The Department of Health and Human Services, specifically the Food and Drug Administration (FDA), is seeking vendors to provide a Biorelevant Characterization System for evaluating subcutaneous drug formulations. This system is intended to enhance the capabilities of the Center for Drug Evaluation and Research (CDER) by enabling the investigation of drug release performance under simulated physiological conditions, utilizing integrated sensors and automated operation for unattended assessments. The initiative underscores the FDA's commitment to ensuring the quality, safety, and efficacy of pharmaceutical products while promoting innovation and domestic manufacturing. Interested parties, particularly small businesses under NAICS Code 334516, are encouraged to submit their qualifications by contacting Erika Crawford at erika.crawford@fda.hhs.gov or Maria Finan at maria.finan@fda.hhs.gov, as this is a Sources Sought Notice for market research purposes only, with no contract to be awarded at this stage.