Ovariectomized rat and monkey models of postmenopausal osteoporosis treated with romosozumab
“In ovariectomized rats and monkeys (animal models of postmenopausal osteoporosis), romosozumab increased bone mass and bone strength without negatively affecting bone quality.”
✓ VerifiedFDA multi-discipline review, p. 233Source ↗
Why that model
Romosozumab binds rat, monkey and human sclerostin with similar affinity and is pharmacologically active in rats and monkeys
“The Sprague Dawley rat and cynomolgus monkey were selected as the main rodent and non-rodent toxicology species as romosozumab binds to human, rat, and cynomolgus monkey sclerostin with similar affinity and is pharmacologically active in these species.”
EMA: cross-species activity justifies the sclerostin rationale and use of rats and monkeys for primary and safety pharmacology
“As romosozumab binds to human, cynomolgus monkey, and rat sclerostin with a similar strong affinity and was shown to be pharmacologically active in rats and cynomolgus monkeys in vivo, the rationale for inhibition of sclerostin in the treatment of osteoporosis”