On March 6, 2019 Seres Therapeutics, Inc. (Nasdaq: MCRB) reported fourth quarter and full year 2018 financial results and provided an operational update (Press release, Seres Therapeutics, MAR 6, 2019, View Source [SID1234534032]).

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"This has been a highly eventful period where we advanced our microbiome clinical programs and implemented a more focused R&D strategy. During the last several months, we initiated two clinical studies and implemented corporate changes to concentrate resources on the highest priority programs," said Eric Shaff, President and Chief Executive Officer of Seres Therapeutics. "Seres is working to expeditiously progress our ongoing clinical studies to data read outs while also advancing our next generation, rationally-designed, fermented microbiome drug discovery capabilities centered on SER-301 for ulcerative colitis. We expect to complete SER-287 Phase 2b study enrollment by mid-2020 and obtain SER-401 Phase 1b study results in 2020. We continue to evaluate design options around our SER-109 Phase 3 study in order to expedite trial results."

Seres also announced today the initiation of a SER-401 Phase 1b study in patients with metastatic melanoma. SER-401 is an oral microbiome therapeutic candidate sourced from healthy individuals identified to have a microbiome bacterial signature similar to that observed in immunotherapy responders. The Phase 1b study, conducted in collaboration with The University of Texas MD Anderson Cancer Center and the Parker Institute for Cancer Immunotherapy, will evaluate the potential for SER-401 to augment response to anti-PD-1 checkpoint inhibitor therapy. The study is designed to enroll 30 patients, who will receive the FDA-approved anti-PD-1 inhibitor nivolumab and will be randomized 2:1 to receive either SER-401 or placebo. The study will evaluate safety, impact on the gastrointestinal microbiome and various clinical and immunological outcome measures.

Recent Highlights and Events

SER-109 Phase 3 study progress: Seres continues to recruit patients into the SER-109 Phase 3 study for recurrent C. difficile infection. The widespread use of fecal microbiota transplantation, an unapproved and uncontrolled practice, has impacted the enrollment rate of this placebo-controlled clinical trial. Seres is evaluating modification of the study design to expedite clinical results.
Corporate changes to focus on highest priority programs and appointment of Chief Scientific Officer (January 2019): The Company has concentrated resources on completing the SER-287 Phase 2b study in mild-to-moderate ulcerative colitis, the SER-109 Phase 3 study for recurrent C. difficile infection and the SER-401 Phase 1b study in metastatic melanoma. In addition, Seres will continue to advance its next generation, rationally-designed, fermented drug discovery capabilities, with a focus on SER-301 for ulcerative colitis. Seres made changes to its executive team and reduced its full-time workforce by approximately 30%. Matthew Henn, Ph.D., previously Executive Vice President and Head of Discovery and Microbiome R&D, was appointed Chief Scientific Officer.
Chief Executive Officer appointed (January 2019): Seres announced the appointment of Eric D. Shaff as President and Chief Executive Officer. Mr. Shaff, who was Chief Operating and Financial Officer, succeeded Roger J. Pomerantz, M.D., who continues as Chair of Seres’ Board of Directors.
SER-287 Phase 2b study initiated in ulcerative colitis (January 2019): Seres announced the start of a Phase 2b trial, ECO-RESET, evaluating SER-287 in patients with active mild-to-moderate ulcerative colitis. Seres received $40 million in milestone payments associated with this study start from Nestlé Health Science. The Company obtained feedback from the FDA indicating that results from this study, in conjunction with data from a second pivotal study, could enable a Biologics License Application. The Company expects to complete trial enrollment by mid-2020.
Chief Medical Officer appointed (October 2018): Seres appointed Kevin Horgan, M.D., as Executive Vice President and Chief Medical Officer. Dr. Horgan will lead Seres’ clinical development, clinical operations, regulatory affairs and medical affairs functions.
Financial Results

Seres reported a net loss of $98.9 million for the full year 2018, as compared to a net loss of $89.4 million for the prior year. Seres reported a net loss of $21.3 million for the fourth quarter of 2018, as compared to a net loss of $29.0 million for the same period in 2017. The fourth quarter net loss was driven primarily by clinical and development expenses, personnel expenses and ongoing development of the Company’s microbiome therapeutics platform. The fourth quarter net loss figure was inclusive of $10.6 million in recognized revenue associated primarily with the Company’s collaboration with Nestlé Health Science.

Research and development expenses for the fourth quarter 2018 were $24.8 million, as compared to $24.0 million for the same period in 2017. The research and development expense was primarily related to Seres’ microbiome therapeutics platform, the clinical development of SER-109 and SER-287, as well as the Company’s immuno-oncology efforts.

General and administrative expenses for the fourth quarter were $7.5 million, as compared to $8.8 million for the same period in the prior year. General and administrative expenses were primarily due to headcount, professional fees and facility costs.

The increase in the Company’s cash, cash equivalents and investments balance during the quarter was $12.9 million. Seres ended the fourth quarter with approximately $85.8 million in cash, cash equivalents and investments. The increase in cash in Q4 was inclusive of $40.0 million in milestones received under the Company’s collaboration with Nestlé Health Science. Based on the Company’s current operating plan, cash resources are expected to fund operating expenses and capital expenditure requirements, excluding net cash flows from future business development activities or potential incoming milestone payments, into the fourth quarter of this year.

Conference Call Information

Seres’ management will host a conference call today, March 6, 2019, at 8:30 a.m. ET. To access the conference call, please dial 844-277-9450 (domestic) or 336-525-7139 (international) and reference the conference ID number 6566237. To join the live webcast, please visit the "Investors and Media" section of the Seres website at www.serestherapeutics.com.

A webcast replay will be available on the Seres website beginning approximately two hours after the event and will be archived for at least 21 days.