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Study of IMCY-0141 in Recent Onset of Multiple Sclerosis (IMCY-MS-001)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT05417269
Recruitment Status : Recruiting
First Posted : June 14, 2022
Last Update Posted : June 14, 2022
Sponsor:
Information provided by (Responsible Party):
Imcyse SA

Brief Summary:

The IMCY-MS-001 study is a study to test a new experimental drug, IMCY-0141, for the treatment of Relapsing-Remitting Multiple Sclerosis (RR-MS).

The pathophysiology of MS with known myelin autoantigens and T cell epitopes makes this disease a particularly attractive indication for development of an immunotherapeutic based on the Imcyse technology.

Based on the unique mechanism of action of the drug, IMCY-0141 administered as early as possible after confirmation of the diagnosis may potentially switch-off the autoimmune process and limit the corresponding myelin destruction. Newly (recently) diagnosed patients will be targeted to tackle the disease at its onset.

Before launching any efficacy studies, safety of IMCY-0141 in MS patients must be evaluated with a phase I, open-label, dose escalation clinical trial to evaluate the safety of three IMCY-0141 doses followed by a phase II, double-blind, randomized study with an adaptive design to determine if any IMCY-0141 dose(s) offer superior efficacy relative to placebo and to assess immune responses and biomarker data as potential early predictors of efficacy of IMCY-0141 in adults presenting with RR-MS.


Condition or disease Intervention/treatment Phase
Multiple Sclerosis, Relapsing-Remitting Drug: IMCY-0141 Drug: Placebo Drug: Dimethyl Fumarate Phase 1 Phase 2

Detailed Description:

The Sample Size determined for this study is as follows:

Phase I:

A total of 12 patients (4 patients in each of 3 dose cohorts) are planned to be enrolled. The study sample size has been estimated as adequate to provide a reliable safety assessment of the tested doses. All primary, secondary and exploratory endpoints will be summarized by descriptive statistics (continuous variables) or frequency tables (categorical variables), by dose group and overall. Additional patients may be enrolled if requested by the IDMC (Independent Data Monitoring Committee).

Phase II:

The sample size estimation is based on the total cumulative number of CUAL observed on brain MRI scans from week 12 till week 36. The study sample size has been estimated as adequate to determine if any IMCY-0141 doses offer superior efficacy (as measured by CUAL) relative to placebo. Using the negative binomial model for CUAL, a maximum total of 150 patients are planned to be enrolled (including the 12 patients enrolled in phase I), with 30 patients randomized to each of five groups:

  • Placebo
  • IMCY-0141 dose 1
  • IMCY-0141 dose 2
  • IMCY-0141 dose 3
  • DMF (open label)

During the adaptive design phase (Phase IIa), a minimum of 40 patients will be enrolled (with 8 patients randomized to each of five groups) and analyzed along with the 12 phase I patients as detailed here:

  • Placebo: 8 patients
  • IMCY-0141 dose 1: 8 patients + 4 phase I patients
  • IMCY-0141 dose 2: 8 patients + 4 phase I patients
  • IMCY-0141 dose 3: 8 patients + 4 phase I patients
  • DMF (open label) : 8 patients

During the Phase IIb part, up to 98 additional patients will be enrolled in order to get up to 150 patients spread over the groups selected for Phase IIb, with a maximum 30 patients randomized to DMF. These sample sizes are sufficient to deliver Type I errors less than 5% in our chosen null scenarios, and unconditional powers greater than 75% and conditional powers greater than 90% in our two alternative scenarios.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 150 participants
Allocation: Randomized
Intervention Model: Sequential Assignment
Intervention Model Description:

The study will be conducted under a Bayesian adaptive design approach comprising of two phases:

  • Phase I where 3 IMCY-0141 doses will be administered following a dose escalation approach. An IDMC safety assessment will allow the escalation from lower to upper dose.
  • Phase IIa leading to a preliminary estimate of the efficacy of each dose and determination of promising doses. The 2 doses that emerge as most promising will be recommended to advance to Phase IIb, where final efficacy will be judged, again relative to placebo. The least promising dose may be dropped, at the discretion of the trial's IDMC.

