ZS Pharma, of Coppell, Texas, said it completed a $55 million series D financing. The investor syndicate was led by Novo A/S and included new investors RA Capital, Adage Capital, Sofinnova Ventures, and one other top-tier institutional investor. The financing also included existing investors Alta Partners, Devon Park Bioventures, 3x5 Special Opportunity Fund, Salem Partners and Rivervest.