Core Insights - Protara Therapeutics, Inc. is set to present updated interim data from the Phase 2 ADVANCED-2 trial of TARA-002 for BCG-Unresponsive non-muscle invasive bladder cancer (NMIBC) at the ASCO Genitourinary Cancers Symposium in February 2026 [1][4] Company Overview - Protara Therapeutics is a clinical-stage biotechnology company focused on developing transformative therapies for cancer and rare diseases, with TARA-002 as its lead candidate for NMIBC and lymphatic malformations [8] - TARA-002 is an investigational cell therapy derived from genetically distinct group A Streptococcus pyogenes, which has been granted Rare Pediatric Disease Designation by the FDA [5][8] Clinical Trial Details - The ADVANCED-2 trial (NCT05951179) is an open-label Phase 2 study assessing TARA-002 in NMIBC patients, specifically those who are BCG-Unresponsive or BCG-Naïve [3] - Approximately 25 patients will be evaluated for updated safety and efficacy data in the upcoming presentation [2] - The trial includes an induction course of six weekly intravesical instillations of TARA-002, followed by a maintenance course [3] Presentation Information - The poster presentation titled "ADVANCED-2: Interim efficacy and safety data in BCG-Unresponsive participants with high-grade non-muscle invasive bladder cancer" will take place on February 27, 2026 [4] - Another poster titled "Interim safety and tolerability of TARA-002 in patients with BCG-Naïve and Unresponsive high-grade non-muscle invasive bladder cancer in ADVANCED-2" will also be presented on the same day [5] Mechanism of Action - TARA-002 acts as a first-in-class TLR2/NOD2 agonist, activating both innate and adaptive immune pathways within the bladder wall, leading to a pro-inflammatory response and direct tumor cell death [6] Market Context - NMIBC accounts for approximately 80% of bladder cancer diagnoses in the U.S., with around 65,000 new cases diagnosed annually [8]

Core Viewpoint - Protara Therapeutics is a clinical stage biotechnology company focused on developing transformative therapies for rare cancer diseases, with a strong emphasis on oncology and rare diseases [2]. Oncology Focus - The company has two late-stage development programs targeting non-muscle invasive bladder cancer, specifically in BCG-Unresponsive and BCG-Naïve patients [2][4]. - The ADVANCED-2 study is a significant registrational study for BCG-Unresponsive patients with carcinoma in situ, with expectations to complete enrollment before the end of 2026 [4]. Rare Disease Programs - Protara is developing two products in clinical development for rare diseases: - IV Choline Chloride, a phospholipid substrate replacement therapy for patients on parenteral support, currently in Phase III with a pharmacokinetic-based endpoint [3]. - TARA-002, targeting lymphatic malformations for macrocystic and mixed cystic lesions [3]. Company Ambition - Despite its size, Protara demonstrates significant ambition through its diverse portfolio of late-stage development programs in both oncology and rare diseases [4].

Core Insights - Protara Therapeutics is on track to report interim results from approximately 25 six-month evaluable patients in the ADVANCED-2 trial in Q1 2026, focusing on BCG-Unresponsive patients [1][5] - The company has received Breakthrough Therapy and Fast Track designations for TARA-002 in lymphatic malformations (LMs), with a regulatory update expected in the first half of 2026 [1][4] - The first patient has been dosed in the THRIVE-3 registrational trial of IV Choline Chloride, with interim results anticipated in the second half of 2026 [1][7] - Protara completed a public offering of approximately $86 million, extending its cash runway into 2028 [1][8] Protara's Pipeline and Progress - The CEO emphasized the company's commitment to delivering transformative therapies for cancer and rare diseases, highlighting the promising clinical data for TARA-002 in non-muscle invasive bladder cancer (NMIBC) [2] - TARA-002 has shown meaningful and durable activity in BCG-Naïve NMIBC patients, with plans to provide an interim update on the registrational BCG-Unresponsive trial later this quarter [2][5] - Positive results from the Phase 2 STARBORN-1 trial of TARA-002 in LMs have led to FDA designations, with a regulatory update on the path to registration expected in H1 2026 [2][4] Clinical Trials and Manufacturing - Protara is evaluating subcutaneous dosing combined with intravesical dosing for TARA-002 in NMIBC patients, as well as exploring combination treatments [5] - TARA-002 has been selected for the FDA's CMC Development and Readiness Pilot Program, aimed at facilitating manufacturing development for therapies with compressed clinical timelines [6] Financial Update - The recent public offering of approximately $86 million is expected to support Protara's operations and extend its financial runway into 2028 [8]

