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    <link:label id="lab_abvx_PropertyPlantAndEquipmentIncludingRightofuseAssets_documentation_fr" xlink:label="lab_abvx_PropertyPlantAndEquipmentIncludingRightofuseAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Immobilisations corporelles incluant les actifs liés au droit d’utilisation</link:label>
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    <link:label id="lab_abvx_PartieCouranteDobligationsConvertibles_documentation_fr" xlink:label="lab_abvx_PartieCouranteDobligationsConvertibles" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Partie courante d'obligations convertibles</link:label>
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    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsKreos_label_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsKreos" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Augmentation Diminution du nombre d'actions émises grâce à l'exercice de bons de souscription d'actions Kreos</link:label>
    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsKreos_documentation_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsKreos" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Augmentation Diminution du nombre d'actions émises grâce à l'exercice de bons de souscription d'actions Kreos</link:label>
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    <link:label id="lab_abvx_CurrentReceivablesAndCurrentPrepaidExpenses_documentation_fr" xlink:label="lab_abvx_CurrentReceivablesAndCurrentPrepaidExpenses" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Créances et charges constatées d'avance courantes</link:label>
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    <link:label id="lab_abvx_ProduitsDeLemissionDactionsAutresQueParLexerciceDeBonsDeSouscription_label_fr" xlink:label="lab_abvx_ProduitsDeLemissionDactionsAutresQueParLexerciceDeBonsDeSouscription" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Produits de l’émission d’actions autres que par l’exercice de bons de souscription</link:label>
    <link:label id="lab_abvx_ProduitsDeLemissionDactionsAutresQueParLexerciceDeBonsDeSouscription_documentation_fr" xlink:label="lab_abvx_ProduitsDeLemissionDactionsAutresQueParLexerciceDeBonsDeSouscription" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Produits de l’émission d’actions autres que par l’exercice de bons de souscription</link:label>
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    <link:label id="lab_abvx_RepaymentsOfConvertibleLoanNotes_64b2a6d4-c118-4302-9652-3684a681562b_negatedLabel_fr" xlink:label="lab_abvx_RepaymentsOfConvertibleLoanNotes" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Remboursements d'obligations convertibles</link:label>
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    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_f5441cf3-ccc9-4f25-ac6b-d576fbc0e33b_totalLabel_fr" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Fluxdetrésorerierésultant(utilisésdanslecadre)desactivitésavantvariationsdufondsderoulement</link:label>
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    <link:label id="lab_abvx_AjustementsAuTitreDeLaDesactualisationLieAuxAvancesConditionnelles_documentation_fr" xlink:label="lab_abvx_AjustementsAuTitreDeLaDesactualisationLieAuxAvancesConditionnelles" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Ajustements au titre de la désactualisation lié aux avances conditionnelles</link:label>
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    <link:label id="lab_ifrs-full_OperatingExpense_1bc5cfef-3b90-4ca7-a440-2e6132daeb4b_negatedTotalLabel_fr" xlink:label="lab_ifrs-full_OperatingExpense" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="fr">Total des charges opérationnelles</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OperatingExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_OperatingExpense"/>
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    <link:label id="lab_ifrs-full_IncreaseDecreaseInWorkingCapital_eab20955-f9c7-4024-8b8f-0ce65b4465ee_negatedTotalLabel_fr" xlink:label="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="fr">Total Variation du besoin en fonds de roulement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital"/>
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    <link:label id="lab_abvx_ProduitNetDesCertificatsDeRedevances_label_fr" xlink:label="lab_abvx_ProduitNetDesCertificatsDeRedevances" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Produit net des certificats de redevances</link:label>
    <link:label id="lab_abvx_ProduitNetDesCertificatsDeRedevances_documentation_fr" xlink:label="lab_abvx_ProduitNetDesCertificatsDeRedevances" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Produit net des certificats de redevances</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_ProduitNetDesCertificatsDeRedevances" xlink:to="lab_abvx_ProduitNetDesCertificatsDeRedevances" xlink:type="arc" order="1"/>
