CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 69 enrolled
Drug / intervention
PrimeC +1 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05357950
NCT05357950Phase 2Completed

A Phase IIb, Randomized, Multi-Center, Multinational, Prospective, Double-Blind, Placebo-Controlled Study, With an Open Label Extension, to Evaluate Safety, Tolerability and Efficacy of PrimeC in Subjects With ALS

NeuroSense Therapeutics Ltd.·interventional·Posted May 3, 2022·Updated Sep 5, 2025

In Brief

A Phase 2 clinical trial evaluating PrimeC and Placebo for Amyotrophic Lateral Sclerosis and ALS. Completed, enrolled 69 participants across 4 sites in 3 countries.

Detailed Summary

69 subjects with ALS will be enrolled in the study and randomized at a 2:1 ratio to receive the study drug or placebo tablets. Randomization sequences will be in random block sizes and stratified for ENCALS risk category \[high risk ≥ -4.5 vs. low risk \< -4.5\], and for background ALS treatment (riluzole and/or edaravone and/or sodium phenylbutyrate and/or taurursodiol) vs. no background ALS treatment. All subjects will be administered the drug/placebo twice daily (BID), two tablets each time, for 6 months. Subjects will be allowed to receive standard of care (SOC) treatment of approved products (i.e., riluzole and edaravone). Additionally, subjects will be allowed to receive treatment with off-label sodium phenylbutyrate and taurursodiol, which are accepted for ALS treatment. Subjects will be evaluated every 2 months for safety, tolerability (adverse events, safety laboratory, vital signs, ECG, withdrawal rates and reasons) and efficacy (e.g. biomarkers, clinical outcomes (ALSFRS-R and SVC, quality of life and survival). All subjects who complete the 6 months dosing will be switched to the active arm for a 12-month open label extension (OLE).

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesCanada, Israel, Italy
Collaborators--

Timeline

Phase 2CompletedFinished
2023202420252026
First PostedMay 3, 2022
Enrollment StartMay 31, 2022
Primary CompletionNov 2, 2023
Study CompletionNov 4, 2024
TodayJul 2, 2026
Enrollment to primary: 1.4 yearsPosted 4.2 years ago

Interventions

PrimeCdrug

Ciprofloxacin and celecoxib combination extended release formulation

Placebodrug

Placebo matches active drug in size, color and taste