﻿<?xml version="1.0" encoding="utf-8"?>
<Return returnVersion="2023v5.1" xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.irs.gov/efile">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2024-09-06T22:47:03-05:00</ReturnTs>
    <TaxPeriodEndDt>2023-12-31</TaxPeriodEndDt>
    <ReturnTypeCd>990</ReturnTypeCd>
    <TaxPeriodBeginDt>2023-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>812862096</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>Institute of Quantitative Systems Pharmacology</BusinessNameLine1Txt>
        <BusinessNameLine2Txt>IQSP</BusinessNameLine2Txt>
      </BusinessName>
      <InCareOfNm>% M Guillaume Wientjes</InCareOfNm>
      <BusinessNameControlTxt>INST</BusinessNameControlTxt>
      <PhoneNum>7604381155</PhoneNum>
      <USAddress>
        <AddressLine1Txt>1815 Aston Ave Ste STE 107</AddressLine1Txt>
        <CityNm>Carlsbad</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>920087340</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>M GUILLAUME WIENTJES</PersonNm>
      <PersonTitleTxt>Secretary</PersonTitleTxt>
      <PhoneNum>6145708878</PhoneNum>
      <SignatureDt>2024-09-06</SignatureDt>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>false</IRSResponsiblePrtyInfoCurrInd>
    <TaxYr>2023</TaxYr>
    <BuildTS>2024-08-08 14:25:15Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="5">
    <IRS990 documentId="IRS990-54-1" softwareId="23017732" softwareVersionNum="ta23mefv1.0" referenceDocumentId="IRS990ScheduleO-119-1">
      <DoingBusinessAsName>
        <BusinessNameLine1Txt>IQSP</BusinessNameLine1Txt>
      </DoingBusinessAsName>
      <PrincipalOfficerNm>M GUILLAUME WIENTJES</PrincipalOfficerNm>
      <USAddress>
        <AddressLine1Txt>1815 Aston Ave Ste STE 107</AddressLine1Txt>
        <CityNm>Carlsbad</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>920087340</ZIPCd>
      </USAddress>
      <GrossReceiptsAmt>1108915</GrossReceiptsAmt>
      <GroupReturnForAffiliatesInd>false</GroupReturnForAffiliatesInd>
      <Organization501c3Ind>X</Organization501c3Ind>
      <WebsiteAddressTxt>https://i-qsp.org/</WebsiteAddressTxt>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <FormationYr>2016</FormationYr>
      <LegalDomicileStateCd>CA</LegalDomicileStateCd>
      <ActivityOrMissionDesc>IQSPs mission is to advance drug development through instruction in and application of quantitative systems pharmacology</ActivityOrMissionDesc>
      <VotingMembersGoverningBodyCnt>3</VotingMembersGoverningBodyCnt>
      <VotingMembersIndependentCnt>3</VotingMembersIndependentCnt>
      <TotalEmployeeCnt>1</TotalEmployeeCnt>
      <TotalGrossUBIAmt>0</TotalGrossUBIAmt>
      <PYContributionsGrantsAmt>1196189</PYContributionsGrantsAmt>
      <CYContributionsGrantsAmt>866660</CYContributionsGrantsAmt>
      <CYProgramServiceRevenueAmt>0</CYProgramServiceRevenueAmt>
      <PYInvestmentIncomeAmt>32989</PYInvestmentIncomeAmt>
      <CYInvestmentIncomeAmt>242255</CYInvestmentIncomeAmt>
      <CYOtherRevenueAmt>0</CYOtherRevenueAmt>
      <PYTotalRevenueAmt>1229178</PYTotalRevenueAmt>
      <CYTotalRevenueAmt>1108915</CYTotalRevenueAmt>
      <CYGrantsAndSimilarPaidAmt>0</CYGrantsAndSimilarPaidAmt>
      <CYBenefitsPaidToMembersAmt>0</CYBenefitsPaidToMembersAmt>
      <PYSalariesCompEmpBnftPaidAmt>353396</PYSalariesCompEmpBnftPaidAmt>
      <CYSalariesCompEmpBnftPaidAmt>295223</CYSalariesCompEmpBnftPaidAmt>
      <CYTotalProfFndrsngExpnsAmt>0</CYTotalProfFndrsngExpnsAmt>
      <CYTotalFundraisingExpenseAmt>0</CYTotalFundraisingExpenseAmt>
      <PYOtherExpensesAmt>160423</PYOtherExpensesAmt>
      <CYOtherExpensesAmt>148524</CYOtherExpensesAmt>
      <PYTotalExpensesAmt>513819</PYTotalExpensesAmt>
      <CYTotalExpensesAmt>443747</CYTotalExpensesAmt>
      <PYRevenuesLessExpensesAmt>715359</PYRevenuesLessExpensesAmt>
      <CYRevenuesLessExpensesAmt>665168</CYRevenuesLessExpensesAmt>
      <TotalAssetsBOYAmt>4869056</TotalAssetsBOYAmt>
      <TotalAssetsEOYAmt>5735465</TotalAssetsEOYAmt>
      <TotalLiabilitiesBOYAmt>3742</TotalLiabilitiesBOYAmt>
      <TotalLiabilitiesEOYAmt>-3248</TotalLiabilitiesEOYAmt>
      <NetAssetsOrFundBalancesBOYAmt>4865314</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>5738713</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <MissionDesc>IQSP's mission is to advance drug development through instruction in and application of quantitative systems pharmacology</MissionDesc>
      <SignificantNewProgramSrvcInd>false</SignificantNewProgramSrvcInd>
