In drug discovery, what is the name of the optimization stage that a confirmed hit proceeds to?

Answer

Hit-to-Lead (H2L) optimization

After a compound is confirmed as a hit in pharmaceutical HTS, it moves into Hit-to-Lead optimization, where medicinal chemists modify its structure to improve potency and pharmacokinetic properties.

In drug discovery, what is the name of the optimization stage that a confirmed hit proceeds to?
technologymethodscreeninglaboratoryassay