Phase 1/2 Study of Linvoseltamab in Adult Patients With Relapsed or Refractory Multiple Myeloma

The main purpose of this study is to learn about the safety of linvoseltamab and to find out what is the best dose of linvoseltamab to give to patients with multiple myeloma and to look for any signs that linvoseltamab can effectively treat cancer. The study is looking at several other research questions, including: * Side effects that may be experienced by people receiving linvoseltamab * How linvoseltamab works in the body * How much linvoseltamab is present in the blood * How linvoseltamab may work to treat cancer

• Key Inclusion Criteria: 1. Eastern Cooperative Oncology Group (ECOG) performance status ≤ 1 2. Confirmed diagnosis of active Multiple Myeloma (MM) by International Myeloma Working Group (IMWG) diagnostic criteria 3. Patients must have myeloma that is response-evaluable according to the 2016 IMWG response criteria as defined in the protocol. * Phase 1, Part 1 (Dose Escalation): Patients with MM who have exhausted all therapeutic options that are expected to provide meaningful clinical benefit, either through disease relapse, treatment refractory disease or intolerance of the therapy and including either: a. Progression on or after at least 3 lines of therapy, or intolerance of therapy, including a proteasome inhibitor, an Immunomodulatory agent (IMiD), and an anti-CD38 antibody, OR b. Progression on or after an anti-CD38 antibody and have disease that is "double refractory" to a proteasome inhibitor and an IMiD, or intolerance of therapy. The anti-CD38 antibody may have been administered alone or in combination with another agent such as a proteasome inhibitor (PI). Refractory disease is defined as lack of response or relapse within 60 days of last treatment. * Phase 1, Part 2 (SC Administration): Patients with MM whose disease meets the following criteria: a. Progression on or after at…

Use the source registry for the full inclusion and exclusion criteria before discussing referral or enrolment.