Resumen
Individuals with depression differ substantially in their response to treatment with antidepressants. Specific predictors explain only a small proportion of these differences. To meaningfully predict who will respond to which antidepressant, it may be necessary to combine multiple biomarkers and clinical variables. Using statistical learning on common genetic variants and clinical information in a training sample of 280 individuals randomly allocated to 12-week treatment with antidepressants escitalopram or nortriptyline, we derived models to predict remission with each antidepressant drug. We tested the reproducibility of each prediction in a validation set of 150 participants not used in model derivation. An elastic net logistic model based on eleven genetic and six clinical variables predicted remission with escitalopram in the validation dataset with area under the curve 0.77 (95%CI; 0.66-0.88; p = 0.004), explaining approximately 30% of variance in who achieves remission. A model derived from 20 genetic variables predicted remission with nortriptyline in the validation dataset with an area under the curve 0.77 (95%CI; 0.65-0.90; p < 0.001), explaining approximately 36% of variance in who achieves remission. The predictive models were antidepressant drug-specific. Validated drug-specific predictions suggest that a relatively small number of genetic and clinical variables can help select treatment between escitalopram and nortriptyline.
Idioma original | English |
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Número de artículo | 5530 |
Publicación | Scientific Reports |
Volumen | 8 |
N.º | 1 |
DOI | |
Estado | Published - dic. 1 2018 |
Nota bibliográfica
Funding Information:Competing Interests: R.I., K.H., P.M.c.G., A.F., W.M., D.S., M.R., M.Z.D., D.S., J.H., O.M., R.D. and K.M. have no conflicts of interest. C.M.L., R.U. and K.J.A. report grants from European Commission, during the conduct of the study. N.H. reports grant from European Commission (through Institute of Psychiatry, King’s College, London), and participation in clinical trials sponsored by pharmaceutical companies, including Lundbeck outside the submitted work. K.J.A. was previously (more than 48 months ago) a member of various advisory boards, receiving consultancy fees and honoraria (including from Lundbeck), and has received research grants from various companies including Johnson and Johnson Pharmaceuticals Research and Development and Bristol-Myers Squibb Pharmaceuticals Limited. She has also received consultancy fees and research support from Roche Diagnostics and Roche Molecular Systems She currently holds an Alberta Centennial Addiction and Mental Health Research Chair, funded by the Government of Alberta.
Publisher Copyright:
© 2018 The Author(s).
ASJC Scopus Subject Areas
- General
PubMed: MeSH publication types
- Journal Article
- Randomized Controlled Trial