10-K – Annual report [Section 13 and 15(d), not S-K Item 405]

Lexicon Pharmaceuticals has filed a 10-K – Annual report [Section 13 and 15(d), not S-K Item 405] with the U.S. Securities and Exchange Commission (Filing, 10-K, Lexicon Pharmaceuticals, 2018, FEB 28, 2018, View Source [SID1234524291]).

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Horizon Pharma plc Announces Fourth-Quarter and Full-Year 2017 Results

On February 28, 2018 Horizon Pharma plc (NASDAQ:HZNP) reported its fourth-quarter and full-year 2017 financial results today (Press release, Horizon Pharma, FEB 28, 2018, View Source [SID1234524238]). The Company also provided its full-year 2018 net sales and adjusted EBITDA guidance.

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"Our rare disease medicines generated better-than-expected fourth-quarter results, with net sales increasing 60 percent for the full year, underscoring the value of our diversification initiatives over the last several years," said Timothy P. Walbert, chairman, president and chief executive officer, Horizon Pharma plc. "We made significant progress in 2017, doubling the KRYSTEXXA commercial organization and expanding our pipeline with the acquisition of teprotumumab, our late-stage fully human monoclonal antibody candidate for the treatment of thyroid eye disease."

Added Walbert, "In 2018, we expect continued strong performance of our rare disease medicines, and we are advancing our strategy to build a pipeline of clinically differentiated medicines and maximize the growth of KRYSTEXXA. We are increasing our investment in R&D to support our Phase 3 confirmatory teprotumumab trial and new rheumatology development programs, as well as investing further in KRYSTEXXA to support our significant growth expectations. These investments, combined with our focus on commercial execution, position us well for strong and sustainable long-term growth."

Financial Highlights
(in millions except for per share amounts and percentages) Q4 17 Q4 16 % Change FY 17 FY 16 % Change

Net sales (1) $ 274.2 $ 310.3 (12 ) $ 1,056.2 $ 981.1 8
Non-GAAP adjusted net sales (1) 274.2 310.3 (12 ) 1,056.2 1,046.1 1

Net loss (46.4 ) (130.5 ) 64 (410.5 ) (166.8 ) (146 )
Non-GAAP net income 48.4 106.4 (55 ) 194.8 354.4 (45 )
Adjusted EBITDA 102.7 136.4 (25 ) 389.7 470.7 (17 )

Net loss per share – diluted (0.28 ) (0.81 ) 65 (2.52 ) (1.04 ) (142 )
Non-GAAP earnings per share – diluted 0.29 0.64 (55 ) 1.18 2.16 (45 )

(1) On Sept. 26, 2016, Horizon Pharma agreed to pay Express Scripts $65 million as part of a litigation settlement, which was recorded as a one-time reduction to GAAP net sales for the full-year 2016 in accordance with U.S. Generally Accepted Accounting Principles (GAAP). The exclusion of the $65 million settlement from GAAP net sales is the only adjustment reflected in full-year 2016 non-GAAP adjusted net sales.

Fourth-Quarter and Recent Company Highlights

Total Net Sales: Fourth-quarter net sales were $274.2 million, driven by continued strong growth from the Company’s orphan and rheumatology business units.

Rare Disease Medicines Net Sales: Fourth-quarter net sales of medicines for rare diseases, which include KRYSTEXXA, RAVICTI, PROCYSBI, ACTIMMUNE, BUPHENYL and QUINSAIR, increased 36 percent year over year and represented 58 percent of fourth-quarter 2017 total net sales compared to 38 percent of fourth-quarter 2016 non-GAAP net sales. Net sales of KRYSTEXXA, one of the Company’s key growth drivers, increased 48 percent year over year.

New Head of R&D and Chief Scientific Officer:Shao-Lee Lin, M.D., Ph.D., joined Horizon Pharma in January 2018 as executive vice president, head of research and development (R&D) and chief scientific officer. Dr. Lin is an accomplished pharmaceutical executive, physician and scientist with more than 20 years of academic and clinical research experience and will accelerate the development of a robust pipeline to drive the Company’s next phase of growth.

