<SEC-DOCUMENT>0000899243-21-047494.txt : 20211209
<SEC-HEADER>0000899243-21-047494.hdr.sgml : 20211209
<ACCEPTANCE-DATETIME>20211209143303
ACCESSION NUMBER:		0000899243-21-047494
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20211129
FILED AS OF DATE:		20211209
DATE AS OF CHANGE:		20211209

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lackey Melinda
		CENTRAL INDEX KEY:			0001898184

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33038
		FILM NUMBER:		211481670

	MAIL ADDRESS:	
		STREET 1:		C/O ZIOPHARM ONCOLOGY INC.
		STREET 2:		8030 EL RIO ST
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77054

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ZIOPHARM ONCOLOGY INC
		CENTRAL INDEX KEY:			0001107421
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				841475642
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE FIRST AVENUE
		STREET 2:		PARRIS BUILDING 34, NAVY YARD PLAZA
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02129
		BUSINESS PHONE:		617-259-1970

	MAIL ADDRESS:	
		STREET 1:		ONE FIRST AVENUE
		STREET 2:		PARRIS BUILDING 34, NAVY YARD PLAZA
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02129

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EASYWEB INC
		DATE OF NAME CHANGE:	20010213
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<DESCRIPTION>FORM 3 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2021-11-29</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001107421</issuerCik>
        <issuerName>ZIOPHARM ONCOLOGY INC</issuerName>
        <issuerTradingSymbol>ZIOP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001898184</rptOwnerCik>
            <rptOwnerName>Lackey Melinda</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ZIOPHARM ONCOLOGY, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>8030 EL RIO ST.</rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77054</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Senior Vice President, Legal</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Melinda Lackey</signatureName>
        <signatureDate>2021-12-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
