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Spero Therapeutics Announces Fourth Quarter and Full Year 2017 Operating Results and Provides Pipeline UpdateCAMBRIDGE, Mass., April 02, 2018 (GLOBE NEWSWIRE) -- Spero Therapeutics, Inc. (Nasdaq:SPRO), a multi-asset, clinical-stage biopharmaceutical company focused on identifying, developing and commercializing novel treatments for multi-drug resistant (MDR) bacterial infections, today announced financial results for the fourth quarter and full year ended December 31, 2017 and provided a pipeline update. “In 2017, we made significant progress with the completion of our IPO in November and advancement of our pipeline highlighted by the initiation of the SPR994 Phase 1 trial and SPR741 Phase 1b trial,” said Ankit Mahadevia, M.D., Chief Executive Officer of Spero Therapeutics. “We expect this momentum to continue during 2018 with several important catalysts, including a Phase 3 trial initiation for SPR994 around year-end 2018 and data from our pipeline compounds, all of which address the critical need for novel anti-infective therapies to current and emerging drug-resistant infections.” Recent Clinical Highlights and Upcoming Milestones SPR994: Potentiator Platform (SPR741 and SPR206): SPR741 is an IV-administered agent designed to expand the spectrum and increase the potency of a partner antibiotic when administered in combination. In November 2017, Spero initiated a Phase 1b drug-drug interaction trial of SPR741 in healthy volunteers as a single dose in combination with compounds from the beta-lactam class of antibiotics. The trial assesses the impact, if any, on the standalone pharmacokinetics of SPR741 or the standalone pharmacokinetics of the beta-lactam combination drug when the two are dosed together as a single dose. The Company anticipates top-line data from this Phase 1b trial during the second quarter of 2018. SPR206 is designed to have antibiotic activity as a single agent against MDR and extremely drug resistant (XDR) bacterial strains and multiple susceptibility testing studies suggests that SPR206 is capable of potent activity against MDR Enterobacteriaceae, carbapenem resistant Pseudomonas aeruginosa and carbapenem resistant Acinetobacter baumanii. The Company expects to have additional data from ongoing preclinical studies in the second quarter of 2018. SPR720: Fourth Quarter and Full-year 2017 Financial Results Grant revenue for the fourth quarter and year ended December 31, 2017 totaled $1.0 million and $2.0 million, respectively, and is comprised of reimbursement of SPR741 and SPR720 program expenses. Grant revenue for the year ended December 31, 2017 was $1.6 million higher than the same period of 2016 due to an increase in available awards as well as a greater reimbursable spend on our product candidates. Research and development expenses for the fourth quarter 2017 were $12.5 million compared to $6.9 million for the same period of 2016 as expenses increased with pipeline advancement, including the initiations of the SPR994 Phase 1 trial and SPR741 Phase 1b trial. Research and development expenses for the year ended December 31, 2017 were $32.9 million compared to $26.3 million for the year ended December 31, 2016, with increased expenses in 2017 primarily related to costs associated with formulation development and manufacturing of clinical material offset by lower preclinical program expense. Research and development expense in 2017 included $1.6 million in fees to Meiji Seika Pharma Co. related to SPR994 development and in-licensing and $2.6 million to Northern Antibiotics OY related to SPR741 development. The Company expects that its research and development expenses will increase throughout 2018 as it incurs costs related to its planned clinical and preclinical development activities, including the SPR994 Phase 3 trial that it plans to initiate around year-end 2018. General and administrative expenses for the fourth quarter 2017 were $2.5 million compared to $2.2 million for the same period of 2016, with the increase primarily due to greater costs associated with operating as a public company and our initial public offering. General and administrative expenses for the year ended December 31, 2017 were $10.8 million compared to $7.2 million for the year ended December 31, 2016, with increased expenses in 2017 mainly due to increased headcount and higher professional fees. The Company expects general and administrative expenses to increase in 2018 with additional headcount and professional fees to support its research and development efforts and greater costs associated with operating as a public company. As of December 31, 2017, the Company had cash and cash equivalents of $87.3 million. Spero believes that its existing cash and cash equivalents will fund operating expenses and capital expenditure requirements into the second quarter of 2019. In early November 2017, Spero completed its initial public offering in which it issued a total of approximately 6.0 million shares of common stock at a public offering price of $14.00 per share, for net proceeds after discounts and expenses of $74.2 million. As of December 31, 2017, the Company is receiving funding support of up to an aggregate of $10.1 million from government sources and it continues to seek additional non-dilutive funding opportunities. Upcoming Scientific and Investor Presentations
About Spero Spero Therapeutics is a multi-asset, clinical-stage biopharmaceutical company focused on identifying, developing and commercializing novel treatments for multidrug-resistant (MDR) bacterial infections. Spero is advancing SPR994, which is designed to be the first broad-spectrum oral antibiotic for use in adults to treat MDR Gram-negative infections. Spero is also advancing its Potentiator Platform, which it believes will enable it to develop drugs that will expand the spectrum and potency of existing antibiotics, including formerly inactive antibiotics, against Gram-negative bacteria. The product candidates are two IV-administered agents, SPR741 and SPR206, designed to treat MDR Gram-negative infections in the hospital setting. Spero is also advancing SPR720, its novel oral therapy product candidate designed for the treatment of pulmonary non-tuberculous mycobacterial (NTM) infection, an orphan infectious disease. For more information, visit https://sperotherapeutics.com. Forward Looking Statements This press release may contain forward-looking statements. These statements include, but are not limited to, statements about the initiation, timing, progress and results of the Company’s preclinical studies and clinical trials and the Company’s research and development programs, the timing of clinical data, the Company’s cash forecast and anticipated expenses and the sufficiency of the Company’s cash resources. In some cases, forward-looking statements can be identified by terms such as “may,” “will,” “should,” “expect,” “plan,” “aim,” “anticipate,” “could,” “intent,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other similar expressions. 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 clinical trials will be indicative of results obtained in future clinical trials; whether the Company’s product candidates will advance through the preclinical development and clinical trial process on a timely basis, or at all; whether the results of such trials will warrant submission for approval from the United States Food and Drug Administration or equivalent foreign regulatory agencies; whether the Company’s cash resources will be sufficient to fund its continuing operations for the periods and/or trials anticipated; and other factors discussed in the “Risk Factors” section of the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission on April 2, 2018, and risks described in other filings the Company may make with the Securities and Exchange Commission in the future. The forward-looking statements included in this press release represent the Company’s views as of the date of this press release. The Company anticipates that subsequent events and developments will cause its views to change. However, while the Company may elect to update these forward-looking statements at some point in the future, it specifically disclaims any obligation to do so. These forward-looking statements should not be relied upon as representing the Company’s views as of any date subsequent to the date of this press release. Spero Investor Contact:
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