About this trial
The investigators propose a gene therapy strategy using chemical genetic inhibition to intervene in the abnormal activity of the subthalamic nucleus in Parkinson's disease. The investigators design and construct a highly efficient therapeutic injection STP-001 (first drug), through the efficient adeno-associated virus capsid (AAV), neuronal promoter (hSyn), and chemical genetic effector element (hM4Di), and accurately inject the drug into the bilateral subthalamic nucleus, the core pathological nucleus of Parkinson's disease, through stereotactic technology. Combined with a very low dose of clozapine (the second drug), the abnormal activity of the subthalamic nucleus is precisely intervened to improve the core motor symptoms of Parkinson's disease.
Eligibility criteria
Qualifiers
Clinically diagnosed with idiopathic Parkinson's Disease [in accordance with the Diagnostic Criteria for Parkinson's Disease in China published in 2016, or in accordance with the Diagnostic Criteria for Primary PD of the International Parkinson's and Movement Disorders Society (MDS) in 2015];
Subjects aged 40-65 years old (including the boundary value), regardless of gender;
Medical history of disease ≥5 years;
Hoehn-Yahr staging scale for "off" period is 2.5-4;
Disqualifiers
Atypical or secondary Parkinson's syndrome (such as Parkinson's plus syndrome, hereditary Parkinson's syndrome, drug-induced Parkinson's syndrome);
Contraindications to surgery or previous deep brain stimulation surgery, pallidotomy, extrapyramidal surgery, other brain surgeries, or other neurosurgery that the researcher determines will affect their participation in this trial;
Previous cranial imaging suggests abnormal brain structure, cerebrovascular malformations, intracranial tumors, intracranial hemorrhage risk, brain trauma, and other abnormalities;
Mini-Mental State Examination (MMSE) score <24 points;
Trial design
Treatments tested in this trial
- gene therapy
- clozapine