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      <dc:title>Machine learning and natural language processing (NLP) approach to predict early progression to first-line treatment in real-world hormone receptor-positive (HRþ)/HER2-negative advanced breast cancer patients.</dc:title>
      <dc:creator>Ribelles, Nuria</dc:creator>
      <dc:creator>Jerez-Aragonés, José Manuel</dc:creator>
      <dc:creator>Rodríguez-Brazzarola, Pablo</dc:creator>
      <dc:creator>Jiménez-Rodríguez, Begoña</dc:creator>
      <dc:creator>Díaz-Redondo, Tamara</dc:creator>
      <dc:creator>Mesa, Héctor</dc:creator>
      <dc:creator>Márquez, Antonia</dc:creator>
      <dc:creator>Sánchez-Muñoz, Alfonso</dc:creator>
      <dc:creator>Pajares, Bella</dc:creator>
      <dc:creator>Carabantes, Francisco</dc:creator>
      <dc:creator>Bermejo-Pérez, María José</dc:creator>
      <dc:creator>Villar, Ester</dc:creator>
      <dc:creator>Domínguez-Recio, María Emilia</dc:creator>
      <dc:creator>Saez-Lara, Enrique</dc:creator>
      <dc:creator>Gálvez Carvajal, Laura</dc:creator>
      <dc:creator>Godoy-Ortiz, Ana</dc:creator>
      <dc:creator>Franco, Leónardo</dc:creator>
      <dc:creator>Ruiz-Medina, Sofía</dc:creator>
      <dc:creator>López, Irene</dc:creator>
      <dc:creator>Alba-Conejo, Emilio</dc:creator>
      <dc:subject>Mamas - Cáncer</dc:subject>
      <dc:subject>Proceso en lenguaje natural (Informática)</dc:subject>
      <dc:description>Este artículo ha sido publicado en la revista European Journal of Cancer. &#xd;
Esta versión tiene Licencia Creative Commons CC-BY-NC-ND</dc:description>
      <dc:description>Background: CDK4/6 inhibitors plus endocrine therapies are the current standard&#xd;
of care in the first-line treatment of HRþ/HER2-negative metastatic breast cancer, but there&#xd;
are no well-established clinical or molecular predictive factors for patient response. In the era&#xd;
of personalised oncology, new approaches for developing predictive models of response are&#xd;
needed.&#xd;
Materials and methods: Data derived from the electronic health records (EHRs) of real-world&#xd;
patients with HRþ/HER2-negative advanced breast cancer were used to develop predictive&#xd;
models for early and late progression to first-line treatment. Two machine learning approaches&#xd;
were used: a classic approach using a data set of manually extracted features from reviewed&#xd;
(EHR) patients, and a second approach using natural language processing (NLP) of freetext&#xd;
clinical notes recorded during medical visits.&#xd;
Results: Of the 610 patients included, there were 473 (77.5%) progressions to first-line treatment,&#xd;
of which 126 (20.6%) occurred within the first 6 months. There were 152 patients&#xd;
(24.9%) who showed no disease progression before 28 months from the onset of first-line treatment.&#xd;
The best predictive model for early progression using the manually extracted dataset&#xd;
achieved an area under the curve (AUC) of 0.734 (95% CI 0.687e0.782). Using the NLP&#xd;
free-text processing approach, the best model obtained an AUC of 0.758 (95% CI 0.714&#xd;
e0.800). The best model to predict long responders using manually extracted data obtained&#xd;
an AUC of 0.669 (95% CI 0.608e0.730). With NLP free-text processing, the best model attained&#xd;
an AUC of 0.752 (95% CI 0.705e0.799).&#xd;
Conclusions: Using machine learning methods, we developed predictive models for early and&#xd;
late progression to first-line treatment of HRþ/HER2-negative metastatic breast cancer, also&#xd;
finding that NLP-based machine learning models are slightly better than predictive models&#xd;
based on manually obtained data.</dc:description>
      <dc:date>2024-05-10T08:13:21Z</dc:date>
      <dc:date>2024-05-10T08:13:21Z</dc:date>
      <dc:date>2021</dc:date>
      <dc:type>journal article</dc:type>
      <dc:identifier>Ribelles N, Jerez JM, Rodriguez-Brazzarola P, Jimenez B, Diaz-Redondo T, Mesa H, Marquez A, Sanchez-Muñoz A, Pajares B, Carabantes F, Bermejo MJ, Villar E, Dominguez-Recio ME, Saez E, Galvez L, Godoy A, Franco L, Ruiz-Medina S, Lopez I, Alba E. Machine learning and natural language processing (NLP) approach to predict early progression to first-line treatment in real-world hormone receptor-positive (HR+)/HER2-negative advanced breast cancer patients. Eur J Cancer. 2021 Feb;144:224-231. doi: 10.1016/j.ejca.2020.11.030. Epub 2020 Dec 26. PMID: 33373867.</dc:identifier>
      <dc:identifier>https://hdl.handle.net/10630/31244</dc:identifier>
      <dc:identifier>10.1016/j.ejca.2020.11.030</dc:identifier>
      <dc:language>eng</dc:language>
      <dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
      <dc:rights>open access</dc:rights>
      <dc:rights>Attribution-NonCommercial-NoDerivatives 4.0 Internacional</dc:rights>
      <dc:publisher>Elsevier</dc:publisher>
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