<?xml version="1.0" encoding="US-ASCII"?>
<!-- DFIN New ActiveDisclosure (SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date :2021-09-20T12:08:41.5084+00:00 -->
<!-- Copyright (c) 2021 Donnelly Financial Solutions, Inc. All Rights Reserved. -->
<xsd:schema targetNamespace="http://adagiotx.com/20210630" attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:enum2="http://xbrl.org/2020/extensible-enumerations-2.0" xmlns:srt="http://fasb.org/srt/2020-01-31" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:us-gaap="http://fasb.org/us-gaap/2020-01-31" xmlns:adgi="http://adagiotx.com/20210630" xmlns:dei="http://xbrl.sec.gov/dei/2020-01-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:xlink="http://www.w3.org/1999/xlink">
  <xsd:import schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/instance"/>
  <xsd:import schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/linkbase"/>
  <xsd:import schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" namespace="http://xbrl.org/2005/xbrldt"/>
  <xsd:import schemaLocation="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd" namespace="http://fasb.org/us-gaap/2020-01-31"/>
  <xsd:import schemaLocation="https://xbrl.sec.gov/dei/2020/dei-2020-01-31.xsd" namespace="http://xbrl.sec.gov/dei/2020-01-31"/>
  <xsd:import schemaLocation="http://xbrl.fasb.org/srt/2020/elts/srt-2020-01-31.xsd" namespace="http://fasb.org/srt/2020-01-31"/>
  <xsd:import schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" namespace="http://www.xbrl.org/dtr/type/numeric"/>
  <xsd:import schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" namespace="http://www.xbrl.org/dtr/type/non-numeric"/>
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="adgi-20210630_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:title="Labels link" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="adgi-20210630_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:title="Presentation link" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="adgi-20210630_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:title="Definition link" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="adgi-20210630_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:title="Calculation link" xlink:type="simple"/>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DocumentDocumentAndEntityInformation" id="Role_DocumentDocumentAndEntityInformation">
        <link:definition>100000 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_StatementCONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITED" id="Role_StatementCONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITED">
        <link:definition>100010 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_StatementCONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITEDPARENTHETICAL" id="Role_StatementCONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITEDPARENTHETICAL">
        <link:definition>100020 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (PARENTHETICAL)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_StatementCONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUNAUDITED" id="Role_StatementCONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUNAUDITED">
        <link:definition>100030 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_StatementCONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUNAUDITEDPARENTHETICAL" id="Role_StatementCONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUNAUDITEDPARENTHETICAL">
        <link:definition>100040 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) (PARENTHETICAL)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/StatementCondensedConsolidatedStatementsOfConvertiblePreferredStockAndStockholdersDeficitUnaudited1" id="StatementCondensedConsolidatedStatementsOfConvertiblePreferredStockAndStockholdersDeficitUnaudited1">
        <link:definition>100050 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS DEFICIT (UNAUDITED)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/StatementCondensedConsolidatedStatementsOfConvertiblePreferredStockAndStockholdersDeficitUnauditedParenthetical" id="StatementCondensedConsolidatedStatementsOfConvertiblePreferredStockAndStockholdersDeficitUnauditedParenthetical">
        <link:definition>100060 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS DEFICIT (UNAUDITED) (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_StatementCONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED" id="Role_StatementCONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED">
        <link:definition>100070 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureNatureOfBusinessAndBasisOfPresentation" id="Role_DisclosureNatureOfBusinessAndBasisOfPresentation">
