Maintained complete response to talazoparib in a BRCA-2 mutated metastatic luminal breast cancer: case report and review of literature

PARP inhibitors are progressively becoming a part of our therapeutic arsenal against BRCA-defective tumors, because of their capacity to induce synthetic lethality in cells with a deficiency in the homologous recombination repair system. Olaparib and talazoparib have been approved for metastatic bre...

Full description

Bibliographic Details
Main Authors: Víctor Albarrán, Jesús Chamorro, Javier Pozas, María San Román, Diana Isabel Rosero, Cristina Saavedra, María Gion, Alfonso Cortés, Elena Escalera, Eva Guerra, Elena López Miranda, María Fernández Abad, Noelia Martínez Jañez
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-05-01
Series:Frontiers in Oncology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fonc.2023.1158981/full
_version_ 1797833078331146240
author Víctor Albarrán
Jesús Chamorro
Javier Pozas
María San Román
Diana Isabel Rosero
Cristina Saavedra
María Gion
Alfonso Cortés
Elena Escalera
Eva Guerra
Elena López Miranda
María Fernández Abad
Noelia Martínez Jañez
author_facet Víctor Albarrán
Jesús Chamorro
Javier Pozas
María San Román
Diana Isabel Rosero
Cristina Saavedra
María Gion
Alfonso Cortés
Elena Escalera
Eva Guerra
Elena López Miranda
María Fernández Abad
Noelia Martínez Jañez
author_sort Víctor Albarrán
collection DOAJ
description PARP inhibitors are progressively becoming a part of our therapeutic arsenal against BRCA-defective tumors, because of their capacity to induce synthetic lethality in cells with a deficiency in the homologous recombination repair system. Olaparib and talazoparib have been approved for metastatic breast cancer in carriers of germline BRCA mutations, which are found in approximately 6% of patients with breast cancer. We report the case of a patient with metastatic breast cancer, carrier of a germline mutation in BRCA2, with a complete response to first-line treatment with talazoparib, maintained after 6 years. To the best of our knowledge, this is the longest response reported with a PARP inhibitor in a BRCA-mutated tumor. We have made a review of literature, regarding the rationale for PARP inhibitors in carriers of BRCA mutations and their clinical relevance in the management of advanced breast cancer, as well as their emerging role in early stage disease, alone and in combination with other systemic therapies.
first_indexed 2024-04-09T14:17:57Z
format Article
id doaj.art-e86c0ec339974c8c8252d1bb6e51b17f
institution Directory Open Access Journal
issn 2234-943X
language English
last_indexed 2024-04-09T14:17:57Z
publishDate 2023-05-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Oncology
spelling doaj.art-e86c0ec339974c8c8252d1bb6e51b17f2023-05-05T05:58:29ZengFrontiers Media S.A.Frontiers in Oncology2234-943X2023-05-011310.3389/fonc.2023.11589811158981Maintained complete response to talazoparib in a BRCA-2 mutated metastatic luminal breast cancer: case report and review of literatureVíctor AlbarránJesús ChamorroJavier PozasMaría San RománDiana Isabel RoseroCristina SaavedraMaría GionAlfonso CortésElena EscaleraEva GuerraElena López MirandaMaría Fernández AbadNoelia Martínez JañezPARP inhibitors are progressively becoming a part of our therapeutic arsenal against BRCA-defective tumors, because of their capacity to induce synthetic lethality in cells with a deficiency in the homologous recombination repair system. Olaparib and talazoparib have been approved for metastatic breast cancer in carriers of germline BRCA mutations, which are found in approximately 6% of patients with breast cancer. We report the case of a patient with metastatic breast cancer, carrier of a germline mutation in BRCA2, with a complete response to first-line treatment