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Dopaminergic Mechanism of Memory Impairment in Parkinson's Disease

Dopaminergic Mechanism of Temporal Working Memory Impairment in Parkinson's Disease

Status
UNKNOWN
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04968613
Enrollment
150
Registered
2021-07-20
Start date
2018-01-01
Completion date
2021-12-31
Last updated
2021-07-20

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

Conditions

Memory Impairment, Parkinson Disease

Brief summary

The cognitive impairment of Parkinson's disease is non amnestic, which is characterized by working memory impairment and executive dysfunction. The current drug therapy (such as levodopa, dopamine receptor agonists) and surgical treatment (such as deep brain electrical stimulation, thalamic lesion) not only can not effectively alleviate cognitive impairment, but also may aggravate cognitive and speech behavior abnormalities. This project will explore how dopamine regulates temporal working memory in human research by combining drug intervention, neuroimaging and cognitive tasks.

Detailed description

Parkinson's disease (PD) is a common neurodegenerative disease in the elderly. The incidence rate of China's disease is 1.7% in the population over 65 years old. The latest research shows that Parkinson's disease is not a simple motor disorder, but a multi organ dysfunction disorder with both motor symptoms and non motor symptoms. With the development of the disease, more than 80% of the PD patients will develop dementia. Different from the amnestic cognitive impairment of Alzheimer's disease, the cognitive impairment of Parkinson's disease is non amnestic, characterized by working memory impairment and executive dysfunction. The current mainstream drug therapy (such as levodopa, dopamine receptor agonists) and surgical treatment (such as deep brain electrical stimulation, thalamic lesion) can not effectively alleviate cognitive impairment, and may even aggravate cognitive and speech behavior abnormalities, We should first understand the neurochemical (molecular) mechanisms of working memory impairment and executive dysfunction in Parkinson's disease. A prospective single blind randomized controlled design was used. Newly diagnosed PD patients were randomly assigned to three treatment groups: Madopar monotherapy group (n = 50), senfrol monotherapy group (n = 50) and placebo group (n = 50). Objective to study the performance of temporal working memory in PD patients and reveal the dopaminergic mechanism of temporal working memory.

Interventions

DRUGMadopar monotherapy

In addition to basic treatment, the patient also received Madopar treatment

DRUGsenfrol monotherapy

In addition to the basic treatment, the patient also received the rofosson treatment

In addition to basic treatment, the patient also received selegiline treatment

Sponsors

Chinese Academy of Sciences
CollaboratorOTHER_GOV
Peking University Third Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
50 Years to 80 Years
Healthy volunteers
Yes

Inclusion criteria

* Inclusion criteria for PD patients: age 50-80 years old; Junior high school or above, able to read and sign informed consent; Primary PD has just been diagnosed, Hoehn Yahr grade 1-2.5, and has not received any drug or non drug treatment. The inclusion criteria of healthy control group: age 50-80 years old; Junior high school or above, able to read and sign informed consent.

Exclusion criteria

* The

Design outcomes

Primary

MeasureTime frameDescription
Evaluation of cognition function12 months after the trailThe score of MontrealCognitiveAssessment(MoCA),ranging from 0-30,with higher socre means better outcome

Secondary

MeasureTime frame
Task state fMRI scanningBefore drug treatment

Countries

China

Contacts

Primary ContactYingshuang Zhang
zhangys0317@126.com18511650863

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026