Core Insights - Protara Therapeutics, Inc. has initiated patient dosing in its Phase 3 THRIVE-3 clinical trial for intravenous Choline Chloride, aimed at patients on long-term parenteral support [1][2] - The company believes that IV Choline Chloride could be the first FDA-approved IV choline therapy for patients dependent on parenteral support, addressing a significant unmet medical need [2][4] Company Overview - Protara Therapeutics is a clinical-stage biotechnology company focused on developing transformative therapies for cancer and rare diseases, with its lead candidate being TARA-002 for non-muscle invasive bladder cancer and lymphatic malformations [5][6] - The company is also developing IV Choline Chloride as a phospholipid substrate replacement therapy for patients unable to meet their choline needs through oral or enteral nutrition [4][5] Clinical Trial Details - The THRIVE-3 trial is a seamless Phase 2b/3 study designed to evaluate the efficacy and safety of low and high doses of IV Choline Chloride in patients receiving long-term parenteral support [2][3] - Approximately 105 additional patients will be enrolled in a 24-week Phase 3 double-blinded, randomized, placebo-controlled trial, following an 8-week Phase 2b trial involving 24 patients [2][3] Medical Context - Choline deficiency affects 78% of patients on parenteral support, leading to serious health issues, yet there are currently no approved IV choline products available [2][4] - IV Choline Chloride has been granted Fast Track and Orphan Drug Designation by the FDA, highlighting its potential significance in treating choline deficiency in this patient population [4][5]

Company Overview - Protara Therapeutics, Inc. is a clinical-stage biotechnology company focused on developing transformative therapies for cancer and rare diseases [3] - The company's lead candidate is TARA-002, an investigational cell-based therapy aimed at treating non-muscle invasive bladder cancer (NMIBC) and lymphatic malformations (LMs) [3] - Protara is conducting an ongoing Phase 2 trial for TARA-002 in NMIBC patients with carcinoma in situ (CIS) who are unresponsive or naïve to Bacillus Calmette-Guérin treatment, as well as a Phase 2 trial in pediatric patients with LMs [3] Upcoming Events - Management will present at the 44th Annual J.P. Morgan Healthcare Conference on January 14, 2026, at 3:45 pm PT in San Francisco [1] - A live webcast of the presentation will be available on the company's website, with an archive accessible for a limited time after the event [2] Additional Information - Protara is also developing IV Choline Chloride, an investigational phospholipid substrate replacement for patients on parenteral nutrition who cannot meet their choline needs through oral or enteral routes [3]

Core Insights - Protara Therapeutics, Inc. has received Breakthrough Therapy and Fast Track designations from the FDA for TARA-002, an investigational cell-based therapy aimed at treating pediatric patients with lymphatic malformations (LMs) [1][2] - TARA-002 has been selected for the FDA's Chemistry, Manufacturing, and Controls Development and Readiness Pilot Program, which supports expedited clinical development and earlier patient access [1][4] Company Overview - Protara Therapeutics is a clinical-stage biotechnology company focused on developing transformative therapies for cancer and rare diseases, with TARA-002 as its lead candidate [7] - The company is also developing IV Choline Chloride for patients on parenteral nutrition [8] Product Details - TARA-002 is a genetically distinct strain of streptococcus pyogenes, inactivated to retain immune-stimulating properties, and has been in clinical use in Japan for 30 years [5] - The therapy has previously received Rare Pediatric Disease designation and has shown significant clinical success in a Phase 2 trial involving over 500 patients [5] Disease Context - Lymphatic malformations are rare congenital conditions affecting lymphatic vessels, often diagnosed in early childhood, with serious complications including airway obstruction and recurrent infections [6]

Core Insights - Protara Therapeutics, Inc. is hosting a conference call and live webcast on December 3, 2025, to discuss new data from an interim analysis of the Phase 2 ADVANCED-2 trial of TARA-002 for non-muscle invasive bladder cancer [1] - The data will be presented at the 26th Annual Meeting of the Society of Urologic Oncology, along with updates on FDA feedback regarding the registrational path for TARA-002 [1] Company Overview - Protara Therapeutics is a clinical-stage biotechnology company focused on developing transformative therapies for cancer and rare diseases [3] - The lead candidate, TARA-002, is an investigational cell-based therapy aimed at treating non-muscle invasive bladder cancer and lymphatic malformations [3] - Protara is conducting a Phase 2 trial for TARA-002 in NMIBC patients who are unresponsive or naïve to Bacillus Calmette-Guérin treatment, as well as a Phase 2 trial in pediatric patients with lymphatic malformations [3] - The company is also developing IV Choline Chloride, a phospholipid substrate replacement for patients on parenteral nutrition [3]

