<SEC-DOCUMENT>0001171843-19-001442.txt : 20190304
<SEC-HEADER>0001171843-19-001442.hdr.sgml : 20190304
<ACCEPTANCE-DATETIME>20190304072838
ACCESSION NUMBER:		0001171843-19-001442
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20190304
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20190304
DATE AS OF CHANGE:		20190304

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BIOCRYST PHARMACEUTICALS INC
		CENTRAL INDEX KEY:			0000882796
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				621413174
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-23186
		FILM NUMBER:		19651870

	BUSINESS ADDRESS:	
		STREET 1:		4505 EMPEROR BOULEVARD
		STREET 2:		SUITE 200
		CITY:			DURHAM
		STATE:			NC
		ZIP:			27703
		BUSINESS PHONE:		919-859-1302

	MAIL ADDRESS:	
		STREET 1:		4505 EMPEROR BOULEVARD
		STREET 2:		SUITE 200
		CITY:			DURHAM
		STATE:			NC
		ZIP:			27703
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>f8k_030419.htm
<DESCRIPTION>FORM 8-K
<TEXT>
<html><head><title></title></head><body><div style="margin-top: 3pt; margin-bottom: 12pt;"><div style="font-size: 1pt; border-top: Black 2.5pt solid; border-bottom: Black 1.1pt solid; width: 100%;"><font style="font-size: 10pt;">&#160;</font></div></div><p style="text-align: center;"><font style="font-size: 14pt;"><strong>UNITED STATES</strong><br /><strong>SECURITIES AND EXCHANGE COMMISSION</strong><br /><strong>Washington, D.C. 20549</strong><br />_____________________</font></p><p style="text-transform: uppercase; text-align: center;"><font style="font-size: 14pt;"><strong>Form 8-K</strong><br />_____________________</font></p><p style="text-align: center;"><font style="font-size: 12pt;"><strong>CURRENT REPORT</strong></font></p><p style="text-align: center;"><font style="font-size: 12pt;"><strong>Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</strong></font></p><p align="center"><font style="font-size: 10pt;">Date of Report (Date of earliest event Reported): <!--March 4, 2019-->March 4, 2019 &#160;</font></p><p align="center"><font style="font-size: 12pt;"><strong>BioCryst Pharmaceuticals, Inc.</strong></font><br /><font style="font-size: 10pt;">(Exact Name of Registrant as Specified in Charter)</font></p><table style="width: 100%;" border="0" cellspacing="0" cellpadding="0"><tr valign="top"><td align="center" width="33%"><font style="font-size: 10pt;"><strong>Delaware</strong></font></td><td align="center" width="34%"><font style="font-size: 10pt;"><strong>000-23186</strong></font></td><td align="center" width="33%"><font style="font-size: 10pt;"><strong>62-1413174</strong></font></td></tr><tr valign="top"><td align="center" width="33%"><font style="font-size: 10pt;">(State or Other Jurisdiction of Incorporation)</font></td><td align="center" width="34%"><font style="font-size: 10pt;">(Commission File Number)</font></td><td align="center" width="33%"><font style="font-size: 10pt;">(I.R.S. 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[&#160;&#160; ]</p><div style="margin-top: 12pt; margin-bottom: 3pt;"><div style="font-size: 1pt; border-top: Black 1.1pt solid; border-bottom: Black 2.5pt solid; width: 100%;"><font style="font-size: 10pt;">&#160;</font></div>&#160;</div><hr style="page-break-after: always;" noshade="noshade" /><p><font style="font-size: 10pt;">  <strong>  </strong></font></p><p><font style="font-size: 10pt;"><strong>Item 2.02. Results of Operations and Financial Condition.</strong></font></p><p><font style="font-size: 10pt;"><p align="left" style="margin-left:0in; margin-right:0in;"><font><font style="font-size:10pt;">On March 4, 2019, BioCryst Pharmaceuticals, Inc. (the &#8220;Company&#8221;) issued a news release announcing recent corporate developments and its financial results for the year ended December 31, 2018, which also referenced a conference call and webcast to discuss these recent corporate developments and financial results. A copy of the news release is furnished as Exhibit 99.1 hereto and is incorporated herein by reference. </font></font></p></font></p><p><font style="font-size: 10pt;"><strong>  </strong></font></p><p><font style="font-size: 10pt;"><strong>Item 7.01. Regulation FD Disclosure.</strong></font></p><p><font style="font-size: 10pt;"><p style="text-align: left; margin: 0in 0in 0.0001pt; font-size: 10pt; font-family: 'Times New Roman', serif;" align="left"><font><font style="font-size: 10.0pt;">On March 4, 2019, the company issued a news release announcing that the Company is advancing BCX9930, an oral Factor D inhibitor discovered and developed by the Company, into Phase 1 clinical development in the second quarter of 2019 for the treatment of complement-mediated diseases. A copy of the news release is furnished as Exhibit 99.2 hereto.