About this trial
To evaluate the safety, tolerability and preliminary efficacy study of a single intrathecal injection of the dual vector AAV-CHD3-R1025W base editor for the treatment of developmental disorders caused by the R1025W mutation in the CHD3 gene
Eligibility criteria
Qualifiers
Clinical diagnosis of Snijders Blok-Campeau syndrome
Heterozygous mutation of c.3073C>T, p.(Arg1025Trp) in the CHD3 gene
Normal liver, heart and immune function
Normal coagulation and platelet counts
Disqualifiers
Brain tumor or intracranial space-occupying lesion
Contraindications to administration of lumbar puncture or sheath injection administration
Persistent status epilepticus or recurrent epileptic control instability
Presence of unstable systemic disease including active bacterial, fungal or HIV, hepatitis A, hepatitis B infection
Trial design
Treatments tested in this trial
- Dual vector DNA base editor
Treatment groups
Sponsors and collaborators
Yongguo Yu
Lead sponsor
Xinhua Hospital, Shanghai Jiao Tong University School of Medicine
Sponsor institution