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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 5xwLqvnPPypFtI74um0I3Q==

<SEC-DOCUMENT>0001019687-11-000492.txt : 20110211
<SEC-HEADER>0001019687-11-000492.hdr.sgml : 20110211
<ACCEPTANCE-DATETIME>20110211183410
ACCESSION NUMBER:		0001019687-11-000492
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20110210
FILED AS OF DATE:		20110211
DATE AS OF CHANGE:		20110211

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LYTLE PAUL J
		CENTRAL INDEX KEY:			0001244110

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32839
		FILM NUMBER:		11601141

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PEREGRINE PHARMACEUTICALS INC
		CENTRAL INDEX KEY:			0000704562
		STANDARD INDUSTRIAL CLASSIFICATION:	IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835]
		IRS NUMBER:				953698422
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0430

	BUSINESS ADDRESS:	
		STREET 1:		14282 FRANKLIN AVE
		CITY:			TUSTIN
		STATE:			CA
		ZIP:			92780
		BUSINESS PHONE:		7145086000

	MAIL ADDRESS:	
		STREET 1:		14282 FRANKLIN AVE
		CITY:			TUSTIN
		STATE:			CA
		ZIP:			92780

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TECHNICLONE CORP/DE/
		DATE OF NAME CHANGE:	19970924

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TECHNICLONE INTERNATIONAL CORP
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2011-02-10</periodOfReport>

    <issuer>
        <issuerCik>0000704562</issuerCik>
        <issuerName>PEREGRINE PHARMACEUTICALS INC</issuerName>
        <issuerTradingSymbol>PPHM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001244110</rptOwnerCik>
            <rptOwnerName>LYTLE PAUL J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PEREGRINE PHARMACEUTICALS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>14282 FRANKLIN AVE.</rptOwnerStreet2>
            <rptOwnerCity>TUSTIN</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92780</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $.001 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2011-02-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>9000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>72051</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents the issuance of shares pursuant to a discretionary grant approved by the Compensation Committee of the Board on February 10, 2011.</footnote>
        <footnote id="F2">Includes restricted shares issued pursuant to a Stock Issuance Agreement dated February 1, 2010.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Paul J. Lytle</signatureName>
        <signatureDate>2011-02-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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