23
Participants
Start Date
December 30, 2026
Primary Completion Date
December 30, 2028
Study Completion Date
December 30, 2029
Cyanocobalamin 1000 Mcg Oral Tablet
Oral cyanocobalamin supplement administered as a 1000 mcg tablet taken once daily for 6 weeks. Used in patients with early-onset B12 deficiency during PPI therapy.
Cyanocobalamin 1000 Mcg Sublingual Tablet
Sublingual cyanocobalamin supplement administered as a 1000 mcg tablet placed under the tongue once daily for 6 weeks. Used in patients with early-onset B12 deficiency during PPI therapy.
Proton Pump Inhibitor therapy only
This group will continue their standard PPI therapy without receiving any vitamin B12 supplementation, serving as a control group for the comparison of B12 correction efficacy.
Tanta University
OTHER