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    <link:label id="lab_abvx_EmissionDeBonsDeSouscriptionDactions_documentation_fr" xlink:label="lab_abvx_EmissionDeBonsDeSouscriptionDactions" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Emission de bons de souscription d'actions</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_AjustementsPourRemboursementDesAvancesConditionnellesBpifrance_documentation_fr" xlink:label="lab_abvx_AjustementsPourRemboursementDesAvancesConditionnellesBpifrance" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Ajustements pour remboursement des avances conditionnelles Bpifrance</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_label_fr" xlink:label="lab_abvx_RepaymentsOfConvertibleLoanNotes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Remboursements d'obligations convertibles</link:label>
    <link:label id="lab_abvx_RepaymentsOfConvertibleLoanNotes_documentation_fr" xlink:label="lab_abvx_RepaymentsOfConvertibleLoanNotes" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">RepaymentsOfConvertibleLoanNotes</link:label>
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    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities_019b36d3-2ad4-761f-8e44-2688c683e63e_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/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>
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    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALemissionDactionsGratuites_label_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALemissionDactionsGratuites" 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'émission d'actions gratuites</link:label>
    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALemissionDactionsGratuites_documentation_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALemissionDactionsGratuites" 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'émission d'actions gratuites</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALemissionDactionsGratuites" xlink:href="abvx-2025-12-31.xsd#abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALemissionDactionsGratuites"/>
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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:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_AjustementsAuTitreDeLaDesactualisationLieAuxAvancesConditionnelles" xlink:to="lab_abvx_AjustementsAuTitreDeLaDesactualisationLieAuxAvancesConditionnelles" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities_019b36d3-2ad4-7015-a909-e38fdcec1c55_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>
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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:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_ProduitsNetDesObligationsConvertibles" xlink:to="lab_abvx_ProduitsNetDesObligationsConvertibles" xlink:type="arc" order="1"/>
    <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-2025-12-31.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_019b36d3-2ad4-76d4-881c-3143242a20e2_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-2025-12-31.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_ConversionDesOCABSAKreosClaret_label_fr" xlink:label="lab_abvx_ConversionDesOCABSAKreosClaret" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Conversion des OCABSA Kreos Claret</link:label>
    <link:label id="lab_abvx_ConversionDesOCABSAKreosClaret_documentation_fr" xlink:label="lab_abvx_ConversionDesOCABSAKreosClaret" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Conversion des OCABSA Kreos Claret</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_ConversionDesOCABSAKreosClaret" xlink:href="abvx-2025-12-31.xsd#abvx_ConversionDesOCABSAKreosClaret"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_ConversionDesOCABSAKreosClaret" xlink:to="lab_abvx_ConversionDesOCABSAKreosClaret" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_AvancesAuxCRO_019b36d3-2ad4-7f0c-ad57-1bd6026685d6_negatedLabel_fr" xlink:label="lab_abvx_AvancesAuxCRO" 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: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-2025-12-31.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_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 Dactions Emises Grace A Lexercice De Bons De Souscription Dactions Autres Que Kreos</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsAutresQueKreos" xlink:href="abvx-2025-12-31.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_abvx_ExerciceDeBonsDeSouscriptionDactionsKreosClaret_label_fr" xlink:label="lab_abvx_ExerciceDeBonsDeSouscriptionDactionsKreosClaret" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Exercice de bons de souscription d'actions Kreos/Claret</link:label>
    <link:label id="lab_abvx_ExerciceDeBonsDeSouscriptionDactionsKreosClaret_documentation_fr" xlink:label="lab_abvx_ExerciceDeBonsDeSouscriptionDactionsKreosClaret" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Exercices De Bons De Souscription Dactions Kreos / Claret</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_ExerciceDeBonsDeSouscriptionDactionsKreosClaret" xlink:href="abvx-2025-12-31.xsd#abvx_ExerciceDeBonsDeSouscriptionDactionsKreosClaret"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_ExerciceDeBonsDeSouscriptionDactionsKreosClaret" xlink:to="lab_abvx_ExerciceDeBonsDeSouscriptionDactionsKreosClaret" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_ConversionDeLempruntObligataireHeights_label_fr" xlink:label="lab_abvx_ConversionDeLempruntObligataireHeights" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Conversion de l'emprunt obligataire Heights</link:label>
