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An Open-label, Randomized, Phase 3 Study of Linvoseltamab (REGN5458; Anti- BCMA x Anti-CD3 Bispecific Antibody) Versus the Combination of Elotuzumab, Pomalidomide, and Dexamethasone (EPd), in Patients With Relapsed/Refractory Multiple Myeloma (LINKER-MM3)


Description

This study is researching an experimental drug called linvoseltamab, also called REGN5458. Linvoseltamab has previously been studied by itself (without other cancer drugs) in participants who had advanced multiple myeloma that returned and needed to be treated again after many other therapies had failed. These participants were no longer benefiting from standard medications and had no good treatment options. In that study, some participants who were treated with linvoseltamab had improvement of their myeloma (shrinkage of their tumors), including some participants who had complete responses (that is, the treatment got rid of all evidence of myeloma in their bodies). This study is focused on participants who have multiple myeloma that has returned or needs to be treated again after one to four prior treatments and have standard cancer treatment options available to them. The aim of this study is to see how safe and effective linvoseltamab is compared to a combination of three cancer d

Trial Eligibility

Key Inclusion Criteria: 1. Age 18 years or older (or legal adult age in the country) at the time of the screening visit. 2. Eastern Cooperative Oncology Group (ECOG) performance status ≤1. Patients with ECOG 2 solely due to local symptoms of myeloma (eg. pain) may be allowed after discussion with the Medical Monitor. 3. Received at least 1 and no more than 4 prior lines of anti-neoplastic MM therapies, including lenalidomide and a proteasome inhibitor and demonstrated disease progression on or after the last therapy as defined by the 2016 IMWG criteria. Participants who have received only 1 line of prior line of antimyeloma therapy must be lenalidomide refractory, as described in the protocol. Note: Participants in Israel also must have previously received a CD38 antibody. Participants in the EU and the UK must have previously received 2 to 4 prior lines of therapy, including a CD38 antibody. 4. Patients must have measurable disease for response assessment as per the 2016 IMWG response assessment criteria, as described in the protocol 5. Adequate hematologic, hepatic, renal and cardiac function, as well as evidence of adequate bone marrow reserves 6. Life expectancy of at least 6 months Key Exclusion Criteria: 1. Diagnosis of plasma cell leukemia, amyloidosis, Waldenström macroglobulinemia, or POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, monoclonal protein, and skin changes). 2. Prior treatment with elotuzumab and/or pomalidomide 3. Participants with known MM brain lesions or meningeal involvement 4. Treatment with any systemic anti-cancer therapy within 5 half-lives or within 28 days before first administration of study drug, whichever is shorter 5. History of allogeneic stem cell transplantation within 6 months, or autologous stem cell transplantation within 12 weeks of the start of study treatment. Participants who have received an allogeneic transplant must be off all immunosuppressive medications for 6 weeks without signs of graft-versus-host disease. Steroids at doses equivalent to suppletion doses may be acceptable. 6. Prior treatment with B-cell maturation antigen (BCMA) directed immunotherapies Note: BCMA antibody-drug conjugates are allowed. 7. History of progressive multifocal leukoencephalopathy (PML), known or suspected PML, or history of a neurocognitive condition or central nervous system (CNS) movement disorder. 8. Any infection requiring hospitalization or treatment with IV anti-infectives within 2 weeks of first administration of study drug 9. Uncontrolled infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); or another uncontrolled infection, as defined in the protocol. NOTE: Other protocol defined inclusion/exclusion criteria apply

Study Info

Organization

Regeneron Pharmaceuticals


Primary Outcome

Progression Free Survival (PFS) per International Myeloma Working Group (IMWG) response criteria determined by Independent Review Committee (IRC) in CD38 antibody exposed participants


Outcome Timeframe Up to approximatively 5 years

NCTID NCT05730036

Phases PHASE3

Primary Purpose TREATMENT

Start Date 2023-09-18

Completion Date 2032-12-26

Enrollment Target 380

Interventions

DRUG Linvoseltamab

DRUG Elotuzumab

DRUG Pomalidomide

DRUG Dexamethasone

Locations Recruiting

UCLA

United States, California, Los Angeles


University of Florida

United States, Florida, Gainesville


University of Kentucky

United States, Kentucky, Lexington


Norton Cancer Institute - St. Matthews Campus

United States, Kentucky, Louisville


Stony Brook University Hospital

United States, New York, Stony Brook


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