Safety and Efficacy Study of rAAV2-ND4 Treatment of Leber Hereditary Optic Neuropathy (LHON)

Sponsor
Bin Li (Other)
Overall Status
Completed
CT.gov ID
NCT01267422
Collaborator
Huazhong University of Science and Technology (Other)
9
1
1
55
0.2

Study Details

Study Description

Brief Summary

This study is meant to assess the safety and efficacy of rAAV2-ND4 treatment of Leber hereditary optic neuropathy with 11778 LHON mutation.

Condition or Disease Intervention/Treatment Phase
N/A

Detailed Description

Leber's Hereditary Optic Neuropathy (LHON) is a maternally inherited ocular disorder associated with a mutation in mtDNA . The common manifestation is visual loss which caused by the respiratory chain enzymes complex dysfunction resulting in increased oxidative stress enzymes production.

Material and Method Seven patients with 11778 LHON mutation were randomly treated with a Single IVT Injection of recombinant Adeno-Associated Virus-NADH dehydrogenase, subunit 4 (complex I)(rAAV2-ND4)(0.05ml).The dose was 5 × 109 vg/0.05 mL for patients younger than 12 years old, and 1 × 1010 vg/0.05 mL for patients older than 12 years old. The visual acuity, visual evoked potential (VEP),optical coherence tomography( OCT), computerized visual field, electroretinograms(ERG), retinal nerve fiber layer(RNFL)and Liver and kidney function in plasma were compared before and after treatment at 1,3,and 6, months interval.

Study Design

Study Type:
Interventional
Actual Enrollment :
9 participants
Allocation:
N/A
Intervention Model:
Single Group Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
Safety and Efficacy Study of a Single Intravitreal Injection of rAAV2-ND4 Treatment of Leber Hereditary Optic Neuropathy
Study Start Date :
Apr 1, 2011
Actual Primary Completion Date :
Nov 1, 2015
Actual Study Completion Date :
Nov 1, 2015

Arms and Interventions

Arm Intervention/Treatment
Experimental: rAAV2-ND4

injection

Drug: rAAV2-ND4
injection
Other Names:
  • rAAV2-ND4 gene therapy
  • Outcome Measures

    Primary Outcome Measures

    1. The Best Corrected Visual Acuity(BCVA) [Up to 3 years]

    2. Results of CD3/CD4/CD8 Test [up to 6 months]

      The mean percentage of CD3+/CD4+/CD8+ test before and after treatment

    Secondary Outcome Measures

    1. Intraocular Pressure; [Up to 3 years]

    2. Neutralizing Antibody Assay [up to 3 years]

      The mean of Neutralizing antibody assay of 8 patients before and after treatment

    3. Average RNFL Thickness Througth Optical Coherence Tomography(OCT) Test [Up to 3 years]

      Average RNFL thickness of 8 patients througth Optical coherence tomography(OCT) test before and after treatment

    4. Computerized Visual Field(MD: Mean Deviation, the Value Close to 0 Regarded Normal) [up to 3 years]

      MD: mean deviation, the value Close to 0 regarded normal.VFI/MD:The bigger one was more close to the normal value.

    5. Computerized Visual Field(VFI: Visual Field Index ,the Value Close to 100% Regarded Normal) [up to 3 years]

      VFI: visual field index ,the value Close to 100% regarded normal. VFI/MD:The bigger one was more close to the normal value.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    8 Years to 60 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    1. comply with Leber hereditary optic neuropathy diagnostic criteria.

    2. in patients with informed consent, voluntary participation.

    3. signed informed consent.

    4. 8 ≤ Age ≤ 60 years old, good health, the patient can tolerate local anesthesia surgery.

    5. to comply with doctor's instructions, can in the time of referral.

    Exclusion Criteria:
    1. Cardiopulmonary and renal function in severe weakness, cancer, a variety of bleeding disorders, acute sensing disease, high fever, high fever disease, women during pregnancy, heart disease, such as post-operative recovery period.

    2. Are participating in other clinical studies of patients.

    3. Patients with mental disorders.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Department of Ophthalmology ,Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan Hubei China 430030

