<SEC-DOCUMENT>0001209191-21-017990.txt : 20210304
<SEC-HEADER>0001209191-21-017990.hdr.sgml : 20210304
<ACCEPTANCE-DATETIME>20210304184702
ACCESSION NUMBER:		0001209191-21-017990
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210222
FILED AS OF DATE:		20210304
DATE AS OF CHANGE:		20210304

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BERGER FRANKLIN M
		CENTRAL INDEX KEY:			0001273885

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37410
		FILM NUMBER:		21715870

	MAIL ADDRESS:	
		STREET 1:		1000 MARINA BLVD
		STREET 2:		STE 200
		CITY:			BRISBANE
		STATE:			CA
		ZIP:			94005

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ESSA Pharma Inc.
		CENTRAL INDEX KEY:			0001633932
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			A1
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		SUITE 720
		STREET 2:		999 WEST BROADWAY
		CITY:			VANCOUVER
		STATE:			A1
		ZIP:			V5Z 1K5
		BUSINESS PHONE:		(778) 331-0962

	MAIL ADDRESS:	
		STREET 1:		SUITE 720
		STREET 2:		999 WEST BROADWAY
		CITY:			VANCOUVER
		STATE:			A1
		ZIP:			V5Z 1K5
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-02-22</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001633932</issuerCik>
        <issuerName>ESSA Pharma Inc.</issuerName>
        <issuerTradingSymbol>EPIX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001273885</rptOwnerCik>
            <rptOwnerName>BERGER FRANKLIN M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ESSA PHARMA INC.</rptOwnerStreet1>
            <rptOwnerStreet2>999 WEST BROADWAY, SUITE 720</rptOwnerStreet2>
            <rptOwnerCity>VANCOUVER</rptOwnerCity>
            <rptOwnerState>A1</rptOwnerState>
            <rptOwnerZipCode>V5Z 1K5</rptOwnerZipCode>
            <rptOwnerStateDescription>BRITISH COLUMBIA, CANADA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2021-02-22</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>57000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>27.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>957244</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Franklin Berger</signatureName>
        <signatureDate>2021-03-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
