ClinicalTrials.gov record NCT07289477
A Phase I/III Clinical Study to Evaluate NouvNeu001 Injection for Multiple System Atrophy
A Phase I/III Clinical Study to Evaluate the Safety, Tolerability, and Efficacy of Intracerebral Putamen Transplantation of NouvNeu001 Injection for Multiple System Atrophy
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AI-written from the registry record, not the study's own wording. May contain errors or omissions. Check the registry text on this page and the original record ↗ before acting on it.
This Phase I/III interventional study evaluates a single injection of human dopaminergic progenitor cells (NouvNeu001) into the putamen/striatum in people with Multiple System Atrophy — Parkinsonian subtype (MSA-P). Participants are randomized in a sequential low‑dose cohort; some receive the injection and some are controls who do not receive the injection. The study follows safety, clinical rating scales, and brain dopamine imaging for up to 52 weeks.
What it is studying. The study is testing whether a single intracerebral transplantation of Human Dopaminergic Progenitor Cells (NouvNeu001) is safe and tolerable in people with MSA-P, and it collects early data on clinical scores and brain dopaminergic metabolism after the procedure.
What the researchers hope to learn. To evaluate the safety and tolerability of intracerebral NouvNeu001 injection; to gather preliminary efficacy data using UMSARS and CGI-S clinical ratings and dopaminergic PET imaging (DAT PET) over 52 weeks.
What this study is about
The study's own summary, as published on ClinicalTrials.gov. Underlined terms have a short explanation.
This clinical trial is designed to evaluate the safety, tolerability and preliminary efficacy of a single injection of NouvNeu001 (Human Dopaminergic Progenitor Cells Injection) in patients with Multiple System Atrophy.
Interventions being studied
Being studied in this trial does not mean the treatment or procedure is approved or available for this condition.
- Biological
- Human Dopaminergic Progenitor Cells
Eligibility
The criteria exactly as listed on ClinicalTrials.gov. Only the study team can say whether they apply to you.
Inclusion criteria
- Aged between 30 and 70 years (inclusive), regardless of gender.
- The subject understands and agrees to comply with the study procedures and voluntarily provides written informed consent.
- Diagnosed with pathologically confirmed, clinically established, or clinically probable Multiple System Atrophy (MSA) according to the 2022 MDS diagnostic criteria.
- Current treatments for core MSA symptoms are inadequately controlled.
- The duration of MSA-related motor symptoms (parkinsonism and/or cerebellar ataxia) is no more than 5 years.
- Ability to walk without human assistance, defined as being able to take at least 10 steps; the use of assistive devices (e.g., a walker or cane) is permitted.
- Life expectancy of at least 3 years.
- The subject agrees not to participate in any other clinical studies for 24 months following the investigational product administration.
Exclusion criteria
- Neurological diseases/disorders other than Multiple System Atrophy, such as Parkinson's disease, Dementia with Lewy Bodies, Essential Tremor, Progressive Supranuclear Palsy, Spinocerebellar Ataxia, Hereditary Spastic Paraplegia, Corticobasal Degeneration, Vascular Parkinsonism, Normal Pressure Hydrocephalus, or Drug-induced/Postencephalitic Parkinsonism.
- Diagnosis of dementia.
- Previous or current receipt of other disease-modifying therapies, or participation in clinical trials of other new drugs or novel therapies.
- Use of medications within the past 3 months that may affect Parkinsonian symptoms, autonomic function, or the evaluation of safety.
- Presence of clinically significant or unstable medical or surgical conditions that may preclude the safe completion of the treatment or confound the treatment outcomes.
- History of or undergoing treatment for recurrent stroke.
- Screening brain MRI shows other significant pathological findings, including but not limited to: cerebral hemorrhage, acute cerebral infarction, aneurysm, vascular malformation, infectious lesions, brain tumors, or other space-occupying lesions (meningiomas or arachnoid cysts with a maximum diameter of less than 1 cm do not warrant exclusion).
- Subjects meeting any of the following criteria indicating advanced disease:
- Speech impairment defined by a score of ≥3 on UMSARS Item 1. Swallowing impairment defined by a score of ≥3 on UMSARS Item 2. Walking impairment defined by a score of ≥3 on UMSARS Item 7. Occurrence of falls more than once per week, defined by a score of ≥3 on UMSARS Item 8.
- History of current substance abuse and/or alcohol abuse (within 12 months prior to screening).
- Known allergy to the investigational product(s); or history of allergy to antibiotics or other drugs.
- Positive screening results for active viral infection, including Human Immunodeficiency Virus (HIV), Hepatitis B Surface Antigen (HBsAg), Hepatitis B Core Antibodies, or Hepatitis C Virus (HCV).
- Severe hepatic insufficiency, renal insufficiency, or severe cardiac insufficiency:
- Severe hepatic insufficiency: ALT ≥ 2.0 × upper limit of normal (ULN) or AST ≥ 2.0 × ULN.
- Severe renal insufficiency: Serum creatinine ≥ 1.5 × ULN or estimated Glomerular Filtration Rate (eGFR) < 40 mL/min/1.73 m².
- Severe cardiac insufficiency: New York Heart Association (NYHA) Class 3 or 4.
- History of thrombocytopenia within the past three months, other bleeding disorders, or current receipt of anticoagulant therapy (excluding aspirin at a dose ≤ 100 mg per day).
- Pregnancy, lactation, or planning pregnancy.
- History of Bipolar Disorder, Major Depressive Disorder, Schizophrenia, or other psychotic disorders.
- Subjects judged by the investigator to have suicidal ideation at screening, or a suicide attempt within 6 months prior to screening.
