IV eravacycline for the treatment of complicated intra-abdominal infections has been submitted to and was validated by the European Medicines Agency.-Tetraphase Pharmaceuticals.

Tetraphase Pharmaceuticals, Inc. has announced that the Marketing Authorization Application (MAA) for IV eravacycline for the treatment of complicated intra-abdominal infections (cIAI) has been submitted and was validated by the European Medicines Agency (EMA). Eravacycline is a novel, fully-synthetic fluorocycline antibiotic being developed for the treatment of serious infections, including those caused by multidrug-resistant (MDR) pathogens. The MAA filing is based on data from the phase III IGNITE1 clinical trial in which eravacycline was well tolerated and demonstrated statistical non-inferiority to ertapenem using the primary endpoint of clinical response at the test-of-cure (TOC) visit.

Eravacycline is currently being investigated in the Company's phase III IGNITE (Investigating Gram-negative Infections Treated with Eravacycline) program. To date, eravacycline has been administered to over 1,500 patients and in two completed phase III trials in cIAI. In IGNITE1, twice-daily IV eravacycline met the primary endpoint by demonstrating statistical non-inferiority of clinical response compared to ertapenem, was well tolerated, and achieved high cure rates in patients with Gram-negative pathogens, including resistant isolates. The IGNITE1 data is serving as the basis of the MAA for IV eravacycline for the treatment of patients with cIAI now under review by the EMA. In IGNITE4, a second phase III clinical trial in patients with cIAI, twice-daily IV eravacycline met the primary endpoint by demonstrating statistical non-inferiority of clinical response compared to meropenem, was well tolerated, and achieved high cure rates. The Company plans to use the results from IGNITE1 and IGNITE4 to support an NDA submission for IV eravacycline in cIAI. Tetraphase is also currently conducting IGNITE3, an additional phase III trial evaluating once-daily IV eravacycline in patients with cUTI and, assuming a positive outcome, the Company plans to use the results from IGNITE3 to support a supplemental NDA submission for eravacycline in cUTI.

In parallel, Tetraphase is continuing its efforts to develop an oral dose formulation of eravacycline. A phase 1 clinical program is ongoing which is designed to evaluate and optimize the oral dosing regimen for eravacycline.