Long-term Extension to Study AC-058B301 to Investigate Safety, Tolerability and Disease Control of Ponesimod 20 mg in Patients With Relapsing Multiple Sclerosis

Completed · Phase 3

Conditions studied: Multiple Sclerosis

In brief

The study AC-058B301 (OPTIMUM; NCT02425644) has been designed to investigate the efficacy, safety and tolerability of ponesimod in subjects with relapsing multiple sclerosis (RMS). The AC-058B303 study is the long-term extension for the core study AC-058B301. The purpose of this long term extension of the core study AC-058B301 is to characterize the long-term safety, tolerability, and control of disease of ponesimod 20 mg in subjects with RMS.

Key facts

Study ID

NCT03232073

Run by

Actelion

People needed

877

Starts

2017-07-05

Expected to finish

2024-01-16

Last updated by the study team

2025-06-22

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Signed informed consent
• Subjects with MS having completed the double-blind treatment in the core study as scheduled
• Compliance with teriflunomide elimination procedure
• Women of childbearing potential (WOCBP) must have a negative pre-treatment urine pregnancy test, must agree to undertake 4-weekly urine pregnancy tests, and must have been using reliable methods of contraception. Fertile male subjects participating in the study must agree to use a condom.

You may not qualify if…

• Any of the following cardiovascular conditions on Day 1 pre-dose:
• Resting heart rate (HR) < 50 bpm;
• Presence of second degree atrioventricular (AV) block or third degree AV block or a QTcF interval > 470 ms (females), > 450 ms (males);
• Any of the following alerts from central laboratory at Visit 14 of the core study (EOT) which was confirmed as an alert at repeated testing or not repeated prior to FU1 of the core study:
• Lymphocyte count: < 0.2 x 109/L;
• Neutrophil count <1.0 × 109/L;
• Platelet count < 50 × 109/L;
• Creatinine clearance < 30 mL/min
• At Visit 14 of the core study (EOT) >30% decrease from core study baseline FEV1 and/or FVC;
• Clinically significant, persistent respiratory AEs (e.g., dyspnea) not resolved prior to first dosing in the extension study.
• Macular edema at any time between Visit 1 (Screening) in the core study and Day 1 of the extension study.
• Presence of the following at core study Visit 14 (EOT, Week 108), FU1, or abbreviated visit FU2, or on Day 1 of the extension study pre-dose:
• Suspected opportunistic infection of the CNS or any other infection which, in the opinion of the investigator, contraindicates re-start of the study drug;
• Stevens-Johnson syndrome or toxic epidermal necrolysis or drug reaction with eosinophilia and systemic symptoms.
• Need for and intention to administer forbidden study treatment-concomitant therapy
• Women who are pregnant or lactating.
• Male subjects wishing to parent a child;
• Treatment with any MS Disease Modifying Therapies;
• Any other clinically relevant medical or surgical condition, which, in the opinion of the investigator, would put the subject at risk by participating in the study;
• Subjects unlikely to comply with the extension study protocol based on investigator best judgment

Where it is running

• The Neurology Group — Pomona, California, United States
• Mountain View Clinical Research — Denver, Colorado, United States
• Neurology Associates of Ormond Beach — Ormond Beach, Florida, United States
• University of South Florida — Tampa, Florida, United States
• Josephson Wallack Munshower Neurology, PC — Indianapolis, Indiana, United States
• Raleigh Neurology Associates — Raleigh, North Carolina, United States
• Ohio Health — Columbus, Ohio, United States
• Advanced Neurosciences Institute — Franklin, Tennessee, United States
• Grodno University Hospital — Grodno, Belarus
• Minsk City Clinical Hospital 5 — Minsk, Belarus
• Republican Scientific Clinical Centre — Minsk, Belarus
• Vitebsk Regional Diagnostic Center — Vitebsk, Belarus
• Vitebsk Regional Clinical Hospital — Vitebsk, Belarus
• University Clinicl Center Sarajevo — Sarajevo, Bosnia and Herzegovina
• UMHAT Sveti Georgi — Plovdiv, Bulgaria
• Multiprofile Hospital for Active Treatment in Neurology and Psychiatry Sveti Naum — Sofia, Bulgaria
• Multiprofile Hospital For Active Treatment National Cardiology Hospital, Ead — Sofia, Bulgaria
• Acibadem City Clinic Tokuda Hospital — Sofia, Bulgaria
• St Ivan Rilski University Multiprofile Hospital For Active Treatment — Sofia, Bulgaria
• University Multiprofile Hospital for Active Treatment Alexandrovska EAD — Sofia, Bulgaria
• Military Medical Academy Multiprofile Hospital for Active Treatment Sofia — Sofia, Bulgaria
• University of Alberta — Edmonton, Alberta, Canada
• Royal Jubilee Hospital — Victoria, British Columbia, Canada
• Ottawa Hospital — Ottawa, Ontario, Canada
• The Research Center of Southern California, LLC — Carlsbad, California, United States

Full record on ClinicalTrials.gov

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