RALEIGH, N.C.--(BUSINESS WIRE)--NephroGenex, Inc. (Nasdaq:NRX), a pharmaceutical company focused on the development of therapeutics to treat kidney disease, will report financial results for the quarter ended June 30, 2015 on Wednesday, August 12, after the U.S. financial markets close. The Company will host a conference call and webcast the following day, Thursday, August 13, at 8 a.m. Eastern, to review second quarter results and provide an update on its PIONEER program for diabetic nephropat