CDISC-Gloss – A biological product that is highly similar to the reference product notwithstanding minor differences in clinically inactive components. This requires that there are no clinically meaningful differences between the biological product and the reference product in terms of the safety, purity, and potency of the product (see section 351(i)(2) of the PHS Act). [after FDA, Guidance for Industry: Quality Considerations in Demonstrating Biosimilarity of a Therapeutic Protein Product to a Reference Product]