Double Dummy Design for Blinding Studies With Automated Insulin Delivery Systems: A Proof of Concept Trial

  • Amir Tirosh
  • , Andrea Benedetti
  • , Nama Peltz-Sinvani
  • , Maya Laron-Hirsh
  • , Yael Cohen
  • , Amna Jabarin
  • , Benny Grosman
  • , Ohad Cohen

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Comparative assessment of therapeutic technologies is often biased due to the inability to blind interventions, especially when therapies differ in form or dosing. While double-dummy design, where participants receive both an active treatment and a matched placebo to maintain blinding, is well established in pharmacological trials, its applicability for medical devices requiring user interaction, such as automated insulin delivery (AID) systems is challenging. Methods: We present the methodology by which two AID systems are used in a double-dummy, blinded, randomized trial, one system providing insulin therapy and the other, a diluent. Outcomes and conclusion: The study demonstrates the feasibility, of comparing 2 AID systems, without operartor bias.

Original languageEnglish
JournalJournal of Diabetes Science and Technology
DOIs
StateAccepted/In press - 1 Jan 2026
Externally publishedYes

Keywords

  • automated insulin delivery systems
  • comparative study
  • continuous glucose monitoring (CGM)
  • double dummy

ASJC Scopus subject areas

  • Internal Medicine
  • Bioengineering
  • Endocrinology, Diabetes and Metabolism
  • Biomedical Engineering

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