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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 ROyxcBcUE5VL/cI57b5ggVejThHe+abg0nwHCuQbARzNJBRtw49jrjwfaunsUoVi
 +vr6RBnQwwL5WcGazEJRNw==

<SEC-DOCUMENT>0001229054-04-000001.txt : 20040120
<SEC-HEADER>0001229054-04-000001.hdr.sgml : 20040119
<ACCEPTANCE-DATETIME>20040120161121
ACCESSION NUMBER:		0001229054-04-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040116
FILED AS OF DATE:		20040120

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GLYCOGENESYS  INC
		CENTRAL INDEX KEY:			0000946661
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				330231238
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		31 ST. JAMES AVENUE
		STREET 2:		8TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		6174220674

	MAIL ADDRESS:	
		STREET 1:		31 ST JAMES AVE
		STREET 2:		8TH FL
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GLYCOGENESY  INC
		DATE OF NAME CHANGE:	20011107

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SAFESCIENCE INC
		DATE OF NAME CHANGE:	19980401

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IGG INTERNATIONAL INC
		DATE OF NAME CHANGE:	19950721

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BURNS JOHN W
		CENTRAL INDEX KEY:			0001229050

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26476
		FILM NUMBER:		04532764

	BUSINESS ADDRESS:	
		STREET 1:		C/O GLYCOGENESYS INC
		STREET 2:		31ST JAMES AVE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		6174220674

	MAIL ADDRESS:	
		STREET 1:		C/O GLYCOGENESYS INC
		STREET 2:		31ST JAMES AVE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2004-01-16</periodOfReport>
    <issuer>
        <issuerCik>0000946661</issuerCik>
        <issuerName>GLYCOGENESYS  INC</issuerName>
        <issuerTradingSymbol>GLGS</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001229050</rptOwnerCik>
            <rptOwnerName>BURNS JOHN W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GLYCOGENESYS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>31 ST. JAMES AVENUE</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01226</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Senior Vice President and CFO</officerTitle></reportingOwnerRelationship></reportingOwner><derivativeTable><derivativeTransaction><securityTitle><value>Option to Purchase Common Stock</value></securityTitle><conversionOrExercisePrice><value>1.37</value></conversionOrExercisePrice><transactionDate><value>2004-01-16</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>46470</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><footnoteId id="F1"/></exerciseDate><expirationDate><value>2014-01-16</value></expirationDate><underlyingSecurity><underlyingSecuri
tyTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>46470</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>59700</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeTransaction><derivativeTransaction><securityTitle><value>Option to Purchase Common Stock</value></securityTitle><conversionOrExercisePrice><value>1.37</value></conversionOrExercisePrice><transactionDate><value>2004-01-16</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>13230</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transaction
AcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2004-01-16</value></exerciseDate><expirationDate><value>2014-01-16</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>13230</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>59790</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">This option vests quarterly in equal amounts over three years commencing April 16, 2004.</footnote></footnotes><remarks/><ownerSignature><signatureName>William O. Fabbri - Power of Attorney</signatureName><signatureDate>2004-01-20</signatureDate></ownerSignature></ow
nershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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