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A Study to Compare Linvoseltamab and Daratumumab Treatment in High-Risk Smoldering Multiple Myeloma (HR-SMM)

A Phase 3, Randomized, Open-Label Study of Linvoseltamab Versus Daratumumab in Participants With Smoldering Multiple Myeloma at High Risk of Developing Multiple Myeloma

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07393282
Acronym
LINKER-SMM2
Enrollment
270
Registered
2026-02-06
Start date
2026-05-21
Completion date
2033-07-27
Last updated
2026-09-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

High Risk Smoldering Multiple Myeloma (HR-SMM)

Keywords

Linvoseltamab, Multiple Myeloma (MM), B Cell Maturation Antigen (BCMA), Bispecific antibody, Smoldering Multiple Myeloma (SMM), Smoldering Myeloma, HR-SMM, Linozyfic, Darzalex

Brief summary

This study is researching an experimental drug called linvoseltamab (also called "study drug") compared to another drug called daratumumab, in participants with Smoldering Multiple Myeloma (SMM), who are at a High Risk (HR) of developing active multiple myeloma. The aim of this study is to find out whether linvoseltamab is better than daratumumab in delaying the development of MM. The study is looking at several other research questions, including: * What side effects may happen from taking the study drug * How much study drug is in the blood at different times * Whether the body makes antibodies against the study drug (which could make the drug less effective or could lead to side effects)

Interventions

DRUGLinvoseltamab

Administered per the protocol

DRUGDaratumumab

Administered per the protocol

Sponsors

Regeneron Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: 1. Eastern Cooperative Oncology Group performance status score ≤1 2. SMM diagnosis per IMWG criteria as defined in the protocol 3. Meets HR-SMM criteria by 1 of the risk models as defined in the protocol Key

Exclusion criteria

1. Evidence of myeloma-defining events attributable to the underlying plasma cell dyscrasia, as defined in the protocol 2. Diagnosis of systemic light chain amyloidosis, Waldenström macroglobulinemia (lymphoplasmacytic lymphoma), plasma cell leukemia, or soft tissue plasmacytoma 3. History of neurodegenerative condition, progressive multifocal leukoencephalopathy, or Central Nervous System (CNS) movement disorder 4. History of a seizure within the 12 months of randomization 5. Prior exposure to any approved or investigational treatments directed against a clonal plasma cell disorder (including but not limited to conventional chemotherapies, radiotherapy, immunomodulatory drugs, proteasome inhibitors, anti-CD38 antibodies). Ongoing treatment with other monoclonal antibodies (eg, infliximab, rituximab) or other treatments likely to interfere with study procedures or results, as described in the protocol. NOTE: Other protocol defined inclusion/

Design outcomes

Primary

MeasureTime frame
Clinical Progression Free Survival (PFS) per International Myeloma Working Group (IMWG) criteriaUp to 5 years
Biochemical PFS per IMWG criteriaUp to 5 years

Secondary

MeasureTime frameDescription
Achievement of Minimal Residual Disease (MRD) Complete Response (CR) at 10^-5 per IMWG criteriaUp to 3 years
Time to deathUp to 9 years
Overall Response Rate (ORR) of Partial Response or better (≥PR) per IMWG criteriaUp to 3 years
Best Overall Response (BOR) per IMWG criteriaUp to 3 years
Achievement of MRD-negativityUp to 3 years
Sustained MRD-negativityUp to 3 years
Duration of MRD-negative CRUp to 3 years
Duration Of Response (DOR) per IMWG criteriaUp to 5 years
Occurrence of Treatment-Emergent Adverse Events (TEAEs)Up to 3 years
Severity of TEAEsUp to 3 years
Occurrence of Serious Adverse Events (SAEs)Up to 3 years
Change from baseline score in European Organization for Research and Treatment of Cancer Quality of Life Core Questionnaire 30 (EORTC QLQ-C30) Global Health Status (GHS)/Quality of Life (QoL) scaleUp to 5 yearsThe EORTC QLQ-C30 is a 30-item validated questionnaire developed to measure patient-reported QoL using 1 GHS/QoL scale, 5 functioning scales (physical, role, emotional, cognitive and social) and 9 symptom scales / items (fatigue, nausea/vomiting, pain, dyspnea, insomnia, appetite loss, constipation, diarrhea and financial difficulties) among patients with cancer. For the functioning scales and global health status / QoL, scores range from 1 = "very poor" to 5 = "excellent" with higher scores indicating better functioning and positive changes from baseline indicate improvement.
Change from baseline score in EORTC QLQ-C30 physical functioning scaleUp to 5 years
Change from baseline score in EORTC QLQ-C30 role functioning scaleUp to 5 years
Change from baseline score in EORTC QLQ-C30 emotional functioning scaleUp to 5 years
Change from baseline score in EORTC QLQ-C30 pain scaleUp to 5 yearsThe EORTC QLQ-C30 is a 30-item validated questionnaire developed to measure patient-reported QoL using 1 GHS/QoL scale, 5 functioning scales (physical, role, emotional, cognitive and social) and 9 symptom scales / items (fatigue, nausea/vomiting, pain, dyspnea, insomnia, appetite loss, constipation, diarrhea and financial difficulties) among patients with cancer. For the 9 symptom scales, scores range from 1 = "not at all" to 9 = "very much" higher scores indicate higher symptom burden and negative changes from baseline indicate improvement.
Change from baseline score in EORTC QLQ-C30 fatigue scaleUp to 5 years
Change from baseline score in EORTC IL478 future perspectives scaleUp to 5 yearsEORTC IL478 corresponds to the EORTC QLQ-Multiple Myeloma Module 20 (MY20) future Perspective Scale. This is a is a self-administered instrument to assess QoL in persons with MM. For the future perspective 3 items are analyzed. A high score for an item represents a high level of symptomatic problem.
Change from baseline score in EuroQoL-5 Dimensions 5-Level Questionnaire Visual Analogue Scale (EQ-5D-5L VAS )Up to 5 yearsThe EQ-5D-5L consists of the EQ-5D descriptive system and the EQ visual analogue scale (EQ VAS). The EQ-5D-5L descriptive system comprises the following 5 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". The EQ VAS records the participant's self-rated health on a vertical visual analogue scale where the endpoints are labeled "Best imaginable health state" and "Worst imaginable health state".
Functional Assessment of Cancer Therapy (FACIT)- Item Global Population 5 (GP5) responsesUp to 5 yearsFACIT-Item GP5 will be used to assess the patient-reported impact of treatment toxicity that uses a single item "I am bothered by side effects of treatment" on a 5-point scale (0 = not at all, 1 = a little bit, 2 = somewhat, 3 = quite a bit, 4 = very much).
Change from baseline in FACIT- Item GP5 scoreUp to 5 years
Concentrations of linvoseltamab in serumUp to 5 years
Occurrence of Anti-Drug Antibodies (ADAs) to linvoseltamab in serumUp to 5 years
Magnitude of ADA to linvoseltamab in serumUp to 5 years

Countries

Japan, South Korea, United States

Contacts

CONTACTClinical Trials Administrator
clinicaltrials@regeneron.com844-734-6643
STUDY_DIRECTORClinical Trial Management

Regeneron Pharmaceuticals

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 16, 2026