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Appl. Sci. 2018, 8(7), 1206; https://doi.org/10.3390/app8071206

Learning Eligibility in Cancer Clinical Trials Using Deep Neural Networks

Pattern Recognition and Artificial Intelligence Group (GRFIA), Department of Software and Computing Systems, University Institute for Computing Research, University of Alicante, E-03690 Alicante, Spain
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Received: 2 July 2018 / Revised: 19 July 2018 / Accepted: 19 July 2018 / Published: 23 July 2018
(This article belongs to the Special Issue Deep Learning and Big Data in Healthcare)
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Abstract

Interventional cancer clinical trials are generally too restrictive, and some patients are often excluded on the basis of comorbidity, past or concomitant treatments, or the fact that they are over a certain age. The efficacy and safety of new treatments for patients with these characteristics are, therefore, not defined. In this work, we built a model to automatically predict whether short clinical statements were considered inclusion or exclusion criteria. We used protocols from cancer clinical trials that were available in public registries from the last 18 years to train word-embeddings, and we constructed a dataset of 6M short free-texts labeled as eligible or not eligible. A text classifier was trained using deep neural networks, with pre-trained word-embeddings as inputs, to predict whether or not short free-text statements describing clinical information were considered eligible. We additionally analyzed the semantic reasoning of the word-embedding representations obtained and were able to identify equivalent treatments for a type of tumor analogous with the drugs used to treat other tumors. We show that representation learning using deep neural networks can be successfully leveraged to extract the medical knowledge from clinical trial protocols for potentially assisting practitioners when prescribing treatments. View Full-Text
Keywords: clinical trials; clinical decision support system; natural language processing; word embeddings; deep neural networks clinical trials; clinical decision support system; natural language processing; word embeddings; deep neural networks
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Bustos, A.; Pertusa, A. Learning Eligibility in Cancer Clinical Trials Using Deep Neural Networks. Appl. Sci. 2018, 8, 1206.

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