</font></font></p><p style="text-align: left; margin: 0in 0in 0.0001pt; font-size: 10pt; font-family: 'Times New Roman', serif;" align="left"><font><font style="font-size: 10.0pt;">&#160;</font></font></p><p style="text-align: left; margin: 0in 0in 0.0001pt; font-size: 10pt; font-family: 'Times New Roman', serif;" align="left"><font><font style="font-size: 10.0pt;">The information furnished on Exhibit 99.1 and Exhibits 99.2 is incorporated by reference under this Item 7.01 as if fully set forth herein.</font></font></p><p style="text-align: left; margin: 0in 0in 0.0001pt; font-size: 10pt; font-family: 'Times New Roman', serif;" align="left"><font><font style="font-size: 10.0pt;">&#160;</font></font></p><p style="text-align: left; margin: 0in 0in 0.0001pt; font-size: 10pt; font-family: 'Times New Roman', serif;" align="left"><font><font style="font-size: 10.0pt;">The information furnished is not deemed &#8220;filed&#8221; for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, is not subject to the liabilities of that section and is not deemed incorporated by reference in any filing under the Securities Act of 1933, as amended. </font></font></p><p style="text-align: left; margin: 0in 0in 0.0001pt; font-size: 10pt; font-family: 'Times New Roman', serif;" align="left"><font><font style="font-size: 10.0pt;">&#160;</font></font></p><p style="text-align: left; margin: 0in 0in 0.0001pt; font-size: 10pt; font-family: 'Times New Roman', serif;" align="left"><strong><font><font style="font-size: 10.0pt; font-weight: bold;">Forward-Looking Statements</font></font></strong></p><p style="text-align: left; margin: 0in 0in 0.0001pt; font-size: 10pt; font-family: 'Times New Roman', serif;" align="left"><font><font style="font-size: 10.0pt;">&#160;</font></font></p><p style="text-align: left; margin: 0in 0in 0.0001pt; font-size: 10pt; font-family: 'Times New Roman', serif;" align="left"><font><font style="font-size: 10.0pt;">This Current Report on Form 8-K contains forward-looking statements, including statements regarding future results, performance or achievements. These statements involve known and unknown risks, uncertainties and other factors which may cause BioCryst&#8217;s actual results, performance or achievements to be materially different from any future results, performances or achievements expressed or implied by the forward-looking statements. These statements reflect our current views with respect to future events and are based on assumptions and are subject to risks and uncertainties. Given these uncertainties, you should not place undue reliance on these forward-looking statements. Some of the factors that could affect the forward-looking statements contained herein include: that developing any HAE product candidate may take longer or may be more expensive than planned; that ongoing and future preclinical and clinical development of BCX9930, BCX9250 and our HAE second generation drug candidates (including APeX-2, APeX-S and APeX-J) may not have positive results; that BioCryst may not be able to enroll the required number of subjects in planned clinical trials of product candidates; that BioCryst may not advance human clinical trials with product candidates as expected; that the FDA, EMA or other applicable regulatory agency may require additional studies beyond the studies planned for product candidates, or may not provide regulatory clearances which may result in delay of planned clinical trials, or may impose a clinical hold with respect to such product candidate, or withhold market approval for product candidates; that actual financial results may not be consistent with expectations, including that 2019 operating expenses and cash usage may not be within management's expected ranges.&#160; Please refer to the documents BioCryst files periodically with the Securities and Exchange Commission, specifically BioCryst&#8217;s most recent Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K, all of which identify important factors that could cause the actual results to differ materially from those contained in BioCryst&#8217;s projections and forward-looking statements.</font></font></p></font></p><p><font style="font-size: 10pt;"><strong>  </strong></font></p><p><font style="font-size: 10pt;"><strong>Item 9.01. 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<TYPE>EX-99.1
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html lang="en-US"><head><title>EdgarFiling</title><meta content="text/html; charset=windows-1252" ><meta name="GENERATOR" content="MSHTML 8.00.7601.18094" ></head><body bgcolor="#ffffff"><p style="text-align: right;"><strong>EXHIBIT 99.1</strong></p><p style="text-align: center;"><font style="font-size: 14pt;"><strong>BioCryst Reports Fourth Quarter and Full Year 2018 Financial Results</strong></font></p><p style="text-align: center;"><strong></strong></p><p>
