Long-Term Efficacy of Mirabegron Add-On Therapy to Antimuscarinic Agents in Patients With Spinal Cord Injury
Overview
Affiliations
Objective: To evaluate the long-term efficacy of mirabegron add-on therapy in patients with spinal cord injury (SCI) based on an urodynamic study.
Methods: This retrospective study involved a chart audit of individuals with SCI who underwent two consecutive urodynamic studies between April 1, 2015 and April 1, 2018. After adding 50 mg of mirabegron once a day to the pre-existing antimuscarinic therapy for a period of, at least 6 months, the following variables were analyzed: change in cystometric capacity, change in bladder compliance, change in maximal detrusor pressure, change in reflex volume, and presence of significant leakage during filling cystometry.
Results: A total of 31 participants with a mean age of 41±15 years were included in the analysis. A significant increase in cystometric capacity (mean, 362 to 424 mL; p=0.03), reflex volume (mean, 251 to 329 mL; p=0.02), and bladder compliance (median, 12 to 18 mL/cmH2O; p=0.04) was observed. The presence of leakage during filling cystometry was significantly reduced (29% to 10%; p=0.03). Likewise, a non-significant decrease in the change in maximal detrusor pressure was observed (mean, 31 to 27 cmH2O; p=0.39).
Conclusion: Adding mirabegron to conventional antimuscarinics further improved urodynamic parameters in patients with chronic SCI, and sustained efficacy was observed in long-term use.
Guha L, Kumar H Pharmaceut Med. 2023; 37(6):463-490.
PMID: 37698762 DOI: 10.1007/s40290-023-00499-3.
Lower urinary tract dysfunction in common neurological diseases.
Moussa M, Papatsoris A, Chakra M, Fares Y, Dellis A Turk J Urol. 2020; 46(Supp. 1):S70-S78.
PMID: 32384046 PMC: 7731959. DOI: 10.5152/tud.2020.20092.