A Multi-Center, Randomized, Double-Blinded Phase 3 Study to Evaluate the Efficacy, Safety, and Tolerability of IMU-838 versus Placebo in Adults with Relapsing Multiple Sclerosis (ENSURE-2)

You may be able to join if

• 1. Male or female patient (age ≥18 to ≤55 years) 2. Patients with an established diagnosis of MS according to 2017 McDonald Criteria [41] 3. Patients with RMS comprising of relapsing remitting MS (RRMS) and active secondary progressive MS, both defined according to Lublin criteria 1996 and 2014. Patients are eligible for this trial if their disease modifying treatment has failed due to efficacy, safety, or tolerability issues, if they have contraindications or no access to treatment, or if they refuse the offered MS treatment.
• 4. Active disease as defined by Lublin 2014 evidenced prior to Screening by: a. At least 2 relapses(a) in the last 24 months before randomization, or b. At least 1 relapse(a) in the last 12 months before randomization, or c. A positive Gd+ MRI scan (brain and/or spine) in the last 12 months prior to randomization. (a) Relapses and/or Gd+ MRI lesions must have been assessed and documented by a physician in the patient files.
• 5. EDSS score between 0 and 5.5 (inclusive) at SV1.
• 6. Female patients: a. must be of non-childbearing potential, i.e., surgically sterilized (hysterectomy, bilateral salpingectomy, bilateral oophorectomy at least 6 weeks before SV1) or postmenopausal (where postmenopausal is defined as no menses for 12 months without an alternative medical cause), or b. if of childbearing potential, must have a negative pregnancy test at SV1 (blood test) and before the first IMP intake (Day 1 blood or urine test). They must agree not to attempt to become pregnant, must not donate ova, and must use a highly effective contraceptive method (see below) together with a barrier method between trial consent and 30 days after the last intake of the IMP. c.highly effective forms of birth control are those with a failure rate less than 1% per year and include: i.oral, intravaginal, or transdermal combined (estrogen and progestogen containing) hormonal contraceptives associated with inhibition of ovulation. ii.oral, injectable, or implantable progestogen-only hormonal contraceptives associated with inhibition of ovulation. iii.intrauterine device or intrauterine hormone-releasing system. iv.bilateral tubal occlusion. v.vasectomized partner (i.e., the patient's male partner underwent effective surgical sterilization before the female patient entered the clinical trial and is the sole sexual partner of the female patient during the clinical trial). vi.sexual abstinence (acceptable only if it is the patient's usual form of birth control/lifestyle choice; periodic abstinence [e.g., calendar, ovulation, symptothermal, postovulation methods] and withdrawal are not acceptable methods of contraception). d.Barrier methods of contraception include: i.condom. ii.occlusive cap (diaphragm or cervical/vault caps) with spermicidal gel/film/cream/suppository.
• 7. Male patients must agree not to father a child or to donate sperm starting at SV1, throughout the clinical trial, and for 30 days after the last intake of the IMP. Male patients must also: a. abstain from sexual intercourse with a female partner (acceptable only if it is the patient's usual form of birth control/lifestyle choice), or b. use adequate barrier contraception during treatment with the IMP and until at least 30 days after the last intake of the IMP, and c. if they have a female partner of childbearing potential, the partner should use a highly effective contraceptive method as outlined in inclusion criterion 5. d. if they have a pregnant partner, they must use condoms while taking the IMP to avoid exposure of the fetus to the IMP.
• 8. Willingness and ability to comply with the protocol. 9. Patients are able to read and understand the given information about the trial (including their language capabilities) and provide written informed consent prior to any trial-related procedure.