f.trialPhase: Calculate phase of a clinical trial

In ctrdata: Retrieve and Analyze Clinical Trials in Public Registers

Calculate phase of a clinical trial

Description

Trial concept calculated: phase of a clinical trial as per ICH E8(R1).

Usage

f.trialPhase(df = NULL)

Arguments

df	data frame such as from dbGetFieldsIntoDf. If 'NULL', prints fields needed in 'df' for calculating this trial concept, which can be used with dbGetFieldsIntoDf.

Value

data frame with columns '_id' and '.trialPhase', which is an ordered factor with levels 'phase 1', 'phase 1+2', 'phase 2', 'phase 2+3', 'phase 2+4', 'phase 3', 'phase 3+4', 'phase 1+2+3', 'phase 4', 'phase 1+2+3+4'.

Examples

# fields needed
f.trialPhase()

## Not run: 

# apply trial concept when creating data frame
dbc <- nodbi::src_sqlite(
  dbname = system.file("extdata", "demo.sqlite", package = "ctrdata"),
  collection = "my_trials", flags = RSQLite::SQLITE_RO)
trialsDf <- dbGetFieldsIntoDf(
  calculate = "f.trialPhase",
  con = dbc)

## End(Not run)

ctrdata documentation built on April 3, 2025, 8:12 p.m.