Comparison Between Pregabalin and Sertraline for Treatment of Uraemic Pruritus in Patients on Maintenance Haemodialysis: A Single-Centric Study.

Objective: To compare oral pregabalin with oral sertraline for treatment of uraemic pruritus.

Study design: Randomised controlled trial. Place and Duration of the Study: Department of Nephrology, Pak Emirates Military Hospital Rawalpindi, Pakistan, from October 2023 to January 2024.

Methodology: Patients with end-stage renal disease having pruritus for at least 6 weeks were included. Exclusion criteria comprised other dermatological or systemic diseases associated with pruritus, mental health issues, thrice-a-week haemodialysis schedule, and use of other treatments for uraemic pruritus. They were randomised to receive either pregabalin 75mg daily or sertraline 50mg daily for six weeks using computer-generated sequences. The Urdu version of the 5-D Itch scale was used to document the severity of pruritus at the baseline and at the end of therapy. Side effects to the treatment were also monitored.

Results: There were 8 (16.67%) females and 40 (83.33%) males, with a mean age of 52.19 ± 12.19 years. The baseline 5-D Itch scale scores were equal in both groups. Mean improvement in 5-D Itch scale scores was 3.75 ± 1.26 and 2.08 ± 1.18 with pregabalin and sertraline, respectively (p <0.001). Side effects were reported by 2 (8.33%) patients on pregabalin and none using sertraline (p = 0.489).

Conclusion: Pregabalin was found to be more effective than sertraline in treating uraemic pruritus, though with a statistically insignificant trend towards a higher frequency of side effects.

Key words: Chronic renal failure, Pruritus, Renal dialysis, Selective serotonin reuptake inhibitors, Uraemia.