Core Insights - SON-1010 is being evaluated as a combination therapy with trabectedin (Yondelis) for advanced soft tissue sarcoma, showing potential for immune mechanism synergies and enhanced progression-free survival [1][2] - The initial safety review indicated no unexpected toxicities in early dosing, allowing for full enrollment of up to 18 patients [1][2] - SON-1010 monotherapy demonstrated clinical benefit in 83% of patients at the maximum tolerated dose, including a confirmed partial response in a patient with clear cell sarcoma [1][2] Company Overview - Sonnet BioTherapeutics Holdings, Inc. is a clinical-stage biotechnology company focused on developing targeted immunotherapeutic drugs [1][8] - The company utilizes the Fully Human Albumin Binding (FHAB) platform to enhance the safety and efficacy of its drug candidates, including SON-1010 [6][8] - SON-1010 is designed to deliver interleukin-12 to local tumor tissue, potentially converting 'cold' tumors to 'hot' tumors and stimulating immune responses [6][8] Clinical Trial Details - The Phase 1 SB101 trial aims to evaluate the safety, tolerability, pharmacokinetics, and pharmacodynamics of SON-1010, with a maximum tolerated dose established at 1200 ng/kg [7] - The trial includes an expansion cohort for patients with unresectable, metastatic leiomyosarcoma or liposarcoma, with a goal to assess the combination therapy's effectiveness [3][5] - The study has treated 7 patients so far, with plans to enroll up to 18 patients in total [3][7] Market Opportunity - The global market opportunity for trabectedin is estimated at $2.1 billion, highlighting significant unmet medical needs in the treatment of sarcomas [1][5] - The combination of SON-1010 and trabectedin is positioned for potential advancement into larger Phase 2 studies, which could establish a new treatment paradigm for soft tissue sarcomas [5][9]
Sonnet BioTherapeutics Successfully Completes First Safety Review of SON-1010 in Combination with Trabectedin in Certain Sarcomas