STOCKHOLM, April 8, 2024 /PRNewswire/ -- Calliditas Therapeutics AB (Nasdaq: CALT) (Nasdaq Stockholm: CALTX) ("Calliditas"), today announced upcoming data presentations, as well as a sponsored symposium at the International Society of Nephrology's World Congress of Nephrology.  The ISN World Congress of Nephrology will be held in Buenos Aires, Argentina April 13-16, 2024.Investigators will deliver additional analyses from the 2-year Phase 3 NeflgArd trial with Nefecon (TARPEYO® (budesonide) delayed release ...