        <link:definition>100080 - Disclosure - Nature of Business and Basis of Presentation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies" id="Role_DisclosureSummaryOfSignificantAccountingPolicies">
        <link:definition>100090 - Disclosure - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureFairValueMeasurements" id="Role_DisclosureFairValueMeasurements">
        <link:definition>100100 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosurePrepaidExpensesAndOtherCurrentAssets" id="Role_DisclosurePrepaidExpensesAndOtherCurrentAssets">
        <link:definition>100110 - Disclosure - Prepaid Expenses and Other Current Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureAccruedExpenses" id="Role_DisclosureAccruedExpenses">
        <link:definition>100120 - Disclosure - Accrued Expenses</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/DisclosureLicenseAndCollaborationAgreements1" id="DisclosureLicenseAndCollaborationAgreements1">
        <link:definition>100130 - Disclosure - License and Collaboration Agreements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureCommitmentsAndContingencies" id="Role_DisclosureCommitmentsAndContingencies">
        <link:definition>100140 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureConvertiblePreferredStock" id="Role_DisclosureConvertiblePreferredStock">
        <link:definition>100150 - Disclosure - Convertible Preferred Stock</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureCommonStock" id="Role_DisclosureCommonStock">
        <link:definition>100160 - Disclosure - Common Stock</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureShareBasedCompensation" id="Role_DisclosureShareBasedCompensation">
        <link:definition>100170 - Disclosure - Share Based Compensation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureIncomeTaxes" id="Role_DisclosureIncomeTaxes">
        <link:definition>100180 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureDefinedContributionPlan" id="Role_DisclosureDefinedContributionPlan">
        <link:definition>100190 - Disclosure - Defined Contribution Plan</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureNetLossPerShare" id="Role_DisclosureNetLossPerShare">
        <link:definition>100200 - Disclosure - Net Loss Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureRelatedPartyTransactions" id="Role_DisclosureRelatedPartyTransactions">
        <link:definition>100210 - Disclosure - Related Party Transactions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureSubsequentEvents" id="Role_DisclosureSubsequentEvents">
        <link:definition>100220 - Disclosure - Subsequent Events</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies" id="Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies">
        <link:definition>100230 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureFairValueMeasurementsTables" id="Role_DisclosureFairValueMeasurementsTables">
        <link:definition>100240 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosurePrepaidExpensesAndOtherCurrentAssetsTables" id="Role_DisclosurePrepaidExpensesAndOtherCurrentAssetsTables">
        <link:definition>100250 - Disclosure - Prepaid Expenses and Other Current Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureAccruedExpensesTables" id="Role_DisclosureAccruedExpensesTables">
        <link:definition>100260 - Disclosure - Accrued Expenses (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureConvertiblePreferredStockTables" id="Role_DisclosureConvertiblePreferredStockTables">
        <link:definition>100270 - Disclosure - Convertible Preferred Stock (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureShareBasedCompensationTables" id="Role_DisclosureShareBasedCompensationTables">
        <link:definition>100280 - Disclosure - Share Based Compensation (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureNetLossPerShareTables" id="Role_DisclosureNetLossPerShareTables">
        <link:definition>100290 - Disclosure - Net Loss per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureNatureOfBusinessAndBasisOfPresentationAdditionalInformationDetail" id="Role_DisclosureNatureOfBusinessAndBasisOfPresentationAdditionalInformationDetail">
        <link:definition>100300 - Disclosure - Nature of Business and Basis of Presentation - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureFairValueMeasurementsSummaryOfAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail" id="Role_DisclosureFairValueMeasurementsSummaryOfAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail">
        <link:definition>100310 - Disclosure - Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureFairValueMeasurementsAdditionalInformationDetail" id="Role_DisclosureFairValueMeasurementsAdditionalInformationDetail">
