Positive test results for Tetraphase Pharmaceuticals By: MarketMinute.com Stock News July 26, 2017 at 17:11 PM EDT Tetraphase Pharmaceuticals Inc. (Nasdaq: TTPH) reported positive results from a Phase 3 clinical trial of eravacycline lifting the stock price 98 cents to close at $7.88. Related Stocks: Tetraphase Pharmaceu