Evidence map›Paper›PMID 37721513›Full record

ArticleBiometrics2023

SAM: Self-adapting mixture prior to dynamically borrow information from historical data in clinical trials.

Peng Yang, Yuansong Zhao, Lei Nie, Jonathon Vallejo, Ying Yuan

Abstract read
In one paragraph

Article in Biometrics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Article
  2. Article
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  4. An E-value-Informed Sensitivity Analysis Framework for Hybrid Controlled Trials.medRxiv : the preprint server for health sciences · 2026
    Article
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  8. Review
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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

5 authors.

Peng YangDepartment of Statistics, Rice University, Houston, Texas, USA.ORCID 0000-0002-0630-9506
Yuansong ZhaoDepartment of Biostatistics, The University of Texas Health Science Center, Houston, Texas, USA.
Lei NieCenter for Drug Evaluation and Research, Food and Drug Administration (FDA), Silver Spring, Maryland, USA.ORCID 0000-0002-7791-9395
Jonathon VallejoCenter for Drug Evaluation and Research, Food and Drug Administration (FDA), Silver Spring, Maryland, USA.
Ying YuanDepartment of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.ORCID 0000-0003-3163-480X

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
Tropism Enhanced Oncolytic Adenovirus for the Treatment of Brain TumorsP50CA127001 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Juan Fueyo · 2008 to 2026
$41.2M
Consortium for the Study of Chronic Pancreatitis, Diabetes and Pancreatic Cancer: Coordinating and Data Management Center (CSCPDPC-CDMC)U01DK108328 · NIDDK · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Liang Li, Suyu Liu · 2015 to 2026
$32.8M
Project 3: Inhibiting Oxidative Phosphorylation in Pancreatic CancerP50CA221707 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI KOPETZ, SCOTT, MAITRA, ANIRBAN · 2019 to 2023
$11.0M
NCI NIH HHS P30 CA016672NCI NIH HHS P50 CA127001NCI NIH HHS P50CA127001NCI NIH HHS P50 CA221707NCI NIH HHS P50CA221707NIDDK NIH HHS U01 DK108328
6 · The paper itself

Abstract

Mixture priors provide an intuitive way to incorporate historical data while accounting for potential prior-data conflict by combining an informative prior with a noninformative prior. However, prespecifying the mixing weight for each component remains a crucial challenge. Ideally, the mixing weight should reflect the degree of prior-data conflict, which is often unknown beforehand, posing a significant obstacle to the application and acceptance of mixture priors. To address this challenge, we introduce self-adapting mixture (SAM) priors that determine the mixing weight using likelihood ratio test statistics or Bayes factors. SAM priors are data-driven and self-adapting, favoring the informative (noninformative) prior component when there is little (substantial) evidence of prior-data conflict. Consequently, SAM priors achieve dynamic information borrowing. We demonstrate that SAM priors exhibit desirable properties in both finite and large samples and achieve information-borrowing consistency. Moreover, SAM priors are easy to compute, data-driven, and calibration-free, mitigating the risk of data dredging. Numerical studies show that SAM priors outperform existing methods in adopting prior-data conflicts effectively. We developed R package "SAMprior" and web application that are freely available at CRAN and www.trialdesign.org to facilitate the use of SAM priors.

Indexed as

Models, StatisticalResearch DesignBayes TheoremCalibrationLikelihood FunctionsSample Sizeadaptive designdynamic information borrowinghistorical datamixture distributionrare diseasesreal-world data

Identifiers

PMID37721513
PMCPMC10842647

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.