The purpose of this study is to assess the safety and biological activity of ATYR1940 in participants with LGMD2B and FSHD.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
18
University of California, Irvine, ALS and Neuromuscular Center
Irvine, California, United States
Kennedy Krieger Institute; The Johns Hopkins University School of Medicine
Baltimore, Maryland, United States
OSU Wexner Medical Center
Columbus, Ohio, United States
Rigshospitalet, University of Copenhagen
Copenhagen, Denmark
Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)
TEAEs were defined as adverse events (AEs) with an onset following administration of the first dose of study drug. An AE was defined as any untoward medical occurrence in a participant administered study drug and that does not necessarily have a causal relationship with the study drug. Worsening of a pre-existing medical condition should have been considered an AE if there was either an increase in severity, frequency, or duration of the condition or an association with significantly worse outcomes. An SAE was defined as any AE that, in the view of either the Investigator or Sponsor, resulted in any of the following outcomes as fatal, life-threatening, required in-participant hospitalization or prolongation of existing hospitalization, in persistent or significant disability/incapacity, a congenital anomaly/birth defect, or an important medical event. A summary of all SAEs and Other AEs (nonserious) regardless of causality is located in 'Reported Adverse Events' Section.
Time frame: Up to End of Study (up to Week 25)
Number of Participants With a Clinically Significant Electrocardiogram (ECG) Abnormality Leading to a TEAE
ECG parameters that were evaluated included heart rate, PR, and QR and QT intervals. A clinically significant ECG abnormality was based upon the Investigator's discretion. A summary of all Serious Adverse Events and Other Adverse Events (nonserious) regardless of causality is located in the 'Reported Adverse Events' Section.
Time frame: Up to End of Study (up to Week 25)
Number of Participants With a Clinically Significant Pulmonary Function Event Resulting in a TEAE
Pulmonary evaluations included pulmonary function tests and pulse oximetry. Clinically significant changes were to be reported as adverse events. A summary of all Serious Adverse Events and Other Adverse Events (nonserious) regardless of causality is located in the 'Reported Adverse Events' Section.
Time frame: Up to End of Study (up to Week 25)
Number of Participants With a Clinical Laboratory Abnormality Leading to an AE
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Centre d'nvestigation Clinique - Centre de Pharmacologie Clinique et d'Evaluations Thérapeutiques (CICCPCET)
Marseille, France
Institut de Myologie, Hôpital Pitié-Salpêtrière
Paris, France
Laboratory parameters included hematology (hematocrit, hemoglobin, red blood cell count, white blood cell count with differential \[neutrophils, lymphocytes, monocytes, eosinophils, basophils\], and platelet count); serum chemistries (blood urea nitrogen, creatinine, total bilirubin, aspartate aminotransferase, alanine aminotransferase, gamma-glutamyl transferase, alkaline phosphatase, total protein, sodium, potassium, bicarbonate, calcium, chloride, magnesium, inorganic phosphate, creatine kinase, lactate dehydrogenase, erythrocyte sedimentation rate, C-reactive protein, troponin, myoglobin, insulin-like growth factor 1, and cholesterol \[(nonfasting\]); urinalysis (color, pH, specific gravity, protein, glucose, ketones, and blood). Clinically significant laboratory abnormalities were based upon Investigator's discretion. A summary of all Serious Adverse Events and Other Adverse Events (nonserious) regardless of causality is located in the 'Reported Adverse Events' Section.
Time frame: Up to End of Study (up to Week 25)
Number of Participants With Vital Sign Abnormality Resulting in a TEAE
The vital sign parameters that were evaluated included heart rate, systolic and diastolic blood pressure, and respiration rate as well as temperature. A summary of all Serious Adverse Events and Other Adverse Events (nonserious) regardless of causality is located in the 'Reported Adverse Events' Section.
Time frame: Up to End of Study (Up to Week 25)
Percent Change From Baseline in Manual Muscle Testing (MMT) Score at Week 14
MMT (muscle strength) was graded on a scale from 0 (no contraction palpable) to 5 (normal strength). Decreased muscle strength was indicated by a decreased score.
Time frame: Baseline, Week 14