On January 18, 2022 Celularity Inc. (Nasdaq: CELU) ("Celularity"), a clinical-stage biotechnology company developing placental-derived off-the-shelf allogeneic cell therapies, reported the U.S. Food and Drug Administration (FDA) has granted Fast Track Designation for its genetically modified cryopreserved human placental hematopoietic stem cell-derived natural killer (NK) cell therapy, CYNK-101, which is being developed in combination with standard chemotherapy, trastuzumab and pembrolizumab in patients in first-line locally advanced unresectable or metastatic HER2/neu positive gastric or gastroesophageal junction (G/GEJ) adenocarcinoma (Press release, Celularity, JAN 18, 2022, View Source [SID1234605527]). CYNK-101 is an investigational genetically modified NK cell therapy designed to synergize with approved antibody therapeutics through enhanced antibody-dependent cellular cytotoxicity (ADCC).
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Robert Hariri, M.D., Ph.D., Founder, Chairperson and Chief Executive Officer of Celularity, said, "We are extremely excited to receive this fast track designation and the support from the FDA for our investigational genetically modified NK cell therapy in the first-line setting of G/GEJ cancers. CYNK-101 is built on the foundation of our unique placental-derived source material, which as compared to other cell sources, has naturally enhanced proliferative potential (or "stemness"), that has been shown to be a determinant of persistence and efficacy potential. Using novel genetic engineering, we have enhanced the ability of CYNK-101 cells to synergize with approved antibodies and provide a novel and potentially non-cross resistant therapy to improve the lives of patients with G/GEJ cancers as well as a broad range of other indications."
"The addition of immune-based therapy of blocking PD-1 with a checkpoint inhibitor (pembrolizumab) to the prior standard of care (chemotherapy and traztuzumab) has recently been shown to be of benefit in patients with first-line HER2/neu positive unresectable G/GEJ cancer," added Andrew Pecora, M.D., President of Celularity. While overall response rates in first-line G/GEJ treated with the triple combination of chemotherapy, traztuzumab and pembrolizumab were significantly greater with the addition of pembrolizumab (74.4% vs 51.9%; p=0.000006; Keynote-811 trial of dual PD-1 and HER2 blockade in HER2-positive gastric cancer; Janjigian Y et al., Nature 600, 727-730 (2021), complete response rates remained modest, however (11.3%). "Our recently accepted IND enables the assessment to possibly further improve outcomes in G/GEJ treated with triple combination therapy by adding CYNK-101 cells, a potentially non-cross resistant therapy (enhanced ADCC, direct NK cell tumor killing and help of T cell function and memory) after initially cytoreducing the tumor mass and potentially diminishing resistance in the tumor microenvironment with combined chemotherapy, traztuzumab and pembrolizumab "induction" followed by reinduction and maintenance with CYNK-101 cells in combination with traztuzumab and pembrolizumab."
About Fast Track Designation
Fast Track Designation is an FDA process designed to facilitate the development and expedite the review of new drugs that are intended to treat a serious condition and have the potential to address unmet medical needs. The purpose of Fast Track designation is to expedite the process of getting important new drugs to patients. The designation may offer frequent interactions with the FDA review team on the product’s development and the product may be eligible for rolling review and priority review if certain criteria are met.
About Gastric Cancer
Gastric cancer is the fifth most common cancer worldwide(1). Despite recent improvements in treatment quality and options, advanced gastric cancer remains one of the hardest to cure cancers, with a median overall survival (OS) of 10–12 months and a five-year OS of approximately 5–20%. In May 2021, the U.S. FDA granted accelerated approval to pembrolizumab in combination with trastuzumab, fluoropyrimidine- and platinum-containing chemotherapy for the first-line treatment of patients with locally advanced unresectable or metastatic HER2+ G/GEJ cancers (2)
REFERENCES
Bray F, Ferlay J, Soerjomataram I, et al. Global cancer statistics 2018: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin. 2018;68 (6):394–424. doi:10.3322/caac.21492.
FDA grants accelerated approval to pembrolizumab for HER2-positive gastric cancer. Access here: View Source Accessed January 17, 2022.
About CYNK-001
Celularity’s lead therapeutic program based on its placental-derived unmodified NK cell type is CYNK-001, an allogeneic unmodified NK cell being developed as a treatment for hematologic malignancies, solid tumors, and infectious diseases. CYNK-001 is a cryopreserved allogeneic off-the-shelf cell therapy enriched for CD56+/CD3- NK cells expanded from human placental CD34+ cells. The safety and efficacy of CYNK-001 have not been established, and CYNK-001 has not been approved for any use by the U.S. Food and Drug Administration or any other analogous regulatory authority.