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    <link:label id="lab_abvx_ExercicesDeBonsDeSouscriptionDactionsKreos_documentation_fr" xlink:label="lab_abvx_ExercicesDeBonsDeSouscriptionDactionsKreos" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Exercices de bons de souscription d’actions Kreos</link:label>
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    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities_58166d3c-52d4-4422-b6df-22aceba4cd36_totalLabel_fr" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Total Flux net de trésorerie lié aux activités opérationnelles</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
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    <link:label id="lab_abvx_NonCurrentPortionOfNonCurrentLoansReceivedExcludingRoyaltyCertificatesBondsOtherThanConvertibleNotesAndLeaseLiabilities_label_fr" xlink:label="lab_abvx_NonCurrentPortionOfNonCurrentLoansReceivedExcludingRoyaltyCertificatesBondsOtherThanConvertibleNotesAndLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Partie non courante de prêts perçus hors certificats de royalties, d’obligations émises autres que des obligations convertibles et de passifs au titre de contrats de location</link:label>
    <link:label id="lab_abvx_NonCurrentPortionOfNonCurrentLoansReceivedExcludingRoyaltyCertificatesBondsOtherThanConvertibleNotesAndLeaseLiabilities_documentation_fr" xlink:label="lab_abvx_NonCurrentPortionOfNonCurrentLoansReceivedExcludingRoyaltyCertificatesBondsOtherThanConvertibleNotesAndLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Partie non courante de prêts perçus hors certificats de royalties, d’obligations émises autres que des obligations convertibles et de passifs au titre de contrats de location</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_NonCurrentPortionOfNonCurrentLoansReceivedExcludingRoyaltyCertificatesBondsOtherThanConvertibleNotesAndLeaseLiabilities" xlink:href="abvx-2023-12-31.xsd#abvx_NonCurrentPortionOfNonCurrentLoansReceivedExcludingRoyaltyCertificatesBondsOtherThanConvertibleNotesAndLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_NonCurrentPortionOfNonCurrentLoansReceivedExcludingRoyaltyCertificatesBondsOtherThanConvertibleNotesAndLeaseLiabilities" xlink:to="lab_abvx_NonCurrentPortionOfNonCurrentLoansReceivedExcludingRoyaltyCertificatesBondsOtherThanConvertibleNotesAndLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_PaiementsPourLesDepots_310c6c8f-30c9-40cb-8081-1d890a45e3c3_negatedLabel_fr" xlink:label="lab_abvx_PaiementsPourLesDepots" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Paiements pour les dépôts</link:label>
    <link:label id="lab_abvx_PaiementsPourLesDepots_label_fr" xlink:label="lab_abvx_PaiementsPourLesDepots" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Paiements pour les dépôts</link:label>
    <link:label id="lab_abvx_PaiementsPourLesDepots_documentation_fr" xlink:label="lab_abvx_PaiementsPourLesDepots" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Paiements pour les dépôts</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_PaiementsPourLesDepots" xlink:href="abvx-2023-12-31.xsd#abvx_PaiementsPourLesDepots"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_PaiementsPourLesDepots" xlink:to="lab_abvx_PaiementsPourLesDepots" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_AvancesAuxCRO_label_fr" xlink:label="lab_abvx_AvancesAuxCRO" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Avances aux CRO</link:label>
    <link:label id="lab_abvx_AvancesAuxCRO_documentation_fr" xlink:label="lab_abvx_AvancesAuxCRO" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Avances aux CRO</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_AvancesAuxCRO" xlink:href="abvx-2023-12-31.xsd#abvx_AvancesAuxCRO"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_AvancesAuxCRO" xlink:to="lab_abvx_AvancesAuxCRO" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_SalesAndMarketingExpense_4ba08dba-beca-49cb-b483-ca5040451a16_negatedLabel_fr" xlink:label="lab_ifrs-full_SalesAndMarketingExpense" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Dépenses liées à la vente et à la commercialisation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_SalesAndMarketingExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_SalesAndMarketingExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_SalesAndMarketingExpense" xlink:to="lab_ifrs-full_SalesAndMarketingExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsAutresQueKreos_label_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsAutresQueKreos" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Augmentation Diminution du nombre d'actions émises grâce à l'exercice de bons de souscription d'actions autres que Kreos</link:label>