Orphan Pipeline: In late 2017, the first patient was enrolled in the Phase 3 confirmatory clinical trial for teprotumumab, the Company’s fully human monoclonal antibody IGF-1R-inhibitor being studied for the treatment of thyroid eye disease (TED), a rare eye disease.

Rheumatology Pipeline: In January 2018, the Company announced two next-generation uncontrolled gout development programs to support and sustain the Company’s market leadership in uncontrolled gout (chronic gout that is refractory to conventional therapies). HZN-002, a novel dexamethasone conjugate, was also added to the pipeline.

RAVICTI: In late February 2018, the Company submitted a supplemental New Drug Application (sNDA) to expand the age range for chronic management of urea cycle disorders (UCDs) to birth and older from the current age range of two months of age and older.

PROCYSBI: In December 2017, the Company received U.S. Food and Drug Administration (FDA) approval to expand the age range to include children one year of age and older living with nephropathic cystinosis.

Clinical Development Update

Orphan Candidates and Programs:

Teprotumumab: In late 2017, the Company announced enrollment of the first patient in the teprotumumab Phase 3 confirmatory clinical trial. Titled OPTIC (Treatment of Graves’ Orbitopathy (Thyroid Eye Disease) to Reduce Proptosis with Teprotumumab Infusions in a Randomized, Placebo-Controlled, Clinical Study), the pivotal confirmatory study will evaluate teprotumumab for the treatment of moderate-to-severe active TED. The study is expected to enroll 76 patients across the United States, Germany and Italy.

In early January 2018, following additional analysis of the addressable TED patient population and market opportunity for teprotumumab in the United States, the Company increased its estimated peak annual net sales expectation to more than $750 million from more than $250 million, assuming U.S. FDA approval.

ACTIMMUNE: Three investigator-initiated cancer-combination trials with ACTIMMUNE continue to advance. These studies are evaluating cancer treatment therapies for advanced breast cancer patients, cutaneous T-Cell lymphoma and certain other cancerous solid tumors.

Rheumatology Pipeline Candidates and Programs:

In early January 2018, the Company announced several developments in its growing rheumatology pipeline, designed to enhance KRYSTEXXA and the Company’s market leadership in uncontrolled gout, as well as augment its rheumatology business unit.

HZN-003: A potential next-generation biologic for uncontrolled gout, HZN-003 is a pre-clinical, genetically engineered uricase derivative with optimized uricase and optimized PEGylation technology that has the potential to improve the response rate to the biologic as well as patient convenience through subcutaneous dosing.

PASylated Uricase Technology: The Company recently entered into a collaboration agreement with XL-protein GmbH to identify clinical-stage product candidates that could use PASylation technology to construct a next-generation gout biologic. The intention is to extend the half-life of uricase to improve the response rate of the biologic as well as patient convenience through subcutaneous dosing.

HZN-002: HZN-002 is a pre-clinical, novel dexamethasone conjugate and has potential to address inflammatory diseases through its targeted delivery technology.

In addition to the rheumatology development programs, two investigator-initiated trials will evaluate the use of immunomodulatory therapies to enhance the response rate for KRYSTEXXA. The studies will use two different immunomodulators that are commonly used by rheumatologists.

RECIPE Investigator-Initiated Trial: The REduCing Immunogenicity to PegloticasE (RECIPE) study will evaluate the use of the immunomodulator mycophenolate mofetil (MMF) with KRYSTEXXA to improve the response rate to the medicine. The study is a double-blind, placebo-controlled trial designed to evaluate if a 12-week course of immunomodulating therapy with daily MMF can safely and meaningfully prevent the incidence of an immune response to KRYSTEXXA.

