htaBIM - Budget Impact Modelling for Health Technology Assessment
Implements a structured, reproducible framework for budget
impact modelling (BIM) in health technology assessment (HTA),
following the ISPOR Task Force guidelines (Sullivan et al.
(2014) <doi:10.1016/j.jval.2013.08.2291> and Mauskopf et al.
(2007) <doi:10.1111/j.1524-4733.2007.00187.x>). Provides
functions for epidemiology-driven population estimation, market
share modelling with flexible uptake dynamics, per-patient cost
calculation across multiple cost categories, multi-year budget
projections, payer perspective analysis, deterministic
sensitivity analysis (DSA), and probabilistic sensitivity
analysis (PSA) via Monte Carlo simulation. Produces
submission-quality outputs including ISPOR-aligned summary
tables, scenario comparison tables, per-patient cost
breakdowns, tornado diagrams, PSA histograms, and text and HTML
reports compatible with NICE, CADTH, and EU-HTA dossier
formats. Ships with an interactive Shiny dashboard built on
'bslib' for point-and-click model building and exploration.