September 18, 2023
SPS 2023 -- The new ICH E14/S7B Q&A guideline introduces the concept of "double negative" (negative hERG and negative in vivo QTc) nonclinical data, which can be used along with negative Phase I clinical QTc data to substitute for a clinical thorough QT study in specific cases (Q&As 5.1 and 6.1).