    Sponsors and Collaborators

    • Bin Li
    • Huazhong University of Science and Technology

    Investigators

    • Study Chair: bin Li, PhD,MD, Deputy Director of Ophthalmology

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    Responsible Party:
    Bin Li, Safety and Efficacy Study of rAAV2-ND4 Treatment of LHON, Huazhong University of Science and Technology
    ClinicalTrials.gov Identifier:
    NCT01267422
    Other Study ID Numbers:
    • RAVCT-2
    First Posted:
    Dec 28, 2010
    Last Update Posted:
    Jan 31, 2018
    Last Verified:
    Jan 1, 2018
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Keywords provided by Bin Li, Safety and Efficacy Study of rAAV2-ND4 Treatment of LHON, Huazhong University of Science and Technology
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details Patients diagnosed with LHON (with a verified point mutation at the 11778 nucleotide site)
    Pre-assignment Detail All patients were administered rAAV2-ND4 by intravitreal injection to one eye and then followed for 36 months.
    Arm/Group Title Participants Receiving Treatment in Left Eye Participants Receiving Treatment in Right Eye
    Arm/Group Description 5 participants receiving treatment in left eye 4 participants receiving treatment in right eye
    Period Title: Intravitreal rAAV2-ND4 Injection
    STARTED 5 4
    COMPLETED 5 4
    NOT COMPLETED 0 0
    Period Title: Intravitreal rAAV2-ND4 Injection
    STARTED 5 4
    COMPLETED 5 4
    NOT COMPLETED 0 0

    Baseline Characteristics

    Arm/Group Title All Study Participants
    Arm/Group Description Age,Gender,Ethnicity,Race,Region of Enrollment
    Overall Participants 9
    Age (years) [Median (Inter-Quartile Range) ]
    Median (Inter-Quartile Range) [years]
    15
    Sex: Female, Male (Count of Participants)
    Female
    2
    22.2%
    Male
    7
    77.8%
    Ethnicity (NIH/OMB) (Count of Participants)
    Hispanic or Latino
    0
    0%
    Not Hispanic or Latino
    9
    100%
    Unknown or Not Reported
    0
    0%
    Race (NIH/OMB) (Count of Participants)
    American Indian or Alaska Native
    0
    0%
    Asian
    9
    100%
    Native Hawaiian or Other Pacific Islander
    0
    0%
    Black or African American
    0
    0%
    White
    0
    0%
    More than one race
    0
    0%
    Unknown or Not Reported
    0
    0%
    Region of Enrollment (participants) [Number]
    China
    9
    100%

    Outcome Measures

    1. Primary Outcome
    Title The Best Corrected Visual Acuity(BCVA)
    Description
    Time Frame Up to 3 years

    Outcome Measure Data

    Analysis Population Description
    The data are expressed as mean±standard error. Comparisons before and after treatment of the BCVA were analyzed using the paired t-test.A probability (P) value of less than 0.05 was considered statistically significant.Lower logMAR represents a better outcome.
    Arm/Group Title BCVA of Un-treated Eyes BCVA of Treated Eyes
    Arm/Group Description BCVA of un-treated eyes in 9 patients BCVA of trearted eyes in 9 patients
    Measure Participants 9 9
    Measure logMAR 9 9
    before treament
    1.40
    (0.55)
    1.69
    (0.43)
    1 months after treament
    1.36
    (0.58)
    1.58
    (0.44)
    3 months after treament
    1.31
    (0.58)
    1.38
    (0.46)
    6 months after treament
    1.20
    (0.68)
    1.23
    (0.60)
    9 months after treament
    1.23
    (0.62)
    1.27
    (0.58)
    2. Primary Outcome
    Title Results of CD3/CD4/CD8 Test
    Description The mean percentage of CD3+/CD4+/CD8+ test before and after treatment
    Time Frame up to 6 months

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title The Mean Percentage of CD3+/CD4+/CD8+ Before Treatment The Mean Percentage of CD3+/CD4+/CD8+ After Treatment
    Arm/Group Description The mean percentage of CD3+ before treatment;The mean percentage of CD4+ before treatment;The mean percentage of CD8+ before treatment The mean percentage of CD3+ after treatment;The mean percentage of CD4+ after treatment;The mean percentage of CD8+ after treatment
    Measure Participants 9 9
    Values of CD3+
    51
    53
    Values of CD4+
    26
    20
    Values of CD8+
    20
    13
    3. Secondary Outcome
    Title Intraocular Pressure;
    Description
    Time Frame Up to 3 years

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title IOP Before Treatment IOP After Treatment
    Arm/Group Description Ophthalmologic examinations includes IOP of 9 paticipants before treatment Ophthalmologic examinations includes IOP of 9 participants after treatment
    Measure Participants 9 9
    Mean (Full Range) [mmHg]
    14
    16
    4. Secondary Outcome
    Title Neutralizing Antibody Assay
    Description The mean of Neutralizing antibody assay of 8 patients before and after treatment
    Time Frame up to 3 years

