On March 24, 2022 Protara Therapeutics, Inc. (Nasdaq: TARA), a clinical-stage company developing transformative therapies for the treatment of cancer and rare diseases, reported that the Company has dosed the first patient in ADVANCED-1, its Phase 1 clinical trial evaluating TARA-002, an investigational cell-based immunopotentiator, for the treatment of non-muscle invasive bladder cancer (NMIBC) (Press release, Protara Therapeutics, MAR 24, 2022, View Source [SID1234610899]).
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"NMIBC is one of the most recurrent and difficult to treat cancers with very limited treatment options," said Jesse Shefferman, Chief Executive Officer of Protara Therapeutics. "We are thrilled to have dosed the first patient in our Phase 1 study in NMIBC and look forward to exploring TARA-002’s full potential in this pressing area of high unmet need."
ADVANCED-1 is a Phase 1 dose-finding, open-label trial (NCT05085977) evaluating TARA-002 in treatment-naïve and treatment-experienced NMIBC patients with high-grade carcinoma in situ (CIS) and high-grade papillary tumors (Ta). In the initial dose escalation phase of the trial, patients will receive six weekly intravesical doses of TARA-002. The primary objective of the trial is to evaluate the safety, tolerability and preliminary signs of anti-tumor activity of TARA-002, with the goal of establishing a recommended dose for a planned Phase 2 clinical trial.
"While bladder cancer is the 6th most common cancer in the United States today, with NMIBC representing approximately 80% of diagnoses, treatment options for these patients remain limited," said Edward M. Messing, M.D., Professor of Urology, Oncology and Pathology at the University of Rochester, and a principal investigator for the study. "There is an urgent need for new therapeutic interventions for these patients, as there continues to be an increase in recurrence, progression and an escalated number of patients needing cystectomies."
About TARA-002
TARA-002 is an investigational cell therapy in development for the treatment of NMIBC and LMs for which it has been granted Rare Pediatric Disease Designation by the U.S. Food and Drug Administration. TARA-002 was developed from the same master cell bank of genetically distinct group A Streptococcus pyogenes as OK-432, a broad immunopotentiator marketed as Picibanil in Japan and Taiwan by Chugai Pharmaceutical Co., Ltd. Protara has successfully demonstrated manufacturing comparability between TARA-002 and OK-432.
When TARA-002 is administered, it is hypothesized that innate and adaptive immune cells within the cyst or tumor are activated and produce a strong immune cascade. Neutrophils, monocytes and lymphocytes infiltrate the abnormal cells and various cytokines, including interleukins IL-2, IL-6, IL-8, IL-10, IL-12, interferon (IFN)-gamma, tumor necrosis factor (TNF)-alpha, granulocyte colony-stimulating factor, and granulocyte-macrophage colony-stimulating factor are secreted by immune cells to induce a strong local inflammatory reaction and destroy the abnormal cells.
About Non-Muscle Invasive Bladder Cancer
Bladder cancer is the 6th most common cancer in the United States, with NMIBC representing approximately 80% of bladder cancer diagnoses. Approximately 65,000 patients are diagnosed with NMIBC in the United States each year. NMIBC is cancer found in the tissue that lines the inner surface of the bladder that has not spread into the bladder muscle.