Core Insights - Protara Therapeutics, Inc. is hosting a conference call on November 19, 2025, to discuss new data from the interim analysis of the Phase 2 STARBORN-1 trial for TARA-002, a cell-based therapy for pediatric patients with lymphatic malformations [1][2] Group 1: Company Overview - Protara Therapeutics is a clinical-stage biotechnology company focused on developing transformative therapies for cancer and rare diseases [5] - The company's lead candidate, TARA-002, is in development for non-muscle invasive bladder cancer and lymphatic malformations [5] - TARA-002 has received Rare Pediatric Disease designation from the U.S. FDA for the treatment of lymphatic malformations [3] Group 2: Product Details - TARA-002 is a genetically distinct strain of streptococcus pyogenes that retains immune-stimulating properties while being inactivated [3] - The therapy was developed from the same master cell banks as OK-432, which has been the standard of care in Japan for 30 years [3] - A large Phase 2 trial of OK-432 demonstrated significant clinical success in over 500 patients with lymphatic malformations [3] Group 3: Lymphatic Malformations - Lymphatic malformations are rare congenital conditions affecting lymphatic vessels, often diagnosed in early childhood [4] - More than 50% of lymphatic malformations are detected at birth, with 90% diagnosed before the age of three [4] - Common complications include airway obstruction, intralesional bleeding, and recurrent infections, leading to significant morbidity [4]

Core Insights - Protara Therapeutics, Inc. announced interim data from the Phase 2 ADVANCED-2 trial of TARA-002 for treating non-muscle invasive bladder cancer (NMIBC) [1][2] - The trial data will be presented at the 26th Annual Meeting of the Society of Urologic Oncology from December 2 to December 5, 2025 [1] - TARA-002 is an investigational cell therapy that has received Rare Pediatric Disease Designation from the FDA [3][6] Company Overview - Protara Therapeutics is a clinical-stage biotechnology company focused on developing therapies for cancer and rare diseases [6] - The company's lead candidate, TARA-002, is being evaluated in ongoing Phase 2 trials for NMIBC and lymphatic malformations [6] - Protara is also developing IV Choline Chloride for patients on parenteral nutrition [6] Trial Details - The ADVANCED-2 trial includes BCG-Naïve patients with NMIBC, specifically those with carcinoma in situ or CIS [2] - The trial involves an induction course of six weekly intravesical instillations of TARA-002, followed by maintenance treatments [2] - The upcoming poster presentation will include updated safety and efficacy data from 31 enrolled patients [1][3] Disease Context - NMIBC accounts for approximately 80% of bladder cancer diagnoses in the U.S., with around 65,000 new cases each year [5] - Bladder cancer is the sixth most common cancer in the United States [5] Mechanism of Action - TARA-002 is hypothesized to activate immune cells in the tumor, leading to a pro-inflammatory response and the release of cytokines [4] - The therapy aims to directly kill tumor cells and enhance the antitumor immune response through immunogenic cell death [4]

Core Insights - Protara Therapeutics reported significant advancements in its clinical programs, particularly in the development of TARA-002 for non-muscle invasive bladder cancer (NMIBC) and lymphatic malformations (LMs) [2][5][10] - The company is on track to report interim results from its ADVANCED-2 trial in NMIBC patients in Q1 2026 and expects to provide updates on its STARBORN-1 trial for pediatric LMs in Q4 2025 [6][7] Clinical Development Updates - TARA-002 is being evaluated in the ADVANCED-2 trial for NMIBC, with interim results expected from approximately 25 BCG-Unresponsive patients in early 2026 [6][7] - The STARBORN-1 trial for TARA-002 in pediatric patients with LMs is progressing, with an interim update anticipated in Q4 2025 [5][6] - The THRIVE-3 trial for IV Choline Chloride is set to dose its first patient by the end of 2025, focusing on patients dependent on parenteral support [6][7] Financial Performance - As of September 30, 2025, Protara had approximately $134 million in cash and investments, expected to fund operations into mid-2027 [6][15] - Research and development expenses increased to $9.6 million in Q3 2025 from $8.1 million in the same period of 2024, primarily due to startup costs for the THRIVE-3 trial [15][23] - The company reported a net loss of $13.3 million, or $0.31 per share, for Q3 2025, compared to a net loss of $11.2 million, or $0.50 per share, in Q3 2024 [15][23] Corporate Recognition - Protara was recognized as one of BioSpace's Best Places to Work in November 2025, highlighting its strong culture and commitment to innovation [8]