 <p align="center"><strong><em>&#8212;APeX-2 24-week safety and efficacy data of once-daily oral BCX7353 for prophylaxis of hereditary angioedema (HAE) attacks on-track for Q2 2019&#8212;</em></strong><br ></p>  <p align="center"><strong><em>&#8212;Full ZENITH-1 results confirm safety and efficacy profile of oral 750 mg BCX7353 for upcoming Phase 3 trial in acute treatment of HAE&#8212;</em></strong></p>  <p align="center"><strong><em>&#8212;Oral Factor D inhibitor, BCX9930, advancing to Phase 1 development for complement-mediated diseases&#8212;</em></strong><br ></p>  <p align="center"><strong><em>&#8212;Recent $100 million debt financing increases financial flexibility&#8212;</em></strong></p>  <p align="justify">RESEARCH TRIANGLE PARK, N.C., March  04, 2019  (GLOBE NEWSWIRE) -- BioCryst Pharmaceuticals, Inc. (Nasdaq:BCRX) today announced financial results for the fourth quarter and full year ended December 31, 2018, and provided a corporate update.</p>  <p align="justify">&#8220;In a year with many transformative milestones for BioCryst, it has been exciting to see so much progress already in the first two months of the year. The strong Phase 2 clinical data from our now-completed ZENITH-1 trial propels our BCX7353 acute program for HAE into Phase 3 development. With the very favorable preclinical profile of BCX9930, another novel BioCryst-invented oral drug for rare diseases, we are advancing that program into the clinic in the second quarter for the treatment of complement-mediated diseases. We also added further rare disease expertise to our board and increased our financial flexibility with a $100 million debt agreement,&#8221; said Jon Stonehouse, president and chief executive officer of BioCryst.</p>  <p align="justify">&#8220;We remain on-track for the readout of our APeX-2 trial next quarter, and an NDA filing of BCX7353 for HAE prophylaxis by the end of the year. We are thoughtfully building our commercial leadership and infrastructure to execute a successful launch that meets the urgent demand for a once-daily oral therapy that will allow HAE patients to live a more normal life,&#8221; Stonehouse added.</p>  <p align="justify"><strong>Recent Milestones</strong></p>  <ul type="disc"><li>The company has dosed the first patients in its APeX-J trial in Japan, designed to support potential Japanese approval of BCX7353 for the prevention of HAE attacks.<br >&#160;</li><li>On March 4, 2019, the company announced that it is advancing BCX9930, an oral Factor D inhibitor, into Phase 1 clinical development in the second quarter of 2019 for the treatment of complement-mediated diseases.</li></ul>  <ul type="disc"><li>On February 23, 2019, the company announced data from the completed ZENITH-1 trial (including the 250 mg and 500 mg dose cohorts) of BCX7353 for the acute treatment of&#160;HAE attacks at the annual meeting of the American Academy of Allergy, Asthma &amp; Immunology. The company plans to commence a Phase 3 trial, ZENITH-2, in the summer of 2019.<br >&#160;</li><li>On February 6, 2019, the company announced it had entered into a $100 million secured credit facility with MidCap Financial Trust pursuant to the terms and conditions of an amended and restated credit and security agreement. <br >&#160;</li><li>On January 4, 2019, the company announced it had appointed Steve Aselage to its board of directors.<br >&#160;</li><li>On January 2, 2019, the company announced the dosing of the first subject in a randomized, placebo-controlled Phase 1 clinical trial to evaluate intravenous galidesivir, its investigational broad-spectrum antiviral drug, in healthy volunteers.</li></ul>  <p><strong>Fourth Quarter 2018 Corporate Developments</strong><br ></p>  <ul type="disc"><li>On November 20, 2018, BioCryst announced that it had appointed Theresa Heggie to its board of directors.<br >&#160;</li><li>On November 16, 2018, BioCryst presented data that showed an oral formulation of BCX7353 was rapidly absorbed and exhibited a long half-life, two important characteristics of desired new acute treatments for HAE attacks, at the annual scientific meeting of the American College of Allergy, Asthma &amp; Immunology.