Glenmark Pharmaceuticals to Initiate Clinical Study for GBR 1342, Second Investigational New Drug from Immuno-Oncology Portfolio

Glenmark Pharmaceuticals, a global pharmaceutical company, announced that USFDA cleared the company’s Investigational New Drug (IND) application to initiate a Phase 1 study of GBR 1342, a humanized, bispecific monoclonal antibody (bsAb) being studied for the treatment of multiple myeloma in patients who have received prior therapies. GBR 1342 is designed to activate the patient’s immune system by redirecting immune cells towards tumor tissue, which may lead to targeted destruction of tumors. It is based on Glenmark’s proprietary BEAT® (Bispecific Engagement by Antibodies based on the T cell receptor) technology platform.

The first-in-human Phase 1 study of GBR 1342 will enroll subjects with multiple myeloma who have exhausted available therapies. The study is being conducted in two parts: the first part is a dose escalation to determine the safety profile and maximum tolerable dose; the second is an expansion cohort treated at maximum tolerable dose to further investigate the safety profile and preliminary efficacy of GBR 1342.

GBR 1342 simultaneously engages CD38, a proven target in multiple myeloma, and the CD3 molecule on T cells. GBR 1342 is also being considered for the treatment of other malignancies.

About Glenmark’s Immuno-Oncology Pipeline and BEAT® Technology
Glenmark’s oncology pipeline currently includes four candidates being studied in a wide range of tumor types. These include three bispecific monoclonal antibodies (bsAbs). GBR 1302, a HER2xCD3 bsAb, is being studied for the treatment of HER2+ cancers; GBR 1342, a CD38XCD3 bsAb, is being studied for the treatment of multiple myeloma and potentially other malignancies; and GBR 1372, an EGFRxCD3 bsAb, has demonstrated activity against EGFR expressing cells from resistant and refractory tumors. Glenmark’s expanding oncology portfolio of biologics will include GBR 8383, an antibody-based agonist targeting OX40R, which is being studied for the treatment of multiple tumor types.

BEAT® (Bispecific Engagement by Antibodies based on the T cell receptor) is Glenmark’s proprietary technology for the production of bsAbs. With BEAT® technology, Glenmark’s scientists have been able to overcome past production obstacles encountered with bsAbs and efficiently assembled and manufactured these molecules with low immunogenicity potential on an industrial scale. Preclinically, BEAT® bsAbs have demonstrated the potential for safer, more controlled and localized activity in comparison to the broader systemic responses seen with many currently approved therapeutic antibodies. Additionally, BEAT® bsAbs structural similarity to naturally-occurring antibodies may result in an increased half-life compared to currently approved bispecific therapeutic antibodies and a decreased likelihood the body will identify the BEAT® bsAb as a foreign substance. GBR 1302, GBR 1342 and GBR 1372 are based on BEAT® technology.