Evidence map›Paper›PMID 28406915›Full record

ArticlePloS one2017

Predicting functional decline and survival in amyotrophic lateral sclerosis.

Mei-Lyn Ong, Pei Fang Tan, Joanna D Holbrook

Abstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

36 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Multidisciplinary care in Amyotrophic Lateral Sclerosis: a systematic review and meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021
    Pooled it
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Prognostic communication in amyotrophic lateral sclerosis: findings from a Nationwide Italian survey.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Urine specific gravity to identify and predict hydration need in ALS.Amyotrophic lateral sclerosis & frontotemporal degeneration · 2022
    Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Mei-Lyn OngSingapore Institute for Clinical Sciences (SICS), Agency of Science and Technology Research (A*STAR), Brenner Centre for Molecular Medicine, 30 Medical Drive, Singapore, Singapore.
Pei Fang TanSingapore Institute for Clinical Sciences (SICS), Agency of Science and Technology Research (A*STAR), Brenner Centre for Molecular Medicine, 30 Medical Drive, Singapore, Singapore.
Joanna D HolbrookSingapore Institute for Clinical Sciences (SICS), Agency of Science and Technology Research (A*STAR), Brenner Centre for Molecular Medicine, 30 Medical Drive, Singapore, Singapore.ORCID http://orcid.org/0000-0003-1791-6894

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBetter predictors of amyotrophic lateral sclerosis disease course could enable smaller and more targeted clinical trials. Partially to address this aim, the Prize for Life foundation collected de-identified records from amyotrophic lateral sclerosis sufferers who participated in clinical trials of investigational drugs and made them available to researchers in the PRO-ACT database.

methodsIn this study, time series data from PRO-ACT subjects were fitted to exponential models. Binary classes for decline in the total score of amyotrophic lateral sclerosis functional rating scale revised (ALSFRS-R) (fast/slow progression) and survival (high/low death risk) were derived. Data was segregated into training and test sets via cross validation. Learning algorithms were applied to the demographic, clinical and laboratory parameters in the training set to predict ALSFRS-R decline and the derived fast/slow progression and high/low death risk categories. The performance of predictive models was assessed by cross-validation in the test set using Receiver Operator Curves and root mean squared errors.

resultsA model created using a boosting algorithm containing the decline in four parameters (weight, alkaline phosphatase, albumin and creatine kinase) post baseline, was able to predict functional decline class (fast or slow) with fair accuracy (AUC = 0.82). However similar approaches to build a predictive model for decline class by baseline subject characteristics were not successful. In contrast, baseline values of total bilirubin, gamma glutamyltransferase, urine specific gravity and ALSFRS-R item score-climbing stairs were sufficient to predict survival class.

conclusionsUsing combinations of small numbers of variables it was possible to predict classes of functional decline and survival across the 1-2 year timeframe available in PRO-ACT. These findings may have utility for design of future ALS clinical trials.

Indexed as

AlgorithmsDatabases, FactualModels, BiologicalAgedAmyotrophic Lateral SclerosisDisease-Free SurvivalFemaleHumansMaleMiddle AgedPredictive Value of TestsSurvival Rate

Identifiers

PMID28406915
PMCPMC5390993

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.