This is a single-arm, open-label, multicenter, dose-escalation, and dose-expansion phase I/II clinical study to evaluate the safety, tolerability, pharmacokinetics, immunogenicity, and efficacy of LBL-034 in patients with Relapsed/Refractory Multiple Myeloma (R/R MM).
Agree to follow the trial treatment regimen and visit schedule, voluntarily enroll in the study, and sign the written informed consent form;
Age ≥ 18 years at the time of signing the informed consent;
Eastern Cooperative Oncology Group (ECOG) Performance Status Scale≤ 1；
Documentation of initial diagnosis of multiple myeloma according to IMWG diagnostic criteria；
Subjects who underwent major organ surgery (excluding needle biopsy) or significant trauma within 4 weeks prior to the initial use of the investigational drug,or require elective surgery during the trial period;
Use of immunomodulatory drugs within 14 days prior to the initial use of the investigational drug, including but not limited to thymosin, interleukin-2, and interferon；
Systemic use of corticosteroids or other immunosuppressants within 14 days prior to the initial use of the investigational drug;The following conditions are excluded: Treatment with topical, ocular, intra-articular, intranasal, and inhaled corticosteroids; short-term use of glucocorticoids for preventive therapy (e.g., to prevent contrast allergy);
Patients with active hepatitis B or C；