<SEC-DOCUMENT>0001104659-20-128723.txt : 20201124
<SEC-HEADER>0001104659-20-128723.hdr.sgml : 20201124
<ACCEPTANCE-DATETIME>20201124070521
ACCESSION NUMBER:		0001104659-20-128723
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20201123
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20201124
DATE AS OF CHANGE:		20201124

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Synthetic Biologics, Inc.
		CENTRAL INDEX KEY:			0000894158
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				133808303
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12584
		FILM NUMBER:		201339862

	BUSINESS ADDRESS:	
		STREET 1:		9605 MEDICAL CENTER DRIVE
		STREET 2:		SUITE 270
		CITY:			ROCKVILLE
		STATE:			MD
		ZIP:			20850
		BUSINESS PHONE:		(734) 332-7800

	MAIL ADDRESS:	
		STREET 1:		9605 MEDICAL CENTER DRIVE
		STREET 2:		SUITE 270
		CITY:			ROCKVILLE
		STATE:			MD
		ZIP:			20850

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ADEONA PHARMACEUTICALS, INC.
		DATE OF NAME CHANGE:	20081027

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PIPEX PHARMACEUTICALS, INC.
		DATE OF NAME CHANGE:	20061214

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SHEFFIELD PHARMACEUTICALS INC
		DATE OF NAME CHANGE:	19970730
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>tm2036986d1_8k.htm
<DESCRIPTION>FORM 8-K
<TEXT>
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<!-- Field: Rule-Page --><DIV STYLE="margin-top: 12pt; margin-bottom: 3pt; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 2pt solid; border-bottom: Black 1pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>WASHINGTON, D.C. 20549</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM 8-K</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CURRENT REPORT</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Pursuant to Section 13 or 15(d)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>of the Securities Exchange Act of 1934</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Date of Report (Date of earliest event
reported):&nbsp;November 23, 2020</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 14pt"><B>SYNTHETIC
BIOLOGICS, INC.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Exact name of registrant as specified in
its charter)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
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    <TD STYLE="width: 32%; border-bottom: black 1pt solid; padding-right: 0.8pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Nevada</B></FONT></TD>
    <TD STYLE="width: 2%; padding-right: 0.8pt; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 32%; border-bottom: black 1pt solid; padding-right: 0.8pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>001-12584</B></FONT></TD>
    <TD STYLE="width: 2%; padding-right: 0.8pt; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 32%; border-bottom: black 1pt solid; padding-right: 0.8pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>13-3808303</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.8pt 0pt 0; text-align: center">(State or other jurisdiction of</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.8pt 0pt 0; text-align: center">incorporation)</P></TD>
    <TD STYLE="padding-right: 0.8pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Commission File No.)</FONT></TD>
    <TD STYLE="padding-right: 0.8pt; text-align: center">&nbsp;</TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.8pt 0pt 0; text-align: center">(IRS Employer Identification</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.8pt 0pt 0; text-align: center">No.)</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>9605 Medical Center Drive, Suite 270</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Rockville, Maryland 20850</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Address of principal executive offices
and zip code)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(301) 417-4364</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Registrant&rsquo;s telephone number, including
area code</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>N/A</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Former name or former address, if changed
since last report)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Check the appropriate box below if the
Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions
(see General Instruction A.2. below):</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 5%; padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="width: 2%; padding-right: 0.8pt"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&uml;</FONT></TD>
    <TD STYLE="width: 93%; padding-right: 0.8pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 5%; padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="width: 2%; padding-right: 0.8pt"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&uml;</FONT></TD>
    <TD STYLE="width: 93%; padding-right: 0.8pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 5%; padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="width: 2%; padding-right: 0.8pt"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&uml;</FONT></TD>
    <TD STYLE="width: 93%; padding-right: 0.8pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 5%; padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="width: 2%; padding-right: 0.8pt"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&uml;</FONT></TD>
    <TD STYLE="width: 93%; padding-right: 0.8pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Securities registered pursuant to Section
12(b) of the Act:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 32%; border: black 1pt solid; padding-left: 6.65pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Title of each class</B></FONT></TD>
    <TD STYLE="width: 36%; border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 4.85pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Trading Symbol(s)</B></FONT></TD>
    <TD STYLE="width: 32%; border-top: black 1pt solid; border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 4.85pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Name of each exchange on which registered</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; border-left: black 1pt solid; padding-left: 6.65pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Common stock, par value $0.001 per share</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 4.85pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SYN</FONT></TD>