    <link:label id="lab_abvx_ConversionDeLempruntObligataireHeights_documentation_fr" xlink:label="lab_abvx_ConversionDeLempruntObligataireHeights" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Conversion de l'emprunt obligataire Heights</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_ConversionDeLempruntObligataireHeights" xlink:href="abvx-2025-12-31.xsd#abvx_ConversionDeLempruntObligataireHeights"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_ConversionDeLempruntObligataireHeights" xlink:to="lab_abvx_ConversionDeLempruntObligataireHeights" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities_019b36d3-2ad4-765d-b30f-e02064a2e675_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/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_RemboursementsDobligationsNonConvertibles_label_fr" xlink:label="lab_abvx_RemboursementsDobligationsNonConvertibles" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Remboursements d'obligations non convertibles</link:label>
    <link:label id="lab_abvx_RemboursementsDobligationsNonConvertibles_documentation_fr" xlink:label="lab_abvx_RemboursementsDobligationsNonConvertibles" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Remboursements d'obligations non convertibles</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_RemboursementsDobligationsNonConvertibles" xlink:href="abvx-2025-12-31.xsd#abvx_RemboursementsDobligationsNonConvertibles"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_RemboursementsDobligationsNonConvertibles" xlink:to="lab_abvx_RemboursementsDobligationsNonConvertibles" 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-2025-12-31.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_RevenueAndOperatingIncome_019b36d3-2ad4-7e91-927a-94d1451c0476_totalLabel_fr" xlink:label="lab_ifrs-full_RevenueAndOperatingIncome" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Total des produits opérationnels</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_RevenueAndOperatingIncome" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_RevenueAndOperatingIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_RevenueAndOperatingIncome" xlink:to="lab_ifrs-full_RevenueAndOperatingIncome" 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-2025-12-31.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_ifrs-full_OperatingExpense_019b36d3-2ad4-78de-bb0e-2da08e7fe28b_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/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_OperatingExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OperatingExpense" xlink:to="lab_ifrs-full_OperatingExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_EmissionDactionsGratuites_label_fr" xlink:label="lab_abvx_EmissionDactionsGratuites" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Emission d'actions gratuites</link:label>
    <link:label id="lab_abvx_EmissionDactionsGratuites_documentation_fr" xlink:label="lab_abvx_EmissionDactionsGratuites" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Emission d'actions gratuites</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_EmissionDactionsGratuites" xlink:href="abvx-2025-12-31.xsd#abvx_EmissionDactionsGratuites"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_EmissionDactionsGratuites" xlink:to="lab_abvx_EmissionDactionsGratuites" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_NumberOfSharesIssued_019b36d3-2ad4-7969-ba80-116c68bd7708_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>
    <link:label id="lab_ifrs-full_NumberOfSharesIssued_019b36d3-2ad4-79e1-a2c8-9dd11c01430c_periodEndLabel_fr" xlink:label="lab_ifrs-full_NumberOfSharesIssued" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="fr">Number of shares issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_NumberOfSharesIssued" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_NumberOfSharesIssued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_NumberOfSharesIssued" xlink:to="lab_ifrs-full_NumberOfSharesIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinanceIncomeCost_019b36d3-2ad4-7a87-89c9-9f4f0bfe1289_totalLabel_fr" xlink:label="lab_ifrs-full_FinanceIncomeCost" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Total Résultat financier</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_FinanceIncomeCost" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_FinanceIncomeCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_FinanceIncomeCost" xlink:to="lab_ifrs-full_FinanceIncomeCost" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeTaxExpenseContinuingOperations_019b36d3-2ad4-76cc-acd8-332ec31dd3e7_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/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="lab_ifrs-full_IncomeTaxExpenseContinuingOperations" 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-2025-12-31.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_ifrs-full_IncreaseDecreaseInCashAndCashEquivalents_019b36d3-2ad4-79d4-b425-dce461dd0fd4_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/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.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"/>