TRIPLE Investigator-Initiated Trial: The Tolerization Reduces Intolerance to Pegloticase and Prolongs the Urate Lowering Effect (TRIPLE) study will evaluate the use of the immunomodulator azathioprine with KRYSTEXXA to improve the response rate to the medicine. An exploratory, open-label adaptive trial with multiple patient cohorts, TRIPLE will include a cohort to evaluate the impact of adding the immunomodulator azathioprine for a two-week run-in period, followed by daily azathioprine and KRYSTEXXA every 2 weeks for a total of 13 doses.

Fourth-Quarter and Full-Year 2017 Business Unit Net Sales Results
(in millions except for percentages) Q4 17 Q4 16 % Change FY 17 FY 16 % Change
Orphan $ 116.6 $ 88.1 32 $ 466.8 $ 299.3 56
RAVICTI 51.9 32.9 57 193.9 151.5 28
PROCYSBI(1)(2) 33.2 25.3 31 137.7 25.3 445
ACTIMMUNE 26.8 24.2 11 111.0 104.6 6
BUPHENYL 4.6 4.7 (3 ) 20.8 16.9 23
QUINSAIR(1)(2) 0.1 1.0 (87 ) 3.4 1.0 231
Rheumatology 61.4 41.6 48 214.0 142.7 50
KRYSTEXXA 43.8 29.5 48 156.5 91.1 72
RAYOS 15.6 11.3 38 52.1 47.4 10
LODOTRA 2.0 0.8 148 5.4 4.2 29
Primary Care 96.2 180.6 (47 ) 375.4 604.1 (38 )
PENNSAID 2% 50.0 96.6 (48 ) 191.0 304.4 (37 )
DUEXIS 28.2 50.9 (45 ) 121.2 173.7 (30 )
VIMOVO 16.6 31.6 (47 ) 57.7 121.3 (52 )
MIGERGOT 1.5 1.5 1 5.5 4.7 18
Litigation settlement(3) - - - - (65.0 ) (100 )
Total GAAP net sales(3) $ 274.2 $ 310.3 (12 ) $ 1,056.2 $ 981.1 8
Total non-GAAP adjusted net sales(3) $ 274.2 $ 310.3 (12 ) $ 1,056.2 $ 1,046.1 1

(1) PROCYSBI and QUINSAIR were acquired on Oct. 25, 2016.
(2) On June 23, 2017, Horizon Pharma completed the divestiture of a European subsidiary that owned the marketing rights to PROCSYBI and QUINSAIR in Europe, the Middle East and Africa to Chiesi Farmaceutici S.p.A. Horizon Pharma retains marketing rights for the two medicines in the United States, Canada, Latin America and Asia.
(3) On Sept. 26, 2016, Horizon Pharma agreed to pay Express Scripts $65 million as part of a litigation settlement, which was recorded as a one-time reduction to GAAP net sales for the full-year 2016 in accordance with U.S. GAAP. The exclusion of the $65 million settlement from GAAP net sales is the only adjustment reflected in full-year 2016 non-GAAP adjusted net sales.

Orphan Business Unit: Fourth-quarter net sales for the orphan business unit were $116.6 million, an increase of 32 percent compared to the fourth quarter of 2016.

RAVICTI net sales in the fourth quarter of 2017 were $51.9 million, an increase of 57 percent compared to the fourth quarter of 2016. The results were driven by continued conversion from older-generation nitrogen-scavenger therapies, as well as the addition of treatment-naïve patients, in part due to the April 2017 update of the RAVICTI label, which expanded the use of the medicine to patients older than two months of age, from two years of age and older.

PROCYSBI net sales in the fourth quarter of 2017 were $33.2 million. PROCYSBI net sales no longer include revenues from the Europe, Middle East and Africa regions following the sale of those geographic marketing rights to Chiesi Farmaceutici S.p.A. in June 2017. In October 2017, the Company launched PROCYSBI in Canada, and it is the only cystine-depleting agent approved in Canada for treatment of nephropathic cystinosis.

ACTIMMUNE net sales in the fourth quarter of 2017 were $26.8 million.

