Skip to content

A Phase 1/2 Study of Linvoseltamab in Patients with Relapsed or Refractory Systemic Light Chain Amyloidosis

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-507809-34-00
Acronym
R5458-ONC-2274
Enrollment
27
Registered
2024-06-03
Start date
2024-08-07
Completion date
Unknown
Last updated
2025-09-24

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

Conditions

Relapsed or Refractory Systemic Light Chain Amyloidosis

Brief summary

Phase 1: Incidence of dose-limiting toxicity (DLTs), Phase 2: Achievement of hematologic complete response (CR) as determined by the Independent Review Committee (IRC)

Detailed description

Achievement of hematologic CR, as determined by the IRC - Phase 1, Achievement of hematologic very good partial response (VGPR) or better response (CR + VGPR), as determined by the IRC, Achievement of overall hematologic response (PR or better), as determined by the IRC, Time to initial hematologic response, Time to best hematologic response, Duration of hematologic response (ie, best response, VGPR or better, overall response), as determined by the IRC, Hematologic progression-free survival (PFS), Incidence of death, Incidence of treatment-emergent adverse events (TEAEs), Severity of TEAEs, Incidence of serious adverse events (SAEs), Severity of SAEs, Incidence of adverse events of special interest (AESIs), Severity of AESIs, Achievement of overall hematologic response (PR or better), as determined by the IRC in full dose regimen 1 vs 2 - Phase 2, Incidence of TEAEs in full dose regimen 1 vs 2 - Phase 2, Severity of TEAEs in full dose regimen 1 vs 2 - Phase 2, Incidence of SAEs in full dose regimen 1 vs 2 - Phase 2, Severity of SAEs in full dose regimen 1 vs 2 - Phase 2, Incidence of AESIs in full dose regimen 1 vs 2 - Phase 2, Severity of AESIs in full dose regimen 1 vs 2 - Phase 2, Time from treatment initiation to hematologic disease progression as determined by the IRC, Time from treatment initiation to cardiac deterioration, as determined by the IRC, Time from treatment initiation to kidney deterioration as determined by the IRC, Time from treatment initiation to death as determined by the IRC, Time from initiation of treatment to date of death from any cause, Achievement of renal response in participants with renal involvement at baseline, as determined by IRC, Achievement of cardiac response in participants with cardiac involvement at baseline, as determined by IRC, Time to first renal response in participants with renal involvement at baseline, Time to first cardiac response in participants with cardiac involvement at baseline, Linvoseltamab concentration in serum over time, Incidence of anti-drug antibodies (ADAs) to linvoseltamab over time, Titers of ADAs to linvoseltamab over time

Interventions

Sponsors

Regeneron Pharmaceuticals Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Phase 1: Incidence of dose-limiting toxicity (DLTs), Phase 2: Achievement of hematologic complete response (CR) as determined by the Independent Review Committee (IRC)

Secondary

MeasureTime frame
Achievement of hematologic CR, as determined by the IRC - Phase 1, Achievement of hematologic very good partial response (VGPR) or better response (CR + VGPR), as determined by the IRC, Achievement of overall hematologic response (PR or better), as determined by the IRC, Time to initial hematologic response, Time to best hematologic response, Duration of hematologic response (ie, best response, VGPR or better, overall response), as determined by the IRC, Hematologic progression-free survival (PFS), Incidence of death, Incidence of treatment-emergent adverse events (TEAEs), Severity of TEAEs, Incidence of serious adverse events (SAEs), Severity of SAEs, Incidence of adverse events of special interest (AESIs), Severity of AESIs, Achievement of overall hematologic response (PR or better), as determined by the IRC in full dose regimen 1 vs 2 - Phase 2, Incidence of TEAEs in full dose regimen 1 vs 2 - Phase 2, Severity of TEAEs in full dose regimen 1 vs 2 - Phase 2, Incidence of SAEs in ful

Countries

Greece, Spain

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026