The Department of Health and Human Services, specifically the National Institutes of Health (NIH), is seeking qualified sources for a potential contract focused on reagent generation for bioanalytical method development related to biologics. The primary objective is to obtain information on the availability and capability of companies to generate and deliver reagents, including anti-drug antibodies, that support the quantification of novel biologic drugs in various biological matrices. This initiative is crucial for advancing drug development processes and improving success rates in preclinical stages, with the Therapeutic Development Branch (TDB) at NIH playing a pivotal role in moving therapeutic candidates through the drug development pipeline. Interested parties must submit their capability statements by November 8, 2024, to Nick Niefeld at nick.niefeld@nih.gov, referencing sources sought notice number 75N95025R00007.