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Clinical Study of Chemogenetic Gene Therapy with AAV virus for Parkinson's Disease Using Stereotactic Surgery in the Subthalamic Nucleus

Clinical Study of Chemogenetic Gene Therapy with AAV virus for Parkinson's Disease Using Stereotactic Surgery in the Subthalamic Nucleus

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600123282
Enrollment
Unknown
Registered
2026-04-23
Start date
2026-05-01
Completion date
Unknown
Last updated
2026-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Parkinson's disease

Interventions

Low titer group:Intracerebral injection of 1×10^12 VG/mL AAV2/9-hSyn-hM4Di injection solution into the bilateral subthalamic nuclei
High titer group:Intracerebral injection of 3×10^12 VG/mL AAV2/9-hSyn-hM4Di injection solution into the bilateral subthalamic nuclei

Sponsors

The Second Affiliated Hospital of Zhejiang University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All
Age
40 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1.Age range: 40 - 70 years (inclusive), gender not restricted; 2.Diagnosed with primary Parkinson's disease, with H&Y grade ranging from 4 to 5; 3.Disease duration of at least 5 years; 4.Response to levodopa treatment lasting for at least 12 months; 5.Score of the third part of the MDS Parkinson's Disease Rating Scale (MDS-UPDRS Part III) >= 35; 6.Improvement rate of the Madopar challenge test >= 30%; 7.Stable clinical symptoms and drug treatment for at least 4 weeks before screening; 8.Capable of understanding and voluntarily signing the informed consent form; 9.Participants agree to postpone any neurological surgery, including deep brain stimulation, until the completion of 12-month follow-up; 10.The efficacy of dopamine drugs has significantly decreased, or there are obvious motor complications, or severe drug side effects; 11.There are no acute adverse reactions to the prescribed olanzapine dose; 12.Good compliance and willing to complete all the follow-up as stipulated in this protocol.

Exclusion criteria

Exclusion criteria: 1.Has a past history of brain surgery for Parkinson's disease, such as deep brain stimulation, or other abnormal brain imaging findings; 2.Hamilton Depression Scale score >= 20; 3.Hamilton Anxiety Scale score >= 14; 4.Has a history of brain injury or central nervous system infection; 5.MoCA cognitive impairment score = 2.5 times the upper limit of normal (ULN)); 16.Any factor that may prevent the subject from following the study protocol, including medical or social factors, including geographical inconvenience; 17.Any other situation that the investigator deems unsuitable for participation in this study.

Design outcomes

Primary

MeasureTime frame
The incidence rate of adverse events related to the STP-001 injection;

Secondary

MeasureTime frame
The effectiveness indicators of the STP-001 injection;The incidence rate of adverse events of the STP-001 injection;

Countries

China

Contacts

Public ContactPu Jiali

The Second Affiliated Hospital of Zhejiang University School of Medicine

carrie_1105@163.com+86 571 87784752

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: May 1, 2026