title: Regulatory watch: FDA guidance on co-developing investigational drugs.
mesh_terms: D000818:Animals; D017277:Drug Approval / Q000331:legislation & jurisprudence*; D055808:Drug Discovery / Q000331:legislation & jurisprudence* / Q000639:trends; D015507:Drugs, Investigational / Q000627:therapeutic use; D006801:Humans; D014481:United States; D014486:United States Food and Drug Administration / Q000331:legislation & jurisprudence* / Q000639:trends
chemical_list: D015507:Drugs, Investigational