QSAM Biosciences Inc. announced that the United States Patent & Trademark Office has granted a key patent protecting how CycloSam is formulated and prepared, namely by using a nonradioactive kit that can be delivered and stored local to the administration site and provides for high purity in an efficient, facile and reproducible process at lower costs.  This patent covers both formulation and preparation of CycloSam in the U.S. with DOTMP kit formulations for radioisotope delivery targeting bone tumors, as well the high-dosage use of the radiopharmaceutical to perform bone marrow ablations.  The scope of this patent is fairly broad in that it not only protects the use of QSAM's primary radioisotope, Samarium-153 (Sm-153), but also several other radioactive materials used in commercialized radiopharmaceuticals such as Lutetium-177 (Lu-177) and Yttrium-90 (Y-90) in conjunction with the chelating agent DOTMP. This patent provides the potential to add additional radiopharmaceuticals to QSAM's pipeline. The kit itself is designed to provide convenient and reproducible preparation of the drug with better delivery and higher purity for each specific formulation.