Decreased lymphocytes in spleen, thymus and mesenteric lymph nodes in 39-week monkey study (non-adverse)
“Baxdrostat was well tolerated despite dehydration (increased incidence of thinness and skin tenting), reduced body weight gain, and histological changes in adrenals, kidneys, spleen, thymus, and mesenteric lymph nodes (decreased lymphocytes).”
✓ VerifiedFDA pharmacology/toxicology review, p. 19Source ↗
Biodistribution & persistence
Wide distribution, highest in adrenal, liver, cecum and kidney; low brain/spinal cord; melanin binding
“Tissue distribution studies revealed widespread tissue distribution with highest exposures in adrenal gland, liver, cecum, and kidney (tissue-to-plasma ratios up to 17.3 for adrenal gland). Brain and spinal cord showed substantially lower concentrations, while pigmented tissues demonstrated selective melanin binding in Long Evans rats.”
✓ VerifiedFDA pharmacology/toxicology review, p. 17Source ↗
Modality-specific risk
Electrolyte/fluid imbalance and adrenal effects; adrenal insufficiency risk negligible at therapeutic doses
“Based on nonclinical data, the risk of adrenal insufficiency appears to be negligible at therapeutic doses and would be a potential concern at very high, supra-therapeutic exposures where the drug's selectivity for aldosterone synthase may be overcome.”
✓ VerifiedFDA pharmacology/toxicology review, p. 9Source ↗