        <link:definition>100320 - Disclosure - Fair Value Measurements - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosurePrepaidExpensesAndOtherCurrentAssetsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetails" id="Role_DisclosurePrepaidExpensesAndOtherCurrentAssetsSummaryOfPrepaidExpensesAndOtherCurrentAssetsDetails">
        <link:definition>100330 - Disclosure - Prepaid Expenses and Other Current Assets - Summary of Prepaid Expenses and Other Current Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureAccruedExpensesScheduleOfAccruedExpensesDetails" id="Role_DisclosureAccruedExpensesScheduleOfAccruedExpensesDetails">
        <link:definition>100340 - Disclosure - Accrued Expenses - Schedule of Accrued Expenses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/DisclosureLicenseAndCollaborationAgreementsAdditionalInformationDetails" id="DisclosureLicenseAndCollaborationAgreementsAdditionalInformationDetails">
        <link:definition>100350 - Disclosure - License and Collaboration Agreements - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureConvertiblePreferredStockAdditionalInformationDetails" id="Role_DisclosureConvertiblePreferredStockAdditionalInformationDetails">
        <link:definition>100360 - Disclosure - Convertible Preferred Stock - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureConvertiblePreferredStockScheduleOfPreferredStockAtBalanceSheetDetails" id="Role_DisclosureConvertiblePreferredStockScheduleOfPreferredStockAtBalanceSheetDetails">
        <link:definition>100370 - Disclosure - Convertible Preferred Stock - Schedule of Preferred Stock at Balance Sheet (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureCommonStockAdditionalInformationDetails" id="Role_DisclosureCommonStockAdditionalInformationDetails">
        <link:definition>100380 - Disclosure - Common Stock - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureShareBasedCompensationAdditionalInformationDetails" id="Role_DisclosureShareBasedCompensationAdditionalInformationDetails">
        <link:definition>100390 - Disclosure - Share Based Compensation - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureShareBasedCompensationScheduleOfWeightedAverageFairValuesAndValuationAssumptionsDetails" id="Role_DisclosureShareBasedCompensationScheduleOfWeightedAverageFairValuesAndValuationAssumptionsDetails">
        <link:definition>100400 - Disclosure - Share Based Compensation - Schedule of Weighted Average Fair Values and Valuation Assumptions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" id="Role_DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails">
        <link:definition>100410 - Disclosure - Share Based Compensation - Summary of Stock Option Activity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureShareBasedCompensationScheduleOfUnvestedCommonStockFromOptionEarlyExercisesDetails" id="Role_DisclosureShareBasedCompensationScheduleOfUnvestedCommonStockFromOptionEarlyExercisesDetails">
        <link:definition>100420 - Disclosure - Share Based Compensation - Schedule of Unvested Common Stock From Option Early Exercises (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureShareBasedCompensationSummaryOfShareBasedCompensationExpenseRecognizedDetails" id="Role_DisclosureShareBasedCompensationSummaryOfShareBasedCompensationExpenseRecognizedDetails">
        <link:definition>100430 - Disclosure - Share Based Compensation - Summary of Share Based Compensation Expense Recognized (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureIncomeTaxesAdditionalInformationDetails" id="Role_DisclosureIncomeTaxesAdditionalInformationDetails">
        <link:definition>100440 - Disclosure - Income Taxes - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureDefinedContributionPlanAdditionalInformationDetails" id="Role_DisclosureDefinedContributionPlanAdditionalInformationDetails">
        <link:definition>100450 - Disclosure - Defined Contribution Plan - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureNetLossPerShareBasicAndDilutedNetLossPerShareAttributableToCommonStockholdersDetail" id="Role_DisclosureNetLossPerShareBasicAndDilutedNetLossPerShareAttributableToCommonStockholdersDetail">
        <link:definition>100460 - Disclosure - Net Loss Per Share - Basic and Diluted Net Loss Per Share Attributable to Common Stockholders (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureNetLossPerShareDilutedNetLossPerShareAttributableToCommonStockholdersDetail" id="Role_DisclosureNetLossPerShareDilutedNetLossPerShareAttributableToCommonStockholdersDetail">
        <link:definition>100470 - Disclosure - Net Loss Per Share - Diluted Net Loss Per Share Attributable to Common Stockholders (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureRelatedPartyTransactionsAdditionalInformationDetails" id="Role_DisclosureRelatedPartyTransactionsAdditionalInformationDetails">
