Safety and Efficacy Study of NGGT002 in PKU Adult Subjects

Trial statusRecruiting
Trial phaseEarly Phase 1
Trial typeInterventional
Biological sexAll
Age18+
SponsorThe First Affiliated Hospital of Bengbu Medical University

About this trial

This is a single-center, open-label, non-randomized, dose escalation study to evaluate the safety, tolerability and efficacy of NGGT002 in adult Phenylketonuria (PKU) subjects. All subjects will receive a single administration of NGGT002 and will be followed for safety and efficacy for 5 years.

Eligibility criteria

Qualifiers

Voluntarily sign informed consent form;

Male and female subjects with diagnosis of PKU caused by confirmed phenylalanine hydroxylase(PAH) mutation according to the "Clinical Practice Guidelines for Phenylketonuria, 2020 Edition";

Age ≥ 18 years;

Blood phenylalanine (Phe) concentration ≥ 600 μmol/L at least once within 2 years prior to screening, with one measurement confirmed within six months of enrollment;

Disqualifiers

Anti-AAV8 neutralizing antibody>1:10

Prior gene therapy

Positive hepatitis B virus surface antigen, hepatitis C virus antibody, anti-human immunodeficiency virus antibody or treponema pallidum-specific antibody

Hepatic function abnormal: alanine aminotransferase (ALT) or aspartate aminotransferase (AST) > 1.5 × ULN; alkaline phosphatase (ALP) > 1.5 × ULN; total bilirubin (TBil) > 1.5 × ULN; international normalized ratio (INR) > 1.3

Trial design

Treatments tested in this trial

  • NGGT002 Injection

Treatment groups

15 Participants
are divided into 5 treatment groups