Oxford BioTherapeutics Announces Partner Boehringer Ingelheim Received U.S. FDA Fast Track Designation for BI 764532 for the Potential Treatment of Advanced or Metastatic Large-Cell Neuroendocrine Carcinoma of the Lung

Oxford BioTherapeutics Announces Partner Boehringer Ingelheim Received U.S. FDA Fast Track Designation for BI 764532 for the Potential Treatment of Advanced or Metastatic Large-Cell Neuroendocrine Carcinoma of the Lung

• BI 764532 is an investigational T-cell engager that redirects T cells towards cancer cells expressing the DLL3 protein
• DLL3 antigen was discovered using OBT’s proprietary OGAP® drug discovery platform
• This is the third Fast Track designation for BI 764532

Oxford, UK, San Jose, Calif., 29 November 2023 – Oxford BioTherapeutics (OBT), a clinical stage oncology company with a pipeline of immuno-oncology and Antibody Drug Conjugate (ADC)-based therapies, today announces that the U.S. Food and Drug Administration (FDA) has granted Fast Track designation to BI 764532 for the potential treatment of advanced or metastatic large-cell neuroendocrine carcinoma of the lung (LCNEC-Lung) expressing DLL3 whose disease has progressed following at least one prior line of treatment including platinum-based chemotherapy.

BI 764532 is an investigational DLL3/CD3 IgG-like T-cell engager for potential treatment of patients with LCNEC-Lung that is being developed by Boehringer Ingelheim. The discovery of BI 764532 (OBT620) was enabled through a successful partnership initiated in 2013, leveraging OBT’s proprietary OGAP® drug discovery platform for identification of the DLL3 antigen and Boehringer Ingelheim’s longstanding expertise in oncology and development of biotherapeutics.

As of November 2023, the FDA granted Fast Track designation to BI 764532 for the potential treatment of extensive-stage small cell lung cancer (SCLC) whose disease has progressed following at least two prior lines of treatment including platinum-based chemotherapy, and of advanced or metastatic extrapulmonary neuroendocrine carcinomas (epNEC) whose disease has progressed following at least one prior line of treatment including platinum-based chemotherapy.

BI 764532 was also granted Orphan Drug designation by the FDA for the treatment of SCLC, and is currently being investigated in a Phase 2 study, ‘DAREON™-5’ (NCT05882058), in patients with relapsed/refractory extensive-stage SCLC and other relapsed/refractory NEC.

Christian Rohlff, Chief Executive Officer of OBT, commented: “We are delighted about the clinical development to help address unmet needs for people living with small cell lung cancer and other neuroendocrine carcinomas. This is an important milestone for our teams and exciting news for the community.”

FDA’s Fast Track designation is designed to facilitate the development and expedite the review of new drugs that are intended to treat serious or life-threatening diseases and that demonstrate the potential to address unmet medical needs.