No nonclinical basis; target 10,000 EIN/kg from prior Edmonton Protocol clinical experience
“In both UIH-001 & UIH-002 studies a target islet dose of 10,000 EIN/kg was proposed based on the findings of previous experience with Edmonton Protocol for allogeneic islet transplantation.”
✓ VerifiedFDA summary basis for approval, p. 14Source ↗
NOAEL / key findings
No NOAEL; literature mouse intraportal allografts: emboli, thrombosis, focal liver necrosis without immunosuppression
“These findings were observed on Day 1, progressed to necrotic regions surrounded by multifocal leucocyte infiltrates by Day 3, with progressive mononuclear leukocyte infiltration of the colonized islets (from peri-islet to intra-islet), leading to islet destruction by Days 9-14.”
✓ VerifiedFDA pharmacology/toxicology review, p. 21Source ↗