Stress-induced IBS-C rat model, mouse opioid-induced constipation model, neonatal acetic-acid IBS-like rat model
“In a stress-induced IBS-C model of rat, and a mouse model of opioid-induced constipation, tenapanor showed a significant improvement of GI function following oral doses of up to 50 mg/kg. Oral administration of tenapanor (0.5 mg/kg) to a rat model of IBS-like syndrome (intracolonic infusion of 0.5% acetic acid) resulted in reductions in colonic hypersensitivity”
✓ VerifiedFDA multi-discipline review, p. 32Source ↗
Why that model
Not stated in public reviews
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
Reviewer's view of the efficacy data
Significant improvement in GI function in normal animals and IBS-C and opioid-induced constipation models
“Oral administration of tenapanor to mice, cynomolgus monkeys, a stress-induced IBS-C model of rat, and a mouse model of opioid-induced constipation showed a significant improvement in GI function.”
✓ VerifiedFDA multi-discipline review, p. 36Source ↗