</li></ul>  <p align="justify"><strong>Upcoming Key Milestones </strong><br ></p>  <p align="justify"><strong><em>HAE Program &#8211; BCX7353</em></strong></p>  <ul type="disc"><li style="text-align:justify;">Report 24-week safety and efficacy results from the APeX-2 clinical trial (Q2 2019) <br >&#160;</li><li style="text-align:justify;">Begin a Phase 3 clinical trial of oral BCX7353 for the acute treatment of HAE (Summer 2019)<br >&#160;</li><li style="text-align:justify;">File a new drug application (NDA) for oral BCX7353 for the prevention of HAE attacks with the U.S. Food and Drug Administration (FDA) (Q4 2019)</li></ul>  <p align="justify"><strong><em>Complement Factor D Inhibitor Program &#8211; BCX9930</em></strong></p>  <ul type="disc"><li style="text-align:justify;">Begin a Phase 1 trial of BCX9930, an oral Factor D inhibitor for treatment of complement-mediated diseases, in healthy subjects (Q2 2019) <br >&#160;</li><li style="text-align:justify;">Report Phase 1 results (Q4 2019)</li></ul>  <p align="justify"><strong><em>ALK-2 Inhibitor Program &#8211; BCX9250</em></strong></p>  <ul type="disc"><li style="text-align:justify;">Begin a Phase 1 clinical trial of BCX9250, an oral ALK-2 kinase inhibitor for treatment of fibrodysplasia ossificans progressiva, in healthy subjects (2H 2019)</li></ul>  <p><strong>Fourth Quarter 2018 Financial Results </strong></p>  <p align="justify">For the three months ended December 31, 2018, total revenues were $2.7 million, compared to $3.9 million in the fourth quarter of 2017. The decrease was primarily due to a reduction of royalty revenue associated with differences in the onset and severity of the influenza seasons between the two periods. This decrease was partially offset by increased revenue from government contracts for galidesivir development, which was higher in the fourth quarter of 2018.</p>  <p align="justify">Research and development (R&amp;D) expenses for the fourth quarter of 2018 increased to $23.4 million from $16.9&#160;million in the fourth quarter of 2017, primarily due to increased spending on the company&#8217;s HAE and preclinical programs.</p>  <p align="justify">General and administrative (G&amp;A) expenses for the fourth quarter of 2018 decreased slightly to $4.5 million, compared to $4.7&#160;million in the fourth quarter of 2017. The decrease was primarily due to the lack of merger-related costs in the fourth quarter of 2018 associated with the company&#8217;s terminated merger with Idera Pharmaceuticals, Inc. (Idera). The decrease in G&amp;A expense due to the lack of merger expenses was largely offset by higher commercial and medical affairs expenses in the fourth quarter of 2018.</p>  <p align="justify">Interest expense was $2.4&#160;million in the fourth quarter of 2018, compared to $2.2&#160;million in the fourth quarter of 2017 and was associated with enhancing our secured credit facility in July 2018.</p>  <p align="justify">Net loss for the fourth quarter of 2018 was $27.4&#160;million, or $0.25 per share, compared to a net loss of $19.5&#160;million, or $0.20 per share, for the fourth quarter of 2017.&#160;</p>  <p align="justify">Cash, cash equivalents and investments totaled $128.4 million at December 31, 2018, and reflect a decrease from $159.0 million at December 31, 2017. Cash and investments reflect the proceeds from a July 2018 enhancement to our secured credit facility and an August 2018 public equity offering, offset by normal operating expenses and merger-related costs incurred in the 12-month period. Operating cash use for the fourth quarter of 2018 was $22.6 million, and for the full year of 2018 was $93.4 million.</p>  <p align="justify">On February 6, 2019, the company announced it had entered into a $100 million secured credit facility with MidCap Financial Trust which further enhanced the company&#8217;s cash position with $20 million of immediate additional non-dilutive capital and provided additional financial flexibility by providing the ability to draw another $50 million of milestone-based non-dilutive capital.</p>  <p align="justify"><strong>Full Year 2018 Financial Results </strong></p>  <p align="justify">For the full year ended December 31, 2018, total revenues were $20.7 million, compared to $25.2 million in the full year ended December 31, 2017. 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The increase was primarily due to approximately $11 million of merger-related costs associated with the company&#8217;s terminated merger with Idera and a $4.9 million reserve for collectability of the EMA approval milestone of peramivir.</p>  <p align="justify">Interest expense was $9.2&#160;million in 2018, compared to $8.6&#160;million in 2017.</p>  <p align="justify">Net loss for 2018 was $101.3&#160;million, or $0.98 per share, compared to a net loss of $65.8&#160;million, or $0.78 per share, for 2017.&#160;</p>  <p align="justify"><strong>Financial </strong><strong>Outlook for 2019&#160; </strong></p>  <p align="justify">BioCryst expects net operating cash use to be in the range of $105 to $130 million, and its 2019 operating expenses to be in the range of $120 to $145 million. The company&#8217;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&#8217;s stock, as well as by the vesting of the company&#8217;s outstanding performance-based stock options.