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<!-- RR Donnelley Xcelerate Taxonomy Schema, based on XBRL 2.1  http://www.rrdonnelley.com/ -->
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<!-- Round: 2 -->
<!-- Creation date: 2016-04-14T16:13:20Z -->
<!-- Copyright (c) 2005-2013 R.R. Donnelley & Sons Company All Rights Reserved. -->
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        <link:definition>112 - Disclosure - Derivative Liability</link:definition>
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        <link:definition>113 - Disclosure - Promissory Notes</link:definition>
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        <link:definition>115 - Disclosure - Capital Stock</link:definition>
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        <link:definition>121 - Disclosure - Capital Stock (Tables)</link:definition>
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        <link:definition>125 - Disclosure - Net Loss per Share Applicable to Common Shareholder - Net Loss per Share (Detail)</link:definition>
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        <link:definition>128 - Disclosure - Derivative Liability - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail)</link:definition>
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        <link:definition>132 - Disclosure - Capital Stock - Additional Information (Detail)</link:definition>
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        <link:definition>133 - Disclosure - Capital Stock - Share Purchase Warrants (Detail)</link:definition>
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        <link:definition>134 - Disclosure - Capital Stock - Share Purchase Options (Detail)</link:definition>
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        <link:definition>135 - Disclosure - Capital Stock - Weighted Average Assumptions (Detail)</link:definition>
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        <link:definition>136 - Disclosure - Income Taxes - Additional Information (Detail)</link:definition>
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        <link:definition>137 - Disclosure - Income Taxes - Summary of Effects of Temporary Differences that Give Rise to Significant Portions of the Deferred Tax Assets (Detail)</link:definition>
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        <link:definition>138 - Disclosure - Income Taxes - Summary of Expected Tax Expense (Benefit) Based on the U.S. Federal Statutory Rate is Reconciled with the Actual Tax Provision (Benefit) (Detail)</link:definition>
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        <link:definition>139 - Disclosure - Contingencies and Commitments - Additional Information (Detail)</link:definition>
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  <element name="ClassOfWarrantOrRightExpirationPeriod" id="tpiv_ClassOfWarrantOrRightExpirationPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ClassOfWarrantOrRightOutstandingExercisedWeightedAverageExercisePrice" id="tpiv_ClassOfWarrantOrRightOutstandingExercisedWeightedAverageExercisePrice" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ClassOfWarrantOrRightOutstandingExtinguishedOrExpiredWeightedAverageExercisePrice" id="tpiv_ClassOfWarrantOrRightOutstandingExtinguishedOrExpiredWeightedAverageExercisePrice" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ClassOfWarrantOrRightOutstandingIssuedWeightedAverageExercisePrice" id="tpiv_ClassOfWarrantOrRightOutstandingIssuedWeightedAverageExercisePrice" type="num:perShareItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ClassOfWarrantOrRightOutstandingIssuedWeightedAverageRemainingLife" id="tpiv_ClassOfWarrantOrRightOutstandingIssuedWeightedAverageRemainingLife" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice" id="tpiv_ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ClassOfWarrantOrRightOutstandingWeightedAverageRemainingLife" id="tpiv_ClassOfWarrantOrRightOutstandingWeightedAverageRemainingLife" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentAndContingenciesLineItems" id="tpiv_CommitmentAndContingenciesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentAndContingenciesTable" id="tpiv_CommitmentAndContingenciesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="CommonStockCapitalSharesReservedForFutureIssuanceLineItems" id="tpiv_CommonStockCapitalSharesReservedForFutureIssuanceLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommonStockCapitalSharesReservedForFutureIssuanceTable" id="tpiv_CommonStockCapitalSharesReservedForFutureIssuanceTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="CommonStockWarrantsEquityTreatment" id="tpiv_CommonStockWarrantsEquityTreatment" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommonStockWarrantsLiabilityTreatment" id="tpiv_CommonStockWarrantsLiabilityTreatment" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ConversionOfAccountsPayableToCommonStock" id="tpiv_ConversionOfAccountsPayableToCommonStock" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ConversionOfAccountsPayableToCommonStockAmount" id="tpiv_ConversionOfAccountsPayableToCommonStockAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