    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsAutresQueKreos_documentation_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsAutresQueKreos" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Augmentation Diminution du nombre d'actions émises grâce à l'exercice de bons de souscription d'actions autres que Kreos</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsAutresQueKreos" xlink:href="abvx-2023-12-31.xsd#abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsAutresQueKreos"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsAutresQueKreos" xlink:to="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsAutresQueKreos" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities_a63672e4-06fb-4b29-8ca4-bbcb4e6dc08b_totalLabel_fr" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Total Flux net de trésorerie lié aux opérations de financement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities_53ec0323-719b-49c7-9bb2-82bae5093def_negatedLabel_fr" xlink:label="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Intérêts payés, classés dans les activités de financement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_InterestPaidClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:to="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_ExercicesDeBonsDeSouscriptionDactionsAutresQueKreos_label_fr" xlink:label="lab_abvx_ExercicesDeBonsDeSouscriptionDactionsAutresQueKreos" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Exercices de bons de souscription d’actions autres que Kreos</link:label>
    <link:label id="lab_abvx_ExercicesDeBonsDeSouscriptionDactionsAutresQueKreos_documentation_fr" xlink:label="lab_abvx_ExercicesDeBonsDeSouscriptionDactionsAutresQueKreos" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Exercices de bons de souscription d’actions autres que Kreos</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_ExercicesDeBonsDeSouscriptionDactionsAutresQueKreos" xlink:href="abvx-2023-12-31.xsd#abvx_ExercicesDeBonsDeSouscriptionDactionsAutresQueKreos"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_ExercicesDeBonsDeSouscriptionDactionsAutresQueKreos" xlink:to="lab_abvx_ExercicesDeBonsDeSouscriptionDactionsAutresQueKreos" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_NonCurrentConvertibleLoanNotes_label_fr" xlink:label="lab_abvx_NonCurrentConvertibleLoanNotes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Partie non courante d'obligations convertibles</link:label>
    <link:label id="lab_abvx_NonCurrentConvertibleLoanNotes_documentation_fr" xlink:label="lab_abvx_NonCurrentConvertibleLoanNotes" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Partie non courante d'obligations convertibles</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_NonCurrentConvertibleLoanNotes" xlink:href="abvx-2023-12-31.xsd#abvx_NonCurrentConvertibleLoanNotes"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_NonCurrentConvertibleLoanNotes" xlink:to="lab_abvx_NonCurrentConvertibleLoanNotes" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_cc892d8a-35df-42d3-9919-1248cda1f2cd_negatedLabel_fr" xlink:label="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Paiements de passifs au titre de contrats de location, classés dans les activités de financement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:to="lab_ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_VariationDeLaTresorerieAbstract_label_fr" xlink:label="lab_abvx_VariationDeLaTresorerieAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Variation de la trésorerie [Abstract]</link:label>
    <link:label id="lab_abvx_VariationDeLaTresorerieAbstract_documentation_fr" xlink:label="lab_abvx_VariationDeLaTresorerieAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Variation de la trésorerie</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_VariationDeLaTresorerieAbstract" xlink:href="abvx-2023-12-31.xsd#abvx_VariationDeLaTresorerieAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_VariationDeLaTresorerieAbstract" xlink:to="lab_abvx_VariationDeLaTresorerieAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_PartieCouranteDePretsPercusDobligationsEmisesAutresQueDesObligationsConvertiblesEtDePassifsAuTitreDeContratsDeLocation_label_fr" xlink:label="lab_abvx_PartieCouranteDePretsPercusDobligationsEmisesAutresQueDesObligationsConvertiblesEtDePassifsAuTitreDeContratsDeLocation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Partie courante de prêts perçus, d’obligations émises autres que des obligations convertibles et de passifs au titre de contrats de location</link:label>
