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Temporary Halts

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A temporary halt to a research study is a stoppage (suspension) which was not envisaged in the approved protocol and where there is an intention to resume the study. 

A study may be halted (suspended) for various reasons such as:

  • On the recommendation of the IDMC (i.e. further review of new safety information)
  • as an Urgent Safety Measure due to a serious breach. 

A temporary halt applies when the suspension is imposed on all sites; suspension of the study at a single site due to logistical reasons is not considered a temporary halt (unless the study is a single-site study).