<SEC-DOCUMENT>0001144204-17-009139.txt : 20170222
<SEC-HEADER>0001144204-17-009139.hdr.sgml : 20170222
<ACCEPTANCE-DATETIME>20170214192123
ACCESSION NUMBER:		0001144204-17-009139
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20170214
DATE AS OF CHANGE:		20170221
GROUP MEMBERS:		PETER KOLCHINSKY
GROUP MEMBERS:		RA CAPITAL HEALTHCARE FUND, L.P.

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Cidara Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001610618
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				461537286
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-88806
		FILM NUMBER:		17612276

	BUSINESS ADDRESS:	
		STREET 1:		6310 NANCY RIDGE DRIVE
		STREET 2:		SUITE 101
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		858-752-6170

	MAIL ADDRESS:	
		STREET 1:		6310 NANCY RIDGE DRIVE
		STREET 2:		SUITE 101
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	K2 THERAPEUTICS, INC.
		DATE OF NAME CHANGE:	20140611

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RA CAPITAL MANAGEMENT, LLC
		CENTRAL INDEX KEY:			0001346824
		IRS NUMBER:				830406777
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		20 PARK PLAZA, SUITE 1200
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		617-778-2500

	MAIL ADDRESS:	
		STREET 1:		20 PARK PLAZA, SUITE 1200
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>v459120_sc13ga.htm
<DESCRIPTION>SC 13G/A
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin: 0"></P>

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

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION<BR>
Washington, D.C. 20549</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: center"><B>SCHEDULE 13G</B></P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><B>(Amendment No. 2)*</B></P>

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

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
    <td style="width: 100%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: center; font-weight: bold">Cidara Therapeutics, Inc.</td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt; text-align: center">(Name of Issuer)</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
    <td style="width: 100%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: center"><B>Common Stock, par value $0.0001 per share</B></td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt; text-align: center">(Title of Class of Securities)</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
    <td style="width: 100%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: center"><B>171757107</B></td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt; text-align: center">(CUSIP Number)</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

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

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
    <td style="width: 100%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: center"><B>December 31, 2016</B></td></tr>
<tr style="vertical-align: top">
    <td style="font-size: 10pt; text-align: center">(Date of Event Which Requires Filing of this Statement)</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">Check the appropriate box to designate the rule pursuant to
which this Schedule is filed:</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr>
    <TD STYLE="vertical-align: top; width: 0.25in; font-size: 10pt">&nbsp;</td>
    <TD STYLE="width: 0.25in; font-size: 10pt"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&uml;</FONT></td>
    <TD STYLE="font-size: 10pt">Rule 13d-1(b)</td></tr>
<tr>
    <TD STYLE="vertical-align: top; font-size: 10pt">&nbsp;</td>
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-family: Wingdings; font-size: 10pt">x</FONT></td>
    <TD STYLE="font-size: 10pt">Rule 13d-1(c)</td></tr>
<tr>
    <TD STYLE="vertical-align: top; font-size: 10pt">&nbsp;</td>
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&uml;</FONT></td>
    <TD STYLE="font-size: 10pt">Rule 13d-1(d)</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">*The remainder of this cover page shall
be filled out for a reporting person&rsquo;s initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.</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 information required in the remainder
of this cover page shall not be deemed to be &ldquo;filed&rdquo; for the purpose of Section 18 of the Securities Exchange Act
of 1934 (&ldquo;<B><I>Act</I></B>&rdquo;) or otherwise subject to the liabilities of that section of the Act but shall be subject
to all other provisions of the Act (however, see the Notes).</P>

