A Observational Study to Evaluate the Efficacy and Safety of Pacitol Inj.

This observational study is evaluating how well and how safely Pacitol Injection (a vitamin D-related drug) works in patients on kidney dialysis who have overactive parathyroid glands — a common complication of chronic kidney disease. **You may be eligible if:** - You are a dialysis patient with overactive parathyroid glands (secondary hyperparathyroidism) due to chronic kidney disease - Your doctor has already planned to prescribe Pacitol Injection as part of your standard care - You can understand and agree to participate **You may NOT be eligible if:** - You have a known allergy to Pacitol or its ingredients - You have signs of vitamin D toxicity or high calcium levels - You are pregnant or breastfeeding - You have a parathyroid tumor and are scheduled for surgery to remove it - You have been on another clinical trial drug within the past 12 weeks Talk to your doctor to see if this trial is right for you.