Tetraphase Pharmaceuticals Initiates Phase 1 Clinical Trial for TP-6076, a Second-Generation Antibiotic Candidate Highly Active Against MDR Bacteria

WATERTOWN, Mass., Aug. 01, 2016 (GLOBE NEWSWIRE) -- Tetraphase Pharmaceuticals, Inc. (NASDAQ:TTPH) today announced the initiation of patient dosing in a phase 1 clinical trial for intravenous (IV) TP-6076, a novel antibiotic candidate being developed for the treatment of serious and life-threatening bacterial infections, including those caused by pathogens otherwise resistant to current treatment options.

“TP-6076 is the lead candidate selected from our second-generation discovery program because it has demonstrated potent activity against difficult-to-treat Gram-negative pathogens in preclinical studies, including carbapenem-resistant Enterobacteriaceae (CRE) and carbapenem-resistant Acinetobacter baumannii (CRAB),” said Patrick Horn, Chief Medical Officer of Tetraphase. “As new antibiotic treatment options are needed to help address the rising threat of antibiotic resistance, we are pleased to advance TP-6076 as our third antibiotic candidate in ongoing clinical trials.”

The phase 1 randomized, placebo-controlled, double-blind, sequential-cohort, single-ascending dose study is evaluating the safety and pharmacokinetics of TP-6076. The study is being conducted under a Clinical Trial Authorization in a single center in up to 32 healthy volunteers. This is the first study in the phase 1 clinical program for TP-6076 which is also expected to include a multiple-ascending dose study.

About Tetraphase Pharmaceuticals, Inc.
Tetraphase is a clinical-stage biopharmaceutical company using its proprietary chemistry technology to create novel antibiotics for serious and life-threatening bacterial infections, including those caused by many of the multidrug-resistant (MDR) bacteria highlighted as urgent public health threats by the CDC. Tetraphase has created more than 3,000 novel tetracycline analogs using its proprietary technology platform. Tetraphase's pipeline includes three antibiotic clinical candidates: eravacycline, which is in phase 3 clinical trials, and TP-271 and TP-6076, which are in phase 1 clinical trials. Please visit www.tphase.com for more company information.

Forward-Looking Statements
Any statements in this press release about our future expectations, plans and prospects, including statements regarding our strategy, future operations, prospects, plans and objectives, and other statements containing the words “anticipates,” “believes,” “expects,” “plans,” “will” and similar expressions, constitute forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those indicated by such forward-looking statements as a result of various important factors, including: whether results obtained in preclinical studies and early or interim clinical trials will be indicative of results obtained in future clinical trials; whether TP-6076 or any other clinical candidate will advance through the clinical trial process on a timely basis; whether the results of the Company’s trials will warrant regulatory submission and receive approval from the United States Food and Drug Administration or equivalent foreign regulatory agencies; whether, if any clinical candidate obtains approval, it will be successfully distributed and marketed; and other factors discussed in the “Risk Factors” section of our quarterly report on Form 10-Q, filed with the Securities and Exchange Commission on May 4, 2016. In addition, the forward-looking statements included in this press release represent our views as of August 1, 2016. We anticipate that subsequent events and developments will cause our views to change. However, while we may elect to update these forward-looking statements at some point in the future, we specifically disclaim any obligation to do so.

Investor Contacts: Tetraphase Pharmaceuticals Teri Dahlman 617-600-7040 tdahlman@tphase.com Argot Partners Susan Kim 212-600-1902 susan@argotpartners.com Media Contact: Sam Brown Inc. Mike Beyer 312-961-2502 mikebeyer@sambrown.com

Source:Tetraphase Pharmaceuticals