Thymic lymphoid depletion with decreased thymus weight and lymphocytes; lymphoid hyperplasia with lymph node enlargement
“Pexidartinib-related observations on the lymph/hematopoietic compartments include lymphoid depletion of the thymus with decreased thymus weight and lymphocyte counts and lymphoid hyperplasia with lymph node enlargement and increases in neutrophils and large unstained cells (LUC).”
✓ VerifiedFDA multi-discipline review, p. 40Source ↗
Biodistribution & persistence
Highest exposure in uveal tract, liver, pancreas, Harderian gland and eye; still present in uveal tract at 336 h
“Tissues with the highest exposure (Cmax) to pexidartinib were the uveal tract, liver, pancreas, Harderian gland, and the entire eye. At the last sampling time of 336 hours post-dose, pexidartinib was still present in the eye including the uveal tract.”
✓ VerifiedFDA multi-discipline review, p. 47Source ↗
Modality-specific risk
Hepatotoxicity
“The liver is a major target organ clinically, with frequent elevations in transaminases, including serious ones (refer to Section 8.3 of the review for details).”
✓ VerifiedFDA multi-discipline review, p. 40Source ↗