This is a combined synopsis/solicitation for a sole-source procurement by the NIH for Virti Platform licenses and technical support. The contract is intended for Virti Inc. of Cleveland, OH, to provide 100 licenses and support for a 12-month period of performance. The justification states the Virti software has unique, required capabilities for an ongoing study, and changing platforms would jeopardize data integrity. This notice of intent is not a request for competitive quotations. Interested vendors capable of providing the specified items may submit a quotation to establish their bona-fide capabilities.