Further to the ICH Management Committee’s endorsement of the S1B(R1) IWG Concept Paper in March 2024, the S1B(R1) IWG was established to share experiences regarding ongoing implementation efforts for the new S1B(R1) weight of evidence (WoE) approach for carcinogenicity assessments, to develop potential best practices, and to provide counsel to parties regarding implementation issues.
Further information can be found in the S1B(R1) IWG Concept Paper.