European Commission has granted conditional marketing approval of Lynozyfic (linvoseltamab) to treat adults with relapsed and refractory multiple myeloma.
European Commission (EC) has granted conditional marketing approval of Lynozyfic (linvoseltamab) from Regeneron to treat adults with relapsed and refractory (R/R) multiple myeloma (MM).
LYNOZYFIC is indicated as monotherapy for the treatment of adult patients with relapsed and refractory multiple myeloma who have received at least 3 prior therapies, including a proteasome inhibitor, an immunomodulatory agent, and an anti CD38 monoclonal antibody, and have demonstrated disease progression on the last therapy.
Lynozyfic is a bispecific antibody designed to bridge B-cell maturation antigen (BCMA) on MM cells with CD3-expressing T cells to facilitate T-cell activation and cancer-cell killing.
Lynozyfic is the first BCMAxCD3 therapy approved that can be dosed every four weeks due to a response-adapted regimen if a very good partial response (VGPR) or better is achieved following completion of at least 24 weeks of therapy. The regimen includes monitoring in close proximity of a qualified treatment center for safety during the step-up dosing period (one 24-hour period after the first step-up dose and another 24-hour period after the second step-up dose, if certain safety events occur).
The EC approval is based on results from the pivotal LINKER-MM1 trial (n=117 at the 200 mg dose of Lynozyfic), which demonstrated robust and durable responses in patients with R/R MM. Results showed a 71% objective response rate (ORR), with 50% of patients achieving a complete response (CR) or better, as determined by an independent review committee. The minimal residual disease (MRD) negativity rate in patients achieving a CR or stringent CR was 41% (24 of 58 patients; 95% confidence interval [CI]: 29 to 55). The median duration of response (DOR) was 29 months (95% CI: 19 to not estimable).
The most frequent adverse reactions were musculoskeletal pain (52%), cytokine release syndrome (CRS; 46%), neutropenia (43%), cough (42%), diarrhea (39%), anemia (38%), fatigue (36%), pneumonia (32%), and upper respiratory tract infection (30%). The majority of CRS cases were Grade 1 (35%) or Grade 2 (10%), and there was one case of Grade 3 CRS (0.9%) and no cases of ≥Grade 4 CRS. The median time to first CRS onset was 11 hours (range: -1.1 to 184 hours), with the median time to resolution within 1 day (16 hours; range: 1-96 hours). Grade 3 immune effector cell-associated neurotoxicity syndrome (ICANS; 2.6%) and infections that were Grade 3 or 4 (36%) or fatal (4%) also occurred.
In the U.S., the FDA accepted for review the Biologics License Application for linvoseltamab in adults with R/R MM with a target action date of July 10, 2025.