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Calculate per-patient drug cost from pack size and dosing schedule

Source: R/bim_costs.R
bim_costs_drug.Rd

Helper function to derive an annual drug cost per patient from list price, pack size, dose, and dosing frequency. Supports weight-based dosing.

Usage

bim_costs_drug(
  treatment,
  list_price_per_pack,
  dose_per_admin,
  admin_per_year,
  units_per_pack = 1,
  wastage_factor = 1,
  body_weight_kg = NULL
)

Arguments

treatment

character(1). Treatment name.

list_price_per_pack

numeric(1). List price per pack or vial.

dose_per_admin

numeric(1). Dose per administration (in the units consistent with pack size).

admin_per_year

numeric(1). Number of administrations per year.

units_per_pack

numeric(1). Number of dose units per pack. Default 1.

wastage_factor

numeric(1). Factor for vial/pack wastage (e.g. 1.0 for no wastage, 1.15 for 15% wastage). Default 1.0.

body_weight_kg

numeric(1) or NULL. Mean patient body weight (kg), if dosing is weight-based. Default NULL.

Value

A named numeric vector of length 1: annual drug cost per patient, suitable for use in bim_costs().

Examples

sib_cost <- bim_costs_drug(
  treatment       = "Sibeprenlimab",
  list_price_per_pack = 2375,
  dose_per_admin  = 1,
  admin_per_year  = 12,
  units_per_pack  = 1
)
sib_cost
#> Sibeprenlimab 
#>         28500