# The Correlation of Reduction of Levodopa and Non-motor Symptoms of Parkinson's Disease After Deep Brain Stimulation

> **NCT05901350** · NA · COMPLETED · sponsor: **Qilu Hospital of Shandong University** · enrollment: 338 (actual)

## Conditions studied

- Parkinson Disease
- Visual Impairment

## Interventions

- **DRUG:** Levodopa

## Key facts

- **NCT ID:** NCT05901350
- **Lead sponsor:** Qilu Hospital of Shandong University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2019-06-01
- **Primary completion:** 2022-06-01
- **Final completion:** 2023-01-01
- **Target enrollment:** 338 (ACTUAL)
- **Last updated:** 2023-07-25


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05901350

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05901350, "The Correlation of Reduction of Levodopa and Non-motor Symptoms of Parkinson's Disease After Deep Brain Stimulation". Retrieved via AI Analytics 2026-07-19 from https://api.ai-analytics.org/clinical/NCT05901350. Licensed CC0.

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