Rheumatology Business Unit: Fourth-quarter net sales for the rheumatology business unit were $61.4 million, an increase of 48 percent compared to the fourth quarter of 2016.

KRYSTEXXA net sales in the fourth quarter of 2017 were $43.8 million, an increase of 48 percent compared to the fourth quarter of 2016. The increase was driven by continued strong year-over-year vial demand and does not reflect any material benefit from the recently expanded commercial organization, described below.

During the fourth quarter, the Company completed the expansion of its rheumatology business unit to nearly 200 employees from more than 100 to increase awareness of uncontrolled gout among physicians and patients, given the clear unmet need that exists for thousands of people with uncontrolled gout. The objective of the expansion is to reach more physicians – both rheumatologists and now nephrologists, kidney specialists who also treat gout. Given the significant commercial expansion, and following additional analysis of the addressable patient population and market opportunities for KRYSTEXXA, in January 2018, the Company announced that it increased its estimated peak annual net sales expectations for KRYSTEXXA to more than $750 million from more than $400 million.

Primary Care Business Unit: Fourth-quarter net sales for the primary care business unit were $96.2 million, a decrease of 47 percent compared to the fourth quarter of 2016, in line with expectations and due to the impact of the Company’s new contracting model with pharmacy benefit managers that was implemented in 2017.

Fourth-Quarter 2017 Financial Results
Note: For additional detail and reconciliation of non-GAAP financial measures to the most directly comparable GAAP financial measures, please refer to the tables at the end of this release.

Gross Profit: Under U.S. GAAP, the fourth-quarter 2017 gross profit ratio was 44.8 percent compared to 51.7 percent in the fourth quarter of 2016. The non-GAAP gross profit ratio in the fourth quarter of 2017 was 89.3 percent compared to 91.9 percent in the fourth quarter of 2016.

Operating Expenses: In the fourth-quarter 2017, total operating expenses were 72.3 percent of net sales on a GAAP basis and 51.7 percent of net sales on a non-GAAP basis. R&D expenses were 11.3 percent of net sales on a GAAP basis and 5.6 percent of net sales on a non-GAAP basis. Selling, general and administrative (SG&A) expenses were 61.1 percent of net sales on a GAAP basis and 46.1 percent of net sales on a non-GAAP basis.

Income Tax Rate: The income tax rate in the fourth quarter of 2017 was 56.6 percent on a GAAP basis and 37.6 percent on a non-GAAP basis, including a one-time tax benefit associated with adjusting deferred tax balances as a result of U.S. tax legislation enacted in December 2017.

Net (Loss) Income: The Company generated a net loss of $46.4 million in the fourth quarter of 2017. Non-GAAP net income was $48.4 million in the fourth quarter of 2017.

Adjusted EBITDA: Adjusted EBITDA in the fourth quarter of 2017 was $102.7 million.

Earnings (Loss) per Share: On a GAAP basis, fourth-quarter 2017 diluted loss per share was $0.28, compared with diluted loss per share of $0.81 in the fourth quarter of 2016. Non-GAAP diluted earnings per share in the fourth quarter of 2017 and 2016 were $0.29 and $0.64, respectively. Weighted average shares outstanding used for calculating GAAP diluted loss per share and non-GAAP diluted earnings per share in the fourth quarter of 2017 were 164.0 million and 166.9 million, respectively.

Cash Flow Statement and Balance Sheet Highlights

Fourth-quarter 2017 operating cash flow was $143.2 million on a GAAP basis and $157.9 million on a non-GAAP basis.

As of Dec. 31, 2017, the Company had cash and cash equivalents of $751.4 million.

As of Dec. 31, 2017, total principal amount of debt outstanding was $2.021 billion, which was composed of $846 million in senior secured term loans due 2024; $475 million senior notes due 2023; $300 million senior notes due 2024; and $400 million exchangeable senior notes due 2022. As of Dec. 31, 2017, net debt was $1.269 billion, and the net debt to last-12-months adjusted EBITDA leverage ratio was 3.3 times.

