These studies mainly involve healthy volunteers and attempt to properly assess the tolerance of future patients (detection of side effects) and the pharmacokinetics of therapeutic solutions.

The objective of these so-called tolerance studies is to find out how the product behaves in the body before testing its effectiveness in the patient.

It is therefore necessary to conduct these clinical studies in a strictly supervised medical framework, seeking very high precision, on small groups of healthy volunteers . Indeed, the presence of an infection or a pathology in a volunteer can disturb the results of the study.