with talazoparib, maintained after 6 years. To the best of our knowledge, this is the longest response reported with a PARP inhibitor in a BRCA-mutated tumor. We have made a review of literature, regarding the rationale for PARP inhibitors in carriers of BRCA mutations and their clinical relevance in the management of advanced breast cancer, as well as their emerging role in early stage disease, alone and in combination with other systemic therapies.https://www.frontiersin.org/articles/10.3389/fonc.2023.1158981/fullbreast cancerBRCAgermlinePARP inhibitorsolaparibtalazoparib
spellingShingle Víctor Albarrán
Jesús Chamorro
Javier Pozas
María San Román
Diana Isabel Rosero
Cristina Saavedra
María Gion
Alfonso Cortés
Elena Escalera
Eva Guerra
Elena López Miranda
María Fernández Abad
Noelia Martínez Jañez
Maintained complete response to talazoparib in a BRCA-2 mutated metastatic luminal breast cancer: case report and review of literature
Frontiers in Oncology
breast cancer
BRCA
germline
PARP inhibitors
olaparib
talazoparib
title Maintained complete response to talazoparib in a BRCA-2 mutated metastatic luminal breast cancer: case report and review of literature
title_full Maintained complete response to talazoparib in a BRCA-2 mutated metastatic luminal breast cancer: case report and review of literature
title_fullStr Maintained complete response to talazoparib in a BRCA-2 mutated metastatic luminal breast cancer: case report and review of literature
title_full_unstemmed Maintained complete response to talazoparib in a BRCA-2 mutated metastatic luminal breast cancer: case report and review of literature
title_short Maintained complete response to talazoparib in a BRCA-2 mutated metastatic luminal breast cancer: case report and review of literature
title_sort maintained complete response to talazoparib in a brca 2 mutated metastatic luminal breast cancer case report and review of literature
topic breast cancer
BRCA
germline
PARP inhibitors
olaparib
talazoparib
url https://www.frontiersin.org/articles/10.3389/fonc.2023.1158981/full
work_keys_str_mv AT victoralbarran maintainedcompleteresponsetotalazoparibinabrca2mutatedmetastaticluminalbreastcancercasereportandreviewofliterature
AT jesuschamorro maintainedcompleteresponsetotalazoparibinabrca2mutatedmetastaticluminalbreastcancercasereportandreviewofliterature
AT javierpozas maintainedcompleteresponsetotalazoparibinabrca2mutatedmetastaticluminalbreastcancercasereportandreviewofliterature
AT mariasanroman maintainedcompleteresponsetotalazoparibinabrca2mutatedmetastaticluminalbreastcancercasereportandreviewofliterature
AT dianaisabelrosero maintainedcompleteresponsetotalazoparibinabrca2mutatedmetastaticluminalbreastcancercasereportandreviewofliterature
AT cristinasaavedra maintainedcompleteresponsetotalazoparibinabrca2mutatedmetastaticluminalbreastcancercasereportandreviewofliterature
AT mariagion maintainedcompleteresponsetotalazoparibinabrca2mutatedmetastaticluminalbreastcancercasereportandreviewofliterature
AT alfonsocortes maintainedcompleteresponsetotalazoparibinabrca2mutatedmetastaticluminalbreastcancercasereportandreviewofliterature
AT elenaescalera maintainedcompleteresponsetotalazoparibinabrca2mutatedmetastaticluminalbreastcancercasereportandreviewofliterature
AT evaguerra maintainedcompleteresponsetotalazoparibinabrca2mutatedmetastaticluminalbreastcancercasereportandreviewofliterature
AT elenalopezmiranda maintainedcompleteresponsetotalazoparibinabrca2mutatedmetastaticluminalbreastcancercasereportandreviewofliterature
AT mariafernandezabad maintainedcompleteresponsetotalazoparibinabrca2mutatedmetastaticluminalbreastcancercasereportandreviewofliterature
AT noeliamartinezjanez maintainedcompleteresponsetotalazoparibinabrca2mutatedmetastaticluminalbreastcancercasereportandreviewofliterature