Allograft rejection without immunosuppression in mice; clinical HLA sensitization (donor-specific antibodies) risk
“These data suggest that an immunosuppression regimen is necessary for islet survival post-transplant and provide overall support for use of the (revised) Edmonton Protocol with intraportal transplantation of LANTIDRA in the target patient population.”
✓ VerifiedFDA pharmacology/toxicology review, p. 21Source ↗
Biodistribution & persistence
Literature pig PET: labeled islets heterogeneously in liver, no extrahepatic accumulation
“The distribution of the 18F-FDG-labeled islet cells in the liver was found to be heterogeneous. No accumulation of radioactivity was detected in non-hepatic tissues.”
✓ VerifiedFDA pharmacology/toxicology review, p. 19Source ↗
Modality-specific risk
Intraportal liver toxicity (thrombosis, necrosis), immunosuppression need, hormonal hepatocarcinogenesis
“This combination of islet number, hyperinsulinism, and hyperglycemia resulted in liver tumors.”
✓ VerifiedFDA pharmacology/toxicology review, p. 25Source ↗