All told, Phase II will enrol patients who will be randomized to IMCY-0141 or placebo or DMF. At the conclusion of Phase IIb, determined doses will be labelled effective.

Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Masking Description: This is a two-step study with a phase I, open-label, dose escalation clinical trial to evaluate the safety of three IMCY-0141 doses followed by a phase II, double-blind, randomized study with an adaptive design to determine if any IMCY-0141 doses offer superior efficacy relative to placebo.
Primary Purpose: Treatment
Official Title: A Phase I/II Dose Escalation/Adaptive Design Study to Evaluate the Safety and Efficacy of IMCY-0141 in Patients With Relapsing Remitting-Multiple Sclerosis (RR-MS)
Actual Study Start Date : April 12, 2022
Estimated Primary Completion Date : May 23, 2025
Estimated Study Completion Date : December 31, 2025

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Experimental: Cohort 1 - Phase I (IMCY-0141 Dose 1)
The first dose (Cohort 1) will consist of the administration of 150 μg of peptide (IMCY-0141) in two separate injections of 75 μg each (500μl each).
Drug: IMCY-0141

The investigational medicinal product (IMP) consists in a small synthetic peptide (23 amino acids - IMCY-0141) combining a known human epitope of MOG flanked with a thioredox motif, presented in the form of a freeze-dried sterile powder and diluent for subcutaneous (SC) administration. The diluent includes the adjuvant aluminium hydroxide (alum) at a concentration of 900 μg/mL. Treatment will be injected within 4h of resuspension of the powder with the diluent.

Treatment will consist of 6 immunizations (separated by 14 days) of the IMP by SC injection in the upper arm, in the region of the triceps (lateral part of the arm, midway between the elbow and the shoulder). Half of the dose to be administered will be injected concomitantly in both arms.

Other Name: Imotope

Experimental: Cohort 2 - Phase I (IMCY-0141 Dose 2)
The second dose (Cohort 2) will consist of the administration of 450 μg of peptide (IMCY-0141) in two separate injections of 225 μg each (500μl each).
Drug: IMCY-0141

The investigational medicinal product (IMP) consists in a small synthetic peptide (23 amino acids - IMCY-0141) combining a known human epitope of MOG flanked with a thioredox motif, presented in the form of a freeze-dried sterile powder and diluent for subcutaneous (SC) administration. The diluent includes the adjuvant aluminium hydroxide (alum) at a concentration of 900 μg/mL. Treatment will be injected within 4h of resuspension of the powder with the diluent.

Treatment will consist of 6 immunizations (separated by 14 days) of the IMP by SC injection in the upper arm, in the region of the triceps (lateral part of the arm, midway between the elbow and the shoulder). Half of the dose to be administered will be injected concomitantly in both arms.

Other Name: Imotope

Experimental: Cohort 3 - Phase I (IMCY-0141 Dose 3)
The third dose (Cohort 3) will consist of the administration of 1350 μg of peptide (IMCY-0141) in two separate injections of 675 μg each (500μL each).
Drug: IMCY-0141

The investigational medicinal product (IMP) consists in a small synthetic peptide (23 amino acids - IMCY-0141) combining a known human epitope of MOG flanked with a thioredox motif, presented in the form of a freeze-dried sterile powder and diluent for subcutaneous (SC) administration. The diluent includes the adjuvant aluminium hydroxide (alum) at a concentration of 900 μg/mL. Treatment will be injected within 4h of resuspension of the powder with the diluent.

Treatment will consist of 6 immunizations (separated by 14 days) of the IMP by SC injection in the upper arm, in the region of the triceps (lateral part of the arm, midway between the elbow and the shoulder). Half of the dose to be administered will be injected concomitantly in both arms.

