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Multiple Myeloma

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Dexamethasone

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Elotuzumab

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REGN5458 will be administered by intravenous (IV) infusion

Linvoseltamab

Elotuzumab will be administered by IV infusion

Pomalidomide capsules will administered by mouth (PO)

Dexamethasone tablets/capsules will be administered PO and/or by IV infusion

Clinical Trials Administrator

Clinical Trial Management

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 drugs: elotuzumab, pomalidomide and dexamethasone, (called EPd) in participants who have returned after having received prior treatment that included lenalidomide, a proteosome inhibitor, and (for participants in some countries) a cluster of differentiation 38 (CD38) antibody. Half of the participants in this study will get linvoseltamab, and the other half will get EPd.

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

* How long participants benefit from receiving linvoseltamab compared with EPd
* How many participants treated with linvoseltamab or EPd have improvement of their multiple myeloma and by how much
* What side effects happen from taking linvoseltamab compared to EPd
* How long participants live while receiving treatment or after treatment with linvoseltamab compared to EPd
* If there is any improvement in pain after treatment with linvoseltamab compared to EPd

A Trial to Learn How Well Linvoseltamab Works Compared to the Combination of Elotuzumab, Pomalidomide and Dexamethasone for Adult Participants With Relapsed/Refractory Multiple Myeloma

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)

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

The BPI-SF is a validated, self-administered questionnaire designed to measure a participant's perceived level of pain. The BPI-SF Item 3 uses a numeric rating scale to assess pain severity and pain interference in the past 24 hours. The numeric rating scale ranges from 0 (no pain) to 10 (worst imaginable pain), where higher scores indicate greater intensity of pain.

Defined by at least a 2-point reduction from baseline in the BPI-SF Item 3 without an increase in analgesic use using the modified Analgesic Quantification Algorithm (AQA).

The EORTC-QLQ-C30 is a 30-item subject self-report questionnaire composed of both multi-item and single scales, including global health status/quality of life, functional Scales (physical, role, emotional, cognitive, and social), symptom scales (fatigue, nausea and vomiting, and pain), and 6 single items (dyspnea, insomnia, appetite loss, constipation, diarrhea, and financial difficulties). Participants rate items on a 4-point scale, with 1 as "not at all" and 4 as "very much."

The EORTC QLQ-MY20 is a self -administered instrument to assess QoL in persons with MM. This 20-item questionnaire measures the following domains: symptom scales, including disease symptoms (6 items) and symptoms related to side effects of treatment (10 items); function scale and future perspective (3 items); and body image (1 item). A high score represents a high level of symptoms or problems.

The PGIS is a single 1-item questionnaire designed to assess participant's overall impression of disease severity at a given point in time by using a 4-point Likert scale that ranges from (1) = "none (no symptoms)" to (4) = "severe".

The global anchor, PGIS will be used for interpretation of EORTC QLQ-C30, EORTC QLQ-MY20, and BPI-SF.

The PGIC is a single-item questionnaire designed to assess the participant's overall sense of whether there has been a change since starting treatment as rated on a 5-point Likert scale anchored by (1) "much better" to (5) "much worse", with (4) = "no change".

The global anchor, PGIC will be used for interpretation of EORTC QLQ-C30, EORTC QLQ-MY20, and BPI-SF.

The EQ-5D-5L consists of EQ-5D descriptive system comprises five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems.

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
A Trial to Learn How Well Linvoseltamab Works Compared to the Combination of Elotuzumab, Pomalidomide and Dexamethasone for Adult Participants With Relapsed/Refractory Multiple Myeloma	NCT05730036	Relapsed Refrac...	Linvoseltamab Elotuzumab Pomalidomide Dexamethasone	18 Years -	Regeneron Pharmaceuticals
A Trial to Learn How Well Linvoseltamab Works Compared to the Combination of Elotuzumab, Pomalidomide and Dexamethasone for Adult Participants With Relapsed/Refractory Multiple Myeloma	NCT05730036	Relapsed Refrac...	Linvoseltamab Elotuzumab Pomalidomide Dexamethasone	18 Years -	Regeneron Pharmaceuticals

Spots Global Cancer Trial Database for relapsed refractory multiple myeloma (rrmm)