In this study, the Restricted Randomization method of block randomization is used. Blocking is used to balance the number of samples assigned to each of the study groups.
The randomization method will be balanced using block randomization and will be done in 4 blocks using a computer. Each drug is named with a number from 1 to 40. Patients are divided into two groups for the trial: the first and group (20 people) groups or drug groups and the second control group (20 people) placebo group. Both groups are equally divided in terms of characteristics and conditions. The control group is assigned to "A" and the intervention group to "B," and then these two groups are divided into 6 blocks of 4: (1)AABB, (2) BBAA, (3) ABAB, (4) B A B A, (5) A B B A, (6) BAAB. These blocks are randomly stacked together by a computer to form a chain of random groups (e.g., BBAA AABB ABAB BABA ABBA BAAB). Patients then enter these groups in the order of enrollment.
For randomization, a randomization software for random sequence software called Random allocation software is used. In addition to simple randomization, this software can generate random sequences by block generation method. For concealment, we use allocation concealment, which is the method used to execute a random sequence on the study participants. The assigned group is not known before the individual is assigned. Using opaque envelopes sealed with random sequences (Sequentially numbered, sealed, opaque envelopes) in which in this method each random sequence is recorded on a card and the cards are in the envelopes respectively. Are placed. To maintain a random sequence, the envelopes are numbered in the same way on the outer surface. Finally, the lids of the letter envelopes are glued and placed inside a box, respectively. At the beginning of the registration of participants, based on the order of entry of eligible participants into the study, one of the envelopes of the letter is opened in order, and the assigned group of the participant is revealed.