Horizon Pharma Provides 2018 Guidance

The Company expects full-year 2018 net sales to range between $1.150 billion and $1.180 billion, driven by strong growth in its orphan and rheumatology business units. The Company continues to expect full-year 2018 net sales growth for KRYSTEXXA of more than 50 percent. This projection incorporates assumptions of strong vial growth, the positive impact of the recently expanded KRYSTEXXA commercial organization, as well as the potential impact of a July 1, 2018, implementation of a U.S. government rule related to 340B entity drug pricing.

Full-year 2018 adjusted EBITDA is expected to range between $370 million and $395 million, reflecting the Company’s increased level of investment in 2018 in its pipeline, including teprotumumab Phase 3 clinical trial and commercial manufacturing costs, as well as incremental promotional investment in KRYSTEXXA. A higher level of R&D and SG&A investment is anticipated in the first half of 2018.

Webcast

At 8 a.m. EST / 1 p.m. IST today, the Company will host a live webcast to review its financial and operating results and provide a general business update. The live webcast and a replay may be accessed at View Source Please connect to the Company’s website at least 15 minutes prior to the live webcast to ensure adequate time for any software download that may be needed to access the webcast. A replay of the webcast will be available approximately two hours after the live webcast.

MetaStat Announces Positive Topline Data Showing Over 50% Reduction in Cancer Metastasis from Preclinical Studies Evaluating Inhibition of the MAPKAPK2 Kinase Pathway

On February 28, MetaStat, Inc. (OTCQB: MTST), a precision medicine company developing novel anti-metastatic treatment solutions for patients with aggressive cancer, reported that positive results and the successful completion of the pilot research project with Celgene Corporation (Press release, MetaStat, FEB 28, 2018, https://ir.stockpr.com/metastat/company-news/detail/398/metastat-announces-positive-topline-data-showing-over-50-reduction-in-cancer-metastasis-from-preclinical-studies-evaluating-inhibition-of-the-mapkapk2-kinase-pathway [SID1234524308]). In preclinical models of aggressive breast cancer, data showed cancer cell invasion and metastasis was reversed through inhibition of a specific serine-threonine kinase responsible for activation of the MenaINV protein. Over-expression of the MenaINV protein isoform has been shown to play an important role in driving progression and metastatic dissemination in aggressive types of solid tumors.

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"We are very pleased to have successfully completed our research project that demonstrated a 50% or more reduction in distant metastasis in animal models of aggressive breast cancer," stated Douglas A. Hamilton, MetaStat’s President, CEO and Director. "These results confirm our pathway forward for development of MAPKAPK2 inhibitors selected for specificity against the Mena protein." MetaStat has received the final milestone payment of approximately $100,000 and completed its obligations under the pilot research agreement. MetaStat has received aggregate milestone payments of approximately $1 million from Celgene pursuant to the terms of the agreement.

Detailed results from these in vitro and in vivo studies will be submitted to a future medical conference and for publication.

10-K – Annual report [Section 13 and 15(d), not S-K Item 405]

Acceleron Pharma has filed a 10-K – Annual report [Section 13 and 15(d), not S-K Item 405] with the U.S. Securities and Exchange Commission (Filing, 10-K, Acceleron Pharma, 2018, FEB 27, 2018, View Source [SID1234524200]).

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BioCryst Reports Fourth Quarter and Full Year 2017 Financial Results

On February 27, 2018 BioCryst Pharmaceuticals, Inc. (NASDAQ:BCRX) reported financial results for the fourth quarter and year ended December 31, 2017 (Press release, BioCryst Pharmaceuticalsa, FEB 27, 2018, View Source [SID1234524193]).

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"Our team made significant progress in 2017 and we are off to a strong start in 2018," said Jon P. Stonehouse, President & Chief Executive Officer. "We are keenly focused on continuing that momentum by advancing our pipeline, adding additional programs and driving our BCX7353 oral prophylactic program toward approval and launch. We are on track to report top-line results from the APeX-2 pivotal trial of BCX7353 and to initiate a Phase 1 clinical trial for our recently unveiled ALK2 inhibitor program for treating FOP in the first half of 2019."