Other Name: Imotope

Experimental: Group 1 - Phase II (IMCY-0141 Dose 1)
Administration of IMCY-0141, 150 μg combined with alum adjuvant.
Drug: IMCY-0141

The investigational medicinal product (IMP) consists in a small synthetic peptide (23 amino acids - IMCY-0141) combining a known human epitope of MOG flanked with a thioredox motif, presented in the form of a freeze-dried sterile powder and diluent for subcutaneous (SC) administration. The diluent includes the adjuvant aluminium hydroxide (alum) at a concentration of 900 μg/mL. Treatment will be injected within 4h of resuspension of the powder with the diluent.

Treatment will consist of 6 immunizations (separated by 14 days) of the IMP by SC injection in the upper arm, in the region of the triceps (lateral part of the arm, midway between the elbow and the shoulder). Half of the dose to be administered will be injected concomitantly in both arms.

Other Name: Imotope

Experimental: Group 2 - Phase II (IMCY-0141 Dose 2)
Administration of IMCY-0141, 450 μg combined with alum adjuvant.
Drug: IMCY-0141

The investigational medicinal product (IMP) consists in a small synthetic peptide (23 amino acids - IMCY-0141) combining a known human epitope of MOG flanked with a thioredox motif, presented in the form of a freeze-dried sterile powder and diluent for subcutaneous (SC) administration. The diluent includes the adjuvant aluminium hydroxide (alum) at a concentration of 900 μg/mL. Treatment will be injected within 4h of resuspension of the powder with the diluent.

Treatment will consist of 6 immunizations (separated by 14 days) of the IMP by SC injection in the upper arm, in the region of the triceps (lateral part of the arm, midway between the elbow and the shoulder). Half of the dose to be administered will be injected concomitantly in both arms.

Other Name: Imotope

Experimental: Group 3 - Phase II (IMCY-0141 Dose 3)
Administration of IMCY-0141, 1350 μg combined with alum adjuvant.
Drug: IMCY-0141

The investigational medicinal product (IMP) consists in a small synthetic peptide (23 amino acids - IMCY-0141) combining a known human epitope of MOG flanked with a thioredox motif, presented in the form of a freeze-dried sterile powder and diluent for subcutaneous (SC) administration. The diluent includes the adjuvant aluminium hydroxide (alum) at a concentration of 900 μg/mL. Treatment will be injected within 4h of resuspension of the powder with the diluent.

Treatment will consist of 6 immunizations (separated by 14 days) of the IMP by SC injection in the upper arm, in the region of the triceps (lateral part of the arm, midway between the elbow and the shoulder). Half of the dose to be administered will be injected concomitantly in both arms.

Other Name: Imotope

Placebo Comparator: Group 4 (Placebo Group) - Phase II
Administration of placebo combined with alum adjuvant.
Drug: Placebo
The placebo will be administered by subcutaneous route, once every two weeks for 6 times. Placebo will be administered to patients randomized in the "placebo" group during Phase II only.

Active Comparator: Group 5 (Active Control Group) - Phase II
Parallel, Open-Label, Active Control Group Oral administration of Dimethyl Fumarate (DMF) given according to its SmPC for the whole duration of the study.
Drug: Dimethyl Fumarate

Dimethyl Fumarate (DMF) will be given orally, according to its SmPC for the whole duration of the study.

Dimethyl Fumarate (DMF) will be administered to patients randomized in the active control group during Phase II only.

Other Name: DMF




Primary Outcome Measures :
  1. Ph I Primary safety endpoint (1) - Solicited injection site and systemic AEs [ Time Frame: Up to 36 weeks ]
    Occurrence, intensity and relationship of any solicited injection site and systemic adverse events (AEs) during a 7-day follow-up period (i.e., day of study product administration and 6 subsequent days) after each IMCY-0141 administration analysing local injection site and systemic adverse events, clinical and laboratory data.

  2. Ph I Primary safety endpoint (2) - Unsolicited injection site and systemic AEs [ Time Frame: Up to 36 weeks ]
    Occurrence, intensity and relationship of any unsolicited injection site (local) and systemic AEs occurring throughout the study period.

  3. Ph I Primary safety endpoint (3) - All SAEs [ Time Frame: Up to 36 weeks ]
    Occurrence and relationship of all serious adverse events (SAEs) occurring throughout the study period.