    <TD STYLE="border-right: black 1pt solid; border-bottom: black 1pt solid; padding-left: 4.85pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NYSE American</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Indicate by check mark whether the registrant
is an emerging growth company as defined in in Rule 405 of the Securities Act of 1933 (17 CFR &sect;230.405 of this chapter) or
Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR &sect;240.12b-2 of this chapter).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif">Emerging
growth company&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&uml;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">If
an emerging growth company, indicate by checkmark if the registrant has elected not to use the extended transition period for complying
with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.&nbsp;</FONT><FONT STYLE="font-family: Wingdings">&uml;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 1in; text-align: left"><B>Item 8.01.</B></TD><TD STYLE="text-align: justify"><B>Other Events.</B></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">On November 24, 2020, Synthetic Biologics,
Inc. (the &ldquo;Company&rdquo;) announced that the NYSE American LLC (&ldquo;NYSE American&rdquo;), the Company&rsquo;s current
listing exchange, notified the Company that it had been granted an extension until May 25, 2021 to regain compliance with certain
continued listing standards as set forth in Sections 1003(a)(i), (ii) and (iii) of the NYSE American Company Guide.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Company previously presented its plan
of compliance to the NYSE American on December 19, 2019 in response to a notice dated November 25, 2019 that the Company was below
compliance with certain NYSE American continued listing standards, as set forth in Section 1003(a)(iii) of the NYSE American Company
Guide, since it reported stockholder&rsquo;s equity of $6 million or less as of September 30, 2019 and losses from continuing operations
and/or net losses in five of its most recent fiscal years. On February 7, 2020 the NYSE American notified the Company that it accepted
the Company&rsquo;s plan to regain compliance before November 25, 2020, the end of the compliance plan period. This date has now
been extended to May 25, 2021. The Company will remain subject to periodic review by NYSE American staff during the extension period.
Failure to make progress consistent with the plan or regain compliance with the continued listing standards by the end of the extension
period could result in the Company being delisted from the NYSE American.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>&nbsp;</B></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 1in; text-align: left"><B>Item 9.01.</B></TD><TD STYLE="text-align: justify"><B>Financial Statements and Exhibits.</B></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.45in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 4%; padding-right: 0.8pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)&nbsp;&nbsp;</FONT></TD>
    <TD STYLE="width: 96%; padding-right: 0.8pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Exhibits.</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.45in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.45in">The following exhibits
are filed with this Current Report on Form 8-K.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.45in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR>
    <TD STYLE="vertical-align: bottom; width: 10%; border-bottom: black 1pt solid; padding-right: 0.8pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exhibit<BR>
Number</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 1%; padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; width: 89%; border-bottom: black 1pt solid; padding-right: 0.8pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Description</B></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; text-align: center">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; padding-right: 0.8pt; text-align: center"><A HREF="tm2036986d1_ex99-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">99.1</FONT></A></TD>
    <TD STYLE="vertical-align: bottom; padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-right: 0.8pt"><A HREF="tm2036986d1_ex99-1.htm" STYLE="-sec-extract: exhibit"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Press Release dated November 24, 2020</FONT></A></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SIGNATURES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.45in">Pursuant to the requirements
of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned
hereunto duly authorized.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Dated: November 24, 2020</FONT></TD>
    <TD COLSPAN="3" STYLE="padding-right: 2.8pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SYNTHETIC BIOLOGICS, INC.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="width: 3%; padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="width: 7%; padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="width: 40%; padding-right: 0.8pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: black 1pt solid; padding-right: 1.8pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Steven A. Shallcross</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name:</FONT></TD>
    <TD STYLE="padding-right: 0.8pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Steven A. Shallcross</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title:</FONT></TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 1.5pt 0pt 0">Chief Executive Officer</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 1.5pt 0pt 0">and Chief Financial Officer</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<TYPE>EX-99.1
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<FILENAME>tm2036986d1_ex99-1.htm
<DESCRIPTION>EXHIBIT 99.1
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><B>Exhibit 99.1</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Synthetic Biologics Announces Extension
of Compliance Plan Period by NYSE American</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="color: windowtext"><B>Rockville,
MD, November 24, 2020 &ndash;</B></FONT> <U>Synthetic Biologics, Inc.</U> <FONT STYLE="color: windowtext">(NYSE American: SYN),
