as-treated analysis

^[1]^[2]

Introduction

used in reference to randomized controlled trial
treatment group and a control group
case 1: subjects in the treatment group stop treatment
case 2: subjects in the treatment group start treatment
result: no longer just 2 groups
- control, control to treatment, treatment, treatment to control
  - MKSAP20 seems to think there are still only 2 groups^[2]
  - sites as reference^[1] which does not mention as-treated analysis

↑ ^1.0 ^1.1 Tripepi G, Chesnaye NC, Dekker FW, et al. Intention to treat and per protocol analysis in clinical trials. Nephrology (Carlton). 2020;25:513-517. PMID: https://pubmed.ncbi.nlm.nih.gov/32147926
↑ ^2.0 ^2.1 Medical Knowledge Self Assessment Program (MKSAP) 20 American College of Physicians, Philadelphia 2025