A Study to Evaluate the Safety of AB-1003 (Previously LION-101) in Subjects With Genetic Confirmation of LGMD2I/R9 (Part1)

NCT ID: NCT05230459

Last Updated: 2025-12-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-05-15

Study Completion Date

2032-12-31

Brief Summary

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The purpose of this study is to evaluate the safety and tolerability of a single intravenous infusion of AB-1003 in adults diagnosed with limb girdle muscular dystrophy type 2I/R9 (LGMD2I/R9). Participants will be treated in sequential, dose-level cohorts. (Part 1)

Detailed Description

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Conditions

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Fukutin Related Protein Limb Girdle Muscular Dystrophy Limb-Girdle Muscular Dystrophy Type 2 LGMD2I Muscular Dystrophy LGMD2 LGMD FKRP FKRP Mutation

Keywords

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gene therapy LGMD2I LGMD2I/R9 gene augmentation therapy FKRP fukutin related protein FKRP mutation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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AB-1003 Cohort 1

Group Type EXPERIMENTAL

AB-1003 dose level 1

Intervention Type GENETIC

Single intravenous infusion of AB-1003 gene therapy at dose level 1

AB-1003 Cohort 2

Group Type EXPERIMENTAL

AB-1003 dose level 2

Intervention Type GENETIC

Single intravenous infusion of AB-1003 gene therapy at dose level 2

Placebo (Cohorts 1 and 2)

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type OTHER

Single intravenous infusion of Placebo

Interventions

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AB-1003 dose level 1

Single intravenous infusion of AB-1003 gene therapy at dose level 1

Intervention Type GENETIC

AB-1003 dose level 2

Single intravenous infusion of AB-1003 gene therapy at dose level 2

Intervention Type GENETIC

Placebo

Single intravenous infusion of Placebo

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

1. Male and female subjects aged 18 and 65 years with clinical diagnosis of LGMD2I/R9 and confirmation of FKRP gene mutation.
2. Ability to ascend 4 stairs between 2.5 and 10 seconds.
3. Ability to walk/run 10 meters in \<30 seconds.
4. Able to understand and comply with all study procedures.
5. Sexually active females of childbearing potential and female and male partners of male subjects receiving study intervention must use a barrier method of contraception for the first 6 months after dosing.

Exclusion Criteria

1. Significant cardiomyopathy as defined by echocardiogram (left ventricular ejection fraction \<40%), evidence of conduction defect (increased PR and RR intervals, left bundle branch block and QTcF \>480m/sec), NYHA Class 3 or 4 heart failure, or MRI gadolinium enhancement evidence of clinically important myocardial fibrosis.
2. Contraindication to MRI or hypersensitivity to contrast dyes, shellfish or iodine.
3. Implanted spinal rods, cardiac pacemaker or other implantation that would distort cardiac MRI images.
4. History of active, ongoing chronic liver disease (e.g. hepatitis, HIV-related liver disease, hemochromatosis, steatosis, etc.) or abnormal liver function tests (abnormal GGT and/or abnormal total/direct bilirubin \>upper limit of normal \[ULN\] and/or elevated AST and ALT \>2 ULN).
5. Abnormal renal function (GFR \<60 ml/min, using the Modification of Diet in Renal Disease equation).
6. Any life-threatening disease, including malignant neoplasms and medical history or malignant neoplasms within the past 5 years prior to screening (except basal and squamous cell skin cancer).
7. In the opinion of the investigator, a pre-existing medical condition that predisposes the subject to risks that outweighs the potential benefits.
8. Requirement for daytime ventilatory support.
9. Change in glucocorticosteroid treatment within 3 months prior to screening visit.
10. Exposure to another investigational drug within 3 months prior to study treatment or any previous treatment with gene therapy.
11. Ongoing participation in any other therapeutic clinical trial.
12. Neutralizing antibody titer to AAV9 \>1:5.
13. Female subjects who are pregnant, plan to become pregnant in the next 12 months, or breastfeeding.
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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AskBio Inc

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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University of California - Irvine

Irvine, California, United States

Site Status RECRUITING

University of Iowa

Iowa City, Iowa, United States

Site Status RECRUITING

University of Kansas Medical Center

Kansas City, Kansas, United States

Site Status RECRUITING

Kennedy Krieger Institute

Baltimore, Maryland, United States

Site Status RECRUITING

VCU

Richmond, Virginia, United States

Site Status RECRUITING

University of Washington Medical Center

Seattle, Washington, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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AskFirst Patient Engagement

Role: CONTACT

Phone: 919-561-6210

Email: [email protected]

myTomorrows (see link below in reference section)

Role: CONTACT

Facility Contacts

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UCI Alpha Clinic

Role: primary

Ciara Gibbs

Role: primary

Andrea Klempnauer

Role: primary

Mary Yep

Role: primary

Anarosa Rezeq

Role: primary

Piya Modalavalasa

Role: primary

Related Links

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https://mytomorro.ws/lion-101-gov

Link to webpage for study and pre-qualification information

Other Identifiers

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LION-CS101

Identifier Type: -

Identifier Source: org_study_id