Reata (RETA) Plunges on FDA Concerns for Kidney Failure Drug Posted byZacks Equity Research December 7, 2021 Leave a comment on Reata (RETA) Plunges on FDA Concerns for Kidney Failure Drug The FDA raises concerns related to data in Reata’s (RETA) NDA seeking approval for bardoxolone for treating Alport syndrome. An advisory committee meeting is scheduled tomorrow.