International Clinical Trials Day

The Chocolate Trial Results


Participants were invited to read the information sheet and decide if they met the eligibility criteria ( i.e. if they wanted to eat chocolate). They were randomised, by the flip of a coin to treatment 1 or treatment 2. After swallowing the treatment they were asked to complete a short questionnaire.


66 people took part in the trial. 30 were randomised to Treatment 1 (dark chocolate caramel) and 36 to Treatment 2 (milk chocolate caramel).

Question 1.

Is dark chocolate more satisfying than milk chocolate?

Graph 1 : hunger vs chocolate type

The results show no significant difference between chocolate types at satisfying hunger. Most of those who ate either Treatment 1 or Treatment 2 reported feeling less hungry to some extent. However we cannot rule out the possibility that those participants who stated they were either a ‘bit hungry’ or ‘very hungry’ after eating were merely requesting to have more due to the chocolate being so delicious. Unfortunately this question is outside the scope of this current study, but may be suitable grounds for initiating another trial next year!

Question 2.

Does chocolate type improve learning about clinical trials?

Graph 2: Chocolate type vs learning

The pie charts clearly show an almost identical spread of answers. Chocolate type would thus appear to have little or no effect on improving learning about clinical trials. Most participants stated that they had learnt ‘a little bit’ about clinical trials after taking part in the mock trial, regardless of whether they had received Treatment 1 or 2, however we hope that this trial has sparked an interest to learn more about paediatric clinical trials by visiting our website.

Happy Clinical Trials Day from all at the ScotCRN!