuse within 2 years of screening evaluation.
  • Brain imaging abnormalities in the striatum or other regions that would substantially increase risk of surgery.
  • Contraindication to MRI and/or gadoteridol.
  • Coagulopathy or inability to temporarily stop any anticoagulation or antiplatelet therapy prior to surgery.
  • Prior brain surgery including lesioning procedures, deep brain stimulation, infusion therapies or any other brain surgery.
  • Prior gene transfer.
  • History of stroke, poorly controlled or significant cardiovascular disease, diabetes, or any other acute or chronic medical condition.
  • History of malignancy other than treated carcinoma in situ within 3 years of screening evaluation.
  • Clinically apparent or laboratory-detected infection.
  • Prior or current treatment with any investigational agent within 2 months of screening evaluation.
  • +10 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

University of California, San Francisco (UCSF)

San Francisco, California, 94143, United States

Location

Emory University

Atlanta, Georgia, 30322, United States

Location

Ohio State University (OSU)

Columbus, Ohio, 43210, United States

Location

University of Pittsburgh Medical Center (UPMC)

Pittsburgh, Pennsylvania, 15213, United States

Location

Related Links

MeSH Terms

Conditions

Parkinson DiseaseBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesMovement DisordersNervous System DiseasesNeurodegenerative DiseasesParkinsonian Disorders

Condition Hierarchy (Ancestors)

Synucleinopathies

Study Officials

  • Steve Hersch, MD

    Voyager Therapeutics, Inc.

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 10, 2017

First Posted

February 27, 2017

Study Start

May 11, 2017

Primary Completion

August 10, 2021

Study Completion

August 10, 2021

Last Updated

March 21, 2022

Record last verified: 2022-03

Data Sharing

IPD Sharing
Will not share

Locations