人类脐带间充质干细胞来源外泌体治疗儿童自闭症的前瞻性临床研究 (EXO-ASD)

Inclusion Criteria:

• Diagnosis meets the ICD-11 ASD criteria or DSM-5 ASD clinical diagnostic standards.
• No significant improvement in core symptoms was observed after ≥3 months of standardized behavioral intervention.
• Score ≥30 on the CARS2, indicating mild-to-moderate or more severe autism.
• Aged 3 (inclusive) to 7 (inclusive) years, regardless of gender
• Voluntary participation in this clinical study, with written informed consent provided by the patient's legal guardian, and willingness to undergo examinations, treatment, and cooperate with follow-up visits.
• In the investigator's judgment, the patient is capable of understanding and complying with study requirements.

Exclusion Criteria:

• History of severe allergic reactions.
• Any severe mental disorder or other types of autism spectrum disorders.
• History of epileptic seizures within the past six months.
• Autism secondary to epilepsy, cerebrovascular disease, or traumatic brain injury.
• Disease severity rated as normal, borderline mental disorder, or mild mental disorder on the Clinical Global Impression scale.
• Moderate or severe extrapyramidal symptoms or tardive dyskinesia.
• Severe self-injurious behavior.
• Active systemic or severe localized infections, including human immunodeficiency virus, syphilis, and hepatitis.
• Autoimmune diseases.
• Major organ impairment.
• Severe pulmonary or hematological diseases, malignancies, or immunodeficiency.
• Concurrent treatments that may interfere with the safety and efficacy evaluation of stem cell therapy.
• Participation in other clinical trials within the past three months.
• Other clinical conditions deemed by investigators as unsuitable for study inclusion.