References: |
LMI070 (NVS-SM1) is a highly potent, selective and orally active small molecule SMN2 splicing modulator. Target: RNA splicing in vitro: NVS-SM1 shows high plasma exposure, good bioavailability and, notably, good distribution to the brain, a primary target tissue NVS-SM1 exhibits efficacy at lower doses and exposures. NVS-SM1 shows robust activity across disease-relevant induced pluripotent stem cell (iPSc)-derived neurons.invivo : To evaluate the efficacy of NVS-SM1, we used the SMNΔ7 mouse model, which displays a severe phenotype. In the specific colony used for this study, death typically occurs before postnatal day 15. We were pleased to observe that, in addition to a dose-dependent elevation of SMN protein in the brain, oral administration of NVS-SM1 improved body weight and extended lifespan, with 50% of the animals in the 1 mg per kg body weight group and 62% of animals in the 3 mg per kg body weight group showing increased survival. |