NAPrior: Network Meta-Analytic Predictive Prior for Mid-Trial SoC Changes

Implements the Network meta-Analytic Predictive (NAP) prior framework to accommodate changes in the standard of care (SoC) during ongoing randomized controlled trials (RCTs). The method synthesizes pre- and post-change in-trial data by leveraging external evidence, particularly head-to-head trials comparing the original and new standards of care, to bridge the two evidence periods and enable principled borrowing. The package provides utilities to construct NAP-based priors and perform Bayesian inference for time-to-event endpoints using summarized trial evidence.

Version:	0.1.1
Depends:	R (≥ 4.0)
Imports:	stats, graphics, survival, R2jags, metafor, purrr, dplyr, tibble
Suggests:	rjags, knitr, rmarkdown
Published:	2026-01-20
DOI:	10.32614/CRAN.package.NAPrior
Author:	Chunyi Zhang [aut, cre]
Maintainer:	Chunyi Zhang <czhang12 at mdanderson.org>
License:	MIT + file LICENSE
NeedsCompilation:	no
Materials:	README, NEWS
CRAN checks:	NAPrior results

Documentation:

Reference manual:	NAPrior.html , NAPrior.pdf
Vignettes:	README (source, R code)

Downloads:

Package source:	NAPrior_0.1.1.tar.gz
Windows binaries:	r-devel: not available, r-release: NAPrior_0.1.1.zip, r-oldrel: NAPrior_0.1.1.zip
macOS binaries:	r-release (arm64): NAPrior_0.1.1.tgz, r-oldrel (arm64): NAPrior_0.1.1.tgz, r-release (x86_64): NAPrior_0.1.1.tgz, r-oldrel (x86_64): NAPrior_0.1.1.tgz

Linking:

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