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


<!-- Field: Page; Sequence: 1 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<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>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr>
    <td style="width: 67%; padding: 1.45pt 3pt; font-size: 10pt"><FONT STYLE="font-size: 10pt">CUSIP No. </FONT><B>171757107</B></td>
    <td style="width: 33%; padding: 1.45pt 3pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>13G</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="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr>
    <td style="border-top: Black 1pt solid; border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; border-top: Black 1pt solid; border-bottom: Black 1pt solid; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">1.</FONT></td>
    <td colspan="3" style="border-top: Black 1pt solid; border-bottom: Black 1pt solid; padding: 1.45pt 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Names of Reporting Persons.</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">I.R.S. Identification Nos. of above persons (entities
        only).</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>RA Capital Management, LLC</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>&nbsp;</B></P></td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">2. </FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Check the Appropriate Box if a Member of a Group
    (See Instructions)</FONT></td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">(a)</FONT></td>
    <td colspan="2"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&uml;</FONT></td></tr>
<tr>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <TD STYLE="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">(b)</FONT></td>
    <td colspan="2"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&uml;</FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">3.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">SEC Use Only </FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">4.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Citizenship or Place of Organization&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>&nbsp;<FONT STYLE="font-size: 10pt"><B>Massachusetts</B></FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid">&nbsp;</td></tr>
<tr>
    <td colspan="3" rowspan="7" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Number of</FONT><br>
    <FONT STYLE="font-size: 10pt">Shares</FONT><br>
    <FONT STYLE="font-size: 10pt">Beneficially</FONT><br>
    <FONT STYLE="font-size: 10pt">Owned by</FONT><br>
    <FONT STYLE="font-size: 10pt">Each Reporting</FONT><br>
    <FONT STYLE="font-size: 10pt">Person With</FONT></td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">5.</FONT></td>
    <td><FONT STYLE="font-size: 10pt">Sole Voting Power&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>0
    shares</B></FONT></td></tr>
<tr>
    <td colspan="2" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">6.</FONT></td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Shared Voting Power&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>0
shares</B></FONT></td></tr>
<tr>
    <td colspan="2" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">7.</FONT></td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Sole Dispositive Power&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>0
    shares</B></FONT></td></tr>
<tr>
    <td colspan="2" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">8.</FONT></td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Shared Dispositive Power&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>0
    shares</B></FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">9.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting
        Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>0 shares</B></P></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">10.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Check if the Aggregate Amount in Row (9) Excludes
    Certain Shares (See Instructions)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&uml;</FONT></FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">11.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>0.0% </B></P></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">12.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person (See Instructions)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>IA</B></P></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>


<!-- Field: Page; Sequence: 2 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

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

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

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr>
    <td style="width: 67%; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">CUSIP No. </FONT><B>171757107</B></td>
    <td style="width: 33%; padding: 1.45pt 3pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>13G</B></FONT></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

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

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr>
    <td style="border-top: Black 1pt solid; border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; border-top: Black 1pt solid; border-bottom: Black 1pt solid; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">1.</FONT></td>
    <td colspan="3" style="border-top: Black 1pt solid; border-bottom: Black 1pt solid; padding: 1.45pt 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Names of Reporting Persons.</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">I.R.S. Identification Nos. of above persons (entities
        only).</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>Peter Kolchinsky</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>&nbsp;</B></P></td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">2. </FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Check the Appropriate Box if a Member of a Group
    (See Instructions)</FONT></td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">(a)</FONT></td>
    <td colspan="2"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&uml;</FONT></td></tr>
<tr>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <TD STYLE="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">(b)</FONT></td>
    <td colspan="2"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&uml;</FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">3.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">SEC Use Only </FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">4.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Citizenship or Place of Organization&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>&nbsp;<FONT STYLE="font-size: 10pt"><B>United States</B></FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid">&nbsp;</td></tr>
<tr>
    <td colspan="3" rowspan="7" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Number of</FONT><br>
    <FONT STYLE="font-size: 10pt">Shares</FONT><br>
    <FONT STYLE="font-size: 10pt">Beneficially</FONT><br>
    <FONT STYLE="font-size: 10pt">Owned by</FONT><br>
    <FONT STYLE="font-size: 10pt">Each Reporting</FONT><br>
    <FONT STYLE="font-size: 10pt">Person With</FONT></td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">5.</FONT></td>
    <td><FONT STYLE="font-size: 10pt">Sole Voting Power&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>0
shares</B></FONT></td></tr>
<tr>
    <td colspan="2" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">6.</FONT></td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Shared Voting Power&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>0
    shares</B></FONT></td></tr>
<tr>
    <td colspan="2" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">7.</FONT></td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Sole Dispositive Power&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>0
    shares</B></FONT></td></tr>
<tr>
    <td colspan="2" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">8.</FONT></td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Shared Dispositive Power&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>0
    shares</B></FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">9.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting
        Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>0 shares</B></P></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">10.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Check if the Aggregate Amount in Row (9) Excludes
    Certain Shares (See Instructions)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&uml;</FONT></FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">11.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>0.0% </B></P></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">12.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person (See Instructions)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>IN</B></P></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>