      <SignificantChangeInd>false</SignificantChangeInd>
      <ExpenseAmt>275920</ExpenseAmt>
      <Desc>See Schedule O</Desc>
      <TotalProgramServiceExpensesAmt>275920</TotalProgramServiceExpensesAmt>
      <DescribedInSection501c3Ind referenceDocumentId="IRS990ScheduleA-93-1">true</DescribedInSection501c3Ind>
      <ScheduleBRequiredInd referenceDocumentId="IRS990ScheduleB-101-1">true</ScheduleBRequiredInd>
      <PoliticalCampaignActyInd>false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd>false</LobbyingActivitiesInd>
      <SubjectToProxyTaxInd>false</SubjectToProxyTaxInd>
      <DonorAdvisedFundInd referenceDocumentId="IRS990ScheduleD-103-1">false</DonorAdvisedFundInd>
      <ConservationEasementsInd referenceDocumentId="IRS990ScheduleD-103-1">false</ConservationEasementsInd>
      <CollectionsOfArtInd referenceDocumentId="IRS990ScheduleD-103-1">false</CollectionsOfArtInd>
      <CreditCounselingInd referenceDocumentId="IRS990ScheduleD-103-1">false</CreditCounselingInd>
      <DonorRstrOrQuasiEndowmentsInd referenceDocumentId="IRS990ScheduleD-103-1">false</DonorRstrOrQuasiEndowmentsInd>
      <ReportLandBuildingEquipmentInd referenceDocumentId="IRS990ScheduleD-103-1">true</ReportLandBuildingEquipmentInd>
      <ReportInvestmentsOtherSecInd referenceDocumentId="IRS990ScheduleD-103-1">false</ReportInvestmentsOtherSecInd>
      <ReportProgramRelatedInvstInd referenceDocumentId="IRS990ScheduleD-103-1">false</ReportProgramRelatedInvstInd>
      <ReportOtherAssetsInd referenceDocumentId="IRS990ScheduleD-103-1">false</ReportOtherAssetsInd>
      <ReportOtherLiabilitiesInd referenceDocumentId="IRS990ScheduleD-103-1">false</ReportOtherLiabilitiesInd>
      <IncludeFIN48FootnoteInd referenceDocumentId="IRS990ScheduleD-103-1">false</IncludeFIN48FootnoteInd>
      <IndependentAuditFinclStmtInd referenceDocumentId="IRS990ScheduleD-103-1">false</IndependentAuditFinclStmtInd>
      <ConsolidatedAuditFinclStmtInd referenceDocumentId="IRS990ScheduleD-103-1">false</ConsolidatedAuditFinclStmtInd>
      <SchoolOperatingInd>false</SchoolOperatingInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <ForeignActivitiesInd>false</ForeignActivitiesInd>
      <MoreThan5000KToOrgInd>false</MoreThan5000KToOrgInd>
      <MoreThan5000KToIndividualsInd>false</MoreThan5000KToIndividualsInd>
      <ProfessionalFundraisingInd>false</ProfessionalFundraisingInd>
      <FundraisingActivitiesInd>false</FundraisingActivitiesInd>
      <GamingActivitiesInd>false</GamingActivitiesInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <GrantsToOrganizationsInd>false</GrantsToOrganizationsInd>
      <GrantsToIndividualsInd>false</GrantsToIndividualsInd>
      <ScheduleJRequiredInd>false</ScheduleJRequiredInd>
      <TaxExemptBondsInd>false</TaxExemptBondsInd>
      <EngagedInExcessBenefitTransInd>false</EngagedInExcessBenefitTransInd>
      <PYExcessBenefitTransInd>false</PYExcessBenefitTransInd>
      <LoanOutstandingInd>false</LoanOutstandingInd>
      <GrantToRelatedPersonInd>false</GrantToRelatedPersonInd>
      <BusinessRlnWithOrgMemInd>false</BusinessRlnWithOrgMemInd>
      <BusinessRlnWithFamMemInd>false</BusinessRlnWithFamMemInd>
      <BusinessRlnWith35CtrlEntInd>false</BusinessRlnWith35CtrlEntInd>
      <DeductibleNonCashContriInd>false</DeductibleNonCashContriInd>
      <DeductibleArtContributionInd>false</DeductibleArtContributionInd>
      <TerminateOperationsInd>false</TerminateOperationsInd>
      <PartialLiquidationInd>false</PartialLiquidationInd>
      <DisregardedEntityInd>false</DisregardedEntityInd>
      <RelatedEntityInd>false</RelatedEntityInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <ActivitiesConductedPrtshpInd>false</ActivitiesConductedPrtshpInd>
      <ScheduleORequiredInd>true</ScheduleORequiredInd>
      <IRPDocumentCnt>1</IRPDocumentCnt>
      <IRPDocumentW2GCnt>0</IRPDocumentW2GCnt>
      <BackupWthldComplianceInd>true</BackupWthldComplianceInd>
      <EmployeeCnt>1</EmployeeCnt>
      <EmploymentTaxReturnsFiledInd>true</EmploymentTaxReturnsFiledInd>
      <UnrelatedBusIncmOverLimitInd>false</UnrelatedBusIncmOverLimitInd>
      <Form990TFiledInd>false</Form990TFiledInd>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <TaxablePartyNotificationInd>false</TaxablePartyNotificationInd>
      <NondeductibleContributionsInd>false</NondeductibleContributionsInd>
      <IndoorTanningServicesInd>false</IndoorTanningServicesInd>
      <SubjToTaxRmnrtnExPrchtPymtInd>false</SubjToTaxRmnrtnExPrchtPymtInd>
      <SubjectToExcsTaxNetInvstIncInd>false</SubjectToExcsTaxNetInvstIncInd>