    <link:label id="lab_abvx_PartieCouranteDePretsPercusDobligationsEmisesAutresQueDesObligationsConvertiblesEtDePassifsAuTitreDeContratsDeLocation_documentation_fr" xlink:label="lab_abvx_PartieCouranteDePretsPercusDobligationsEmisesAutresQueDesObligationsConvertiblesEtDePassifsAuTitreDeContratsDeLocation" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Partie courante de prêts perçus, d’obligations émises autres que des obligations convertibles et de passifs au titre de contrats de location</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_PartieCouranteDePretsPercusDobligationsEmisesAutresQueDesObligationsConvertiblesEtDePassifsAuTitreDeContratsDeLocation" xlink:href="abvx-2023-12-31.xsd#abvx_PartieCouranteDePretsPercusDobligationsEmisesAutresQueDesObligationsConvertiblesEtDePassifsAuTitreDeContratsDeLocation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_PartieCouranteDePretsPercusDobligationsEmisesAutresQueDesObligationsConvertiblesEtDePassifsAuTitreDeContratsDeLocation" xlink:to="lab_abvx_PartieCouranteDePretsPercusDobligationsEmisesAutresQueDesObligationsConvertiblesEtDePassifsAuTitreDeContratsDeLocation" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_ExercicesDoptionsDansLeCadreDeLequityLineAgreement_label_fr" xlink:label="lab_abvx_ExercicesDoptionsDansLeCadreDeLequityLineAgreement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Exercices d'options dans le cadre de l'equity line agreement</link:label>
    <link:label id="lab_abvx_ExercicesDoptionsDansLeCadreDeLequityLineAgreement_documentation_fr" xlink:label="lab_abvx_ExercicesDoptionsDansLeCadreDeLequityLineAgreement" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Exercices d'options dans le cadre de l'equity line agreement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_ExercicesDoptionsDansLeCadreDeLequityLineAgreement" xlink:href="abvx-2023-12-31.xsd#abvx_ExercicesDoptionsDansLeCadreDeLequityLineAgreement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_ExercicesDoptionsDansLeCadreDeLequityLineAgreement" xlink:to="lab_abvx_ExercicesDoptionsDansLeCadreDeLequityLineAgreement" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactions_label_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Augmentation Diminution du nombre d'actions émises grâce à l'exercice de bons de souscription d'actions</link:label>
    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactions_documentation_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactions" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Augmentation Diminution du nombre d'actions émises grâce à l'exercice de bons de souscription d'actions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactions" xlink:href="abvx-2023-12-31.xsd#abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactions"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactions" xlink:to="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactions" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_RemboursementsDobligationsKREOS_e4cac5a2-657e-4747-ba41-6144131e7c25_negatedLabel_fr" xlink:label="lab_abvx_RemboursementsDobligationsKREOS" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Remboursements d'obligations KREOS</link:label>
    <link:label id="lab_abvx_RemboursementsDobligationsKREOS_label_fr" xlink:label="lab_abvx_RemboursementsDobligationsKREOS" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Remboursements d'obligations KREOS</link:label>
    <link:label id="lab_abvx_RemboursementsDobligationsKREOS_documentation_fr" xlink:label="lab_abvx_RemboursementsDobligationsKREOS" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr"></link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_RemboursementsDobligationsKREOS" xlink:href="abvx-2023-12-31.xsd#abvx_RemboursementsDobligationsKREOS"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_RemboursementsDobligationsKREOS" xlink:to="lab_abvx_RemboursementsDobligationsKREOS" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities_228102e1-abaa-4782-9521-61604a3a8ba1_totalLabel_fr" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Total Flux de trésorerie liés aux activités d'investissement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_06faafb8-f72d-44be-8362-89d9b93be010_negatedLabel_fr" xlink:label="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Achat d’immobilisations corporelles, classé dans les activités d’investissement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_IncreaseDecreaseInNumberOfOrdinarySharesIssuedThroughCapitalIncrease_label_fr" xlink:label="lab_abvx_IncreaseDecreaseInNumberOfOrdinarySharesIssuedThroughCapitalIncrease" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Augmentation Diminution du nombre d'actions ordinaires émises par augmentation de capital</link:label>
