A Study of STRO-004 in Adults With Refractory/Recurrent Metastatic Cancer

This is a study to evaluate the safety and preliminary anti-tumor activity of STRO-004 in adults with metastatic cancer. This study includes 3 parts: * Part 1A is a dose escalation study of STRO-004 monotherapy in selected tumor types known to commonly express Tissue Factor (TF). * Part 1B is a cohort expansion in 1 or more types of cancer to further evaluate a STRO-004 monotherapy dose, determine the best dose for use in later phases, and examine anti-tumor activity. * Part 1C is a dose escalation of STRO-004 combined with pembrolizumab to determine tolerability and preliminary anti-tumor activity of both drugs used together.

NCT Number	NCT07227168
Lead Sponsor	Sutro Biopharma, Inc.
Conditions	Head and Neck Squamous Cell Carcinoma HNSCC, Non-Small Cell Lung Cancer NSCLC, Esophageal Cancer, Gastric Cancer, Colorectal Cancer, Pancreatic Ductal Adenocarcinoma (PDAC), Cervical Cancer, Endometrial Cancer +1 more
Enrollment	200 participants
Start Date	2025-11-07
Primary Completion	2027-12 (estimated)
Study Completion	2028-04 (estimated)
Updated on ClinicalTrials.gov	2026-08-06