The package intsurv provides implementations of
integrative Cox model with uncertain event times (Wang et al., 2020)
Cox cure rate model with uncertain event status (Wang et al., 2020)
It also contains other survival analysis routines, including regular Cox cure rate model, regularized Cox cure rate model with elastic net penalty, and weighted concordance index.
Wang, W., Aseltine, R. H., Chen, K., & Yan, J. (2020). Integrative Survival Analysis with Uncertain Event Times in Application to A Suicide Risk Study. Annals of Applied Statistics, 14(1), 51--73.
Wang, W., Luo, C., Aseltine, R. H., Wang, F., Yan, J., & Chen, K. (2020). Suicide Risk Modeling with Uncertain Diagnostic Records. arXiv preprint arXiv:2009.02597.