Lentiviral FVIII Gene Therapy

Lentiviral FVIII Gene Therapy for Hemophilia A

This study is a Phase I trial using an advanced lentiviral vector to deliver a functional gene for human clotting factor VIII into patients with hemophilia A, to evaluate the safety and efficacy of infusion of lentiviral gene modified autologous stem cells in patients.

Study Overview

• Status: Not yet recruiting
• Conditions: Hemophilia A
• Intervention / Treatment: Biological: YUVA-GT-F801

Detailed Description

Important Regulatory Notice:

This trial record is only for global academic information registration on ClinicalTrials.gov. Neither the sponsor Beijing Meikang Jimian Biotechnology Co., Ltd. nor collaborator Shenzhen Geno-Immune Medical Institute has obtained NMPA clinical trial approval or clinical technology filing permission to carry out interventional cell therapy trials in mainland China.

ClinicalTrials.gov registration alone does not represent legal approval by Chinese health and drug regulatory authorities.

Hemophilia A is a genetic bleeding disorder caused by the lack of ability to produce blood-clotting factor VIII (FVIII). Individuals with hemophilia A suffer repeated bleeding episodes, which can cause chronic joint disease and sometimes even death due to the inability for blood to clot efficiently. The current treatment is intravenous infusion of clotting factor concentrates, either prophylactically or in response to bleeding. The procedure is life time long and expensive while still cannot achieve a cure.Gene therapy is a novel technology that has been successfully demonstrated in a number of clinical studies for diseases such as cancer and genetic diseases. In this study, an advanced lentiviral vector system NHP/TYF will be used to deliver a functional FVIII gene to overcome human clotting FVIII gene defect in patients with hemophilia A. This study is a Phase I trial evaluating the safety and efficacy for infusion of gene modified autologous stem cells in patients with hemophilia A.

• Study Type: Interventional
• Enrollment (Estimated): 10
• Phase: Phase 1

Contacts and Locations

• Study Contact: Name: Lung-Ji Chang, PhD; Phone Number: +86 0755-86573763; Email: c@szgimi.org

Study Locations

• China
  • Guangdong
    • Shenzhen, Guangdong, China, 518000
      • Shenzhen Geno-immune Medical Institute
      • Contact: Lung-Ji Chang, PhD; Phone Number: +86 0755-86573763; Email: c@szgimi.org

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 2 years to 65 years (Child, Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Able to provide informed consent and comply with requirements of the study.
2. Males ≥2 years with confirmed diagnosis of hemophilia A (endogenous factor VIII ≤2 IU/dL or ≤2% of normal).
3. A minimum average of 4 bleeding events per year requiring episodic treatment of factor VIII infusions or prophylactic factor VIII infusions.
4. No measurable factor VIII inhibitor as assessed by the central laboratory and have no prior history of inhibitors to factor VIII protein.
5. Agree to use reliable barrier contraception until 3 consecutive samples are negative for vector sequences.

Exclusion Criteria:

1. Significant liver dysfunction as defined by abnormal alanine transaminase, bilirubin and alkaline phosphatase.
2. History of inhibitor against factor VIII.
3. Evidence of active hepatitis B or C and currently on antiviral therapy.
4. Have serological evidence of HIV-1 or HIV-2 with CD4 counts ≤200/mm3 (subjects who are HIV+ and stable with CD4 count >200/mm3 and undetectable viral load are eligible to enroll).
5. Any evidence of active infection or any immunosuppressive disorder.
6. Participated in a gene transfer trial within the last 6 months or in a clinical trial with an investigational drug within the last 12 weeks.
7. Unable or unwilling to comply with study assessments.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: YUVA-GT-F801; Gene transfer to treat Hemophilia A	Biological: YUVA-GT-F801; Lentiviral factor VIII gene modified autologous hematopoeitic stem cells and mesenchymal stem cells

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of participants experiencing drug-related adverse events	As assessed by physical exam, vital signs, standard clinical labs, and Bethesda assay for FVIII inhibitor	a year

Secondary Outcome Measures

Outcome Measure	Time Frame
Changes from baseline in circulating FVIII activity (IU/dL or % normal)	a year

Collaborators and Investigators

• Sponsor: Shenzhen Geno-Immune Medical Institute
• Investigators: Principal Investigator: Lung-Ji Chang, Shenzhen Geno-immune Medical Institute

Study record dates

Study Major Dates

• Study Start (Estimated): June 1, 2027
• Primary Completion (Estimated): May 31, 2028
• Study Completion (Estimated): December 1, 2028

Study Registration Dates

• First Submitted: July 3, 2017
• First Submitted That Met QC Criteria: July 11, 2017
• First Posted (Actual): July 13, 2017

Study Record Updates

• Last Update Posted (Actual): September 1, 2026
• Last Update Submitted That Met QC Criteria: August 27, 2026
• Last Verified: August 1, 2026

More Information

Terms related to this study

• Keywords: lentiviral vector; Gene therapy; Hemophilia A; factor VIII
• Additional Relevant MeSH Terms: Genetic Diseases, Inborn; Hematologic Diseases; Blood Coagulation Disorders; Hemorrhagic Disorders; Blood Coagulation Disorders, Inherited; Coagulation Protein Disorders; Congenital, Hereditary, and Neonatal Diseases and Abnormalities; Hemic and Lymphatic Diseases; Hemophilia A
• Other Study ID Numbers: GIMI-IRB-17007

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No