    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsKreosClaret_label_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsKreosClaret" 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 Claret</link:label>
    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsKreosClaret_documentation_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsKreosClaret" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Augmentation Diminution Du Nombre Dactions Emises Grace A Lexercice De Bons De Souscription Dactions Kreos Claret</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsKreosClaret" xlink:href="abvx-2025-12-31.xsd#abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsKreosClaret"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsKreosClaret" xlink:to="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactionsKreosClaret" 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 Dactions Emises Grace A Lexercice De Bons De Souscription Dactions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALexerciceDeBonsDeSouscriptionDactions" xlink:href="abvx-2025-12-31.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_ifrs-full_IncreaseDecreaseInWorkingCapital_019b36d3-2ad4-7f50-90af-adafb6701527_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/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDeLempruntObligataireHeights_label_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDeLempruntObligataireHeights" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Augmentation diminution du nombre d'actions émises grâce à la conversion de l'emprunt obligataire Heights</link:label>
    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDeLempruntObligataireHeights_documentation_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDeLempruntObligataireHeights" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Augmentation Diminution Du Nombre D'actions Emises Grace A la Conversion de l'emprunt obligataire Heights</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDeLempruntObligataireHeights" xlink:href="abvx-2025-12-31.xsd#abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDeLempruntObligataireHeights"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDeLempruntObligataireHeights" xlink:to="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDeLempruntObligataireHeights" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_ReevaluationDesEquivalentsDeTresorerieEvaluesALaJusteValeur_label_fr" xlink:label="lab_abvx_ReevaluationDesEquivalentsDeTresorerieEvaluesALaJusteValeur" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Réévaluation des équivalents de trésorerie évalués à la juste valeur</link:label>
    <link:label id="lab_abvx_ReevaluationDesEquivalentsDeTresorerieEvaluesALaJusteValeur_documentation_fr" xlink:label="lab_abvx_ReevaluationDesEquivalentsDeTresorerieEvaluesALaJusteValeur" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Réévaluation des équivalents de trésorerie évalués à la juste valeur</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_ReevaluationDesEquivalentsDeTresorerieEvaluesALaJusteValeur" xlink:href="abvx-2025-12-31.xsd#abvx_ReevaluationDesEquivalentsDeTresorerieEvaluesALaJusteValeur"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_ReevaluationDesEquivalentsDeTresorerieEvaluesALaJusteValeur" xlink:to="lab_abvx_ReevaluationDesEquivalentsDeTresorerieEvaluesALaJusteValeur" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_ProduitNetDesObligationsNonConvertibles_label_fr" xlink:label="lab_abvx_ProduitNetDesObligationsNonConvertibles" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Produit Net Des Obligations Non Convertibles</link:label>
    <link:label id="lab_abvx_ProduitNetDesObligationsNonConvertibles_documentation_fr" xlink:label="lab_abvx_ProduitNetDesObligationsNonConvertibles" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Produit Net Des Obligations Non Convertibles</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_ProduitNetDesObligationsNonConvertibles" xlink:href="abvx-2025-12-31.xsd#abvx_ProduitNetDesObligationsNonConvertibles"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_ProduitNetDesObligationsNonConvertibles" xlink:to="lab_abvx_ProduitNetDesObligationsNonConvertibles" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities_019b36d3-2ad4-71f5-b3d1-37c24a958d3b_negatedLabel_fr" xlink:label="lab_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Achat d’immobilisations incorporelles, classé dans les activités d’investissement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:to="lab_ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" 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-2025-12-31.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_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>