</FONT>a diversified clinical-stage company leveraging the microbiome to develop therapeutics designed to prevent and treat gastrointestinal
(GI) diseases in areas of high unmet need, <FONT STYLE="color: windowtext">today announced that on November 23, 2020, the NYSE
American LLC (&ldquo;NYSE American&rdquo;), the Company&rsquo;s current listing exchange, notified the Company that it had been
granted an extension until May 25, 2021 to regain compliance with certain continued listing standards as set forth in Sections
1003(a)(i), (ii) and (iii) of the NYSE American Company Guide. </FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The Company previously presented its plan
of compliance to the NYSE American on December 19, 2019 in response to a notice dated November 25, 2019 that the Company was below
compliance with certain NYSE American continued listing standards, as set forth in Section 1003(a)(iii) of the NYSE American Company
Guide, since it reported stockholder&rsquo;s equity of $6 million or less as of September 30, 2019 and losses from continuing operations
and/or net losses in five of its most recent fiscal years. On February 7, 2020 the NYSE American notified the Company that it accepted
the Company&rsquo;s plan to regain compliance before November 25, 2020, the end of the compliance plan period. This date has now
been extended to May 25, 2021. The Company will remain subject to periodic review by NYSE American staff during the extension period.
Failure to make progress consistent with the plan or regain compliance with the continued listing standards by the end of the extension
period could result in the Company being delisted from the NYSE American.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>About Synthetic Biologics, Inc.</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Synthetic Biologics, Inc. (NYSE American:
SYN) is a diversified clinical-stage company leveraging the microbiome to develop therapeutics designed to prevent and treat gastrointestinal
(GI) diseases in areas of high unmet need. The Company&rsquo;s lead candidates are: (1) SYN-004 (ribaxamase) which is designed
to degrade certain commonly used intravenous (IV) beta-lactam antibiotics within the gastrointestinal (GI) tract to prevent (a)
microbiome damage, (b) <I>Clostridioides difficile</I> infection (CDI), (c) overgrowth of pathogenic organisms, (d) the emergence
of antimicrobial resistance (AMR) and (e) acute graft-versus-host-disease (aGVHD) in allogeneic hematopoietic cell transplant
(HCT) recipients, and (2) SYN-020, a recombinant oral formulation of the enzyme intestinal alkaline phosphatase (IAP) produced
under cGMP conditions and intended to treat both local GI and systemic diseases. For more information, please visit Synthetic
Biologics' website at <U>www.syntheticbiologics.com</U>.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><I>&nbsp;</I></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><I>This release contains forward-looking
statements within the meaning of the Private Securities Litigation Reform Act of 1995. In some cases forward-looking statements
can be identified by terminology such as &quot;may,&quot; &quot;should,&quot; &quot;potential,&quot; &quot;continue,&quot; &quot;expects,&quot;
 &quot;anticipates,&quot; &quot;intends,&quot; &quot;plans,&quot; &quot;believes,&quot; &quot;estimates,&quot; and similar expressions,
and include statements regarding plans to regain compliance with the continued listing standards by the end of the extension period.
These forward-looking statements are based on management&rsquo;s expectations and assumptions as of the date of this press release
and are subject to a number of risks and uncertainties, many of which are difficult to predict that could cause actual results
to differ materially from current expectations and assumptions from those set forth or implied by any forward-looking statements.
Important factors that could cause actual results to differ materially from current expectations include, among others, the ability
to regain compliance with the continued listing standards by the end of the extension period, the ability to engage in <FONT STYLE="background-color: white">a
potential acquisition, merger, reverse merger, other business combination, sales of assets, licensing or other strategic transactions
involving the Company</FONT>, ability to obtain FDA clearance of the IND for the SYN-020 program, a failure of additional pre-clinical
studies of SYN-020 to achieve similar results to those previously achieved or to provide support for exercise of the option, the
ability to enter into a license to advance an expanded clinical development program for SYN-020, a failure to receive the necessary
regulatory approvals for commercialization of Synthetic Biologics&rsquo; therapeutics, a failure of Synthetic Biologics&rsquo;
clinical trials, and those conducted by investigators, for SYN-004 and SYN-010 to be commenced or completed on time or to achieve
desired results and benefits, especially in light of COVID-19, a failure of Synthetic Biologics&rsquo; clinical trials to continue
enrollment as expected or receive anticipated funding, a failure of Synthetic Biologics to successfully develop, market or sell
its products, Synthetic Biologics&rsquo; inability to maintain its material licensing agreements, or a failure by Synthetic Biologics
or its strategic partners to successfully commercialize products and other factors described in Synthetic Biologics&rsquo; Annual
Report on Form 10-K for the year ended December 31, 2019 and its other filings with the SEC, including subsequent periodic reports
on Forms 10-Q and 8-K. The information in this release is provided only as of the date of this release, and Synthetic Biologics
undertakes no obligation to update any forward-looking statements contained in this release on account of new information, future
events, or otherwise, except as required by law.</I></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><I>&nbsp;</I></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>For further information, please contact:</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Synthetic Biologics, Inc. (Corporate and
Investors)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Vincent I. Perrone, Director Corporate Communication, (240)
660-2000, <U>info@syntheticbiologics.com</U></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"># # #</P>

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