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Losmapimod

Phase 2

Facioscapulohumeral Muscular Dystrophy (FSHD) | Small molecule | Neurology |Fulcrum Therapeutics, Inc.|Last Updated: Jul 10, 2024

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
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment80
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04003974Efficacy and Safety of Losmapimod in Subjects With Facioscapulohumeral Muscular Dystrophy (FSHD)PHASE2 COMPLETED 80Aug 9, 2019Jan 28, 2021Jul 10, 202417 United States, Canada +2
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Study Endpoints
Primary Endpoints
Change From Baseline in Double Homeobox 4 (DUX4) Activity in Affected Skeletal Muscle
Baseline and Week 16 to Week 36

Skeletal muscle biopsies were collected at Baseline and post-Baseline. DUX4 activity in skeletal muscle biopsies was assessed by measuring expression levels of a panel of 6 genes known to be regulated by DUX4. Expression levels of genes were measured using a validated quantitative RT-PCR assay and expressed as Ct (PCR cycles). Raw Ct for each of the 6 genes was normalized to the specified reference genes to generate a normalized Ct. The DUX4 activity is the average of the normalized Cts of each of the identified 6 genes, where the Ct for each of the 6 genes is first normalized to reference genes before the average is generated. Change in Baseline is calculated as \[average delta Ct across the 6 genes post-baseline\] minus \[average delta Ct across the 6 genes at baseline\].

Secondary Endpoints
Number of Participants With Type of Adverse Events (AEs) to Losmapimod
Up to Week 48
Number of Participants With Severity of AEs to Losmapimod
Up to Week 48
Number of Participants With Relationship of AEs to Losmapimod
Up to Week 48
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
TreatmentEXPERIMENTALFSHD1 patients with genetic confirmation will receive Losmapimod 15 mg twice daily given as two 7.5 mg tablets per dose by mouth; for a total of 4 pills or 30 mg daily for 48 weeks.
PlaceboPLACEBO_COMPARATORFSHD1 patients with genetic confirmation will receive a Placebo twice daily given as two 7.5 mg tablets per dose by mouth; for a total of 4 pills or 30 mg daily for 48 weeks.
Interventions
NameTypeDescription
Losmapimod oral tabletDRUGLosmapimod will be administered with food when possible.
Placebo oral tabletDRUGPlacebo will be administered with food when possible
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Eligibility Criteria
Age Range18 Years — 65 Years
SexALL
Healthy VolunteersNo
Study Sites17

Inclusion Criteria: * The patient must have consented to participate and must have provided signed, dated and witnessed IRB-approved informed consent form that conforms to federal and institutional guidelines. * Male or female subjects * Confirmed diagnosis of FSHD1 with 1 to 9 repeats via assessme...

Countries:United StatesCanadaFranceSpain
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