Thursday, May 13, 2021

Toxicity concerns send Larimar down

Evaluate Vantage. May 12, 2021. 
Slightly further behind is Larimar, which yesterday reported phase 1 results with its candidate CTI-1601. Although biomarker data looked promising, the group’s stock sank 36% yesterday on toxicity concerns in non-human primate studies. The company will need to iron out these issues if its asset is to progress. 

We also have conducted several non-clinical toxicology studies, including 28 and 90-day studies in rats and non-human primates, and have an on-going 180- day non-human primate study. In the 90-day non-human primate study a mortality was observed, which was determined to be due to a bacterial meningitis infection and was unrelated to study drug. In addition, mortalities have been observed in the ongoing 180 day-non-human primate study at the highest dose levels. We have informed FDA of these findings and we are continuing to dose non-human primates in the study and are continuing to collect and evaluate data. While additional non-clinical information may be required before we initiate further clinical studies, based on all the information we have from the non-clinical program to date together with extensive input from toxicologists and other relevant experts, we currently expect to remain ontrack with our previously disclosed timeline of initiating both our open-label extension (the JIVE trial) and a pediatric MAD trial in Friedreich’s ataxia patients during the second half of 2021.