For comparison, a peptide like ARA-290 has four registered trials, and it's still not approved for anything
Zhao L, Zhang F, Ding X, Wu G, Lam YY, Wang X, Fu H, Xue X, Lu C, Ma J, Yu L, Xu C, Ren Z, Xu Y, Xu S, Shen H, Zhu X, Shi Y, Shen Q, Dong W, Liu R, Ling Y, Zeng Y, Wang X, Zhang Q, Wang J, Wang L, Wu Y, Zeng B, Wei H, Zhang M, Peng Y, Zhang C (2018) Gut bacteria selectively promoted by dietary fibers alleviate type 2 diabetes

Peptide Reconstitution Protocol Standard laboratory reconstitution protocol for lyophilised peptides using bacteriostatic water: Preparation Allow the peptide vial and bacteriostatic water vial to reach room temperature (reduces condensation) Wipe the rubber stoppers of both vials with an alcohol swab (70% isopropanol) Allow the alcohol to evaporate completely before piercing the stopper Reconstitution Steps Draw the required volume of bacteriostatic water into a sterile syringe (typically 12 mL for 10 mg peptides) Inject the water slowly down the inside wall of the peptide vial (not directly onto the powder) Allow the water to gently flow over the lyophilised powder without forceful spraying Do not shake the vial
This medication is primarily prescribed to treat or prevent conditions caused by a deficiency in Vitamin B12, such as pernicious anaemia and various forms of neuropathy (nerve damage)