The Department of Health and Human Services, specifically the National Institutes of Health (NIH), is seeking procurement for Cellex® Photopheresis System Procedural Kits. This presolicitation aims to acquire in-vitro diagnostic substances that are crucial for therapeutic procedures involving photopheresis, which is significant in treating certain medical conditions. The performance of this contract will take place in Bethesda, Maryland, and interested vendors can reach out to Shasheshe Goolsby at shasheshe.goolsby@nih.gov or by phone at 301-827-4879 for further details. The timeline for this opportunity and additional funding specifics will be outlined in forthcoming announcements.