tusamitamab

PARIS, France I December 21, 2023 I Sanofi is discontinuing the global clinical development program of tusamitamab ravtansine. The decision is based on the outcome of a prespecified interim analysis of the Phase 3 CARMEN-LC03 trial evaluating tusamitamab ravtansine as monotherapy compared to docetaxel in previously treated patients with metastatic non-squamous (NSq) non-small cell lung cancer (NSCLC) whose tumors express high levels of carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5). An Independent Data Monitoring Committee (IDMC) found that tusamitamab ravtansine as a monotherapy did not meet its dual primary endpoint of progression-free survival (PFS) compared to docetaxel. Despite an improved overall survival (OS) trend, termination of the program was based on non-improvement in PFS at the final analysis. Tusamitamab ravtansine had a similar safety profile as previously presented with a lower incidence of various important clinical categories of adverse events versus docetaxel. Trial participants will have the option to stay on their current therapy if they are benefitting, as deemed by their provider, or to transition to an appropriate standard-of-care therapy. Sanofi will continue exploring the potential of antibody tusamitamab-based ADCs and CEACAM5 research in several types of cancer. Dietmar Berger Chief Medical Officer and Head of Development “Our team is grateful to the patients, families and healthcare professionals involved in the tusamitamab ravtansine development program. Although the results are not what we hoped for, our research and work to advance potentially transformative therapies in areas of high unmet need for people living with cancer will not stop. We will continue to explore the potential of CEACAM5 as a biomarker in cancer types where it is highly expressed.” CEACAM5 is a member of the CEACAM family of 12 glycoproteins and may drive cell adhesion and migration, as well as inhibit apoptosis, and may be overexpressed in many different cancer types. About the CARMEN-LC03 Trial CARMEN-LC03 was a randomized, open-label Phase 3 study evaluating tusamitamab ravtansine as monotherapy compared to docetaxel in patients with metastatic NSq NSCLC and high CEACAM5 expression. The dual primary endpoints of CARMEN-LC03 were progression-free survival and overall survival. Secondary endpoints included objective response rate, health-related quality of life, safety and duration of response. About Sanofi We are an innovative global healthcare company, driven by one purpose: we chase the miracles of science to improve people’s lives. Our team, across some 100 countries, is dedicated to transforming the practice of medicine by working to turn the impossible into the possible. We provide potentially life-changing treatment options and life-saving vaccine protection to millions of people globally, while putting sustainability and social responsibility at the center of our ambitions. SOURCE: Sanofi

Sanofi is ending development of tusamitamab ravtansine after the antibody-drug conjugate (ADC) failed to meet the primary endpoint of a Phase III study for lung cancer. The news deals an early setback to R&D head Houman Ashrafian, who only took over the role in September, as well as the company’s ambitions in oncology.The CARMEN-LC03 trial enrolled patients with metastatic non-squamous non-small-cell lung cancer whose tumours express high levels of CEACAM5, the target of tusamitamab ravtansine. Sanofi said Thursday that an independent data monitoring committee found that the study missed its dual primary endpoint of improving progression-free survival versus docetaxel.The drugmaker added that although there was a trend for improved overall survival - the trial’s other dual primary goal - the study was terminated based on non-improvement in PFS at the final analysis. Chief medical officer Dietmar Berger remarked “although the results are not what we hoped for… We will continue to explore the potential of CEACAM5 as a biomarker in cancer types where it is highly expressed,” with the company adding that it will also continue work on antibody tusamitamab-based ADCs.Tusamitamab ravtansine, also known as SAR408701, was developed through a partnership with ImmunoGen, although Sanofi was granted an exclusive license to the ADC in 2017. According to the French company’s pipeline, tusamitamab ravtansine was also being investigated in Phase II studies, both as a monotherapy and as part of combination regimens, in gastric cancer and earlier stages of lung cancer.