MB-CART2019.1 in Refractory Multiple Sclerosis

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• Individuals must meet all of the following criteria to be included in the trial:
• Have read, understood and signed/dated the informed consent form
• Age ≥18 years at the time of screening
• Diagnosis of multiple sclerosis fulfilling the 2017 McDonald criteria
• Progressive or worsening MS according to 2014 Lublin MS phenotypic criteria
• Disease activity despite treatment:; Definition for RRMS/SPMS:; 1 or more relapses or an EDSS deterioration in the previous year (1 point or more if EDSS is between 3 and 5.5; 0.5 point or more if EDSS 6-6.5) or MRI activity (presence of at least 2 new/enlarging T2 lesions or T1CE lesions) despite on/previous treatment with an escalation therapy drug (i.e. natalizumab, ofatumumab, ocrelizumab, alemtuzumab or mitoxantrone) for at least 6 months; Definition for PPMS:; EDSS deterioration in the previous year (1 point or more if EDSS between 3 and 5.5; 0.5 point or more if EDSS 6-6.5) or MRI activity (presence of at least 2 new/enlarging T2 lesions or T1CE lesions) despite on/previous treatment with ocrelizumab (treatment duration ≥ 6 months); Evidence of intrathecal IgG production through oligoclonal bands (OCBs) present in the cerebrospinal fluid in PPMS or SPMS
• Fully vaccinated against Hepatitis B
• Presence of varicella-zoster virus (VZV) antibodies, or completion of at least one dose of varicella zoster glycoprotein E Shingrix vaccine at least 4 weeks prior to treatment
• Presence of anti EBV antibodies
• Organ function / lab parameters as follows; Absolute Neutrophil count > 2000/uL; Platelets > 150,000/uL; Absolute Lymphocyte count > 1000/uL; Serum IgG > 500 mg/dl; Hemoglobin > 9g/dl
• Adequate renal, hepatic, pulmonary and cardiac function defined as; Creatinine ,< 2mg/dl or creatinine clearance > to 60ml/min; ALT/AST < 3x ULN; Total bilirubin < 1,5 mg/dl, except for subjects with Gilbert syndrome; Cardiac ejection fraction > 40%, no evidence of significant pericardial effusion (echography) or clinically significant ECG findings; Baseline oxygen saturation > 94% on air room
• Negative test for Hepatitis B core antibody and Hepatitis C core antibody, CMV, VZ, Herpes simplex virus 1 and 2 ab
• Negative test for Myelin-Oligodendrocyte-Glycoprotein (MOG) and Aquaporin-4 (AQP-4) autoantibodies
• Women of childbearing potential (WOCBP) must be able and willing to use at least one highly effective method of contraception from the time of consent until 12 months after the administration of MB-CART2019.1. WOCBP must refrain from donating eggs during the same period. A woman is considered of childbearing potential, i.e., fertile, following menarche and until having been postmenopausal for at least 12 months or unless otherwise permanently sterile. Permanent sterilization methods include hysterectomy, bilateral salpingectomy and bilateral oophorectomy. For the definition and a list of highly effective methods of contraception, see Appendix 1 Contraception Guidelines
• Men whose sexual partners are WOCBP must be able and willing to use at least one highly effective method of contraception (used by themselves or their female partners; see Appendix 1 Contraception Guidelines) from the time of consent until 12 months after the administration of MB-CART2019.1
• Willingness and ability to comply with all trial procedures
• Adequate vital signs

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• Patients with positive antiphospholipid antibodies, anti-cardiolipin or lupus anticoagulant
• The following cardiac conditions:; New York Heart Association Stage III or IV congestive heart failure Myocardial infarction or coronary artery bypass graft ≤ 6 months prior to enrollment History of clinically significant ventricular arrhythmia or unexplained syncope, not believed to be vasovagal in nature or due to dehydration
• History of severe non-ischemic cardiomyopathy Medications:; Systemic corticosteroids >10 mg within 7 days prior to leukapheresis; T cell targeting drugs (e.g. mycophenolate mofetil, calcineurin inhibitors) within 21 days prior to leukapheresis, Previous CAR T cell therapy, Live vaccines within 30 days prior to leukapheresis, Current Cytotoxic drugs Other MS disease modifying drugs (as stated in 5.8.1.)
• Concurrent participation in another interventional trial
• Known history of and/or active infection with hepatitis B (hepatitis B surface antigen positive)
• Known history of infection with hepatitis C virus unless treated and confirmed to be polymerase chain reaction (PCR) negative
• Any active uncontrolled bacterial, viral or fungal infection
• A history of and/or active infection with human immunodeficiency virus (HIV)
• A history of active or latent tuberculosis (TB); TB testing should be performed at screening (Quantiferon test). Confirmed active or latent TB the patient can be re-screened after full completion of anti-tuberculosis treatment (9 months of Isoniazide therapy)
• History of neuromyelitis optica spectrum disorder (NMOSD) or MOG antibody associated disease
• History of CNS or spinal cord tumor, metabolic or infectious causes of myelopathy, genetically inherited progressive CNS disorder, sarcoidosis or non MS-progressive neurological condition affecting the ability to perform the study assessments
• History of cytopenia consistent with MDS diagnosis
• History of sickle cell anemia or other hemoglinopathies
• Primary immune deficiency disease
• Prevalent inflammatory diseases of the GI tract (e.g. Inflammatory bowel disease, Peptic ulcer) which could result in a higher risk for gastrointestinal perforation
• Hypersensitivity against any drug or its ingredients/impurities that is scheduled or likely to be given during trial participation, e.g. as part of the mandatory preparative lymphodepletion or rescue medication/salvage therapies for treatment related toxicities
• History of moderate or worse renal impairment (eGFR < 30 ml/min/1.73 m2)
• For relapsing and progressive MS forms: the disability status according to the EDSS scale is larger than 7.0 or the age is larger than 55 years; Only applicable for progressive MS (PPMS/SPMS), where the disease duration is longer than 15 years
• History of a malignancy unless disease free for ≥5 years with the exception of basal or squamous cell skin cancer
• Patients will be entered into this trial only if they meet none of the following criteria:
• Contraindication of trial related procedures as judged by the investigator
• Pregnant of breast-feeding females; female patients of child-bearing potential not willing to practice a highly effective form of birth control from leukapheresis and for 12 months after dosing the IMP
• Inability to understand the procedures and risks associated with the Trial
• Any additional contraindication of trial related procedures as judged by the investigator