Decreased cellularity of gut-associated lymphoid tissue and mesenteric lymph nodes in rats
“In the 3‐month rat study, ovarian atrophy, alterations in the estrous cycle and decreased cellularity in gut‐associated lymphoid tissue (GALT) in females, and decreased cellularity of mesenteric lymph nodes in males and females at 5 mg/kg/day was observed.”
✓ VerifiedFDA multi-discipline review, p. 61Source ↗
Biodistribution & persistence
Highest in uveal tract, liver, adrenal, spleen, pituitary; binds melanin in pigmented ocular tissues
“Excluding excreta, the highest Cmax levels of radiolabeled [14C] nirogacestat were uveal tract, liver, adrenal gland, spleen, and pituitary gland. Radiolabeled [14C] nirogacestat exhibited an affinity for pigmented ocular tissues containing melanin.”
✓ VerifiedFDA multi-discipline review, p. 60Source ↗
“Regarding ovarian dysfunction in humans, ovarian degeneration/necrosis/atrophy and oocyte mineralization occurred in animals administered nirogacestat and was consistent with Notch regulation of mammalian folliculogenesis (Vanorny and Mayo, 2014).”
✓ VerifiedFDA multi-discipline review, p. 49Source ↗