About this trial
The purpose of this 2-part study is to assess the safety and efficacy of CORT113176 (dazucorilant) in patients with Amyotrophic Lateral Sclerosis (ALS).
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Male and female patients ≥18 years of age with sporadic or familial ALS. In Part 1, patients must have a risk of ALS progression characterized by a European Network for the Cure of ALS (ENCALS) risk profile score ≥ -6 and ≤ -3. In Part 2 patients must have a risk of ALS progression characterized by an Treatment Research Initiative to Cure ALS (TRICALS) risk profile score ≥ -7 and ≤ -3.
If taking riluzole, edaravone, and/or sodium phenylbutyrate and taurursodiol, must be on a stable dose prior to Screening. Sodium phenylbutyrate and taurursodiol are not permitted for patients enrolled in Part 2 of the study.
Part 2 only: Patients with a pathogenic mutation in superoxide dismutase 1 gene (SOD1) must not be receiving treatment with tofersen or eligible for treatment with tofersen if available. Patients who have received prior treatment with tofersen and discontinued due to safety and/or efficacy reasons prior to Screening are eligible.
Part 2 only: Use of ultra high-dose methylcobalamin for the treatment of ALS is permitted provided the patient has been on a stable dose for ≥11 weeks prior to the Day 1 visit.
Disqualifiers
History of a clinically significant non-ALS neurologic disorder
Inability to swallow capsules.
Blood platelet count <150,000/mm^3.
Renal impairment indicated by Estimated Glomerular Filtration Rate (eGFR) ≤30 mL/min/1.73 m². Part 2 only: Patients with a recent history of acute kidney injury should have returned to their baseline renal function (i.e, eGFR prior to acute kidney injury) prior to enrollment.
Trial design
Parallel
Treatments tested in this trial
Dazucorilant 300 mg
Drug300 mg of dazucorilant will be administered once daily in 4 capsules of 75 mg dazucorilant/capsule.
Dazucorilant 150 mg
DrugDazucorilant and placebo will be administered once daily in 4 capsules, 2 capsules with 75 mg dazucorilant/capsule, and 2 capsules of placebo equivalent.
Placebo
Other interventionPlacebo will be administered once daily in capsules of placebo equivalent.
Dazucorilant
DrugDazucorilant will be administered once daily in 75-mg capsules.
Treatment groups
Trial outcomes
Primary outcomes
Change from Baseline to Week 24 in the ALS Functional Rating Scale-Revised (ALSFRS-R) total score.
This outcome measure is assessed in study Part 1.
Incidence of Adverse Events (AEs), Serious Adverse Events (SAEs), treatment-related AEs, AEs by severity, and deaths due to AEs
This outcome measure is assessed in study Part 1.
Incidence of treatment-emergent AEs and SAEs
This outcome measure is assessed in study Part 2.
Incidence of treatment-emergent AEs leading to dose interruptions, dose reductions, and/or discontinuations of study drug
This outcome measure is assessed in study Part 2.
Secondary outcomes
Change from Baseline to Week 24 in muscle strength (assessed using hand-held dynamometer)
This outcome measure is assessed in study Part 1.
Change from Baseline to Week 24 in Percent Slow Vital Capacity
This outcome measure is assessed in study Part 1.
Change from Baseline to Week 24 in EuroQol-5 Dimensions-5 Levels (EQ-5D-5L)
This outcome measure is assessed in study Part 1.
Time to Death
This outcome measure is assessed in study Part 1.
Sponsors and contacts
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