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  • Poster presentation
  • Open Access

KCTU randomisation and IMP management system

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Trials201314 (Suppl 1) :P63

  • Published:

The Erratum to this article has been published in Trials 2015 16:338


  • Central Stock
  • Block Randomisation
  • Robust Solution
  • Stock Level
  • Randomisation Algorithm

The management of medicinal clinical trials commonly presents challenges to trial teams, particularly when seeking practical and affordable systems for managing the trial randomisation process and associated Investigational Medicinal Product (IMP) distribution.

In blinded IMP trials, these challenges include:

  • 1) how to manage IMP supply when the preferred randomisation algorithm does not guarantee balance between trial arms in each centre

  • 2) tracking of IMP expiry dates and stock levels to ensure continuous supply of both trial arms at site

  • 3) tracking availability of central stock of manufactured IMP to facilitate planning of subsequent manufacturing runs

To provide an efficient and robust solution to these challenges, a web-based randomisation system with integrated IMP management, is presented.

Designed within the King's Clinical Trials Unit, the system accommodates simple randomisation, block randomisation, stratified block randomisation and minimisation, enabling trial teams to manage blinded IMP distribution to sites while remaining fully blinded to treatment allocation. Blinding is maintained even where there is gross imbalance between trial arms of patients within a study site.

This system avoids the need for IMP manufacturing companies to take on this role. Further, it avoids the need for individuals within the study management team to be unblinded while managing the IMP supply during the conduct phase. It has also been designed to accommodate many of the common events that occur in clinical trials, such as patients losing packs of medication or IMP expiry dates being extended mid-study.


Authors’ Affiliations

King's Clinical Trials Unit at KHP, Institute of Psychiatry, King's College London, London, UK
Biomedical Research Centre for Mental Health, South London and Maudsley NHS Trust, London, UK


© Murphy et al; licensee BioMed Central Ltd. 2013

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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