ConversionOfDebtObligationsIntoCommonStockAbstract" id="tpiv_ConversionOfDebtObligationsIntoCommonStockAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ConvertibleNotesPromissoryNotesLoanPayableRelatedPartyDueToRelatedPartiesAndAccruedInterestConvertedIntoSeriesAAndBPreferredStockAndImmediatelyConvertedIntoCommonStock" id="tpiv_ConvertibleNotesPromissoryNotesLoanPayableRelatedPartyDueToRelatedPartiesAndAccruedInterestConvertedIntoSeriesAAndBPreferredStockAndImmediatelyConvertedIntoCommonStock" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ConvertibleNotesPromissoryNotesLoanPayableRelatedPartyDueToRelatedPartiesAndAccruedInterestConvertedIntoSeriesAAndBPreferredStockAndImmediatelyConvertedIntoCommonStockAmount" id="tpiv_ConvertibleNotesPromissoryNotesLoanPayableRelatedPartyDueToRelatedPartiesAndAccruedInterestConvertedIntoSeriesAAndBPreferredStockAndImmediatelyConvertedIntoCommonStockAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DeferredTaxAssetsLicenseAgreement" id="tpiv_DeferredTaxAssetsLicenseAgreement" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DeferredTaxAssetsOperatingLossCarryforwardsReversal" id="tpiv_DeferredTaxAssetsOperatingLossCarryforwardsReversal" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DeferredTaxStockBasedCompensation" id="tpiv_DeferredTaxStockBasedCompensation" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DeferredTaxTechnologyLicensingFee" id="tpiv_DeferredTaxTechnologyLicensingFee" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DocumentAndEntityInformationAbstract" id="tpiv_DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="EquityUnitsIssuedPricePerUnit" id="tpiv_EquityUnitsIssuedPricePerUnit" type="us-types:perUnitItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ExerciseOfWarrantsAmount" id="tpiv_ExerciseOfWarrantsAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ExerciseOfWarrantsShare" id="tpiv_ExerciseOfWarrantsShare" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FairValueHedging1Member" id="tpiv_FairValueHedging1Member" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FairValueOfAdditionalWarrantsIssued" id="tpiv_FairValueOfAdditionalWarrantsIssued" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasis" id="tpiv_FinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasis" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FindersFeeOnExerciseOfWarrants" id="tpiv_FindersFeeOnExerciseOfWarrants" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="IncomeTaxLineItems" id="tpiv_IncomeTaxLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="IncomeTaxReconciliationChangeInFairValueOfDerivativeLiability" id="tpiv_IncomeTaxReconciliationChangeInFairValueOfDerivativeLiability" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="IncomeTaxReconciliationTaxWriteOffOfNetOperatingLosses" id="tpiv_IncomeTaxReconciliationTaxWriteOffOfNetOperatingLosses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="IncomeTaxTable" id="tpiv_IncomeTaxTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="JanuaryAndMarchTwoThousandsFifteenSharePurchaseWarrantsMember" id="tpiv_JanuaryAndMarchTwoThousandsFifteenSharePurchaseWarrantsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="LicenseAndAssignmentCommitmentMember" id="tpiv_LicenseAndAssignmentCommitmentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="LicensesMaintenanceFeeFutureMinimumPaymentsDueInTwoYears" id="tpiv_LicensesMaintenanceFeeFutureMinimumPaymentsDueInTwoYears" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="LicensesMaintenanceFeeFutureMinimumPaymentsDueThereafter" id="tpiv_LicensesMaintenanceFeeFutureMinimumPaymentsDueThereafter" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="LossOnSettlementAgreement" id="tpiv_LossOnSettlementAgreement" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MayTwoThousandsFifteenRestructuringMember" id="tpiv_MayTwoThousandsFifteenRestructuringMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MeasuredAtFairValue" id="tpiv_MeasuredAtFairValue" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NetLossPerShareTableTextBlock" id="tpiv_NetLossPerShareTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NoncashOrPartNoncashTransactionFairValueOfWarrantsIssued" id="tpiv_NoncashOrPartNoncashTransactionFairValueOfWarrantsIssued" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NoncashOrPartNoncashTransactionIssuanceOfAdditionalWarrants" id="tpiv_NoncashOrPartNoncashTransactionIssuanceOfAdditionalWarrants" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NoncashOrPartNoncashTransactionReclassificationOfWarrantLiabilitiesToEquity" id="tpiv_NoncashOrPartNoncashTransactionReclassificationOfWarrantLiabilitiesToEquity" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfCommonStockIncludedInUnitOffering" id="tpiv_NumberOfCommonStockIncludedInUnitOffering" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfEquityUnitsIssued" id="tpiv_NumberOfEquityUnitsIssued" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfOvarianCancerPatients" id="tpiv_NumberOfOvarianCancerPatients" type="xbrli:integerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfPreferredStockSharesConvertedToCommonStock" id="tpiv_