      <ExcsTaxSect4951Or4952Or4953Ind>false</ExcsTaxSect4951Or4952Or4953Ind>
      <InfoInScheduleOPartVIInd>X</InfoInScheduleOPartVIInd>
      <GoverningBodyVotingMembersCnt>3</GoverningBodyVotingMembersCnt>
      <IndependentVotingMemberCnt>3</IndependentVotingMemberCnt>
      <FamilyOrBusinessRlnInd>true</FamilyOrBusinessRlnInd>
      <DelegationOfMgmtDutiesInd>false</DelegationOfMgmtDutiesInd>
      <ChangeToOrgDocumentsInd>false</ChangeToOrgDocumentsInd>
      <MaterialDiversionOrMisuseInd>false</MaterialDiversionOrMisuseInd>
      <MembersOrStockholdersInd>false</MembersOrStockholdersInd>
      <ElectionOfBoardMembersInd>false</ElectionOfBoardMembersInd>
      <DecisionsSubjectToApprovaInd>false</DecisionsSubjectToApprovaInd>
      <MinutesOfGoverningBodyInd>true</MinutesOfGoverningBodyInd>
      <MinutesOfCommitteesInd>true</MinutesOfCommitteesInd>
      <OfficerMailingAddressInd>false</OfficerMailingAddressInd>
      <LocalChaptersInd>false</LocalChaptersInd>
      <Form990ProvidedToGvrnBodyInd>false</Form990ProvidedToGvrnBodyInd>
      <ConflictOfInterestPolicyInd>true</ConflictOfInterestPolicyInd>
      <AnnualDisclosureCoveredPrsnInd>true</AnnualDisclosureCoveredPrsnInd>
      <RegularMonitoringEnfrcInd>true</RegularMonitoringEnfrcInd>
      <WhistleblowerPolicyInd>true</WhistleblowerPolicyInd>
      <DocumentRetentionPolicyInd>true</DocumentRetentionPolicyInd>
      <CompensationProcessCEOInd>true</CompensationProcessCEOInd>
      <CompensationProcessOtherInd>true</CompensationProcessOtherInd>
      <InvestmentInJointVentureInd>false</InvestmentInJointVentureInd>
      <StatesWhereCopyOfReturnIsFldCd>CA</StatesWhereCopyOfReturnIsFldCd>
      <UponRequestInd>X</UponRequestInd>
      <BooksInCareOfDetail>
        <PersonNm>M GUILLAUME WIENTJES</PersonNm>
        <PhoneNum>6145708878</PhoneNum>
        <USAddress>
          <AddressLine1Txt>1815 Aston Ave Ste STE 107</AddressLine1Txt>
          <CityNm>Carlsbad</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>920087340</ZIPCd>
        </USAddress>
      </BooksInCareOfDetail>
      <NoListedPersonsCompensatedInd>X</NoListedPersonsCompensatedInd>
      <Form990PartVIISectionAGrp>
        <PersonNm>JESSIE L AU PHARMD PHD</PersonNm>
        <TitleTxt>Chair</TitleTxt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>VINCENT H LEE PHD DSC</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ROY S WU PHD</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>M GUILLAUME WIENTJES</PersonNm>
        <TitleTxt>Secretary Treasurer</TitleTxt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <IndivRcvdGreaterThan100KCnt>1</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>false</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <GovernmentGrantsAmt>228675</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>637985</AllOtherContributionsAmt>
      <TotalContributionsAmt>866660</TotalContributionsAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>242255</TotalRevenueColumnAmt>
        <ExclusionAmt>242255</ExclusionAmt>
      </InvestmentIncomeGrp>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncmFromFundraisingEvtGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>1108915</TotalRevenueColumnAmt>
        <ExclusionAmt>242255</ExclusionAmt>
      </TotalRevenueGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>104421</TotalAmt>
        <ProgramServicesAmt>77745</ProgramServicesAmt>
        <ManagementAndGeneralAmt>26676</ManagementAndGeneralAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>160120</TotalAmt>
        <ProgramServicesAmt>160120</ProgramServicesAmt>
      </OtherSalariesAndWagesGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>18378</TotalAmt>
        <ProgramServicesAmt>18378</ProgramServicesAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>12304</TotalAmt>
        <ProgramServicesAmt>12304</ProgramServicesAmt>
      </PayrollTaxesGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>6247</TotalAmt>
        <ManagementAndGeneralAmt>6247</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>4909</TotalAmt>
        <ManagementAndGeneralAmt>4909</ManagementAndGeneralAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>715</TotalAmt>
        <ManagementAndGeneralAmt>715</ManagementAndGeneralAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>105290</TotalAmt>
        <ManagementAndGeneralAmt>105290</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>196</TotalAmt>
