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    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001688765</cik>
        <entityName>Braeburn Pharmaceuticals, Inc.</entityName>
        <issuerAddress>
            <street1>47 HULFISH STREET</street1>
            <street2>SUITE 441</street2>
            <city>PRINCETON</city>
            <stateOrCountry>NJ</stateOrCountry>
            <stateOrCountryDescription>NEW JERSEY</stateOrCountryDescription>
            <zipCode>08542</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>609-751-5375</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <previousName>AT Pharmaceuticals, Inc.</previousName>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Michael</firstName>
                <lastName>Derkacz</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>47 Hulfish Street, Suite 441</street1>
                <city>Princeton</city>
                <stateOrCountry>NJ</stateOrCountry>
                <stateOrCountryDescription>NEW JERSEY</stateOrCountryDescription>
                <zipCode>08542</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Chief Executive Officer and President</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>David</firstName>
                <middleName>J.</middleName>
                <lastName>McIntyre</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>47 Hulfish Street, Suite 441</street1>
                <city>Princeton</city>
                <stateOrCountry>NJ</stateOrCountry>
                <stateOrCountryDescription>NEW JERSEY</stateOrCountryDescription>
                <zipCode>08542</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Chief Financial Officer and Treasurer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Asher</firstName>
                <middleName>M.</middleName>
                <lastName>Rubin</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>100 International Drive, Suite 2000</street1>
                <city>Baltimore</city>
                <stateOrCountry>MD</stateOrCountry>
                <stateOrCountryDescription>MARYLAND</stateOrCountryDescription>
                <zipCode>21202</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Secretary</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Seth</firstName>
                <middleName>L.</middleName>
                <lastName>Harrison, M.D.</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>47 Hulfish Street, Suite 441</street1>
                <city>Princeton</city>
                <stateOrCountry>NJ</stateOrCountry>
                <stateOrCountryDescription>NEW JERSEY</stateOrCountryDescription>
                <zipCode>08542</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Chairman</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jeffrey</firstName>
                <lastName>Berkowitz</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>47 Hulfish Street, Suite 441</street1>
                <city>Princeton</city>
                <stateOrCountry>NJ</stateOrCountry>
                <stateOrCountryDescription>NEW JERSEY</stateOrCountryDescription>
                <zipCode>08542</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Argeris</firstName>
                <lastName>Karabelas, Ph.D.</lastName>
            </relatedPersonName>
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                <city>Princeton</city>
                <stateOrCountry>NJ</stateOrCountry>
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                <zipCode>08542</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Patrick</firstName>
                <lastName>Kennedy</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
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            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Dennis</firstName>
                <middleName>H.</middleName>
                <lastName>Langer, J. D., M.D.</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>47 Hulfish Street, Suite 441</street1>
                <city>Princeton</city>
                <stateOrCountry>NJ</stateOrCountry>
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                <zipCode>08542</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Brian</firstName>
                <lastName>Markison</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>47 Hulfish Street, Suite 441</street1>
                <city>Princeton</city>
                <stateOrCountry>NJ</stateOrCountry>
                <stateOrCountryDescription>NEW JERSEY</stateOrCountryDescription>
                <zipCode>08542</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Biotechnology</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2018-01-08</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>110003471</totalOfferingAmount>
            <totalAmountSold>110003471</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse>The aggregate offering amount and total amount sold have been rounded up to the next whole dollar.</clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>8</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Braeburn Pharmaceuticals, Inc.</issuerName>
                <signatureName>/s/ Asher M. Rubin</signatureName>
                <nameOfSigner>Asher M. Rubin</nameOfSigner>
                <signatureTitle>Secretary</signatureTitle>
                <signatureDate>2018-01-19</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
