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PrimeC

Phase 2

Amyotrophic Lateral Sclerosis | Small molecule | Neurology |NeuroSense Therapeutics Ltd.|Last Updated: Sep 5, 2025

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 Enrollment69
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05357950A Phase IIb, Multi-Center, Multinational, Double-Blind, Placebo-Controlled Study, With an Open Label Extension, to Evaluate Safety, Tolerability and Efficacy of PrimeC in Subjects With ALSPHASE2 COMPLETED 69May 31, 2022Nov 4, 2024Sep 5, 20254 Canada, Israel +1
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Study Endpoints
Primary Endpoints
Incidence and severity of treatment-emergent adverse events (TEAEs)
6 months

Treatment emergent adverse event is any medical event associated with the drug

Number of subjects who discontinued treatment prematurely
6 months

Number of subjects whose treatment is stopped prematurely for any reason

Number of patients who discontinued treatment prematurely due to adverse events
6 months

Number of patients whose treatment is stopped prematurely specifically due to adverse events

Number of patients with clinically significant abnormal laboratory values
6 months
The mean difference between PrimeC and Placebo in serum concentration of NDE TDP-43 at month 6
6 months
The mean difference between PrimeC and placebo in serum concentration of NDE PgJ2 at month 6
6 months
Secondary Endpoints
Change from baseline to 6 months in ALS functional rating scale - revised (ALSFRS-R)
6 months
Change from baseline to 6 months in slow vital capacity (SVC)
6 months
Change from baseline to 6 months in quality of life ALSSQOL-SF
6 months
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
PrimeCACTIVE_COMPARATOR2 tablets of PrimeC administered twice daily (4 tablets a day), at a daily dose of 1496 mg
PlaceboPLACEBO_COMPARATOR2 tablets of Placebo administered twice daily (4 tablets a day). Placebo tablets are matched in size, color and taste.
Interventions
NameTypeDescription
PrimeCDRUGCiprofloxacin and celecoxib combination extended release formulation
PlaceboDRUGPlacebo matches active drug in size, color and taste
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Eligibility Criteria
Age Range18 Years — 75 Years
SexALL
Healthy VolunteersNo
Study Sites4

Inclusion Criteria: 1. Able to comprehend and willing to sign an informed consent form (ICF) 2. Males or females between the ages of 18 and 75 years of age, inclusive 3. Diagnosis of familial or sporadic ALS (defined as meeting the laboratory-supported probable, probable, or definite criteria for a...

Countries:CanadaIsraelItaly
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