</p>  <p><strong>Conference Call and Webcast </strong></p>  <p align="justify">BioCryst management will host a conference call and webcast at 8:30 a.m. ET today to discuss the financial results and provide a corporate update. The live call may be accessed by dialing 877-303-8027 for domestic callers and 760-536-5165 for international callers and using conference ID # 1271286. A live webcast of the call and any slides will be available online at the investors section of the company website at www.biocryst.com. A telephone replay of the call will be available by dialing 855-859-2056 for domestic callers or 404-537-3406 for international callers and entering the conference ID# 1271286.</p>  <p><strong>About BioCryst Pharmaceuticals </strong></p>  <p align="justify">BioCryst Pharmaceuticals discovers novel, oral small-molecule medicines that treat rare diseases in which significant unmet medical needs exist and an enzyme plays a key role in the biological pathway of the disease. BioCryst has several ongoing development programs including BCX7353, an oral treatment for hereditary angioedema, BCX9930, an oral Factor D inhibitor for the treatment of complement-mediated diseases, galidesivir, a potential treatment for Marburg virus disease and Yellow Fever, and a preclinical program to develop oral ALK-2 inhibitors for the treatment of fibrodysplasia ossificans progressiva. RAPIVAB&#174; (peramivir injection), a viral neuraminidase inhibitor for the treatment of influenza, is BioCryst's first approved product and has received regulatory approval in the U.S., Canada, Australia, Japan, Taiwan, Korea and the European Union. Post-marketing commitments for RAPIVAB are ongoing. For more information, please visit the Company's website at www.BioCryst.com.</p>  <p><strong>Forward-Looking Statements </strong></p>  <p align="justify">This press release contains forward-looking statements, including statements regarding future results, performance or achievements. These statements involve known and unknown risks, uncertainties and other factors which may cause BioCryst&#8217;s actual results, performance or achievements to be materially different from any future results, performances or achievements expressed or implied by the forward-looking statements. These statements reflect our current views with respect to future events and are based on assumptions and are subject to risks and uncertainties. Given these uncertainties, you should not place undue reliance on these forward-looking statements. Some of the factors that could affect the forward-looking statements contained herein include: that developing any HAE product candidate may take longer or may be more expensive than planned; that ongoing and future preclinical and clinical development of BCX9930, BCX9250 and our HAE second generation drug candidates (including APeX-2, APeX-S and APeX-J) may not have positive results; that BioCryst may not be able to enroll the required number of subjects in planned clinical trials of product candidates; that the company may not advance human clinical trials with product candidates as expected; that the FDA, EMA or other applicable regulatory agency may require additional studies beyond the studies planned for product candidates, or may not provide regulatory clearances which may result in delay of planned clinical trials, or may impose a clinical hold with respect to such product candidate, or withhold market approval for product candidates; that actual financial results may not be consistent with expectations, including that 2019 operating expenses and cash usage may not be within management's expected ranges. Please refer to the documents BioCryst files periodically with the Securities and Exchange Commission, specifically BioCryst&#8217;s most recent Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K, all of which identify important factors that could cause the actual results to differ materially from those contained in BioCryst&#8217;s projections and forward-looking statements.</p>  <p>BCRXW</p>  <p><strong><u>Contact:</u></strong><br >John Bluth<br >+1 919 859 7910<br >jbluth@biocryst.com</p>  <p><br ></p> <table style="width:100%; border-collapse:collapse !important;;border-collapse: collapse; "><tr><td colspan="16" style="text-align: center ;  vertical-align: bottom; vertical-align: bottom ; "><strong>BIOCRYST PHARMACEUTICALS, INC.</strong><strong><br ></strong></td></tr><tr><td colspan="16" style="text-align: center ;  vertical-align: bottom; vertical-align: bottom ; "><strong>CONSOLIDATED FINANCIAL SUMMARY</strong><strong><br ></strong></td></tr><tr><td colspan="16" style="text-align: center ; 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">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="text-align: right ;  vertical-align: bottom; vertical-align: bottom ; ">84,451</td><td style="vertical-align: bottom ; ">&#160;</td></tr><tr><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td><td style="vertical-align: bottom ; ">&#160;</td></tr><tr><td style="text-align: left ; 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<p ></p><p style="text-align: right;"><strong>EXHIBIT 99.2</strong></p><p style="text-align: center;"><font style="font-size: 14pt;"><strong>BioCryst Advancing BCX9930, an Oral Factor D Inhibitor for Complement-Mediated Diseases, into Phase 1 Development</strong></font></p><p style="text-align: center;"><strong></strong></p><p>