  4. Ph I Primary safety endpoint (4) - Abnormalities on different parameters [ Time Frame: Up to 36 weeks ]
    Occurrence and relationship of any abnormality in physical examination, vital signs, 12-lead ECG, MRI, haematological and biochemical laboratory parameters.

  5. Ph II Primary efficacy endpoint - Number of CUAL [ Time Frame: Week 12 to Week 36 ]
    Total cumulative number of CUAL observed on brain MRI scans (centralized reading) from week 12 till week 36 vs placebo.


Secondary Outcome Measures :
  1. Ph I/II Secondary endpoint (1) - Relapse rate [ Time Frame: At Week 36 ]
    Annualized relapse rate at week 36 vs baseline

  2. Ph I/II Secondary endpoint (2) - Relapse-free rate [ Time Frame: At Week 36 ]
    Proportion of relapse-free patients at week 36 vs baseline

  3. Ph I/II Secondary endpoint (3) - EDSS Score [ Time Frame: At Week 36 ]
    EDSS score at week 36 vs screening

  4. Ph I/II Secondary endpoint (4) - Neurofilament light chains levels [ Time Frame: Up to 36 weeks ]
    Neurofilament light chains levels in the serum of the patient (sNfL) at baseline, weeks 2, 4, 6, 8, 10, 12, 24 and 36.

  5. Ph II Secondary endpoint (1) - Solicited injection site and systemic AEs [ Time Frame: Up to 36 weeks ]
    Occurrence, intensity and relationship of any solicited local and systemic adverse event (AE) during a 7-day follow-up period (i.e., day of study drug administration and 6 subsequent days) after each IMCY-0141 administration.

  6. Ph II Secondary endpoint (2) - Unsolicited injection site and systemic AEs [ Time Frame: Up to 36 weeks ]
    Occurrence, intensity and relationship of any unsolicited injection site (local) and systemic AEs occurring throughout the study period.

  7. Ph II Secondary endpoint (3) - All SAEs [ Time Frame: Up to 36 weeks ]
    Occurrence and relationship of all serious adverse events (SAEs) occurring throughout the study period.

  8. Ph II Secondary endpoint (4) - Abnormalities on different parameters [ Time Frame: Up to 36 weeks ]
    Occurrence, intensity and relationship of any abnormality in physical examination, vital signs, 12-lead ECG, MRI, haematological and biochemical laboratory parameters.


Other Outcome Measures:
  1. To assess the disease activity and the efficacy of IMCY-0141 on MRI parameters and if any IMCY-0141 dose(s) offer superior efficacy. [ Time Frame: Up to 36 weeks ]
    Measured by cumulative number of CUAL, number of new Gadolinium-enhancing T1 lesions, number of active (new or enlarging) T2/FLAIR lesions, number of persistent Gadolinium enhancing T1 lesions vs baseline and number of shrinking FLAIR lesions versus baseline.

  2. To assess the disease activity [ Time Frame: Up to 36 weeks ]
    Measured by volume change versus baseline in T2/FLAIR lesions, Gadolinium-enhancing T1 lesions, shrinking FLAIR lesions and Brain (White matter, grey matter, cortical grey matter, lateral, thalamus)

  3. To evaluate and characterize the MOG-specific CD4+ T cells induced by IMCY-0141 and its impact on autoreactive T-cell responses specific for myelin proteins. [ Time Frame: Up to 36 weeks ]
    Changes in cytolytic CD4+ T cell response specific for IMCY-0141, in CD4+ and CD8+ effector T cell responses specific for myelin proteins MOG and/or PLP

  4. Impact of IMCY-0141 on auto-antibodies against myelin proteins (MOG,PLP) [ Time Frame: Up to 36 weeks ]
    Detection of change in MS associated auto-antibodies



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


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Ages Eligible for Study:   18 Years to 45 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria (Phase I and II):