    <link:label id="lab_abvx_IncreaseDecreaseInNumberOfOrdinarySharesIssuedThroughCapitalIncrease_documentation_fr" xlink:label="lab_abvx_IncreaseDecreaseInNumberOfOrdinarySharesIssuedThroughCapitalIncrease" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Augmentation Diminution du nombre d'actions ordinaires émises par augmentation de capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_IncreaseDecreaseInNumberOfOrdinarySharesIssuedThroughCapitalIncrease" xlink:href="abvx-2023-12-31.xsd#abvx_IncreaseDecreaseInNumberOfOrdinarySharesIssuedThroughCapitalIncrease"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_IncreaseDecreaseInNumberOfOrdinarySharesIssuedThroughCapitalIncrease" xlink:to="lab_abvx_IncreaseDecreaseInNumberOfOrdinarySharesIssuedThroughCapitalIncrease" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_88f65bc4-4580-47f0-becf-733337f7af6c_totalLabel_fr" xlink:label="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Augmentation (diminution) de la trésorerie et des équivalents de trésorerie après effet des variations des taux de change</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:to="lab_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:type="arc" order="1"/>
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    <link:label id="lab_abvx_EmissionDeCapitauxPropresAutreQueParExerciceDeBonsDeSouscription_label_fr" xlink:label="lab_abvx_EmissionDeCapitauxPropresAutreQueParExerciceDeBonsDeSouscription" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Émission de capitaux propres autre que par exercice de bons de souscription</link:label>
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    <link:label id="lab_ifrs-full_GeneralAndAdministrativeExpense_f96eb0f8-7d25-43bc-b389-ea305962defa_negatedLabel_fr" xlink:label="lab_ifrs-full_GeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Frais généraux et administratifs</link:label>
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    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsDansLeCadreDeConventionDeCapitauxPropres_label_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsDansLeCadreDeConventionDeCapitauxPropres" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Augmentation Diminution du nombre d'actions émises grâce à l'exercice de bons de souscription d'actions dans le cadre de convention de capitaux propres.</link:label>
    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsDansLeCadreDeConventionDeCapitauxPropres_documentation_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsDansLeCadreDeConventionDeCapitauxPropres" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Augmentation Diminution du nombre d'actions émises grâce à l'exercice de bons de souscription d'actions dans le cadre de convention de capitaux propres.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsDansLeCadreDeConventionDeCapitauxPropres" xlink:href="abvx-2023-12-31.xsd#abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsDansLeCadreDeConventionDeCapitauxPropres"/>
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    <link:label id="lab_ifrs-full_NumberOfSharesIssued_7ebc1820-43f8-4717-ae23-370611199ac0_periodStartLabel_fr" xlink:label="lab_ifrs-full_NumberOfSharesIssued" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="fr">Number of shares issued</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueAndOperatingIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_RevenueAndOperatingIncome"/>
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    <link:label id="lab_abvx_AvancesAuxHopitaux_label_fr" xlink:label="lab_abvx_AvancesAuxHopitaux" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Avances aux hôpitaux</link:label>
    <link:label id="lab_abvx_AvancesAuxHopitaux_documentation_fr" xlink:label="lab_abvx_AvancesAuxHopitaux" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Avances aux hôpitaux</link:label>
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    <link:label id="lab_ifrs-full_IncomeTaxExpenseContinuingOperations_1c24ae4f-8e30-4e1f-b18c-7eae19579243_negatedLabel_fr" xlink:label="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Tax expense (income)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations"/>
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    <link:label id="lab_abvx_RemboursementDesDepots_label_fr" xlink:label="lab_abvx_RemboursementDesDepots" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Remboursement des dépôts</link:label>
    <link:label id="lab_abvx_RemboursementDesDepots_documentation_fr" xlink:label="lab_abvx_RemboursementDesDepots" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Remboursement des dépôts</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_RemboursementDesDepots" xlink:href="abvx-2023-12-31.xsd#abvx_RemboursementDesDepots"/>
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    <link:label id="lab_ifrs-full_PaymentsForShareIssueCosts_ca3a79f5-46f7-4aa4-ab9a-21c810adfec8_negatedLabel_fr" xlink:label="lab_ifrs-full_PaymentsForShareIssueCosts" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Paiements au titre des coûts d’émission d’actions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PaymentsForShareIssueCosts" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_PaymentsForShareIssueCosts"/>