- Contraindications for surgery (e.g., implantation of cochlear implants, pacemakers, defibrillators, history of stereotactic ablation, previous implantation of unilateral/bilateral similar products) or history of other surgeries within the past 6 months deemed by the investigator to potentially affect this trial, or other neurosurgical contraindications.
- Clinically significant cardiac disease defined as: myocardial infarction, NYHA Class III or IV heart failure, uncontrolled coronary spasm, severe uncontrolled ventricular arrhythmia, or evidence of acute ischemia or abnormal conduction system on ECG within 6 months prior to enrollment.
- Diagnosis of malignancy.
- Family history of congenital or inherited immunodeficiency disorders.
- Considered by the investigator to have poor compliance.
- Any other significant disease or condition that, in the investigator's judgment, may jeopardize the subject's safety or interfere with the study assessments.
Study description and what participation involves
The registry record has no detailed description beyond the summary above.
AI summaryWhat participation may involve, in plain languageShow ▾Hide ▴
AI-written from the registry record, not the study's own wording. May contain errors or omissions. Check the registry text on this page and the original record ↗ before acting on it.
Participants undergo screening including brain MRI and blood tests (including infection and organ‑function tests). After screening and randomization, some participants will receive a single injection of Human Dopaminergic Progenitor Cells into the putamen/striatum of the brain; others will be in a control group that does not receive the injection. Follow‑up includes safety monitoring for 52 weeks, clinical rating scale assessments (UMSARS and CGI‑S) at Weeks 13, 26, and 52, and dopaminergic imaging (DAT PET) at Week 52. Participants must agree to the study procedures and the 24‑month restriction on joining other clinical studies after treatment.
How the study is structured. Interventional, randomized, open-label (no masking) Phase I/III study using a sequential dosing approach. In a low-dose cohort participants are randomized to receive a single injection of NouvNeu001 into the putamen/striatum or to a control group that does not receive the injection. Participants are followed for safety and effects on clinical rating scales (UMSARS, CGI-S) and undergo dopaminergic PET imaging, with key assessments up to 52 weeks after the procedure.
Questions you could ask
These questions are suggestions for a conversation with the study team or your own clinician, not advice.
- This is an early-phase study, mainly about safety and dose. What is already known about this treatment?
- The listed sites are in China. Is any of them reachable for me, and does the study help with travel?
- Which of the eligibility criteria would need to be checked with tests before I could join?
More on multiple system atrophy
Important dates
- Study start
- Jan 5, 2026
- Primary completion
- October 2027 (estimated)
- Study completion
- July 2031 (estimated)
- Target enrollment
- 9 participants (estimated)
- Last updated on registry
- Apr 14, 2026
- Data verified
- Oct 10, 2026
Sponsor and research team
The lead sponsor funds and oversees the trial. A pharmaceutical or biotech company sponsor typically means the study is testing that company's drug or device; a hospital, university, or government agency usually indicates investigator-initiated or publicly funded research.
- Lead sponsor
- iRegene Therapeutics Co., Ltd.
Central study contact
If you're interested in participating, the central contact can answer general questions about the study — including eligibility requirements and how to find a recruiting site near you. Actual eligibility is determined by the site's medical team.
- Meng Cai, Ph.D 📞 0086-027-59337986 ✉ caimeng@iregene.com
- Jing Zhao, PhD ✉ zhaojing@iregene.com
Participating sites (1)
- Beijing Tiantan Hospital, Capital Medical UniversityRecruiting
Beijing, Beijing Municipality, 100730 · China
- Yilong Wang · 010-59978538 · yilong528@aliyun.com
Terms used on this page · explanations by MedicalUpdates.ai
- written informed consent
- The process of explaining a study, including its risks and what participation involves, so that a person can decide freely whether to take part. Consent is usually documented in writing, and a participant can choose to leave the study later.
- Life expectancy
- Some studies require that, in the investigator's judgement, a participant is likely to live long enough to complete the study period. It is a study requirement, not a prediction about any individual.
- investigational product
- A treatment that is being tested and has not been approved for this use. It may be approved for a different condition. Being studied does not mean it works or is available outside the study.
- MRI
- A scan that uses magnets and radio waves, not X-rays, to make detailed pictures of the inside of the body. Some implants and metal objects mean a person cannot have one.
- prior to screening
- The checks done before enrolment to see whether a person qualifies, such as tests, scans or a review of medical history.
- upper limit of normal
- The highest value of a blood test that a laboratory considers normal. Criteria such as '≤ 3 × ULN' mean the result must be no more than three times that value.
- estimated Glomerular Filtration Rate
- A blood-test estimate of how well the kidneys are filtering. Lower numbers mean reduced kidney function; many studies set a minimum value.
- Contraindications
- A reason a particular test or treatment should not be used for a person, for example a metal implant that rules out an MRI scan.
- ECG
- A recording of the heart's electrical activity. QTc is one measurement from it; some drugs are avoided if it is prolonged.
- enrollment
- The number of participants a study plans to include, or has included. 'Estimated' means the planned number; 'actual' means the number who joined.
- Inclusion Criteria
- The conditions a person must meet to be considered for the study, for example a confirmed diagnosis, an age range or a test result.
- Exclusion Criteria
- The conditions that rule a person out even if they meet the inclusion criteria, for example other illnesses, certain medicines or pregnancy.
The study record on this page is reproduced from ClinicalTrials.gov, a database of the U.S. National Library of Medicine, where it was submitted by the study sponsor. MedicalUpdates.ai does not own this content, is not affiliated with or endorsed by ClinicalTrials.gov, NIH, or the U.S. Government, and does not verify the record. Plain-language notes, the glossary and the questions above are added by this site; text in the boxes marked "AI summary" was written by an AI model and may contain errors. Registry records change over time. Check the original record for the current version and discuss eligibility or participation with a qualified healthcare professional.
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