Mr. Stonehouse continued, "In January, we announced our proposed merger with Idera Pharmaceuticals, Inc. that we believe will build greater and more sustainable value for the benefit of stockholders as well as patients with rare diseases beyond what we could achieve alone. The BioCryst Board determined this combination was compelling from both a strategic and financial perspective following a careful evaluation of a range of strategies to enhance long-term stockholder value. The transaction will create a leading rare disease company with a robust pipeline including two promising Phase 3 programs and combines synergistic discovery engines that will not only expand the number of rare diseases we can target but create meaningful opportunities for differentiation in the market through joint small molecule and oligo treatments. Importantly, joining with Idera will also enable us to achieve cost synergies and increase our financial strength and flexibility."

Fourth Quarter Financial Results

For the three months ended December 31, 2017, total revenues were $3.9 million, compared to $9.0 million in the fourth quarter of 2016. The decrease in revenue was primarily due to the recognition of $2.3 million of RAPIVAB product sales to commercial partners in 2016 that did not recur in 2017 and approximately a $2.5 million decline in collaborative revenue in 2017, associated with a decrease in development activity under U.S. Government development contracts.

Research and Development (R&D) expenses for the fourth quarter of 2017 increased to $16.9 million from $12.2 million in the fourth quarter of 2016, primarily due to additions in R&D personnel, as well as increased spending to advance the Company’s hereditary angioedema (HAE) portfolio. These increases were partially offset by a decrease in the Company’s galidesivir development expenses in 2017.

General and administrative (G&A) expenses for the fourth quarter of 2017 increased to $4.7 million, compared to $2.6 million in the fourth quarter of 2016. The increase was primarily due to approximately $1.5 million of merger-related costs associated with the Company’s previously announced definitive merger agreement with Idera Pharmaceuticals, Inc. (Idera).

Interest expense was $2.2 million in the fourth quarter of 2017, compared to $2.1 million in the fourth quarter of 2016. Also, a $71,000 mark-to-market gain on the Company’s foreign currency hedge was recognized in the fourth quarter of 2017, as compared to a $5.7 million mark-to-market gain in the fourth quarter of 2016. These changes result from periodic changes in the U.S. dollar/Japanese yen exchange rate.

Net loss for the fourth quarter of 2017 was $19.5 million, or $0.20 per share, compared to a net loss of $4.5 million, or $0.06 per share, for the fourth quarter 2016.

Full Year 2017 Financial Results

For the year ended December 31, 2017, total revenues decreased to $25.2 million from $26.4 million in 2016. The decrease in 2017 revenue was primarily due to lower collaborative revenue under U.S. Government development contracts as well as lower revenue from product sales to corporate partners. These decreases were largely offset by $7.0 million in milestone payments associated with U.S. pediatric and Canadian regulatory approvals of RAPIVAB.

R&D expenses for 2017 increased to $67.0 million from $61.0 million in 2016, primarily due to increased spending on the Company’s HAE program, partially associated with the achievement of a performance-based stock option grant related to the successful completion of the APeX-1 clinical trial, as well as an increase in R&D personnel. These increases were partially offset by a decrease in galidesivir development expenses under U.S. Government development contracts.

G&A expenses for 2017 increased to $13.9 million, compared to $11.3 million in 2016. The increase was due primarily to the achievement of a performance-based stock option grant related to the successful completion of the APeX-1 clinical trial as well as merger-related costs associated with the Company’s definitive merger agreement with Idera.

Interest expense was $8.6 million in 2017, compared to $6.5 million in 2016. The increase in interest expense was due primarily to the closing of the Company’s $23 million senior credit facility in September 2016. A $1.8 million mark-to-market loss on the Company’s foreign currency hedge was recognized in 2017, as compared to a $1.7 million mark-to-market loss in 2016. These losses result from periodic changes in the U.S. dollar/Japanese yen exchange rate. During 2017 and 2016, the Company also realized currency gains of $966,000 and $811,000, respectively, from the exercise of a U.S. Dollar/Japanese yen currency option within its foreign currency hedge.

