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A Study to Evaluate the Safety, Tolerability, Immunogenicity, and Biological Activity of ATYR1940 in Patients with Limb Girdle and Facioscapulohumeral Muscular Dystrophies

An Open-Label, Intrapatient Dose Escalation Study to Evaluate the Safety, Tolerability, Immunogenicity, and Biological Activity of ATYR1940 in Patients with Limb Girdle and Facioscapulohumeral Muscular Dystrophies

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2015-001910-88-DK
Enrollment
16
Registered
2015-06-30
Start date
2015-12-17
Completion date
Unknown
Last updated
2017-10-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Limb Girdle Muscular Dystrophy and Facioscapulohumeral Muscular Dystrophy MedDRA version: 19.0 Level: PT Classification code 10064087 Term: Facioscapulohumeral muscular dystrophy System Organ Class: 10010331 - Congenital, familial and genetic disorders

Interventions

Product Name: ATYR1940 Product Code: ATYR1940 Pharmaceutical Form: Concentrate for solution for infusion INN or Proposed INN: Not available yet Current Sponsor code: ATYR1940 Concentration unit: mg/ml

Sponsors

aTyr Pharma, Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Male or female aged 18 to 75 years, inclusive. 2. Provided written informed consent. 3. In the Investigator’s opinion, is willing and able to complete all study procedures and comply with the study visit schedule. 4. Established genetically confirmed diagnosis of LGMD2B or FSHD. 5. Either the presence of a STIR positive muscle with limited fatty infiltration, as determined by the Fischer scoring system, on MRI (FHSD) or an elevated muscle marker (LGMD2B) Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 12 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 4

Exclusion criteria

Exclusion criteria: 1. Currently receiving treatment with an immunomodulatory agent or history of such treatment, including targeted biological therapies (e.g., etanercept, omalizumab) or corticosteroids within the 3 months before baseline; or high-dose non-steroidal anti-inflammatory agents within 2 weeks before baseline. 2. Currently receiving curcumin or albuterol or requires such treatment during study participation; use of a product that putatively enhances muscle growth or activity on a chronic basis within 30 days before baseline; or statin treatment initiation or significant adjustment to statin regimen within 3 months before baseline. 3. Use of an investigational product or device (other than a mobility assistance device) within 30 days before baseline. 4. History of severe restrictive or obstructive lung disease (including interstitial lung disease, pulmonary fibrosis, or asthma), or evidence of active lung disease on screening chest radiograph. 5. History of anti-synthetase syndrome, prior Jo-1 Ab-positivity, or Jo 1 Ab level =0.6 U/mL on screening. 6. Acute or clinically relevant Epstein-Barr virus (EBV) or cytomegalovirus (CMV) infection or re-activation. 7. Chronic infection, such as hepatitis B virus (HBV), hepatitis C virus (HCV), or human immunodeficiency virus (HIV) or a history of tuberculosis. 8. Vaccination within 8 weeks before baseline or vaccination is planned during study participation. 9. Symptomatic cardiomyopathy or severe cardiac arrhythmia (including bradyarrythmias), that may, in the Investigator’s opinion, limit the patient’s ability to complete the study protocol. 10. Gamma-glutamyl transferase (GGT) or serum creatinine levels >2× the upper limit of normal. 11. Muscle biopsy within 30 days before baseline.

Design outcomes

Primary

MeasureTime frame
Secondary Objective: To explore the biological and pharmacodynamic (PD) activity of ATYR1940 in patients with LGMD2B and FSHD, based on changes in: • Serum-based muscle biomarkers. • Inflammatory immune state in peripheral blood. • Muscle disease burden. • Skeletal muscle strength. • Upper and lower extremity muscle function. • Quality of life measures.;Timepoint(s) of evaluation of this end point: Safety and tolerability - AEs & vital signs: throughout the study - Safety laboratory test results: Screening, weeks 1, 2 4, 6, 8, 10, 12, 14, 17 and 25 (follow-up period) - ECG: Screening, weeks 2, 4, 6 and 10 to 14 (follow-up period) - Pulmonary function tests: Screening, week 5, 8, 13 and 17 (follow-up period) - Pulse oximetry: weeks 1 to 13 Immunogenicity: - Level of ADA titers: Screening, weeks 4, 6, 8 and 10 to 25 (follow-up period) - Level of Jo-1 Ab: Screening, weeks 3 to 13, 14, 17 and 25 (follow-up period) - Plasma complement levels: weeks 1, 4, 8, 11 and 14 (follow-up period) - Serum complement and tryptase levels: weeks 1 and 14 (follow-up period);Main Objective: To evaluate the safety, tolerability, and immunogenicity of the weekly and twice weekly intravenous (IV) administration of ATYR1940, at doses of 0.3, 1.0, and 3.0 mg/kg, to patiens with Dysferlinopathy (Limb Girdle Muscular Dystrophy 2B [LGMD2B]) and Facioscapulohumeral Muscular Dystrophy (FSHD).;Primary end point(s): Safety and tolerability • Incidence of treatment-emergent AEs and SAEs overall and by intensity. • Changes from baseline in safety laboratory test results. • Changes from baseline in ECG findings. • Changes from baseline in vital signs measurements. • Changes from baseline in pulmonary evaluations (PFTs and pulse oximetry). Immunogenicity • Incidence and level of ADA titers and Jo-1 Ab. • Exploratory characterization of immune response to ATYR1940.

Secondary

MeasureTime frame
Secondary end point(s): Pharmacodynamics • Changes in muscular-dystrophy-related inflammatory immune state in peripheral blood. • Changes in serum- and/or plasma-based muscle biomarkers. • Changes from baseline in the following clinical parameters: - Lower extremity skeletal muscle MRI. - Muscle strength, based on MMT. - Upper and lower extremity muscle function, based on the Brooke and Vignos scales, respectively. - Physical activity monitoring. - Quality of life based on the INQoL questionnaire.;Timepoint(s) of evaluation of this end point: Pharmacodynamics: - PBMCs: Screening, weeks 1, 9, 13 and 14 (follow-up period) - Serum/plasma biomarkers: weeks 1, 2, 4, 6, 9, 10, 13 and 14 (follow-up period) - Skeletal muscle MRI: Screening, weeks 9, 13 and 14 (follow-up period) - MMT & Upper and lower extremity function: Screening, weeks 7, 10 and 14 (follow-up period) - INQoL: Screening, weeks 7, 14 and 25 (follow-up period) - Physical activity monitor: weeks 1 to 17 (daily)

Countries

Denmark, France, Italy, United States

Contacts

Public ContactClinical Trial Operations

Voisin Consulting

clinicaltrialinformation@voisinconsulting.com

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026