Rituximab-Pvvr

NEW YORK, NY, USA I February 12, 2025 I Pfizer Inc. (NYSE: PFE) announced today that the U.S. Food and Drug Administration (FDA) has approved the supplemental Biologics License Application (sBLA) for ADCETRIS ® (brentuximab vedotin) in combination with lenalidomide and a rituximab product for the treatment of adult patients with relapsed or refractory large B-cell lymphoma (LBCL), including diffuse large B-cell lymphoma (DLBCL) not otherwise specified (NOS), DLBCL arising from indolent lymphoma, or high-grade B-cell lymphoma (HGBL), after two or more lines of systemic therapy who are not eligible for autologous hematopoietic stem cell transplantation (auto-HSCT) or chimeric antigen receptor (CAR) T-cell therapy. “Each year, more than 3,500 patients in the U.S. with this aggressive form of non-Hodgkin lymphoma experience treatment failure or relapse after two prior lines of therapy,” said Roger Dansey, M.D., Chief Oncology Officer, Pfizer. “Today’s approval further reinforces the important role of ADCETRIS as an existing standard of care with overall survival improvement shown for certain types of lymphomas, and now allows physicians to have an option beyond chemotherapy or CAR-Ts for patients with relapsed/refractory large B-cell lymphoma.” The approval is based on efficacy and safety data from the Phase 3 ECHELON-3 study, which demonstrated a statistically significant and clinically meaningful improvement in overall survival (OS) in patients with relapsed/refractory DLBCL who received ADCETRIS in combination with lenalidomide and rituximab. The study included patients who were heavily pre-treated, some of whom had received prior CAR-T therapy, and survival benefit was observed irrespective of CD30 expression. “Patients with large B-cell lymphoma can face a challenging journey, with too many patients enduring multiple rounds of chemotherapy and even CAR-T therapy with limited success,” said principal investigator Dr. Craig Portell, Associate Professor, University of Virginia. “For patients who have previously faced setbacks with other therapies, ADCETRIS provides a new therapeutic option with outpatient administration and proven safety and efficacy.” LBCL is a type of non-Hodgkin lymphoma (NHL), that affects immune cells called B lymphocytes, a type of white blood cell crucial to the body’s immune system. DLBCL is the most common, aggressive and difficult-to-treat form of the disease. More than 25,000 cases of DLBCL are diagnosed each year in the United States, accounting for more than 25% of all lymphoma cases. Up to 40% of patients relapse or have refractory disease after frontline treatment, and more than 3,500 patients a year fail two prior lines of therapy and require third-line therapy. Despite recent treatment advances including bispecifics and CAR-T therapy, there remains a high unmet need for patients who are not eligible for these treatments or whose disease returns following treatment with these therapies. The ECHELON-3 study showed that the ADCETRIS combination reduced patients’ risk of death by 37% compared to placebo in combination with lenalidomide and rituximab (HR 0.63 [95% CI: 0.445-0.891] p=0.0085). The OS benefit was consistent across levels of CD30 expression. Positive outcomes were also observed in key secondary endpoints, including overall response rate (ORR)​ and progression-free survival (PFS). The safety profile of ADCETRIS in ECHELON-3 was consistent with its known safety profile as presented in the U.S. prescribing information. The most frequently reported treatment-emergent adverse events (TEAEs) Grade 3 or higher for the ADCETRIS versus placebo arms were: neutropenia (43% vs 28%), thrombocytopenia (25% vs 19%) and anemia (22% vs 21%). Peripheral sensory neuropathy was infrequent and low grade for each arm with Grade 3 events of 4% vs 0%. Detailed data from ECHELON-3 were published in JCO Oncology Practice on January 7, 2025 and presented at the 2024 American Society of Clinical Oncology (ASCO) Annual Meeting. About ECHELON-3 ECHELON-3 is an ongoing, randomized, double-blind, multicenter Phase 3 study evaluating ADCETRIS plus lenalidomide and rituximab versus lenalidomide and rituximab plus placebo in adult patients with relapsed/refractory or transformed DLBCL, regardless of CD30 expression, who have received two or more prior lines of therapy and are ineligible for stem cell transplant (HSCT) or CAR-T therapy. The study also includes patients with hard-to-treat subtypes with poorer outcomes including double hit/triple hit lymphoma and patients with transformed disease. Patients may be ineligible to receive either HSCT or CAR-T therapy due to co-morbidities or financial, geographic, insurance, manufacturing issues. In this global study, 230 patients were randomized across North America, Europe and Asia-Pacific. The primary endpoint is OS in the intent to treat population, with key secondary endpoints of PFS and ORR as assessed by investigator. Other secondary endpoints include complete response rate, duration of response, safety and tolerability. About Large B-cell Lymphoma LBCL accounts for about 1/3 of cases of NHL, a type of cancer that starts in the lymphocytes and affects immune cells called B lymphocytes. LBCL occurs most often in older people, with a median age of 67 at diagnosis. About 60-70% of people have advanced-stage disease when diagnosed, and up to 40% have disease that relapses or becomes refractory to initial therapy, and more than 3,500 patients a year fail two prior lines of therapy and require third-line therapy. DLBCL is the most common and aggressive type of LBCL and is difficult to treat. More than 25,000 cases of DLBCL are diagnosed each year in the United States, accounting for more than 25% of all lymphoma cases. DLBCL can develop spontaneously or as a result of diseases such as chronic lymphocytic lymphoma/small lymphocytic lymphoma, follicular lymphoma, or marginal zone lymphoma. About ADCETRIS More than 55,000 patients have been treated with ADCETRIS in the U.S. since its first U.S. approval in 2011, and more than 140,000 patients have been treated with ADCETRIS globally. ADCETRIS is an antibody-drug conjugate (ADC) comprised of a CD30-directed monoclonal antibody attached by a protease-cleavable linker to a microtubule disrupting agent, monomethyl auristatin E (MMAE), utilizing Pfizer’s proprietary technology. The ADC employs a linker system that is designed to be stable in the bloodstream but to release MMAE upon internalization into CD30-positive tumor cells. ADCETRIS is approved in eight indications in the U.S.: Pfizer and Takeda jointly develop ADCETRIS. Under the terms of the collaboration agreement, Pfizer has U.S. and Canadian commercialization rights, and Takeda has rights to commercialize ADCETRIS in the rest of the world. Pfizer and Takeda are funding joint development costs for ADCETRIS on a 50:50 basis, except in Japan where Takeda is solely responsible for development costs. About Pfizer Oncology At Pfizer Oncology, we are at the forefront of a new era in cancer care. Our industry-leading portfolio and extensive pipeline includes three core mechanisms of action to attack cancer from multiple angles, including small molecules, antibody-drug conjugates (ADCs), and bispecific antibodies, including other immune-oncology biologics. We are focused on delivering transformative therapies in some of the world’s most common cancers, including breast cancer, genitourinary cancer, hematology-oncology, and thoracic cancers, which includes lung cancer. Driven by science, we are committed to accelerating breakthroughs to help people with cancer live better and longer lives. About Pfizer: Breakthroughs That Change Patients’ Lives At Pfizer, we apply science and our global resources to bring therapies to people that extend and significantly improve their lives. We strive to set the standard for quality, safety, and value in the discovery, development, and manufacture of health care products, including innovative medicines and vaccines. 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