Evidence map›Paper›PMID 31009073›Full record

ArticleBiometrics2019

Using a surrogate marker for early testing of a treatment effect.

Layla Parast, Tianxi Cai, Lu Tian

Abstract read
In one paragraph

Article in Biometrics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–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

11 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Efficient Testing Using Surrogate Information.Biometrical journal. Biometrische Zeitschrift · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Higher Levels of Cerebrospinal Fluid and Plasma Neurofilament Light in Human Immunodeficiency Virus-Associated Distal Sensory Polyneuropathy.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2023
    Article
  10. Article
  11. 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.

Layla ParastStatistics Group, RAND Corporation, Santa Monica, California.ORCID 0000-0002-7288-1009
Tianxi CaiDepartment of Biostatistics, Harvard University, Boston, Massachusetts.
Lu TianDepartment of Biomedical Data Science, Stanford University, Stanford, California.ORCID 0000-0002-5893-0169

Funding

Robust Statistical Methods to Identify and Use Surrogate Markers in DiabetesR01DK118354 · NIDDK · UNIVERSITY OF TEXAS AT AUSTIN · PI PARAST, LAYLA · 2018 to 2025
$2.0M
Robust Statistical Methods to Identify Surrogate Markers in DiabetesR21DK103118 · NIDDK · RAND CORPORATION · PI PARAST, LAYLA · 2014 to 2015
$476k
NIDDK NIH HHS R01 DK118354NIDDK NIH HHS R21 DK103118
6 · The paper itself

Abstract

The development of methods to identify, validate, and use surrogate markers to test for a treatment effect has been an area of intense research interest given the potential for valid surrogate markers to reduce the required costs and follow-up times of future studies. Several quantities and procedures have been proposed to assess the utility of a surrogate marker. However, few methods have been proposed to address how one might use the surrogate marker information to test for a treatment effect at an earlier time point, especially in settings where the primary outcome and the surrogate marker are subject to censoring. In this paper, we propose a novel test statistic to test for a treatment effect using surrogate marker information measured prior to the end of the study in a time-to-event outcome setting. We propose a robust nonparametric estimation procedure and propose inference procedures. In addition, we evaluate the power for the design of a future study based on surrogate marker information. We illustrate the proposed procedure and relative power of the proposed test compared to a test performed at the end of the study using simulation studies and an application to data from the Diabetes Prevention Program.

Indexed as

BiomarkersTime FactorsTreatment OutcomeComputer SimulationDiabetes MellitusHumansModels, StatisticalStatistics, NonparametricBiomarkerskernel smoothingnonparametric methodresamplingsurrogatesurvival analysistesting

Identifiers

PMID31009073
PMCPMC6810708

What OpenQuestion holds

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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.