Biopharma Transcript

OS Therapies Inc OSTX

NYSE · Phase 2 · oncology · vaccine · EDGAR · Updated Nov 4, 2026

OS Therapies Inc (NYSE: OSTX) is an oncology drug developer. Its lead program, OST-HER2 (OST31-164), is in Phase 2 for Recurrent, fully resected pulmonary metastatic osteosarcoma. Its next catalyst on record is OST-HER2: Submit clinical module of BLA after Type B meeting with FDA (Q4 2026).

Upcoming catalysts

No catalyst is dated to the next 30 days or to an FDA action date.

Next further out: OST-HER2 — Submit clinical module of BLA after Type B meeting with FDA (Q4 2026). 5 catalysts on record beyond the next 30 days; subscribers see each with its filing sentence.

Pipeline

ProgramIndicationModalityStage
OST-HER2 (OST31-164)Recurrent resected pulmonary metastatic osteosarcoma (Phase IIb complete, fully enrolled; rolling BLA/conditional MAA in progress)vaccinePhase 2
OST-tADC (tunable antibody-drug conjugate platform)Solid tumorsantibodyPre-clinical
ADXS-503 / ADXS-504 (Lm platform assets acquired from Ayala)—vaccinePre-clinical

For subscribers

Other phase 2 oncology companies