 <p align="center"><strong><em>&#8212;BCX9930 shows high potency, specificity, suppression of hemolysis and wide safety margin in preclinical studies&#8212;</em></strong><br ></p>  <p align="center"><strong><em>&#8212;Could address multiple complement-mediated diseases of the kidney, blood and nervous system &#8212;</em></strong></p>  <p align="center"><strong><em>&#8212;Patients currently limited to intravenous (IV) infusion therapy, or no therapy &#8212;</em></strong></p>  <p align="center"><strong><em>&#8212;Phase 1 data expected in Q4 2019&#8212;</em></strong></p>  <p align="justify">RESEARCH TRIANGLE PARK, N.C., March  04, 2019  (GLOBE NEWSWIRE) -- BioCryst Pharmaceuticals, Inc. (Nasdaq: BCRX) today announced that the company is advancing BCX9930, an oral Factor D inhibitor discovered and developed by BioCryst, into Phase 1 clinical development in the second quarter of 2019 for the treatment of complement-mediated diseases.</p>  <p align="justify">The company plans to initiate a Phase 1 trial to study single and multiple ascending doses of oral BCX9930 in healthy subjects in the second quarter of 2019, and to report the results in the fourth quarter of 2019.</p>  <p align="justify">&#8220;Based on its outstanding preclinical profile, with high potency, excellent specificity for Factor D, complete suppression of complement-mediated hemolysis after oral dosing, and a wide safety margin, we are excited to advance oral BCX9930 into clinical development,&#8221; said Dr. William Sheridan, chief medical officer of BioCryst.</p>  <p align="justify">&#8220;The BioCryst R&amp;D team has established a proven and proprietary expertise to discover and develop first in class or best in class oral medicines for rare diseases.&#160; These are difficult targets to design oral medicines for and we have now successfully developed multiple compounds for three rare diseases, hereditary angioedema (HAE), complement-mediated diseases and fibrodysplasia ossificans progressiva&#160;(FOP),&#8221; said Jon Stonehouse, chief executive officer of BioCryst.</p>  <p align="justify"><strong>Preclinical Profile of BCX9930 </strong></p>  <ul type="disc"><li>In preclinical in-vivo studies of complement activity in the blood, oral dosing of BCX9930 completely suppressed complement-mediated hemolysis.<br >&#160;</li><li>In preclinical in-vitro studies of red blood cells from patients with paroxysmal nocturnal hemoglobinuria (PNH), BCX9930 completely suppressed complement-mediated hemolysis, and completely blocked deposition of complement enzyme C3 fragments on PNH red blood cells.<br >&#160;</li><li>In preclinical in-vitro studies, BCX9930 demonstrated significant activity at low drug concentrations in several well-established complement activity assays. <br >&#160;</li><li>In preclinical in-vitro assays, BCX9930 was more potent on Factor D by approximately 200-fold to more than 3000-fold compared with other serine protease enzymes outside the complement pathway.<br >&#160;</li><li>In preclinical oral dosing studies, drug exposure increased in proportion to dose, and high drug levels were achieved.<br >&#160;</li><li>In preclinical in-vivo safety pharmacology and toxicology studies, drug concentrations at the no observed adverse event level (NOAEL) doses of BCX9930 were more than 500-fold greater than the estimated therapeutic target level.</li></ul>  <p align="justify">&#8220;Existing IV infusion therapy for complement-mediated diseases currently generates more than $3 billion in annual global sales with approvals in just a few of the many potential disease areas. With full global rights to a BioCryst-invented oral Factor D inhibitor, and relatively quick proof of concept, we look forward to advancing BCX9930 to address multiple complement-mediated diseases,&#8221; Stonehouse added.&#160;&#160;</p>  <p align="justify"><strong>About Complement-Mediated Diseases</strong></p>  <p align="justify">The complement system is part of the body&#8217;s natural immune system and is responsible for helping the body eliminate microbes (including viral and bacterial infections) and damaged cells. It is comprised of proteins which are primarily produced in the liver and circulate in the blood. Once activated, the complement system stimulates inflammation, phagocytosis and cell lysis.