Gender
All
Age Group
18 Years to 75 Years
Accepting Healthy Volunteers
No
Inclusion Criteria:
Capable of giving signed informed consent
Subjects aged 18 to 75 years (inclusive) at Screening (signing the ICF).
Expected survival period is >12 weeks.
Diagnosis of MM according to the IMWG criteria (2016 version).
One of the following criteria must be met:
If immunoglobulin (Ig)G type MM, then serum M protein >10 g/L; if IgA, IgD, IgE or IgM
type MM, then serum M protein >5 g/L
Urine M protein level >200 mg/24 hour
If light chain type MM, then serum free light chain (sFLC) >100 mg/L and K/λ FLC ratio is
abnormal.
Extramedullary lesions (>1 cm for diameter of the short axis).
For Phase I (dose-escalation) - Subjects who had received at least 3 prior lines of
therapy, had previous exposure to BCMA-Ag+ therapies, and were refractory to the last
line of therapy.
For Phase I (dose-expansion) and Phase II: Subjects with previous exposure to BCMA
directed therapies including BCMA bispecific antibody (e.g., teclistamab), BCMA antibody
directed conjugate (such as BLENREP), and BCMA-CAR-T (such as CARVYKT1TM)
Subjects with adequate hematologic, renal, hepatic, pulmonary and cardiac function.
Subject and partners willing to take and or use effective contraceptive measures until 2
years post IMP infusion.
Exclusion Criteria:
Pregnant or breastfeeding.
Seropositive for history of human immunodeficiency virus Active Hepatitis B infection and
or Hepatitis C infection
Known active or prior history of CNS involvement
History of autoimmune diseases (such as Crohn's disease, rheumatoid arthritis, systemic
lupus erythematosus) caused damage to terminal organs or required systemic application of
immunosuppressive or other drugs in the past 2 years
Presence of uncontrolled active infection
Subjects who received autologous hematopoietic stem cell transplantation (ASCT) within 8
weeks of Screening Visit or who plan to undergo ASCT during the study.
Subjects who received allogeneic stem cell therapy.
Any condition that in the opinion of the Investigator, would interfere with evaluation of
the IMP.
Received Bendamustine treatment 1 year prior to Screening Visit.