        <link:definition>100480 - Disclosure - Related Party Transactions - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://adagiotx.com/20210630/taxonomy/role/Role_DisclosureSubsequentEventsAdditionalInformationDetails" id="Role_DisclosureSubsequentEventsAdditionalInformationDetails">
        <link:definition>100490 - Disclosure - Subsequent Events - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element id="adgi_LicenseAgreementsAbstract" name="LicenseAgreementsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_AccruedExternalResearchDevelopmentAndManufacturingExpensesCurrent" name="AccruedExternalResearchDevelopmentAndManufacturingExpensesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="adgi_AccruedUpfrontFee" name="AccruedUpfrontFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="adgi_AcquiredInProcessResearchAndDevelopment" name="AcquiredInProcessResearchAndDevelopment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_AcquiredInProcessResearchAndDevelopmentExpense" name="AcquiredInProcessResearchAndDevelopmentExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_AmountPaidAsPrePaidFundingForResearchPlan" name="AmountPaidAsPrePaidFundingForResearchPlan" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_AmountPaidForServices" name="AmountPaidForServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_CommonStockFairValue" name="CommonStockFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="adgi_CompletionFee" name="CompletionFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_DeferredOfferingAndIssuanceCostsIncludedInAccountsPayableAndAccruedExpenses" name="DeferredOfferingAndIssuanceCostsIncludedInAccountsPayableAndAccruedExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="adgi_DeferredOfferingCostsNoncurrent" name="DeferredOfferingCostsNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_DeliveryFee" name="DeliveryFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_EarlyExerciseLiability" name="EarlyExerciseLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="adgi_ExerciseFee" name="ExerciseFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_FairValueTransfersBetweenLevelsTransfersAmount" name="FairValueTransfersBetweenLevelsTransfersAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="adgi_IssuanceOfRestrictedCommonStockUponEarlyExerciseOfStockOptions" name="IssuanceOfRestrictedCommonStockUponEarlyExerciseOfStockOptions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="adgi_IssuanceOfRestrictedCommonStockUponEarlyExerciseOfStockOptionsShare" name="IssuanceOfRestrictedCommonStockUponEarlyExerciseOfStockOptionsShare" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_MilestonePayment" name="MilestonePayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_NetIncomeLossAvailableToCommonStockholders" name="NetIncomeLossAvailableToCommonStockholders" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="adgi_NetIncomeLossPerShareAttributableToCommonStockholdersBasicAndDiluted" name="NetIncomeLossPerShareAttributableToCommonStockholdersBasicAndDiluted" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_NetIssuanceCostOfConvertiblePreferredStock" name="NetIssuanceCostOfConvertiblePreferredStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="adgi_NonCashPayments" name="NonCashPayments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_NumberOfCommonSharesIssuedIncreased" name="NumberOfCommonSharesIssuedIncreased" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="adgi_NumberOfCommonStockRepurchasedNotRetired" name="NumberOfCommonStockRepurchasedNotRetired" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="adgi_NumberOfCommonStockRepurchasedRetiredAndRedesignated" name="NumberOfCommonStockRepurchasedRetiredAndRedesignated" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="adgi_PaymentsOfInitialPublicOfferingCosts" name="PaymentsOfInitialPublicOfferingCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="adgi_PaymentsToAcquireRoyalty" name="PaymentsToAcquireRoyalty" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_PercentageOfTotalNumberOfSharesOfCommonStockOutstanding" name="PercentageOfTotalNumberOfSharesOfCommonStockOutstanding" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_PotentialMilestonePayment" name="PotentialMilestonePayment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="adgi_PreferredStockFairValue" name="PreferredStockFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="adgi_PreferredStockOriginalIssueAndConversionPricePerShare" name="PreferredStockOriginalIssueAndConversionPricePerShare" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="adgi_PrepaidCompensationAndRelatedExpenses" name="PrepaidCompensationAndRelatedExpenses" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_PrepaidExternalResearchDevelopmentAndManufacturingExpenseCurrent" name="PrepaidExternalResearchDevelopmentAndManufacturingExpenseCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_PrepaidPayrollAndRelatedExpensesCurrent" name="PrepaidPayrollAndRelatedExpensesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_QuarterlyFee" name="QuarterlyFee" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_RoyaltyBasedOnNetSalesOfLicensedProductsPercentage" name="RoyaltyBasedOnNetSalesOfLicensedProductsPercentage" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_RoyaltyPercentageOfSublicenseConsideration" name="RoyaltyPercentageOfSublicenseConsideration" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsRepurchasedInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsRepurchasedInPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisePricePercentageOfFairValueOfCommonStock" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisePricePercentageOfFairValueOfCommonStock" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfVotingInterestsThreshold" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfVotingInterestsThreshold" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingNumberOfQuarterlyInstallment" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingNumberOfQuarterlyInstallment" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingNumberOfQuarterlyInstallmentSucceedingPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingNumberOfQuarterlyInstallmentSucceedingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_StockIssuedDuringPeriodSharesNewIssuesUnderwritersSubscription" name="StockIssuedDuringPeriodSharesNewIssuesUnderwritersSubscription" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_TemporaryEquityStockIssuedDuringPeriodShareNewIssues" name="TemporaryEquityStockIssuedDuringPeriodShareNewIssues" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_UnderwritingDiscountsAndCommissions" name="UnderwritingDiscountsAndCommissions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="adgi_OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems" name="OrganizationConsolidationAndPresentationOfFinancialStatementsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_AdimabAssignmentAgreementMember" name="AdimabAssignmentAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_AdimabCollaborationAgreementMember" name="AdimabCollaborationAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_EquityIncentivePlanMember" name="EquityIncentivePlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_FirstProductMember" name="FirstProductMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_FourHundredOneKPlanMember" name="FourHundredOneKPlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_InProcessResearchAndDevelopmentExpenseMember" name="InProcessResearchAndDevelopmentExpenseMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_ResearchDevelopmentAndRegulatoryMilestoneMember" name="ResearchDevelopmentAndRegulatoryMilestoneMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_SecondProductMember" name="SecondProductMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_StockOptionsToPurchaseCommonStockMember" name="StockOptionsToPurchaseCommonStockMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_TwoThousandAndTwentyOneEmployeeStockPurchasePlanMember" name="TwoThousandAndTwentyOneEmployeeStockPurchasePlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_TwoThousandTwentyEquityIncentivePlanMember" name="TwoThousandTwentyEquityIncentivePlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_TwoThousandTwentyOneEquityIncentivePlanMember" name="TwoThousandTwentyOneEquityIncentivePlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_UnvestedRestrictedCommonStockMember" name="UnvestedRestrictedCommonStockMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_WuXiCellLineLicenseAgreementMember" name="WuXiCellLineLicenseAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_EmergingGrowthCompanyPolicyTextBlock" name="EmergingGrowthCompanyPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_UnauditedInterimFinancialInformationPolicyTextBlock" name="UnauditedInterimFinancialInformationPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_OrganizationConsolidationAndPresentationOfFinancialStatementsTable" name="OrganizationConsolidationAndPresentationOfFinancialStatementsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="adgi_ScheduleOfEarningsPerShareDilutedAttributableToCommonStockholdersTableTextBlock" name="ScheduleOfEarningsPerShareDilutedAttributableToCommonStockholdersTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_ScheduleOfPrepaidExpensesAndOtherCurrentAssetsTableTextBlock" name="ScheduleOfPrepaidExpensesAndOtherCurrentAssetsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="adgi_PrepaidExpensesOtherCurrentAssetsTextBlock" name="PrepaidExpensesOtherCurrentAssetsTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
</xsd:schema>
