The grouping of patients and the type of intervention received is at the disposal of the first executive of the plan. The patient, assistant clinical pharmacist and statistical analyst will not know about the grouping of patients. Clichesin and placebo drugs will be placed in an envelope based on predetermined codes and will be provided to the participants based on randomization.
Patients will be randomly assigned using the online system https://www.sealedenvelope.com/simple-randomiser/v1/lists in 43 blocks of 4 as follows:
ABBA, ABBA, BAAB, BBAA, ABBA, BAAB, AABB, ABAB, AABB, ABBA, BABA, AABB, BBAA, AABB, ABAB, BAAB, BABA, BAAB, ABBA, BAAB, BABA, ABAB, ABBA, ABAB, ABAB, AABB, BABA, BBAA, BAAB, BBAA, BBAA, BBAA, AABB, ABBA, BAAB, AABB, ABAB, BBAA, BAAB, BBAA, BBAA, ABBA, ABBA