  1. Male or female between 18 and and 45 years old.
  2. RR-MS according to the 2017 revisions of the McDonald Criteria.
  3. Patients should be newly diagnosed or have a disease duration ≤ 3 years.
  4. If not newly diagnosed, patients should have at least one documented clinical relapse in the last 12 months.
  5. Patients should present with at least 1 Gadolinium-enhancing (Gd+) T1-weighted lesion OR at least 2 new or enlarging T2-weighted lesions at screening MRI compared to a reference scan in the last 6 months.
  6. No background MS treatment at the time of study treatment start (refer to exclusion criteria for details about authorized washout period for some first line treatment).
  7. EDSS ≤ 5.0 at screening.
  8. Women of childbearing potential (1) should use an highly effective contraception method (2) from screening and for the whole duration of the study. (1) Of child-bearing potential is defined as being post onset of menarche and not meeting any of the following conditions:

    • Menopausal for at least 2 years (follicle-stimulating hormone within menopausal range),
    • Having undergone bilateral tubal ligation at least 1 year previously
    • Having undergone bilateral oophorectomy or hysterectomy. (2) HIGHLY EFFECTIVE contraceptive measures acceptable for the whole duration of the study have been defined based on the CTFGs recommendations on contraception and are the following:
    • Combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation (oral, intravaginal, transdermal),
    • Progestogen-only hormonal contraception associated with inhibition of ovulation (oral, injectable, implantable).
    • Intrauterine device (IUD)
    • intrauterine hormone-releasing system (IUS)
    • Monogamous relationship with vasectomized partner. Partner must have been vasectomized for at least 6 months prior to the patient's entry into the study
    • Abstinence or absence of sexual relations with men.
  9. Ability to understand and comply with research requirements and procedures, in opinion of investigator (Signed Informed Consent)

Exclusion Criteria (Phase I and II):

  1. Secondary or primary progressive multiple sclerosis and late onset multiple sclerosis (LOMS).
  2. Findings on brain MRI scan indicating any clinically significant brain abnormality like:

    • Doubts about MS diagnosis (based on clinically or imaging abnormalities)
    • PML cases (positive PML checklist according to "suspected PML case adjudication instructions")
    • Co-morbidities influencing the MS disease evolution (i.e. Tumor, large infarction, CSF obstruction)
  3. Patient has complete transverse myelitis or bilateral optic neuritis.
  4. Systemic corticosteroids or adrenocorticotropic hormone (ACTH) without chronic use within 30 days prior to screening MRI.
  5. Treatment with rituximab, ocrelizumab, mitoxantrone, or lymphocyte depleting therapies (e.g., alemtuzumab, anti-CD4, cladribine, cyclophosphamide, total body irradiation, bone marrow transplantation) within 48 weeks prior to study treatment start.
  6. Use of lymphocyte trafficking blockers (e.g., natalizumab, fingolimod) within 24 weeks prior to study treatment start.
  7. Treatment with β-interferons or glatiramer acetate within 4 weeks prior to study treatment start.
  8. Treatment with teriflunomide within 12 weeks prior to study treatment start.
  9. Exposure to dimethyl fumarate within 6 months prior to study treatment start.
  10. Any investigational drug within the past 6 months at the time of study treatment start.
  11. Immunosuppressive therapy including chronic use of systemic steroids in past year. Topical, inhalational or intranasal corticosteroids are allowed.
  12. Primary or secondary immune deficiency disorders with the exception of well-controlled diabetes or thyroid disorder.
  13. Patients with combined other auto-immune or inflammatory disorders.
  14. Have signs or symptoms of active or long COVID infection or a positive COVID PCR test during the screening period. In the case of PCR positivity, a reswabbing will be done. If reswabbing returns a negative result, the initiation of study treatment can occur.
  15. Have evidence of current or past human immunodeficiency virus (HIV-1 and 2), Hepatitis B or Hepatitis C infection: HBsAg+ or anti-HBc+; anti-HCV+ (unless the polymerase chain reaction [PCR] for HBV DNA (hepatitis B) or HCV RNA (hepatitis C) is negative according to local procedure).
  16. Current signs or symptoms of infection at time of study treatment start or within 2 weeks prior to planned administration of the study product or intravenous antibiotics within 2 months prior to the first planned administration of the study product.
  17. Live, attenuated vaccine within 3 months prior to the first planned administration of the study product.
  18. Inability to comply with MRI scanning, including contraindications to MRI such as known allergy to gadolinium contrast media, claustrophobia, presence of a pacemaker, cochlear implants, ferromagnetic devices or clips, intracranial vascular clips, insulin pumps, nerve stimulators.
  19. Any other significant disease, disorder or finding which may significantly increase the risk to the patient because of participation in the study, affect the ability of the patient to participate in the study or impair interpretation of the study data.
  20. Patients with a known hypersensitivity to any component of the drug product.
  21. Patients with psychiatric or cognitive disorders.
  22. History of MS related seizures not adequately controlled by medications.
  23. History of cancer, except adequately treated basal cell or squamous cell carcinoma of the skin (no more than 3 lesions requiring treatment in lifetime) or carcinoma in situ/cervical intraepithelial neoplasia of the uterine cervix, unless considered cured > 5 years
  24. Abnormal renal function defined by creatinine clearance ≤ 60 ml/min/1.73m2.
  25. Patient with total lymphocytes count < 1000/mm3.
  26. Patient with abnormal hepatic function defined as any liver enzyme > 3 ULN, bilirubin > 3 ULN with exception of Gilbert Syndrome.
  27. Breastfeeding/lactating or pregnant women.

