This is a sources sought notice for market research to inform a future procurement strategy for XOFIGO Isotope (Radium Ra-223) for the Michael E. DeBakey VA Medical Center in Houston, Texas. The requirement is for a quantity of one 6ML injection of the isotope. The government is requesting detailed capability and pricing information from potential vendors, with a specific focus on small business status and authorized distribution. Responses are due by 3:00 PM Central Standard Time on March 17, 2026. This is not a solicitation and does not constitute a commitment by the government.