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<!-- DFIN ActiveDisclosure(SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2021-03-25T19:51:00.3989666+00:00 -->
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<!-- Package ID         : c41bc55790a2461fb41c48d8611f1300 -->
<!-- Copyright (c) 2021 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
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  <xsd:element id="trvi_DebtInstrumentPrepaymentPremiumPercentageOnPrincipalAmount" name="DebtInstrumentPrepaymentPremiumPercentageOnPrincipalAmount" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="trvi_DebtInstrumentsPercentageOfRequiredToDepositUnrestrictedAndUnencumberedCashCollateral" name="DebtInstrumentsPercentageOfRequiredToDepositUnrestrictedAndUnencumberedCashCollateral" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_DebtDefaultAdditionalInterestChargePercentage" name="DebtDefaultAdditionalInterestChargePercentage" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="trvi_AdjustedPrimeRateMember" name="AdjustedPrimeRateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_SiliconValleyBankTermLoanMember" name="SiliconValleyBankTermLoanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_ContingentInterestRateIncreaseMember" name="ContingentInterestRateIncreaseMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_SolarCapitalTermLoanMember" name="SolarCapitalTermLoanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_SolarCapitalTermLoanAMember" name="SolarCapitalTermLoanAMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_FinancingCostsPaid" name="FinancingCostsPaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_ContingentInterestRateIncrease" name="ContingentInterestRateIncrease" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_AccrualOfFinalAndAmendmentFees" name="AccrualOfFinalAndAmendmentFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_LoanSuccessFeeAsPercentageOfFundedTermLoan" name="LoanSuccessFeeAsPercentageOfFundedTermLoan" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_LoanSuccessFeePayableFairvalue" name="LoanSuccessFeePayableFairvalue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="trvi_NonCashCharge" name="NonCashCharge" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="trvi_StockholdersEquityLineItems" name="StockholdersEquityLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_StockholdersEquityTable" name="StockholdersEquityTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_TwoThousandAndTwelveStockOptionAndGrantPlanMember" name="TwoThousandAndTwelveStockOptionAndGrantPlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_TwoThousandAndNineteenStockOptionAndGrantPlanMember" name="TwoThousandAndNineteenStockOptionAndGrantPlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_TwoThousandAndTwelveStockIncentivePlanMember" name="TwoThousandAndTwelveStockIncentivePlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_TwoThousandAndNineteenStockIncentivePlanMember" name="TwoThousandAndNineteenStockIncentivePlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_TwoThousandAndNineteenEmployeeStockPurchasePlanMember" name="TwoThousandAndNineteenEmployeeStockPurchasePlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_UnderwritingDiscountsAndCommissions" name="UnderwritingDiscountsAndCommissions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_OtherOfferingExpenses" name="OtherOfferingExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_MaximumAggregateOfferingPriceOfCommonStockWhichMayIssueAndSaleUnderAgreement" name="MaximumAggregateOfferingPriceOfCommonStockWhichMayIssueAndSaleUnderAgreement" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="trvi_ShareBasedCompensationArrangementByShareBasedPaymentAwardOutstandingNumberOfSharesTillDate" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOutstandingNumberOfSharesTillDate" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="trvi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualIncreaseInNumberOfSharesMinimum" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualIncreaseInNumberOfSharesMinimum" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualIncreaseMinimumPercentageOfOutstandingStock" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAnnualIncreaseMinimumPercentageOfOutstandingStock" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_TwoThousandTwelveStockIncentivePlanMember" name="TwoThousandTwelveStockIncentivePlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_EmployeesOfficersAndNonEmployeeConsultantsMember" name="EmployeesOfficersAndNonEmployeeConsultantsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_OtherEquityBasedAwardMember" name="OtherEquityBasedAwardMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_SharebasedCompensationArrangementByShareBasedPaymentAwardOptionsUnvestedWeightedAverageContractualTerm" name="SharebasedCompensationArrangementByShareBasedPaymentAwardOptionsUnvestedWeightedAverageContractualTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsUnvestedInPeriodFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsUnvestedInPeriodFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_SeriesARedeemableConvertiblePreferredStockMemberMember" name="SeriesARedeemableConvertiblePreferredStockMemberMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_AgreementTypeAxis" name="AgreementTypeAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_AgreementTypeDomain" name="AgreementTypeDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_SeriesAExtensionPurchaseAgreementMember" name="SeriesAExtensionPurchaseAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_SeriesBRedeemableConvertiblePreferredStockMemberMember" name="SeriesBRedeemableConvertiblePreferredStockMemberMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_SeriesBPurchaseAgreementMember" name="SeriesBPurchaseAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_SeriesBSecondClosingMember" name="SeriesBSecondClosingMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_SeriesCRedeemableConvertiblePreferredStockMemberMember" name="SeriesCRedeemableConvertiblePreferredStockMemberMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_PreferredStockVestingAxis" name="PreferredStockVestingAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_PreferredStockVestingDomain" name="PreferredStockVestingDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_TrancheOneMember" name="TrancheOneMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_TrancheTwoMember" name="TrancheTwoMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_TrancheThirdMember" name="TrancheThirdMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_MeasurementInputCostOfEquityEstimateMember" name="MeasurementInputCostOfEquityEstimateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_NonIPOBasedScenarioMember" name="NonIPOBasedScenarioMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_IPOBasedScenarioMember" name="IPOBasedScenarioMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_StockIssuedDuringPeriodSharesAdditionalIssues" name="StockIssuedDuringPeriodSharesAdditionalIssues" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_NumberOfSharesEqualToNumberOfSharesPreviouslyPurchasedForCashPercentage" name="