<!-- Field: Page; Sequence: 3 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

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

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

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr>
    <td style="width: 67%; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">CUSIP No. </FONT><B>171757107</B></td>
    <td style="width: 33%; padding: 1.45pt 3pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>13G</B></FONT></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

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

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr>
    <td style="border-top: Black 1pt solid; border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; border-top: Black 1pt solid; border-bottom: Black 1pt solid; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">1.</FONT></td>
    <td colspan="3" style="border-top: Black 1pt solid; border-bottom: Black 1pt solid; padding: 1.45pt 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Names of Reporting Persons.</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">I.R.S. Identification Nos. of above persons (entities
        only).</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>RA Capital Healthcare Fund, L.P.</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>&nbsp;</B></P></td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">2. </FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Check the Appropriate Box if a Member of a Group
    (See Instructions)</FONT></td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">(a)</FONT></td>
    <td colspan="2"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&uml;</FONT></td></tr>
<tr>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
    <TD STYLE="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">(b)</FONT></td>
    <td colspan="2"><FONT STYLE="font-family: Wingdings; font-size: 10pt">&uml;</FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">3.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">SEC Use Only </FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">4.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Citizenship or Place of Organization&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>&nbsp;<FONT STYLE="font-size: 10pt"><B>Delaware</B></FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid">&nbsp;</td></tr>
<tr>
    <td colspan="3" rowspan="7" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Number of</FONT><br>
    <FONT STYLE="font-size: 10pt">Shares</FONT><br>
    <FONT STYLE="font-size: 10pt">Beneficially</FONT><br>
    <FONT STYLE="font-size: 10pt">Owned by</FONT><br>
    <FONT STYLE="font-size: 10pt">Each Reporting</FONT><br>
    <FONT STYLE="font-size: 10pt">Person With</FONT></td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">5.</FONT></td>
    <td><FONT STYLE="font-size: 10pt">Sole Voting Power&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>0
    shares</B></FONT></td></tr>
<tr>
    <td colspan="2" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">6.</FONT></td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Shared Voting Power&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>0
    shares</B></FONT></td></tr>
<tr>
    <td colspan="2" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">7.</FONT></td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Sole Dispositive Power&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>0
    shares</B></FONT></td></tr>
<tr>
    <td colspan="2" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">8.</FONT></td>
    <td style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Shared Dispositive Power&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>0
    shares</B></FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">9.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Aggregate Amount Beneficially Owned by Each Reporting
        Person</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>0 shares</B></P></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">10.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">Check if the Aggregate Amount in Row (9) Excludes
    Certain Shares (See Instructions)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT STYLE="font-family: Wingdings">&uml;</FONT></FONT></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">11.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class Represented by Amount in Row (9)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>0.0% </B></P></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
<tr>
    <td style="padding: 1.45pt 3pt">&nbsp;</td>
    <td style="vertical-align: top; padding: 1.45pt 3pt"><FONT STYLE="font-size: 10pt">12.</FONT></td>
    <td colspan="3" style="padding: 1.45pt 3pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Type of Reporting Person (See Instructions)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.25in"><B>PN (Limited Partnership)</B></P></td></tr>
<tr>
    <td colspan="5" style="border-bottom: Black 1pt solid; padding: 1.45pt 3pt">&nbsp;</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>


<!-- Field: Page; Sequence: 4 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

