Patent 11033542 was granted and assigned to CritiTech on June, 2021 by the United States Patent and Trademark Office.
Disclosed herein are methods for treating solid tumors by direct injection into the tumors of chemotherapeutic particles, methods for inhibiting tumor metastasis by administering chemotherapeutic particles to a subject having a tumor, and compositions that include chemotherapeutic particles, small amounts of a polysorbate, and a carrier.