<SEC-DOCUMENT>0001192482-20-000139.txt : 20200207
<SEC-HEADER>0001192482-20-000139.hdr.sgml : 20200207
<ACCEPTANCE-DATETIME>20200207161136
ACCESSION NUMBER:		0001192482-20-000139
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200205
FILED AS OF DATE:		20200207
DATE AS OF CHANGE:		20200207

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Malamut Richard
		CENTRAL INDEX KEY:			0001772168

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37372
		FILM NUMBER:		20587543

	MAIL ADDRESS:	
		STREET 1:		100 TECHNOLOGY CENTER DRIVE
		CITY:			STOUGHTON
		STATE:			MA
		ZIP:			02072

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COLLEGIUM PHARMACEUTICAL, INC
		CENTRAL INDEX KEY:			0001267565
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			VA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		100 TECHNOLOGY CENTER DRIVE
		CITY:			STOUGHTON
		STATE:			MA
		ZIP:			02072
		BUSINESS PHONE:		781-713-3699

	MAIL ADDRESS:	
		STREET 1:		100 TECHNOLOGY CENTER DRIVE
		CITY:			STOUGHTON
		STATE:			MA
		ZIP:			02072

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COLLEGIUM PHARMACEUTICAL INC
		DATE OF NAME CHANGE:	20031020
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-02-05</periodOfReport>

    <issuer>
        <issuerCik>0001267565</issuerCik>
        <issuerName>COLLEGIUM PHARMACEUTICAL, INC</issuerName>
        <issuerTradingSymbol>COLL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001772168</rptOwnerCik>
            <rptOwnerName>Malamut Richard</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O COLLEGIUM PHARMACEUTICAL, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>100 TECHNOLOGY CENTER DRIVE</rptOwnerStreet2>
            <rptOwnerCity>STOUGHTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02072</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP and Chief Medical Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2020-02-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>20250</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>62750</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Purchase)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>21.34</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2020-02-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>22500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2030-02-05</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>22500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>22500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Reflects the grant of restricted stock units. Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock. Twenty-five percent (25%) of the restricted stock units vest on February 10, 2021, and the balance of the restricted stock units vest in equal annual installments over the following three-year period, subject to the reporting person's continued service with the issuer. The restricted stock units will be settled on each applicable vesting date in shares of the issuer's common stock.</footnote>
        <footnote id="F2">Twenty-five percent (25%) of the option vests and becomes exercisable on February 10, 2021, and the balance vests in equal quarterly installments (rounded up to the nearest whole share of common stock) over the following three-year period, subject to the reporting person's continued service with the issuer.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Paul Brannelly as Attorney-In-Fact for Richard Malamut</signatureName>
        <signatureDate>2020-02-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
