A Phase 2b/3 multicenter, randomized, double-blind, placebo-controlled, parallel group study to evaluate the efficacy, safety and tolerability of MN-166 given to ALS participants for 12 months followed by a 6-month open-label extension phase.
This is a Phase 2b/3 multicenter, randomized, double-blind, placebo-controlled, parallel group study to evaluate the efficacy, safety and tolerability of MN-166 followed by an open-label extension phase compared to matching placebo in subjects diagnosed with ALS. The study will consist of a screening phase (up to 30 days) followed by a double-blind phase (12 months). Following the screening phase, subjects who continue to meet entry criteria will be randomly assigned to one of two treatment groups: MN-166 or matching placebo in a 1:1 ratio. Upon completion of the double-blind phase, subjects will be given the option to continue to the Open-label Extension Phase for a period of six months.
Major Inclusion Criteria:
- Male or female subjects age 18 - 80 years, inclusive;
- Diagnosis of familial or sporadic ALS as defined by the El Escorial-Revised (2000)
research diagnostic criteria for ALS [clinically definite, clinically probable,
probable-laboratory-supported];
- ALS onset of ≤18 months from first clinical signs of weakness prior to screening;
- If currently using riluzole, subject must be on a stable dose for at least 30 days
prior to initiation of study drug;
- If currently using edaravone, subject should have completed at least 14 days of their
initial treatment cycle prior to initiation of study drug;
- Last documented pulmonary function test result (i.e., slow vital capacity or forced
vital capacity) must be greater than or equal to 70% predicted;
- Able to swallow study medication capsules;
- No known allergies to the study drug or its excipients;
- Received pneumococcal vaccine within 6 years prior to starting clinical trial.
Major Exclusion Criteria:
- Confirmed hepatic insufficiency or abnormal liver function (AST and/or ALT >3 times
upper limit of normal);
- Currently diagnosed with a clinically significant psychiatric disorder or dementia
that would preclude evaluation of symptoms;
- Currently use or treated with parenteral (intramuscular or intravenous) high dose (>25
mg/week) Vitamin B12 within 30 days prior to study drug administration;
- Poor peripheral venous access that will limit the ability to draw blood as judged by
the Investigator;
- Currently participating, or has participated in a study with an investigational or
marketed compound or device within 30 days or 5 half-lives, whichever is shorter,
prior to signing the informed consent;
- Use of tracheostomy or >22/24-hour ventilatory support.