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| <?xml version="1.0" encoding="windows-1252"?> |
| <ownershipDocument> |
| <schemaVersion> X0202 </schemaVersion> |
| <documentType> 4 </documentType> |
| <periodOfReport> 2005-08-15 </periodOfReport> |
| <notSubjectToSection16> 0 </notSubjectToSection16> |
| <issuer> |
| | <issuerCik> 0001088856 </issuerCik> |
| | <issuerName> CORCEPT THERAPEUTICS INC </issuerName> |
| | <issuerTradingSymbol> CORT </issuerTradingSymbol> |
| | </issuer> |
| <reportingOwner> |
| | <reportingOwnerId> |
| | | <rptOwnerCik> 0001286029 </rptOwnerCik> |
| | | <rptOwnerName> SCHATZBERG ALAN F </rptOwnerName> |
| | | </reportingOwnerId> |
| | <reportingOwnerAddress> |
| | | <rptOwnerStreet1> C/O CORCEPT THERAPEUTICS </rptOwnerStreet1> |
| | | <rptOwnerStreet2> 149 COMMONWEALTH DRIVE </rptOwnerStreet2> |
| | | <rptOwnerCity> MENLO PARK </rptOwnerCity> |
| | | <rptOwnerState> CA </rptOwnerState> |
| | | <rptOwnerZipCode> 94025 </rptOwnerZipCode> |
| | | <rptOwnerStateDescription></rptOwnerStateDescription> |
| | | </reportingOwnerAddress> |
| | <reportingOwnerRelationship> |
| | | <isDirector> 1 </isDirector> |
| | | <isOfficer> 0 </isOfficer> |
| | | <isTenPercentOwner> 1 </isTenPercentOwner> |
| | | <isOther> 0 </isOther> |
| | | </reportingOwnerRelationship> |
| | </reportingOwner> |
| <nonDerivativeTable> |
| | <nonDerivativeTransaction> |
| | | <securityTitle> |
| <value> Common Stock </value> |
| </securityTitle> |
| | | <transactionDate> |
| <value> 2005-08-15 </value> |
| </transactionDate> |
| | | <deemedExecutionDate></deemedExecutionDate> |
| | | <transactionCoding> |
| <transactionFormType> 4 </transactionFormType> |
| <transactionCode> S </transactionCode> |
| <equitySwapInvolved> 0 </equitySwapInvolved> |
| <footnoteId id="F1"/> |
| </transactionCoding> |
| | | <transactionTimeliness> |
| <value></value> |
| </transactionTimeliness> |
| | | <transactionAmounts> |
| <transactionShares> |
| <value> 15597 </value> |
| </transactionShares> |
| <transactionPricePerShare> |
| <value> 7.00 </value> |
| </transactionPricePerShare> |
| <transactionAcquiredDisposedCode> |
| <value> D </value> |
| </transactionAcquiredDisposedCode> |
| </transactionAmounts> |
| | | <postTransactionAmounts> |
| <sharesOwnedFollowingTransaction> |
| <value> 2388749 </value> |
| </sharesOwnedFollowingTransaction> |
| </postTransactionAmounts> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> D </value> |
| </directOrIndirectOwnership> |
| </ownershipNature> |
| | | </nonDerivativeTransaction> |
| | <nonDerivativeHolding> |
| | | <securityTitle> |
| <value> Common Stock </value> |
| </securityTitle> |
| | | <postTransactionAmounts> |
| <sharesOwnedFollowingTransaction> |
| <value> 300000 </value> |
| </sharesOwnedFollowingTransaction> |
| </postTransactionAmounts> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> I </value> |
| </directOrIndirectOwnership> |
| <natureOfOwnership> |
| <value> held by daughter #1 </value> |
| <footnoteId id="F2"/> |
| </natureOfOwnership> |
| </ownershipNature> |
| | | </nonDerivativeHolding> |
| | </nonDerivativeTable> |
| <footnotes> |
| | <footnote id="F1"> The sale on this Form 4 was effected pursuant to a Rule 10b5-1 sales plan adopted by the Reporting Person on September 27, 2004. </footnote> |
| | <footnote id="F2"> The Reporting Person has voting control of the shares and disclaims beneficial ownership of the shares. </footnote> |
| | </footnotes> |
| <remarks> The Reporting Person no longer has a reportable beneficial interest in 300,000 shares of CORT common stock owned by daughter #2 which was included in the Reporting Person's prior ownership reports. </remarks> |
| <ownerSignature> |
| | <signatureName> s/s Fred Kurland, CFO of Corcept Therapeutics Incorporated attorney-in-fact </signatureName> |
| | <signatureDate> 2005-08-16 </signatureDate> |
| | </ownerSignature> |
| </ownershipDocument> |