    Outcome Measure Data

    Analysis Population Description
    Neutralizing antibody assay of 8 patients except Patient 1 because he once accepted the other eye's treatment
    Arm/Group Title The Mean of Neutralizing Antibody Assay Before Treatment The Mean of Neutralizing Antibody Assay After Treatment
    Arm/Group Description The mean of Neutralizing antibody assay before treatment of 8 patients The mean of Neutralizing antibody assay after treatment of 8 patients
    Measure Participants 8 8
    Mean (Standard Deviation) [titer]
    0.9221
    (0.142437)
    0.8723
    (0.201054)
    5. Secondary Outcome
    Title Average RNFL Thickness Througth Optical Coherence Tomography(OCT) Test
    Description Average RNFL thickness of 8 patients througth Optical coherence tomography(OCT) test before and after treatment
    Time Frame Up to 3 years

    Outcome Measure Data

    Analysis Population Description
    RNFL thickness of 8 patients except Patient 1 because he once accepted the other eye's treatment
    Arm/Group Title Average RNFL Thickness Before Treatment Average RNFL Thickness After Treatment
    Arm/Group Description Average RNFL thickness before treatment of injected eyes;Average RNFL thickness before treatment of uninjected eyes Average RNFL thickness after treatment of injected eyes;Average RNFL thickness after treatment of uninjected eyes
    Measure Participants 8 8
    injected eye
    47.3125
    (7.87259)
    46.7813
    (7.5397)
    uninjected eye
    50.1875
    (13.402)
    47.9688
    (9.7031)
    6. Secondary Outcome
    Title Computerized Visual Field(MD: Mean Deviation, the Value Close to 0 Regarded Normal)
    Description MD: mean deviation, the value Close to 0 regarded normal.VFI/MD:The bigger one was more close to the normal value.
    Time Frame up to 3 years

    Outcome Measure Data

    Analysis Population Description
    Patient 2 refused the vision field test,there are MD outcome measure of 8 patients.
    Arm/Group Title Mean MD Before Treatment Mean MD After Treatment
    Arm/Group Description Mean MD before treatment of injected eyes;Mean MD before treatment of uninjected eyes Mean MD after treatment of injected eyes;Mean MD after treatment of uninjected eyes
    Measure Participants 8 8
    injected eye
    -29.377
    (5.16805)
    -23.813
    (7.27537)
    uninjected eye
    -28.701
    (3.65595)
    -23.427
    (8.15747)
    7. Secondary Outcome
    Title Computerized Visual Field(VFI: Visual Field Index ,the Value Close to 100% Regarded Normal)
    Description VFI: visual field index ,the value Close to 100% regarded normal. VFI/MD:The bigger one was more close to the normal value.
    Time Frame up to 3 years

    Outcome Measure Data

    Analysis Population Description
    Patient 2 refused the vision field test,there are VFI outcome measure of 8 patients.
    Arm/Group Title Mean VFI Before Treatment Mean VFI After Treatment
    Arm/Group Description Mean VFI before treatment of injected eyes;Mean VFI before treatment of uninjected eyes Mean VFI after treatment of injected eyes;Mean VFI after treatment of uninjected eyes
    Measure Participants 8 8
    injected eye
    11
    (0.14513)
    28
    (0.23305)
    uninjected eye
    10.5
    (0.28714)
    25
    (0.24804)

    Adverse Events

    Time Frame
    Adverse Event Reporting Description
    Arm/Group Title Short-term Affects Long-term Affects
    Arm/Group Description Lens may be injured during intravitreal injection, and cataract is probably complicated. Retinal detachment or endophthalmitis may be complicated due to retina injury.IOP raised.Endophthalmitis after treament. Hyper-susceptibility or immune response during surgery or after surgery. Lens may be injured after intravitreal injection, and cataract is probably complicated. Retinal detachment or endophthalmitis may be complicated due to retina injury.IOP raised.Blood and urine routine is affected.Liver and kidney function is affected.Immune response after surgery.
    All Cause Mortality
    Short-term Affects Long-term Affects
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total / (NaN) / (NaN)
    Serious Adverse Events
    Short-term Affects Long-term Affects
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/9 (0%) 0/9 (0%)
    Other (Not Including Serious) Adverse Events
    Short-term Affects Long-term Affects
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/9 (0%) 0/9 (0%)

    Limitations/Caveats

    Early termination leading to small numbers of subjects analyzed.

    More Information

    Certain Agreements

    Principal Investigators are NOT employed by the organization sponsoring the study.

    There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

    Results Point of Contact

    Name/Title Bin Li
    Organization Department of Ophthalmology, Tongji Hospital Tongji Medical College, Huazhong University of Science and Technology
    Phone +86-13638673626
    Email libin-12@163.com
    Responsible Party:
    Bin Li, Safety and Efficacy Study of rAAV2-ND4 Treatment of LHON, Huazhong University of Science and Technology
    ClinicalTrials.gov Identifier:
    NCT01267422
    Other Study ID Numbers:
    • RAVCT-2
    First Posted:
    Dec 28, 2010
    Last Update Posted:
    Jan 31, 2018
    Last Verified:
    Jan 1, 2018