Generalized Promotion Time Cure Model with Bayesian Shrinkage Priors R package GPTCM version 2.0.0 Generalized promotion time cure model (GPTCM) via Bayesian hierarchical modeling for multiscale data integration (Zhao et al. (2025) <doi:10.48550/arXiv.2509.01001>). The Bayesian GPTCMs are applicable for both low- and high-dimensional data. Software Depends: R (>= 4.1.0) Imports: Rcpp, survival, riskRegression, ggplot2, ggridges, miCoPTCM, loo, mvnfast, Matrix, scales, utils, stats, graphics LinkingTo: Rcpp, RcppArmadillo Suggests: knitr, survminer Zhi Zhao <zhi.zhao@medisin.uio.no> Comprehensive R Archive Network (CRAN) Zhi Zhao [aut, cre] GPL-3 2026-06-03 application/tgz https://CRAN.R-project.org/package=GPTCM doi:10.32614/CRAN.package.GPTCM