Exclusion Criteria specific for Phase I:

1. Patient HLA DRB1*03:01 positive

Exclusion Criteria specific for Phase II:

1. Patients already included in Phase I


Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05417269


Contacts
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Contact: Valérie BARETTE +32 (0) 4 325 11 00 v.barette@imcyse.com
Contact: Jean VAN RAMPELBERGH, PhD +32 (0) 4 325 11 00 j.vanrampelbergh@imcyse.com

Locations
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Moldova, Republic of
Republican Clinical Hospital, ARENSIA Exploratory Medicine Recruiting
Chisinau, Moldova, Republic of, MD-2025
Contact: Vitalie LISNIC, Prof.         
Principal Investigator: Vitalie LISNIC, Prof.         
Sponsors and Collaborators
Imcyse SA
Investigators
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Principal Investigator: Vitalie LISNIC, Prof. ARENSIA Exploratory Medicine, Moldova
Publications:
Carlin BP, Louis TA. Bayesian Methods for Data Analysis, 3rd ed. 2009; Boca Raton, FL: CRC Press.
Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency. Guideline on the clinical investigation of medicinal products for the treatment of multiple sclerosis. CHMP/771815/2011 Rev. 2. Effective date 1 October 2015.
Guo X, Carlin BP. Separate and joint modeling of longitudinal and event time data using standard computer packages. The American Statistician; 2004; 58, 16-24.
National Cancer Institute (NCI); U.S. Department of health and human services, National Institutes of Health. Common Terminology Criteria for Adverse Events (CTCAE) Version 4.0. Published: May 28, 2009 (v4.03: June 14, 2010).
National Multiple Sclerosis Society. Who Gets MS?. http://www.nationalmssociety.org/aboutmultiple-sclerosis/what-we-know-about-ms/who-gets-ms/index.aspx. Accessed 30 March 2016.

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Responsible Party: Imcyse SA
ClinicalTrials.gov Identifier: NCT05417269    
Other Study ID Numbers: IMCY-MS-001
2021-004974-67 ( EudraCT Number )
First Posted: June 14, 2022    Key Record Dates
Last Update Posted: June 14, 2022
Last Verified: June 2022
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Imcyse SA:
RR-MS
Relapsing-Remitting Multiple Sclerosis
Multiple Sclerosis
Synthetic peptide
Additional relevant MeSH terms:
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Multiple Sclerosis
Multiple Sclerosis, Relapsing-Remitting
Sclerosis
Pathologic Processes
Demyelinating Autoimmune Diseases, CNS
Autoimmune Diseases of the Nervous System
Nervous System Diseases
Demyelinating Diseases
Autoimmune Diseases
Immune System Diseases
Dimethyl Fumarate
Dermatologic Agents
Immunosuppressive Agents
Immunologic Factors
Physiological Effects of Drugs