Net loss for 2017 was $65.8 million, or $0.78 per share, compared to a net loss of $55.1 million, or $0.75 per share for the same period last year.

Cash, cash equivalents and investments totaled $159.0 million at December 31, 2017, and reflect an increase from $65.1 million at December 31, 2016. Net operating cash use for 2017 was $41.8 million, which excludes $134.0 million of net proceeds from the March and September 2017 public offerings.

Clinical Development Update & Outlook

Enrollment in the 750 mg cohort of the Zenith-1 proof-of-concept Phase 2 clinical trial of a liquid formulation of BCX7353 for treatment of acute angioedema attacks in HAE has been completed and the 500 mg cohort is currently enrolling. We expect to report top-line results from the first cohort in the second half of 2018.

On January 5, 2018, BioCryst announced that it had advanced a discovery program exploring activin receptor-like kinase-2 (ALK2) inhibitors for treatment of Fibrodysplasia Ossificans Progressiva (FOP) into Investigational New Drug Application (IND) enabling nonclinical development. The Company’s optimized lead candidates, BCX9250 and BCX9499, are projected to enter Phase 1 clinical trials during the first half of 2019.

On January 22, 2018, BioCryst and Idera jointly announced the signing of a definitive merger agreement to create a company focused on the development and commercialization of medicines to serve patients suffering from rare diseases. The combined company will be renamed upon closing, and will be led by Vincent Milano, CEO of Idera. Jon Stonehouse will serve as a member of the Board of Directors. The transaction is subject to approval by the stockholders of both companies, as well as the satisfaction of customary closing conditions. The transaction is expected to be completed by the end of the second quarter of 2018.
Financial Outlook for 2018

Based upon development plans and the Company’s awarded government contracts, on a stand-alone basis, BioCryst expects its 2018 net operating cash use to be in the range of $67 to $90 million, and its 2018 operating expenses to be in the range of $85 to $110 million. The Company’s operating expense range excludes equity-based compensation expense due to the difficulty in reliably projecting this expense, as it is impacted by the volatility and price of the Company’s stock, as well as by the vesting of the Company’s outstanding performance-based stock options.

Company and Idera File Joint Preliminary Proxy Statement / Prospectus and Updated Merger Presentation

The Company also today provided an updated investor presentation regarding the proposed merger with Idera Pharmaceuticals, which was announced on January 22, 2018. The presentation and a joint preliminary proxy statement / prospectus were filed today with the U.S. Securities and Exchange Commission (the "SEC"), and both can be accessed by visiting the "Investors" section of the Company’s website at www.BioCryst.com.

Conference Call and Webcast

BioCryst’s leadership team will host a conference call and webcast Tuesday, February 27, 2018 at 11:00 a.m. Eastern Time to discuss these financial results and recent corporate developments. To participate in the conference call, please dial 1-877-303-8027 (United States) or 1-760-536-5165 (International). No passcode is needed for the call. The webcast can be accessed live or in archived form in the "Investors" section of the Company’s website at www.BioCryst.com. An accompanying slide presentation may also be accessed via the BioCryst website. Please connect to the website at least 15 minutes prior to the start of the conference call to ensure adequate time for any software download that may be necessary.

About BCX7353

Discovered by BioCryst, BCX7353 is a novel, oral, once-daily, selective inhibitor of plasma kallikrein currently in development for the prevention and treatment of angioedema attacks in patients diagnosed with HAE. BCX7353 has been generally safe and well tolerated in the Phase 2 APeX-1 clinical trial. BioCryst is also conducting the ongoing ZENITH-1 clinical trial. ZENITH-1 is a proof-of-concept Phase 2 clinical trial testing an oral liquid formulation of BCX7353 for the treatment of acute angioedema attacks.