NumberOfPreferredStockSharesConvertedToCommonStock" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfVotesPerShare" id="tpiv_NumberOfVotesPerShare" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfWarrantsExercised" id="tpiv_NumberOfWarrantsExercised" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfWarrantsExtinguishedOrExpired" id="tpiv_NumberOfWarrantsExtinguishedOrExpired" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfWarrantsIssued" id="tpiv_NumberOfWarrantsIssued" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OfficePropertyLeaseAgreementMember" id="tpiv_OfficePropertyLeaseAgreementMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OfficerAndDirectorMember" id="tpiv_OfficerAndDirectorMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OmnibusStockPlanTwoThousandFourteenMember" id="tpiv_OmnibusStockPlanTwoThousandFourteenMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PaymentForUpfrontLicensingFee" id="tpiv_PaymentForUpfrontLicensingFee" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PercentageOfBreastCancers" id="tpiv_PercentageOfBreastCancers" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PercentageOfFindersFee" id="tpiv_PercentageOfFindersFee" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PercentageOfOvarianCancers" id="tpiv_PercentageOfOvarianCancers" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PercentageOfRoyaltyOnSaleOfProduct" id="tpiv_PercentageOfRoyaltyOnSaleOfProduct" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PermanentDifferencesOtherPermanentDifferences" id="tpiv_PermanentDifferencesOtherPermanentDifferences" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PrivatePlacementAmount" id="tpiv_PrivatePlacementAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PrivatePlacementShare" id="tpiv_PrivatePlacementShare" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PromissoryNoteRelatedPartyTextBlock" id="tpiv_PromissoryNoteRelatedPartyTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PromissoryNotesDueInTwoThousandTwelveMember" id="tpiv_PromissoryNotesDueInTwoThousandTwelveMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PromissoryNotesInterest" id="tpiv_PromissoryNotesInterest" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PromissoryNoteTextBlock" id="tpiv_PromissoryNoteTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RestructuringAgreementNumberOfWarrantsIssuedRatio" id="tpiv_RestructuringAgreementNumberOfWarrantsIssuedRatio" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SeriesABAndCWarrantsMember" id="tpiv_SeriesABAndCWarrantsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SeriesAWarrantMember" id="tpiv_SeriesAWarrantMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SeriesBWarrantMember" id="tpiv_SeriesBWarrantMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SeriesCWarrantMember" id="tpiv_SeriesCWarrantMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SeriesDWarrantMember" id="tpiv_SeriesDWarrantMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SeriesEWarrantMember" id="tpiv_SeriesEWarrantMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIssuedWeightedAverageRemainingContractualTerm" id="tpiv_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIssuedWeightedAverageRemainingContractualTerm" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SharePurchaseWarrantsMember" id="tpiv_SharePurchaseWarrantsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SharePurchaseWarrantsTableTextBlock" id="tpiv_SharePurchaseWarrantsTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SharesIssuedInSettlementAgreementAmount" id="tpiv_SharesIssuedInSettlementAgreementAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SharesIssuedInSettlementAgreementShares" id="tpiv_SharesIssuedInSettlementAgreementShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="StockBasedCompensationAmount" id="tpiv_StockBasedCompensationAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="StockBasedCompensationShares" id="tpiv_StockBasedCompensationShares" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SubsequentWarrantIssuanceMember" id="tpiv_SubsequentWarrantIssuanceMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SummaryOfExpectedTaxExpenseBenefitBasedOnFederalStatutoryRateIsReconciledWithActualTaxProvisionBenefitTableTextBlock" id="tpiv_SummaryOfExpectedTaxExpenseBenefitBasedOnFederalStatutoryRateIsReconciledWithActualTaxProvisionBenefitTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TaxCreditCarryforwardExpirationYearRangeEnd" id="tpiv_TaxCreditCarryforwardExpirationYearRangeEnd" type="xbrli:gYearItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TaxCreditCarryforwardExpirationYearRangeStart" id="tpiv_TaxCreditCarryforwardExpirationYearRangeStart" type="xbrli:gYearItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="UnregisteredCommonStockMember" id="tpiv_UnregisteredCommonStockMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ValuationMethodology" id="tpiv_ValuationMethodology" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="WarrantsIssuedFindersFeeAndOfferingCosts" id="tpiv_WarrantsIssuedFindersFeeAndOfferingCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
</schema>
