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  <xsd:import namespace="http://xbrl.sec.gov/ecd/2026" schemaLocation="https://xbrl.sec.gov/ecd/2026/ecd-2026.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2026" schemaLocation="https://xbrl.sec.gov/dei/2026/dei-2026.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd" />
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  <xsd:element id="anvs_CommonStockAndPreferredStockSharesAuthorized" name="CommonStockAndPreferredStockSharesAuthorized" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="anvs_NumberOfVotesForEachShareOfCommonStock" name="NumberOfVotesForEachShareOfCommonStock" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="anvs_PercentageOfExercisePriceToShareOfferingPrice" name="PercentageOfExercisePriceToShareOfferingPrice" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <xsd:element id="anvs_DeferredCostsCapitalizedPrepaidExpensesAndOtherAssetsDisclosureTextBlock" name="DeferredCostsCapitalizedPrepaidExpensesAndOtherAssetsDisclosureTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="anvs_AccruedLiabilitiesAndInterestAndEmployeeRelatedLiabilitiesCurrent" name="AccruedLiabilitiesAndInterestAndEmployeeRelatedLiabilitiesCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="anvs_PrepaidResearchAndDevelopmentExpenseCurrent" name="PrepaidResearchAndDevelopmentExpenseCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <xsd:element id="anvs_PrepaidExpenseSecurityDepositsAndOtherAssetsCurrent" name="PrepaidExpenseSecurityDepositsAndOtherAssetsCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <xsd:element id="anvs_NatureOfBusinessAndLiquidityAbstract" name="NatureOfBusinessAndLiquidityAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="anvs_MaximumAggregateSeverancePayments" name="MaximumAggregateSeverancePayments" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="anvs_EquityIncentivePlan2019Member" name="EquityIncentivePlan2019Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="anvs_EquityIncentivePlan2018Member" name="EquityIncentivePlan2018Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="anvs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="anvs_ConversionOfWarrantsNumberOfWarrantsConverted" name="ConversionOfWarrantsNumberOfWarrantsConverted" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="anvs_IssuanceCostsAssociatedWithEquityIssuancesPolicyTextBlock" name="IssuanceCostsAssociatedWithEquityIssuancesPolicyTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element name="AtMarketEquityOfferingCommonStockAuthorizedValue" id="anvs_AtMarketEquityOfferingCommonStockAuthorizedValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ClassOfWarrantOrRightNumberOfWarrantsExercised" id="anvs_ClassOfWarrantOrRightNumberOfWarrantsExercised" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="GrossProceedsFromIssuanceOfCommonStock" id="anvs_GrossProceedsFromIssuanceOfCommonStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ScheduleOfChangesInCommonStockWarrantLiabilitiesTableTextBlock" id="anvs_ScheduleOfChangesInCommonStockWarrantLiabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="WarrantsClassifiedAsEquityMember" id="anvs_WarrantsClassifiedAsEquityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NumberOfWarrantsIssuedDuringPeriod" id="anvs_NumberOfWarrantsIssuedDuringPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DisclosureOfEarningsPerShareBasicAndDilutedAbstract" id="anvs_DisclosureOfEarningsPerShareBasicAndDilutedAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EarningsPerShareBasicNumeratorAbstract" id="anvs_EarningsPerShareBasicNumeratorAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EarningsPerShareBasicDenominatorAbstract" id="anvs_EarningsPerShareBasicDenominatorAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EarningsPerShareDilutedNumeratorAbstract" id="anvs_EarningsPerShareDilutedNumeratorAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EarningsPerShareDilutedDenominatorAbstract" id="anvs_EarningsPerShareDilutedDenominatorAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FinancingCostsFromIssuanceOfShares" id="anvs_FinancingCostsFromIssuanceOfShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="WarrantLiabilityNoncurrent" id="anvs_WarrantLiabilityNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="GainLossOnChangesInFairValueOfWarrantLiability" id="anvs_GainLossOnChangesInFairValueOfWarrantLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AccruedClinicalLiabilitiesCurrent" id="anvs_AccruedClinicalLiabilitiesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NumberOfShortTermLeases" id="anvs_NumberOfShortTermLeases" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="December2024AtMarketEquityOfferingMember" id="anvs_December2024AtMarketEquityOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SaleOfStockNumberOfUnitsAuthorizedForIssuance" id="anvs_SaleOfStockNumberOfUnitsAuthorizedForIssuance" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfSharesIncludedInEachUnit" id="anvs_NumberOfSharesIncludedInEachUnit" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfWarrantsIncludedInEachUnit" id="anvs_NumberOfWarrantsIncludedInEachUnit" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="MariaMaccecchiniMember" id="anvs_MariaMaccecchiniMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ClaudineBruckMember" id="anvs_ClaudineBruckMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="MarkWhiteMember" id="anvs_MarkWhiteMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EquityDistributionAgreementValueOfStockIssuedDuringPeriodNetOfIssuanceCosts" id="anvs_EquityDistributionAgreementValueOfStockIssuedDuringPeriodNetOfIssuanceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="StockIssuedDuringPeriodSharesEquityDistributionAgreement" id="anvs_StockIssuedDuringPeriodSharesEquityDistributionAgreement" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SingleReportableSegmentMember" id="anvs_SingleReportableSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