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Phase I/II Clinical Trial of UX-DA003 Injection for the Treatment of Patients With Parkinson's Disease

Phase I/II Clinical Trial Evaluating the Safety, Tolerability and Preliminary Efficacy of UX-DA003 Injection in Patients With Parkinson's Disease

Status
Not yet recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07733349
Enrollment
12
Registered
2026-07-29
Start date
2026-08-03
Completion date
2032-08-31
Last updated
2026-07-29

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

Conditions

Parkinson's Disease

Keywords

allogeneic iPSC derived mDAPs, Parkinson's Disease

Brief summary

This clinical study is designed to explore the safety and tolerability of UX-DA003. It will also explore if UX-DA003 works to improve motor function in subjects with Parkinson's disease.

Detailed description

This study is an open-label, multicenter, two-stage, Phase I/II clinical trial. Phase I study is a single-arm, open-label, dose-escalation clinical study aimed at evaluating the safety, tolerability, and preliminary efficacy of UX-DA003 transplantation therapy for PD patients across different dosage groups, as well as determining the recommended Phase II dose (RP2D). Eligible participants include PD patients who have experienced significant decline in response to standard anti-PD treatment and have not undergone DBS surgery. The study plans to establish two dosage. A total of 12 patients are planned for enrollment. Each patient will undergo a single dose of UX-DA003 for bilateral putamenal cell transplantation. Phase II study is a single-arm, open-label, single-dose study aimed at further evaluating the efficacy and safety of UX-DA003 for the treatment of PD patients at the RP2D dose, providing evidence for Phase III confirmatory clinical studies. The enrollment population is the same as in the clinical Phase I. This phase includes only one dose group, with the dose being the recommended dose (RP2D) determined in the Phase I stage. The trial visit schedule includes screening period (D-30\ D-8), baseline period (D-7\ D-1), surgery and postoperative observation period (D0\ D28), and follow-up period (M3\ M24).Patients who have completed the 24-month follow-up will enter the long-term follow-up period.

Interventions

DRUGUX-DA003

UX-DA003 (Human Allogeneic iPSC-derived Midbrain Dopaminergic Progenitor cells) is used for treating patients with PD via implanting into bilateral putamina under stereotactic neurosurgery.

Sponsors

Shanghai UniXell Biotechnology Co., Ltd
Lead SponsorINDUSTRY
Ruijin Hospital
CollaboratorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
30 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Aged between 30 and 75 years, regardless of gender * Diagnosed with Parkinson's disease conforming to relevant clinical diagnostic standards with a medical history of 5-20 years * Having received standard anti-PD treatment and been given optimal anti-PD treatment under the guidance of the investigator, but the efficacy has significantly declined * Good response to levodopa medications, the levodopa challenge test (LCT) shows that the maximum improvement rate of the UPDRS-III score exceeds 30% * The modified H\&Y staging (Off period) of ≥2.5 and ≤4, with total daily "off" time \>2 hours * Stable dose of anti-Parkinson' disease drugs for at least 4 weeks prior to screening * Good physical condition or stable concomitant diseases

Exclusion criteria

* The subjects with atypical Parkinson's syndrome or secondary Parkinson's syndrome * Severe systemic diseases or functional impairments * Evidence of active infection or chronic infection, which may pose a risk to the subject * Severe concomitant central nervous system diseases or severe cognitive and psychiatric disorders * Subjects with a history of brain injuries, cerebral vascular malformations, hydrocephalus, brain tumors, or other brain damages as shown by previous Head CT/MRI scans, or subjects with abnormal brain imaging in the striatum or other brain regions that significantly increase surgical risks * Subjects who have participated in clinical trials for stem cell therapy or gene therapy for Parkinson's disease, or have participated in other interventional clinical trials within the last 3 months * Subjects with a history of severe allergies or hypersensitivity reactions, known hypersensitivity to the investigational drug or its ancillary materials, or intolerance to them * Pregnant or breastfeeding women

Design outcomes

Primary

MeasureTime frame
Incidence and severity of adverse events (AEs) and serious adverse events (SAEs)Within 6 months after administration

Secondary

MeasureTime frame
Changes in 18F-FP-CIT uptake detected by positron emission tomography (PET)Within 24 months after administration
Changes in MDS-UPDRS scoresWithin 24 months after administration
Changes in modified H&Y stagingWithin 24 months after administration
Changes in daily levodopa equivalent dose (LED)Within 24 months after administration
Changes in average daily 'off' and 'on' duration while awakeWithin 24 months after administration

Countries

China

Contacts

CONTACTJun Liu, MD, PhD
jly0520@hotmail.com+86-21-64370045

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 30, 2026