A Phase 1/2 Clinical Study to Evaluate the Safety, Tolerability, Feasibility, and Preliminary Efficacy of NouvNeu001 in Patients With Advanced Parkinson's Disease.

Inclusion Criteria: Age • Male or female patient must be 30 to 75 years of age inclusive, at the time of signing the informed consent form (ICF). Type of Patient and Disease Characteristics * Diagnosis of PD between past 4 to 20 years (meet MDS 2015 clinical diagnostic criteria for PD). * H-Y staging (Appendix III) for "OFF" episodes is 2.5-4.0. * MDS-UPDRS-III score \> 35, and positive for the Acute levodopa challenge test (ALCT) (improvement \> 30% for MDS UPDRS-III staging from OFF episodes to ON episodes) over two screening period visits. Baseline scores will be computed as the means o…