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ATYR1940

Phase 1

Limb-Girdle Muscular Dystrophies | Monoclonal antibody | Neurology |aTyr Pharma, Inc.|Last Updated: Oct 19, 2023

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
CONTROLLEDBiomarker
Total Trials1
Total Enrollment18
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT02579239Evaluate Safety and Biological Activity of ATYR1940 in Participants With Limb Girdle Muscular Dystrophy 2B (LGMD2B) and Facioscapulohumeral Muscular Dystrophy (FSHD)PHASE1 COMPLETED 18Nov 30, 2015Oct 5, 2016Oct 19, 20236 United States, Denmark +1
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Study Endpoints
Primary Endpoints
Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)
Up to End of Study (up to Week 25)

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.

Number of Participants With a Clinically Significant Electrocardiogram (ECG) Abnormality Leading to a TEAE
Up to End of Study (up to Week 25)

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.

Number of Participants With a Clinically Significant Pulmonary Function Event Resulting in a TEAE
Up to End of Study (up to Week 25)

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.

Number of Participants With a Clinical Laboratory Abnormality Leading to an AE
Up to End of Study (up to Week 25)

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.

Number of Participants With Vital Sign Abnormality Resulting in a TEAE
Up to End of Study (Up to Week 25)

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.

Secondary Endpoints
Percent Change From Baseline in Manual Muscle Testing (MMT) Score at Week 14
Baseline, Week 14
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Group A - FSHDEXPERIMENTALParticipants with FSHD will receive single dose of placebo intravenous (IV) infusion followed by ATYR1940 IV infusion at doses of 0.3 up to 1.0 milligrams/kilograms (mg/kg) once weekly for 8 weeks and then twice weekly for 4 weeks using intraparticipant dose escalation for up to 12 weeks.
Group B - LGMD2B and FSHDEXPERIMENTALParticipants with LGMD2B and FSHD will receive single dose of placebo IV infusion followed by ATYR1940 IV infusion at doses of 0.3 up to 1.0 and 3.0 mg/kg once weekly for 8 weeks and then twice weekly for 4 weeks using intraparticipant dose escalation for up to 12 weeks.
Interventions
NameTypeDescription
ATYR1940BIOLOGICALConcentrate for solution for infusion
PlaceboBIOLOGICALConcentrate for solution for infusion
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Eligibility Criteria
Age Range18 Years — 75 Years
SexALL
Healthy VolunteersNo
Study Sites6

Inclusion Criteria: * Provided informed consent. * Investigator's opinion, participant is willing and able to complete all study procedures and comply with the study visit schedule. Participant with LGMD2B: * Established, genetically confirmed diagnosis of LGMD2B. * Either the presence of a short...

Countries:United StatesDenmarkFrance
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