Conducted: Ames, human lymphocyte chromosome aberration, rat micronucleus; all negative
“Lumasiran was not genotoxic in an in vitro bacterial reverse mutation (Ames) assay, in vitro chromosomal aberration assay in cultured human peripheral blood lymphocytes, or in vivo micronucleus assay in rats.”
Postmarketing requirement; later completed: 26-week Tg-rasH2 mouse and 2-year rat both negative
“Lumasiran was not carcinogenic in transgenic Tg-rasH2 mice following monthly subcutaneous administration of lumasiran for 26 weeks at doses of 150, 500, or 1500 mg/kg.”
Standalone monkey CV/respiratory telemetry (10, 100 mg/kg weekly x4), no effects; CNS in 8-week monkey study
“In a standalone cardiovascular safety pharmacology study in the monkey, the administration of lumasiran at 10 and 100 mg/kg weekly for a total of four doses had no immediate or delayed effects on clinical observations, qualitative or quantitative electrocardiogram parameters,”
“Lumasiran was not genotoxic in an in vitro bacterial reverse mutation (Ames) assay, in vitro chromosomal aberration assay in cultured human peripheral blood lymphocytes, or in vivo micronucleus assay in rats.”
Chromosomal aberration in human peripheral blood lymphocytes: negative
“Lumasiran was not genotoxic in an in vitro bacterial reverse mutation (Ames) assay, in vitro chromosomal aberration assay in cultured human peripheral blood lymphocytes, or in vivo micronucleus assay in rats.”
“Lumasiran was not genotoxic in an in vitro bacterial reverse mutation (Ames) assay, in vitro chromosomal aberration assay in cultured human peripheral blood lymphocytes, or in vivo micronucleus assay in rats.”
26-week Tg-rasH2 mouse (up to 1500 mg/kg monthly) and rat study; not carcinogenic in mice
“Carcinogenicity studies were conducted in Tg-rasH2 mice and Sprague Dawley rats. Lumasiran was not carcinogenic in transgenic Tg-rasH2 mice following monthly subcutaneous administration of lumasiran for 26 weeks at doses of 150, 500, or 1500 mg/kg.”
2-year rat and 6-month transgenic mouse studies underway at approval; postmarketing requirements
“Two-year rat and 6-month transgenic mouse carcinogenicity studies are underway. The available data do not raise concern for a risk of carcinogenicity that should delay approval given the apparent clinical benefit and unmet need. As such, these studies will be postmarketing requirements.”
Monkey safety pharmacology: no QT or QTc prolongation after four SC doses of 10 and 100 mg/kg
“Safety pharmacology studies in monkeys did not demonstrate prolongation in QT or QTc (using the individual animal correction factor) after four subcutaneous doses of 10 and 100 mg/kg administered in a 3-week period.”