Roche  announced that the phase III CELESTIMO study evaluating Lunsumio® (mosunetuzumab) in combination with lenalidomide versus MabThera®/Rituxan® (rituximab) plus lenalidomide in people with relapsed or refractory (R/R) follicular lymphoma (FL) who have received at least one prior line of treatment met its primary endpoint. Results demonstrated a statistically significant and clinically meaningful improvement in progression-free survival (PFS). Overall survival (OS) data were immature at the time of interim analysis. The safety profile of the Lunsumio and lenalidomide combination was consistent with the known profiles of the individual study medicines, with no new safety signals identified. Data from the study will be submitted to health authorities and presented at an upcoming medical meeting.

“People living with relapsed or refractory follicular lymphoma need treatment options that provide meaningful clinical benefit and minimal disruptions to everyday care,” said Levi Garraway, MD, PhD, Roche’s Chief Medical Officer and Head of Global Product Development.  “The CELESTIMO results indicate that a two-drug outpatient Lunsumio regimen may offer these patients an effective new option earlier in their treatment journey."

CELESTIMO is a confirmatory study required to convert the accelerated approval/conditional marketing authorisation of Lunsumio monotherapy for third-line or later (3L+) FL to full approval, as well as to secure an indication in second-line or later (2L+) FL.

Lunsumio is part of Roche’s industry-leading CD20xCD3 bispecific antibody programme. It is designed with the unique needs and preferences of patients in mind, offering the possibility of outpatient treatment and flexibility between intravenous and subcutaneous administration routes. Lunsumio is already approved for people with 3L+ FL in 60 countries worldwide and has been used to treat over 3,800 patients.¹

With the longest follow-up data of any bispecific antibody in lymphoma and a broad clinical development programme spanning multiple disease settings, including both FL and diffuse large B-cell lymphoma (DLBCL), Lunsumio is helping redefine care across B-cell malignancies. The U.S. Food and Drug Administration (FDA) recently accepted the supplemental Biologics License Application (sBLA) for Lunsumio in combination with Polivy® (polatuzumab vedotin) for 2L+ DLBCL based on the SUNMO study, and results from CELESTIMO support continued expansion of Lunsumio and lenalidomide into earlier FL treatment, with the phase III MorningLyte study ongoing in first-line FL.