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Artificial Intelligence Estimates the Importance of Baseline Factors in Predicting Response to Anti-PD1 in Metastatic Melanoma.
Indini, Alice; Di Guardo, Lorenza; Cimminiello, Carolina; De Braud, Filippo; Del Vecchio, Michele.
Afiliación
  • Indini A; Department of Medical Oncology and Hematology, Melanoma Medical Oncology Unit.
  • Di Guardo L; Department of Medical Oncology and Hematology, Melanoma Medical Oncology Unit.
  • Cimminiello C; Department of Medical Oncology and Hematology, Melanoma Medical Oncology Unit.
  • De Braud F; Department of Medical Oncology and Hematology.
  • Del Vecchio M; University of Milan, National Cancer Institute Milan, Italy.
Am J Clin Oncol ; 42(8): 643-648, 2019 08.
Article en En | MEDLINE | ID: mdl-31261257
ABSTRACT

OBJECTIVE:

Prognosis of patients with metastatic melanoma has dramatically improved over recent years because of the advent of antibodies targeting programmed cell death protein-1 (PD1). However, the response rate is ~40% and baseline biomarkers for the outcome are yet to be identified. Here, we aimed to determine whether artificial intelligence might be useful in weighting the importance of baseline variables in predicting response to anti-PD1.

METHODS:

This is a retrospective study evaluating 173 patients receiving anti-PD1 for melanoma. Using an artificial neuronal network analysis, the importance of different variables was estimated and used in predicting response rate and overall survival.

RESULTS:

After a mean follow-up of 12.8 (±11.9) months, disease control rate was 51%. Using artificial neuronal network, we observed that 3 factors predicted response to anti-PD1 neutrophil-to-lymphocyte ratio (NLR) (importance 0.195), presence of ≥3 metastatic sites (importance 0.156), and baseline lactate dehydrogenase (LDH) > upper limit of normal (importance 0.154). Looking at connections between different covariates and overall survival, the most important variables influencing survival were presence of ≥3 metastatic sites (importance 0.202), age (importance 0.189), NLR (importance 0.164), site of primary melanoma (cutaneous vs. noncutaneous) (importance 0.112), and LDH > upper limit of normal (importance 0.108).

CONCLUSIONS:

NLR, presence of ≥3 metastatic sites, LDH levels, age, and site of primary melanoma are important baseline factors influencing response and survival. Further studies are warranted to estimate a model to drive the choice to administered anti-PD1 treatments in patients with melanoma.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Neoplasias Cutáneas / Neoplasias de la Úvea / Neoplasias Primarias Desconocidas / Redes Neurales de la Computación / Receptor de Muerte Celular Programada 1 / Melanoma / Neutrófilos Tipo de estudio: Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Am J Clin Oncol Año: 2019 Tipo del documento: Article

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Neoplasias Cutáneas / Neoplasias de la Úvea / Neoplasias Primarias Desconocidas / Redes Neurales de la Computación / Receptor de Muerte Celular Programada 1 / Melanoma / Neutrófilos Tipo de estudio: Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Am J Clin Oncol Año: 2019 Tipo del documento: Article