        <ManagementAndGeneralAmt>196</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <InsuranceGrp>
        <TotalAmt>11121</TotalAmt>
        <ManagementAndGeneralAmt>11121</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>Materials/Supplies</Desc>
        <TotalAmt>13935</TotalAmt>
        <ProgramServicesAmt>7373</ProgramServicesAmt>
        <ManagementAndGeneralAmt>6562</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Dues and Subscriptions</Desc>
        <TotalAmt>6111</TotalAmt>
        <ManagementAndGeneralAmt>6111</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>443747</TotalAmt>
        <ProgramServicesAmt>275920</ProgramServicesAmt>
        <ManagementAndGeneralAmt>167827</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>734115</BOYAmt>
        <EOYAmt>131435</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>150429</BOYAmt>
        <EOYAmt>71513</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <AccountsReceivableGrp>
        <EOYAmt>500000</EOYAmt>
      </AccountsReceivableGrp>
      <LandBldgEquipCostOrOtherBssAmt>77072</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>77072</LandBldgEquipAccumDeprecAmt>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>3984512</BOYAmt>
        <EOYAmt>5032517</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <TotalAssetsGrp>
        <BOYAmt>4869056</BOYAmt>
        <EOYAmt>5735465</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>3742</BOYAmt>
        <EOYAmt>-3248</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>3742</BOYAmt>
        <EOYAmt>-3248</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>327183</BOYAmt>
        <EOYAmt>438723</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>4538131</BOYAmt>
        <EOYAmt>5299990</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>4865314</BOYAmt>
        <EOYAmt>5738713</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>4869056</BOYAmt>
        <EOYAmt>5735465</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>665168</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>208228</NetUnrlzdGainsLossesInvstAmt>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="IRS990ScheduleA-93-1" softwareId="23017732" softwareVersionNum="ta23mefv1.0">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>435132</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>1164925</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1156315</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1196189</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>866660</CurrentTaxYearAmt>
        <TotalAmt>4819221</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>435132</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>1164925</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1156315</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>1196189</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>866660</CurrentTaxYearAmt>
        <TotalAmt>4819221</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>2670914</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>2148307</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>35435</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>68262</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>118778</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>32989</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>242255</CurrentTaxYearAmt>
        <TotalAmt>497719</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <TotalSupportAmt>5316940</TotalSupportAmt>
      <PublicSupportCY170Pct>0.40405</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.40575</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="IRS990ScheduleB-101-1" softwareId="23017732" softwareVersionNum="ta23mefv1.0">
      <ContributorInformationGrp>
        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="IRS990ScheduleD-103-1" softwareId="23017732" softwareVersionNum="ta23mefv1.0">
      <DisclosedOrgLegCtrlInd>false</DisclosedOrgLegCtrlInd>
      <DisclosedForCharitablePrpsInd>false</DisclosedForCharitablePrpsInd>
      <WrittenPolicyMonitoringInd>false</WrittenPolicyMonitoringInd>
      <Section170hRqrStsfdInd>false</Section170hRqrStsfdInd>
      <SolicitedAssetsSaleInd>false</SolicitedAssetsSaleInd>
      <AgentTrusteeEtcInd>false</AgentTrusteeEtcInd>
      <InclEscrowCustodialAcctLiabInd>false</InclEscrowCustodialAcctLiabInd>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>77072</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>77072</DepreciationAmt>
