About this trial
This is a phase l/ll open-label, multicentre, interventional single-arm trial of MB-CART19.1 in patients with refractory SLE systemic lupus erythematosus. In the phase I part, a maximum of n=12 patients will be treated in a maximum of 3 dose levels.
In the phase IIa part, a maximum of n=17 will be treated (n=10 patients in a 1st stage + n=7 patients in a 2nd stage). This includes the patients from the phase I part treated on the recommended dose level.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients at least 18 years of age.
Signed and dated informed consent before the conduct of any trial-specific procedure.
SLE fulfilling the 2019 ACR/EULAR classification criteria (refer to Appendix 8).
One BILAG A or two BILAG B despite treatment with at least two of the following treatment options: MMF, cyclophosphamide, rituximab belimumab, anifrolumab, methotrexate, azathioprine.
Disqualifiers
Active clinically significant central nervous system (CNS) dysfunction (including but not limited to uncontrolled seizure disorders, cerebrovascular ischemia or hemorrhage, dementia, paralysis).
Uncontrolled diabetes mellitus.
Therapy induced lung disease and tuberculosis.
Forced Vital Capacity (FVC) < 60 %, FEV1 < 60 %, Total Lung Capacity (TLC) < 60 % and DLCO (diffusion capacity) < 60 %.
Trial design
Sequential
Treatments tested in this trial
MB-CART19.1
Biological/VaccineMB-CART19.1 consists of autologous CD19 Chimeric Antigen Receptor (CAR) transduced CD4/CD8 enriched T cells
Treatment groups
Trial outcomes
Primary outcomes
Phase I: Determination of the recommended dose for phase IIa out of 3 dose levels
Based on a Bayesian Optimal Interval (BOIN) design with DLT after infusion of MB-CART19.1
Phase I: Safety and toxicity of MB-CART19.1
Incidence of adverse event (AE), classified according to CTCAE version 5.0, and evaluation and classification of Cytokine Release Syndrome (CRS) and Immune Effector cell-associated Neurotoxicity Syndrome (ICANS)
Phase IIa: Proportion of patients in remission after infusion of MB-CART19.1
Remission is evaluated by fulfillment of DORIS remission criteria of SLE
Secondary outcomes
Phase I and Phase IIa: Treatment response to MB-CART19.1
Measured by DORIS, LLDAS, SLEDAI 2K, BILAG
Phase I and Phase IIa: Patient reported outcomes
SF-36, FACIT-F, HAQ-DI
Phase I and Phase IIa: Cellular and humoral immunogenicity
Incidence of cellular and humoral immunogenicity
Phase I and Phase IIa: B cell aplasia and immunoglobulin deficiency
Occurrence and duration of B cell aplasia, immunoglobulin levels
Sponsors and contacts
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