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    <link:label id="lab_ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities_5d4d4c6c-7707-468f-8e3d-3a52a5140895_negatedLabel_fr" xlink:label="lab_ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Achat d’autres actifs à long terme, classé dans les activités d’investissement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_PurchaseOfOtherLongtermAssetsClassifiedAsInvestingActivities"/>
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    <link:label id="lab_abvx_AjustementsPourRemboursementDesAvancesConditionnellesCovid19_label_fr" xlink:label="lab_abvx_AjustementsPourRemboursementDesAvancesConditionnellesCovid19" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Ajustements pour remboursement des avances conditionnelles Covid 19</link:label>
    <link:label id="lab_abvx_AjustementsPourRemboursementDesAvancesConditionnellesCovid19_documentation_fr" xlink:label="lab_abvx_AjustementsPourRemboursementDesAvancesConditionnellesCovid19" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Ajustements pour remboursement des avances conditionnelles Covid 19</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_AjustementsPourRemboursementDesAvancesConditionnellesCovid19" xlink:href="abvx-2023-12-31.xsd#abvx_AjustementsPourRemboursementDesAvancesConditionnellesCovid19"/>
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    <link:label id="lab_abvx_RemboursementDesAvancesConditionnelles_a39f8c83-a944-4394-a28f-e2fa58dcd009_negatedLabel_fr" xlink:label="lab_abvx_RemboursementDesAvancesConditionnelles" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Remboursement des avances conditionnelles</link:label>
    <link:label id="lab_abvx_RemboursementDesAvancesConditionnelles_label_fr" xlink:label="lab_abvx_RemboursementDesAvancesConditionnelles" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Remboursement des avances conditionnelles</link:label>
    <link:label id="lab_abvx_RemboursementDesAvancesConditionnelles_documentation_fr" xlink:label="lab_abvx_RemboursementDesAvancesConditionnelles" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Remboursement des avances conditionnelles</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_RemboursementDesAvancesConditionnelles" xlink:href="abvx-2023-12-31.xsd#abvx_RemboursementDesAvancesConditionnelles"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_RemboursementDesAvancesConditionnelles" xlink:to="lab_abvx_RemboursementDesAvancesConditionnelles" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_AjustementsPourGainNetSurVenteDactionsPropres_label_fr" xlink:label="lab_abvx_AjustementsPourGainNetSurVenteDactionsPropres" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Ajustements pour gain net sur vente d’actions propres</link:label>
    <link:label id="lab_abvx_AjustementsPourGainNetSurVenteDactionsPropres_documentation_fr" xlink:label="lab_abvx_AjustementsPourGainNetSurVenteDactionsPropres" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Ajustements pour gain net sur vente d’actions propres</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_AjustementsPourGainNetSurVenteDactionsPropres" xlink:href="abvx-2023-12-31.xsd#abvx_AjustementsPourGainNetSurVenteDactionsPropres"/>
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    <link:label id="lab_ifrs-full_ProfitLossAttributableToOwnersOfParent_d3c9cc59-7c6c-4108-97bc-4e70b1016b9d_totalLabel_fr" xlink:label="lab_ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Total Résultat net de la période</link:label>
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    <link:label id="lab_abvx_IssueOfConvertibleNotes_label_fr" xlink:label="lab_abvx_IssueOfConvertibleNotes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Emission d'obligations convertibles</link:label>
    <link:label id="lab_abvx_IssueOfConvertibleNotes_documentation_fr" xlink:label="lab_abvx_IssueOfConvertibleNotes" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">IssueOfConvertibleNotes</link:label>
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    <link:label id="lab_abvx_AjustementsPourAutresRevenusFinanciers_7512c767-c211-4154-9197-a7e124cd0390_negatedLabel_fr" xlink:label="lab_abvx_AjustementsPourAutresRevenusFinanciers" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Ajustements pour autres revenus financiers</link:label>
    <link:label id="lab_abvx_AjustementsPourAutresRevenusFinanciers_label_fr" xlink:label="lab_abvx_AjustementsPourAutresRevenusFinanciers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Ajustements pour autres revenus financiers</link:label>
    <link:label id="lab_abvx_AjustementsPourAutresRevenusFinanciers_documentation_fr" xlink:label="lab_abvx_AjustementsPourAutresRevenusFinanciers" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Ajustements pour autres revenus financiers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_AjustementsPourAutresRevenusFinanciers" xlink:href="abvx-2023-12-31.xsd#abvx_AjustementsPourAutresRevenusFinanciers"/>
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