NumberOfSharesEqualToNumberOfSharesPreviouslyPurchasedForCashPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_NumberOfPreferredStockShareholders" name="NumberOfPreferredStockShareholders" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_ProceedsFromIssuanceOfRedeemableConvertiblePreferredstockBeforeIssuanceCost" name="ProceedsFromIssuanceOfRedeemableConvertiblePreferredstockBeforeIssuanceCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_PreferredStockRedemptionPeriod" name="PreferredStockRedemptionPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_AmortizationOfStockIssuanceCosts" name="AmortizationOfStockIssuanceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_UnaccretedDiscount" name="UnaccretedDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_UnaccretedPremium" name="UnaccretedPremium" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="trvi_AccruedInterestOnDebt" name="AccruedInterestOnDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="trvi_NumberOfAdditionalInvestors" name="NumberOfAdditionalInvestors" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="trvi_PreferredStockValueOutstandingAtFairValue" name="PreferredStockValueOutstandingAtFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="trvi_AccruedDividendsConvertedToCommonShare" name="AccruedDividendsConvertedToCommonShare" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="trvi_PercentageOfPreferredShareholdersRemainingOutstanding" name="PercentageOfPreferredShareholdersRemainingOutstanding" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="trvi_FairValueEstimatesOfCommonStockDiscountRate" name="FairValueEstimatesOfCommonStockDiscountRate" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_FairValueInputsProbabilityFactor" name="FairValueInputsProbabilityFactor" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_FairValueInputsEstimatedMarketDiscountRate" name="FairValueInputsEstimatedMarketDiscountRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_PreMoneyValuationCostOfEquityRate" name="PreMoneyValuationCostOfEquityRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_EstimatedTimeToInitialPublicOfferingDate" name="EstimatedTimeToInitialPublicOfferingDate" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_PreferredStockSharePriceAtFairValue" name="PreferredStockSharePriceAtFairValue" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="trvi_PreferredStockRiskFreeRate" name="PreferredStockRiskFreeRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_PreferredStockVolatilityRate" name="PreferredStockVolatilityRate" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_PreferredStockWeightedEstimatedMaturityTerm" name="PreferredStockWeightedEstimatedMaturityTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_AccretionOfFinancingCosts" name="AccretionOfFinancingCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_UnaccretedFinancingCosts" name="UnaccretedFinancingCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_FairValueAdjustmentOnPreferredStockValue" name="FairValueAdjustmentOnPreferredStockValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_AccretionOfInvestorRights" name="AccretionOfInvestorRights" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_UnaccretedInvestorRights" name="UnaccretedInvestorRights" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_ProceedsFromSeriesAPreferredStockFinancing" name="ProceedsFromSeriesAPreferredStockFinancing" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_PercentageConversionOfPreferredStockOutstanding" name="PercentageConversionOfPreferredStockOutstanding" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_EffectiveIncomeTaxRateReconciliationRefundableTaxCredit" name="EffectiveIncomeTaxRateReconciliationRefundableTaxCredit" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_EffectiveIncomeTaxRateReconciliationLeaseStandardAdoption" name="EffectiveIncomeTaxRateReconciliationLeaseStandardAdoption" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_DeferredTaxAssetsFederalAndStateTaxCredits" name="DeferredTaxAssetsFederalAndStateTaxCredits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_CumulativeOperatingLossCarryforwards" name="CumulativeOperatingLossCarryforwards" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_IncomeTaxReconciliationTaxCreditsResearchBalance" name="IncomeTaxReconciliationTaxCreditsResearchBalance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="trvi_LimitationsOnUseOperatingLossCarryforwards" name="LimitationsOnUseOperatingLossCarryforwards" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_OperatingLossCarryforwardsExpirationYear" name="OperatingLossCarryforwardsExpirationYear" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_TaxCreditCarryforwardsExpirationYear" name="TaxCreditCarryforwardsExpirationYear" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_PercentageOfTaxableIncomeOffsetByOperatingLossCarryforwards" name="PercentageOfTaxableIncomeOffsetByOperatingLossCarryforwards" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_LimitationsOnUseTaxCreditsResearch" name="LimitationsOnUseTaxCreditsResearch" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_IncomeTaxesLineItems" name="IncomeTaxesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_IncomeTaxesTable" name="IncomeTaxesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_FederalAndStateMember" name="FederalAndStateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_CurrentResearchTaxCreditReceivable" name="CurrentResearchTaxCreditReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit" />
  <xsd:element id="trvi_PaymentForUpfrontLicenseFee" name="PaymentForUpfrontLicenseFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="trvi_MilestonePaymentsToBePaid" name="MilestonePaymentsToBePaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit" />
  <xsd:element id="trvi_EndoPharmaceuticalsIncMember" name="EndoPharmaceuticalsIncMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_CompletionOfStageOneMember" name="CompletionOfStageOneMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_CompletionOfStageTwoMember" name="CompletionOfStageTwoMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_RutgersMember" name="RutgersMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_MentiNovaLLCMember" name="MentiNovaLLCMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="trvi_RoyaltyTermsAndConditions" name="RoyaltyTermsAndConditions" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_DefinedContributionPlanEmployersMatchingContributionComplianceWithRegulatoryCapitalRequirements" name="DefinedContributionPlanEmployersMatchingContributionComplianceWithRegulatoryCapitalRequirements" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_DefinedContributionPlanEmployerElectiveContributionsPercentOfMatch" name="DefinedContributionPlanEmployerElectiveContributionsPercentOfMatch" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_DefinedContributionPlanVestingOverPeriod" name="DefinedContributionPlanVestingOverPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="trvi_CostIncurredForHealthCareAndLifeInsuranceBenefits" name="CostIncurredForHealthCareAndLifeInsuranceBenefits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit" />
</xsd:schema>
