NGGT006 Gene Therapy for Homozygous Familial Hypercholesterolemia

Trial statusRecruiting
Trial phaseEarly Phase 1
Trial typeInterventional
Biological sexAll
Age12-55
SponsorFirst Affiliated Hospital Xi'an Jiaotong University

About this trial

This is an early phase 1, open-label, single-center, dose-escalation, pilot trial to evaluate the safety and efficacy of an intravenous infusion of NGGT006 in homozygous familial hypercholesterolemia (HoFH) patients with LDLR mutations. NGGT006 is an adeno-associated viral (AAV) vector carrying codon-optimized human LDLR gene, driving the expression of LDLR protein with normal function and promoting the clearance of low-density lipoprotein cholesterol (LDL-C).

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Voluntarily sign informed consent form;

Male or female, 12 ≤ age ≤ 55 years (first patient≥ 18 years), diagnosed as homozygous familial hypercholesterolemia with genetic confirmation of two mutant alleles of the LDL receptor (LDLR) gene;

AAV8 neutralizing antibodies can be negative or reduced to negative levels through methods such as plasma exchange or IgG-degrading enzymes.

Untreated LDL-C ≥10 mmol/L (386mg/ dL) or treated LDL-C ≥7 mmol/L (270mg/ dL) together with cutaneous or tendon xanthoma before age 18 years;

Disqualifiers

Positive for hepatitis B surface antigen, hepatitis C, human immunodeficiency virus (HIV) or syphilis test;

Clinically significant abnormalities in liver function test: alanine aminotransferase (ALT) >3 × upper limit of normal (ULN) and/or aspartate aminotransferase (AST) >3 × ULN;

Baseline blood pressure >160/100 mmHg (1 repeat measurement is allowed);

Uncontrolled myocardial infarction or heart failure, or had surgery plan within 1 year;

Trial design

Design model

Sequential

Treatments tested in this trial

  • NGGT006

    Genetic

    Single intravenous infusion of NGGT006 at dose 1 (7.5e12vg/kg), dose 2 (1.5e13vg/kg) , dose 3 (3e13vg/kg) and dose 4 (4e13vg/kg).

Treatment groups

21 Participants
are divided into 1 treatment group
Group A: NGGT006Experimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Incidence of treatment-related adverse events (AE) and serious adverse events (SAE)

Incidence of AE and SAE, as assessed by physical examinations, clinical laboratory parameters and adverse event reporting

Time frame
52 weeks
2

Absolute change and percent change in LDL-C

Change in LDL-C concentration from baseline to week 52

Time frame
52 weeks

Secondary outcomes

1

Absolute change and percent change in apoB

Change in lipid concentrations from baseline to week 52

Time frame
52 weeks
2

Absolute change and percent change in TC

Change in lipid concentrations from baseline to week 52

Time frame
52 weeks
3

Absolute change and percent change in HDL-C

Change in lipid concentrations from baseline to week 52

Time frame
52 weeks
4

Absolute change and percent change in TG

Change in lipid concentrations from baseline to week 52

Time frame
52 weeks

Other outcomes

Sponsors and contacts

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