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

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

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr>
    <td style="width: 67%; padding: 1.45pt 3pt; font-size: 10pt"><FONT STYLE="font-size: 10pt">CUSIP No. </FONT><B>171757107</B></td>
    <td style="width: 33%; padding: 1.45pt 3pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>13G</B></FONT></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item 1.</B></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">(a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Name
of Issuer:</B> Cidara Therapeutics, Inc. (the &ldquo;Issuer&rdquo;).</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)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Address
of the Issuer&rsquo;s Principal Executive Offices:</B> 6310 Nancy Ridge Drive, Suite 101, San Diego, CA 92121.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Item 2.</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in">(a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Name
of Person Filing: </B> This joint statement on Schedule 13G is being filed by RA Capital Management, LLC (&ldquo;Capital&rdquo;),
Peter Kolchinsky and RA Capital Healthcare Fund, L.P. (the &ldquo;Fund&rdquo;). Capital, Mr. Kolchinsky and the Fund are collectively
referred to herein as the &ldquo;Reporting Persons.&rdquo; Capital is the general partner of the Fund and serves as investment
adviser for a separately managed account (the &ldquo;Account&rdquo;). Mr. Kolchinsky is the manager of Capital. As the investment
adviser to the Fund and the Account, Capital may be deemed a beneficial owner, for purposes of Section 13(d) of the Securities
Exchange Act of 1934 (the &ldquo;Act&rdquo;), of any securities of the Issuer owned by the Fund or the Account. As the manager
of Capital, Mr. Kolchinsky may be deemed a beneficial owner, for purposes of Section 13(d) of the Act, of any securities of the
Issuer beneficially owned by Capital. Capital is a registered investment adviser within the meaning of Rule 13d-1(b)(1)(ii)(E)
and Rule 16a-1(a)(v), and Mr. Kolchinsky is a parent or control person of Capital within the meaning of Rule 13d-1(b)(1)(ii)(G)
and Rule 16a-1(a)(1)(vii). Capital and Mr. Kolchinsky disclaim beneficial ownership of the securities reported in this Schedule
13G Statement (the &ldquo;Statement&rdquo;) other than for the purpose of determining their obligations under Section 13(d) of
the Act, and the filing of the Statement shall not be deemed an admission that either Capital or Mr. Kolchinsky is or was the
beneficial owner of such securities for any other purpose.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in">(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Address
of Principal Business Office:</B> The principal business office of the Reporting Persons is c/o RA Capital Management, LLC, 20
Park Plaza, Suite 1200, Boston, MA 02116.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in">(c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Citizenship:
</B>Capital is a Massachusetts limited liability company. The Fund is a Delaware limited partnership. Mr. Kolchinsky is a United
States citizen.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in">(d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Title
and Class of Securities: </B>Common stock (&ldquo;Common Stock&rdquo;)</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in">(e)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>CUSIP
Number: </B>171757107</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Item 3.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If
this statement is filed pursuant to &sect;&sect;240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:</B></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">Not applicable.</P>

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


<!-- Field: Page; Sequence: 5 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

