Sponsor Decision

This study is focused on participants with Newly Diagnosed Multiple Myeloma (NDMM) who are eligible for high dose chemotherapy followed by Autologous Stem Cell Transplantation (ASCT).

This study is evaluating a drug called linvoseltamab in combination with standard therapies for multiple myeloma called bortezomib (V) and lenalidomide (R). This combination is abbreviated as Linvo-VR.

The aim of this study is to compare how well Linvo-VR, with and without ASCT, treats myeloma to how well the current standard of care regimen for NDMM treats myeloma. That current standard of care regimen includes the drugs daratumumab (D), bortezomib (V), lenalidomide (R), and dexamethasone (d). This combination is referred to as DVRd. The study is also evaluating if Linvo-VR treats myeloma well enough that ASCT is no longer needed with the first myeloma treatments.

The study is looking at several other research questions, including:

• What side effects may happen from taking linvoseltamab
• How much linvoseltamab is in the blood at different times
• Whether the body makes antibodies against the linvoseltamab (which could make the drug less effective or could lead to side effects)

Key Inclusion Criteria:

1. Participants must have a histologically or cytologically confirmed diagnosis of multiple myeloma, which requires the presence of clonal bone marrow plasma cells ≥10% or biopsy-proven bony or extramedullary plasmacytoma, and at least one other criteria as defined by the SLiM (>=60%, Light chains I/U >10, Magnetic resonance imaging >1 focal lesion) CRAB (Calcium elevation, Renal insufficiency, Anemia, Bone disease) criteria
2. Participants must have measurable disease, as defined in the protocol
3. Participants must be considered eligible for high-dose chemotherapy (melphalan) and ASCT per local standard guidelines
4. Eastern Cooperative Oncology Group (ECOG) performance status ≤2
5. Must be willing to defer ASCT

Key Exclusion Criteria:

1. Any prior therapy for Monoclonal Gammopathy of Undetermined Significance (MGUS), Monoclonal Gammopathy of Renal Significance (MGRS), Smoldering Multiple Myeloma (SMM), or MM, with the exception of those defined in the protocol
2. Participants who have received or are receiving any investigational agent or cell therapy with known or suspected activity against MM (or another plasma cell disorder), or those whose AEs due to agents administered earlier (such as radiation and/or corticosteroids) have not recovered to a severity of grade 0 or grade 1
3. Participants with non-secretory MM, diagnosis of plasma cell leukemia (>20% circulating plasma cells), symptomatic amyloidosis (including myeloma associated amyloidosis), Waldenström macroglobulinemia (lymphoplasmacytic lymphoma), or POEMS syndrome (Polyneuropathy, Organomegaly, Endocrinopathy, Monoclonal protein, and Skin changes).
4. Participants who have known Central Nervous System (CNS) or meningeal involvement with MM or known or suspected Progressive Multifocal Leukoencephalopathy (PML), a history of a neurocognitive condition or CNS movement disorder, OR a history of seizure, Transient Ischemic Attack (TIA), or stroke within 12 months prior to study randomization
5. Another malignancy besides MM that is progressive or has required treatment in the 3 years preceding randomization with the exceptions defined in the protocol

NOTE: Other protocol defined inclusion/exclusion criteria apply

All Individual Patient Data (IPD) that underlie publicly available results will be considered for sharing.

When Regeneron has:

• received marketing authorization from major health authorities (e.g., FDA, European Medicines Agency (EMA), Pharmaceuticals and Medical Devices Agency (PMDA), etc.) for the product and indication or has globally discontinued development of the product for all indications on or after April 2020 and has no plans for future development
• made the study results publicly available (e.g., scientific publication, scientific conference, clinical trial registry)
• the legal authority to share the data, and
• ensured the ability to protect participant privacy

Qualified researchers can submit a proposal for access to individual patient or aggregate level data from a Regeneron-sponsored clinical trial through Vivli. Regeneron's Independent Research Request Evaluation Criteria can be found at: https://www.regeneron.com/sites/default/files/Regeneron-External-Data-Sharing-Policy-and-Independent-Research-Request-Evaluation-Criteria.pdf