GeneralAndAdministrativeExpenseProfessionalAndConsultantFees" id="anvs_GeneralAndAdministrativeExpenseProfessionalAndConsultantFees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ProgramExpensesRelatedToClinicalStageProductCandidates" id="anvs_ProgramExpensesRelatedToClinicalStageProductCandidates" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ProgramExpensesRelatedToPreclinicalAndDiscoveryPrograms" id="anvs_ProgramExpensesRelatedToPreclinicalAndDiscoveryPrograms" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IssuanceOfCommonStockAndWarrantsUnderRegisteredDirectOfferingNetOfIssuanceCostsValue" id="anvs_IssuanceOfCommonStockAndWarrantsUnderRegisteredDirectOfferingNetOfIssuanceCostsValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IssuanceOfCommonStockAndWarrantsUnderRegisteredDirectOfferingNetOfIssuanceCostsShares" id="anvs_IssuanceOfCommonStockAndWarrantsUnderRegisteredDirectOfferingNetOfIssuanceCostsShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="February2025ThinkEquityUnderwrittenOfferingAndWarrantIssuanceMember" id="anvs_February2025ThinkEquityUnderwrittenOfferingAndWarrantIssuanceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GrossProceedsFromIssuanceOfUnits" id="anvs_GrossProceedsFromIssuanceOfUnits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ThinkEquityWarrantsMember" id="anvs_ThinkEquityWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RollforwardOfCommonStockWarrantLiabilityAbstract" id="anvs_RollforwardOfCommonStockWarrantLiabilityAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SecuritiesPurchaseAgreementMember" id="anvs_SecuritiesPurchaseAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RegisteredDirectOfferingMember" id="anvs_RegisteredDirectOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ClassOfWarrantOrRightOfferingPrice" id="anvs_ClassOfWarrantOrRightOfferingPrice" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="StockSubscriptionAgreementsMember" id="anvs_StockSubscriptionAgreementsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ProgramExpensesRelatedToClinicalManufacturingCandidates" id="anvs_ProgramExpensesRelatedToClinicalManufacturingCandidates" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PlacementAgentWarrantsMember" id="anvs_PlacementAgentWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ThinkEquityWarrantsExpirationFebruary42030Member" id="anvs_ThinkEquityWarrantsExpirationFebruary42030Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="WarrantsClassifiedAsLiabilitiesExpirationNovember22028Member" id="anvs_WarrantsClassifiedAsLiabilitiesExpirationNovember22028Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PlacementAgentWarrantsExpirationOctober142030Member" id="anvs_PlacementAgentWarrantsExpirationOctober142030Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PlacementAgentWarrantsExpirationOctober282030Member" id="anvs_PlacementAgentWarrantsExpirationOctober282030Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriodIntrinsicValue" id="anvs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriodIntrinsicValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="StockIssuedDuringPeriodValueExerciseOfWarrants" id="anvs_StockIssuedDuringPeriodValueExerciseOfWarrants" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ProceedsFromIssuanceOfCommonStockAndWarrantsNet" id="anvs_ProceedsFromIssuanceOfCommonStockAndWarrantsNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NumberOfPatientsInClinicalStudy" id="anvs_NumberOfPatientsInClinicalStudy" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="October2023CanaccordEquityOfferingAndWarrantIssuanceMember" id="anvs_October2023CanaccordEquityOfferingAndWarrantIssuanceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CanaccordWarrantsExpirationOctober82031Member" id="anvs_CanaccordWarrantsExpirationOctober82031Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CanaccordWarrantsExpirationMay182032Member" id="anvs_CanaccordWarrantsExpirationMay182032Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CanaccordWarrantsApril2026Member" id="anvs_CanaccordWarrantsApril2026Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CanaccordWarrantsMay2026Member" id="anvs_CanaccordWarrantsMay2026Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="April2026CanaccordEquityOfferingAndWarrantIssuanceMember" id="anvs_April2026CanaccordEquityOfferingAndWarrantIssuanceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="May2026CanaccordEquityOfferingAndWarrantIssuanceMember" id="anvs_May2026CanaccordEquityOfferingAndWarrantIssuanceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="WarrantsAndRightsOutstandingVestingPeriod" id="anvs_WarrantsAndRightsOutstandingVestingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IssuanceOfCommonStockAndWarrantsUnderRegisteredUnderwrittenOfferingNetOfIssuanceCostsAndWarrantLiabilityValue" id="anvs_IssuanceOfCommonStockAndWarrantsUnderRegisteredUnderwrittenOfferingNetOfIssuanceCostsAndWarrantLiabilityValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IssuanceOfCommonStockAndWarrantsUnderRegisteredUnderwrittenOfferingNetOfIssuanceCostsAndWarrantLiabilityShares" id="anvs_IssuanceOfCommonStockAndWarrantsUnderRegisteredUnderwrittenOfferingNetOfIssuanceCostsAndWarrantLiabilityShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="CanaccordWarrantsOctober2023Member" id="anvs_CanaccordWarrantsOctober2023Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="UnderwriterDiscountFeesAndThirdPartyCosts" id="anvs_UnderwriterDiscountFeesAndThirdPartyCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="UnderwriterDiscountFeesAndThirdPartyCostsRecordedToOtherFinancingCosts" id="anvs_UnderwriterDiscountFeesAndThirdPartyCostsRecordedToOtherFinancingCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="UnderwriterDiscountFeesAndThirdPartyCostsRecordedAdditionalPaidInCapital" id="anvs_UnderwriterDiscountFeesAndThirdPartyCostsRecordedAdditionalPaidInCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
</xsd:schema>