</p>  <p align="justify">Excessive or uncontrolled activation of the complement system can cause severe, and potentially fatal, immune and inflammatory disorders.</p>  <p align="justify">The complement system comprises biological cascades of amplifying enzyme cleavages involving more than 30 proteins and protein fragments, and may be activated through three pathways: the classical pathway (initiated by antibody-antigen complexes), the lectin pathway (initiated by lectin binding) and the alternative pathway (initiated by microbial surfaces).</p>  <p align="justify">The alternative pathway also provides a critical amplification loop for all three pathways, regardless of the initiating mechanism. Factor D is an essential enzyme in the alternative pathway, thus making Factor D an attractive target to address complement-mediated diseases.</p>  <p align="justify"><strong>About BCX9930</strong></p>  <p align="justify">Discovered by BioCryst, BCX9930 is a novel, oral, potent and selective small molecule inhibitor of Factor&#160;D currently advancing into Phase 1 clinical development for the treatment of complement-mediated diseases. Patients with complement-mediated diseases, many of which can cause death or severe morbidity, currently either have no treatments available, or are limited to repeated intravenous infusion treatments. The company plans to initiate a Phase 1 clinical trial of oral BCX9930 in the second quarter of 2019 and to report the results in the fourth quarter of 2019.</p>  <p align="justify"><strong>About BioCryst Pharmaceuticals </strong></p>  <p align="justify">BioCryst Pharmaceuticals discovers novel, oral small-molecule medicines that treat rare diseases in which significant unmet medical needs exist and an enzyme plays a key role in the biological pathway of the disease. BioCryst has several ongoing development programs including BCX7353, an oral treatment for hereditary angioedema, BCX9930, an oral Factor D inhibitor for the treatment of complement-mediated diseases, galidesivir, a potential treatment for Marburg virus disease and Yellow Fever, and a preclinical program to develop oral ALK-2 inhibitors for the treatment of fibrodysplasia ossificans progressiva. RAPIVAB<sup>&#174;</sup> (peramivir injection), a viral neuraminidase inhibitor for the treatment of influenza, is BioCryst's first approved product and has received regulatory approval in the U.S., Canada, Australia, Japan, Taiwan, Korea and the European Union. Post-marketing commitments for RAPIVAB are ongoing. For more information, please visit the Company's website at www.BioCryst.com.</p>  <p><strong>Forward-Looking Statements </strong></p>  <p align="justify">This press release contains forward-looking statements, including statements regarding future results, performance or achievements. These statements involve known and unknown risks, uncertainties and other factors which may cause BioCryst&#8217;s actual results, performance or achievements to be materially different from any future results, performances or achievements expressed or implied by the forward-looking statements. These statements reflect our current views with respect to future events and are based on assumptions and are subject to risks and uncertainties. Given these uncertainties, you should not place undue reliance on these forward-looking statements. Some of the factors that could affect the forward-looking statements contained herein include: that developing BCX9930 may take longer or may be more expensive than planned; that ongoing and future preclinical and clinical development of BCX9930 may not advance as expected, enroll the required number of subjects or have positive results; that the FDA, EMA or other applicable regulatory agency may require additional studies beyond the studies planned, may not provide regulatory clearances, may impose a clinical hold or may withhold market approval with respect to BCX9930.&#160; Please refer to the documents BioCryst files periodically with the Securities and Exchange Commission, specifically BioCryst&#8217;s most recent Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K, all of which identify important factors that could cause the actual results to differ materially from those contained in BioCryst&#8217;s projections and forward-looking statements.</p>  <p align="justify">BCRXW</p>  <p><strong><u>Contact:</u></strong><br >John Bluth<br >+1 919 859 7910<br >jbluth@biocryst.com</p>  <p>&#160;<br ></p> </p><p ></p>
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