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

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

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr>
    <td style="width: 67%; padding: 1.45pt 3pt; font-size: 10pt"><FONT STYLE="font-size: 10pt">CUSIP No. </FONT><B>171757107</B></td>
    <td style="width: 33%; padding: 1.45pt 3pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>13G</B></FONT></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Item 4.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ownership:</B></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">Provide the following information regarding
the aggregate number and percentage of the class of securities of the issuer identified in Item 1.</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
    <TD STYLE="font-size: 10pt">(a)</td>
    <td colspan="2"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Amount Beneficially Owned:</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">See the response(s) to Item 9 on the attached cover
        page(s).</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P></td></tr>
<tr style="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</td>
    <td colspan="2" style="font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="font-size: 10pt">(b)</td>
    <td colspan="2"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Percent of Class:</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">See the response(s) to Item 11 on the attached cover
        page(s).</P></td></tr>
<tr style="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</td>
    <td colspan="2" style="font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="font-size: 10pt">(c)</td>
    <td colspan="2" style="font-size: 10pt">Number of shares as to which such person has:</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="font-size: 10pt">&nbsp;</td>
    <td colspan="2" style="font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="width: 0.4in; font-size: 10pt"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></td>
    <TD STYLE="width: 0.4in; font-size: 10pt">(i)</td>
    <TD><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">sole power to vote or to direct the vote:</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">See the response(s) to Item 5 on the attached cover
        page(s).</P></td></tr>
<tr style="vertical-align: top">
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></td>
    <TD STYLE="font-size: 10pt">&nbsp;</td>
    <TD STYLE="font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></td>
    <TD STYLE="font-size: 10pt">(ii)</td>
    <TD><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">shared power to vote or to direct the vote</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">See the response(s) to Item 6 on the attached cover
        page(s).</P></td></tr>
<tr style="vertical-align: top">
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></td>
    <TD STYLE="font-size: 10pt">&nbsp;</td>
    <TD STYLE="font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></td>
    <TD STYLE="font-size: 10pt">(iii)</td>
    <TD><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">sole power to dispose or to direct the disposition
        of</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">See the response(s) to Item 7 on the attached cover
        page(s).</P></td></tr>
<tr style="vertical-align: top">
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></td>
    <TD STYLE="font-size: 10pt">&nbsp;</td>
    <TD STYLE="font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD STYLE="font-size: 10pt"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></td>
    <TD STYLE="font-size: 10pt">(iv)</td>
    <TD><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">shared power to dispose or to direct the disposition
        of</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">See the response(s) to Item 8 on the attached cover
        page(s).</P></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Item 5.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ownership
of Five Percent or Less of a Class:</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">If this statement is being filed to report the fact that as
of the date hereof the Reporting Person has ceased to be the beneficial owner of more than five percent of the class of securities,
check the following <FONT STYLE="font-family: Wingdings; font-size: 10pt">x</FONT>.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in; text-align: justify; text-indent: -1in"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in; text-align: justify; text-indent: -1in"><B>Item 6.
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ownership of More than Five Percent on Behalf of Another Person:</B></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">Not applicable.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Item 7. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Identification
and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person:</B></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">Not applicable.</P>

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


<!-- Field: Page; Sequence: 6 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

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

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

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%">
<tr>
    <td style="width: 67%; padding: 1.45pt 3pt; font-size: 10pt"><FONT STYLE="font-size: 10pt">CUSIP No. </FONT><B>171757107</B></td>
    <td style="width: 33%; padding: 1.45pt 3pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 12pt"><B>13G</B></FONT></td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Item 8.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Identification
and Classification of Members of the Group:</B></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">Not applicable.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Item 9.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Notice
of Dissolution of Group:</B></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">Not applicable.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Item 10.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Certification:</B></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">By signing below I hereby certify that,
to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of
or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held
in connection with or as a participant in any transaction having that purpose or effect.</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"><U>Exhibits</U></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.5in">1</TD><TD STYLE="text-align: justify">Joint Filing Agreement by and among the Reporting Persons is incorporated
                                         herein by reference to Exhibit 1 to the Schedule 13G filed by the Reporting Persons with
                                         the Securities and Exchange Commission on April 21, 2015.</TD></TR></TABLE>

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


<!-- Field: Page; Sequence: 7 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="page-break-before: always; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">After reasonable inquiry
and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
    <TD STYLE="width: 55%">&nbsp;</td>
    <TD STYLE="width: 45%; text-decoration: none"><FONT STYLE="text-transform: uppercase">Date: F</FONT>ebruary 14<FONT STYLE="text-transform: uppercase">,
    2017</FONT></td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>RA CAPITAL MANAGEMENT, LLC</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD STYLE="border-bottom: Black 1pt solid">By: /s/ Rajeev Shah</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>Rajeev Shah</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>Authorized Signatory</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>PETER KOLCHINSKY</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD STYLE="border-bottom: Black 1pt solid">/s/ Peter Kolchinsky</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>RA CAPITAL HEALTHCARE FUND, L.P.</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>By: RA Capital Management, LLC</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>Its: General Partner</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>&nbsp;</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD STYLE="border-bottom: Black 1pt solid">By: /s/ Rajeev Shah</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>Rajeev Shah</td></tr>
<tr style="vertical-align: top">
    <TD>&nbsp;</td>
    <TD>Authorized Signatory</td></tr>
</table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.5in"><FONT STYLE="text-transform: uppercase">&nbsp;</FONT></P>


<!-- Field: Page; Sequence: 8; Options: Last -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1pt solid"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 3.5in"><FONT STYLE="text-transform: uppercase">&nbsp;</FONT></P>



<P STYLE="margin: 0"></P>

</BODY>
</HTML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
