The Department of Defense, through the Army Medical Research Acquisition Activity, intends to award a sole-source contract to Cytel Inc. for their East Horizon Software Platform, which is essential for fulfilling the biostatistical software needs of the Office of Regulated Activities within the Defense Health Agency. This procurement is based on market research indicating that Cytel Inc. is the only vendor capable of providing the required software, thereby eliminating the possibility of competitive bids. The contract is significant for supporting the research and development efforts of the Defense Health Agency, ensuring that critical biostatistical functions are met efficiently. Interested vendors may challenge this sole-source decision by submitting a capability statement to Matthew Gembe at matthew.w.gembe.civ@health.mil by May 22, 2025, at 3 PM Eastern Time.