    <link:label id="lab_abvx_EmissionDeCapitauxPropresAutreQueParExerciceDeBonsDeSouscription_documentation_fr" xlink:label="lab_abvx_EmissionDeCapitauxPropresAutreQueParExerciceDeBonsDeSouscription" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Émission de capitaux propres autre que par exercice de bons de souscription</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_EmissionDeCapitauxPropresAutreQueParExerciceDeBonsDeSouscription" xlink:href="abvx-2025-12-31.xsd#abvx_EmissionDeCapitauxPropresAutreQueParExerciceDeBonsDeSouscription"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_EmissionDeCapitauxPropresAutreQueParExerciceDeBonsDeSouscription" xlink:to="lab_abvx_EmissionDeCapitauxPropresAutreQueParExerciceDeBonsDeSouscription" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_ResearchAndDevelopmentExpense_019b36d3-2ad4-72fe-a5d0-fbda1781cda6_negatedLabel_fr" xlink:label="lab_ifrs-full_ResearchAndDevelopmentExpense" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Dépenses de recherche et développement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_ResearchAndDevelopmentExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_ResearchAndDevelopmentExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_ResearchAndDevelopmentExpense" xlink:to="lab_ifrs-full_ResearchAndDevelopmentExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_DettesFiscalesEtSociales_label_fr" xlink:label="lab_abvx_DettesFiscalesEtSociales" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Dettes fiscales et sociales</link:label>
    <link:label id="lab_abvx_DettesFiscalesEtSociales_documentation_fr" xlink:label="lab_abvx_DettesFiscalesEtSociales" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Dettes fiscales et sociales</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_DettesFiscalesEtSociales" xlink:href="abvx-2025-12-31.xsd#abvx_DettesFiscalesEtSociales"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_DettesFiscalesEtSociales" xlink:to="lab_abvx_DettesFiscalesEtSociales" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PaymentsForShareIssueCosts_019b36d3-2ad4-7d4e-91cc-45a7b67cbe23_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/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_PaymentsForShareIssueCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_PaymentsForShareIssueCosts" xlink:to="lab_ifrs-full_PaymentsForShareIssueCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_GeneralAndAdministrativeExpense_019b36d3-2ad4-7683-8975-ee2b0bb1d503_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>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_GeneralAndAdministrativeExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.xsd#ifrs-full_GeneralAndAdministrativeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_GeneralAndAdministrativeExpense" xlink:to="lab_ifrs-full_GeneralAndAdministrativeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_019b36d3-2ad4-752f-900a-ab7e4d4c3d54_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/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.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_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-2025-12-31.xsd#abvx_RemboursementDesDepots"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_RemboursementDesDepots" xlink:to="lab_abvx_RemboursementDesDepots" xlink:type="arc" order="1"/>
    <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-2025-12-31.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-2025-12-31.xsd#abvx_AjustementsPourGainNetSurVenteDactionsPropres"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_AjustementsPourGainNetSurVenteDactionsPropres" xlink:to="lab_abvx_AjustementsPourGainNetSurVenteDactionsPropres" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDesOCABSAKreosClaret_label_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDesOCABSAKreosClaret" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Augmentation diminution du nombre d'actions émises grâce à la conversion des OCABSA Kreos Claret</link:label>
    <link:label id="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDesOCABSAKreosClaret_documentation_fr" xlink:label="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDesOCABSAKreosClaret" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Augmentation Diminution Du Nombre D'actions Emises Grace A la Conversion des OCABSA Kreos Claret</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDesOCABSAKreosClaret" xlink:href="abvx-2025-12-31.xsd#abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDesOCABSAKreosClaret"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDesOCABSAKreosClaret" xlink:to="lab_abvx_AugmentationDiminutionDuNombreDactionsEmisesGraceALaConversionDesOCABSAKreosClaret" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_InterestPaidClassifiedAsFinancingActivities_019b36d3-2ad4-7f21-9f21-04064676e9ca_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/2024-03-27/full_ifrs/full_ifrs-cor_2024-03-27.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_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>
    <link:loc xlink:type="locator" xlink:label="loc_abvx_IssueOfConvertibleNotes" xlink:href="abvx-2025-12-31.xsd#abvx_IssueOfConvertibleNotes"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_abvx_IssueOfConvertibleNotes" xlink:to="lab_abvx_IssueOfConvertibleNotes" xlink:type="arc" order="1"/>
    <link:label id="lab_abvx_AjustementsPourAutresRevenusFinanciers_019b36d3-2ad4-72b8-9c03-03eec4cc8885_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-2025-12-31.xsd#abvx_AjustementsPourAutresRevenusFinanciers"/>
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