      </EquipmentGrp>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="IRS990ScheduleO-120-1" softwareId="23017732" softwareVersionNum="ta23mefv1.0">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part VI Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>Jessie Au (Chair) and M Guill Wientjes (Secretary, Treasurer) are married</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part VI Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>No review was or will be conducted.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part VI Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Potential conflicts of interest for all officers and key personnel are</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part VI Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>reviewed annually</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part VI Line 15a or b</FormAndLineReferenceDesc>
        <ExplanationTxt>Compensation for performance of officer duties in IQSP is $0</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part VI Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>IQSP documents are available at: https://rct.doj.ca.gov/ (Reg Ver Search T)</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part VI Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Additional documents are available to the public upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>PROGRAM ACCOMPLISHMENTS</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>High failure rate in drug development is a factor driving up the</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>health care costs in the US and around the world. The Food and</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>and Drug Administration (FDA) and National Institutes of Health</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>(NIH) recognize that increased application of computational</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>modeling, often referred to as Model-Informed Drug Development</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>or Quantitative Systems Pharmacology, will be an important factor</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>leading to smarter drug development processes and better decision</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>making. The NIH even issued a White Paper in 2011 naming</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>establishment of research and teaching programs in quantitative</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>systems pharmacology as a national high priority. The FDA, under</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>the 2017 FDA Reauthorization Act, has committed to adopting</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>Model-Informed Drug Development (MIDD) in regulatory consideration</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>of applications for new drugs and generic drugs.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>Quantitative Systems Pharmacology (QSP) uses</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>computational modeling to gain or enhance understanding of</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>biological systems. MIDD is a sub-area of QSP and refers to using</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>quantitative models to facilitate the decision-making process and</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>address drug development and regulatory questions in four</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>categories: dose optimization, supportive evidence for efficacy,</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>clinical trial design, and informing policy. MIDD is multidisciplinary</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>and requires knowledge in diverse fields including biology, physics,</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>chemistry, pharmacology, pharmaceutical sciences, computational</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>modeling, clinical sciences, and regulatory sciences. IQSP pursues</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>research and training in various areas of QSP and MIDD.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>Research in support of FDA contract award 75F40119C10139 was</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part III, line 4a</FormAndLineReferenceDesc>
        <ExplanationTxt>performed.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>