Efficacy and safety of desmopressin in women with nocturia: a systematic review and meta-analysis of randomized controlled trials

Purpose To evaluate the efficacy and safety of desmopressin treatment in women with nocturia. Methods The PubMed, EMBASE, ISI web of knowledge, and the Cochrane Controlled Trial Register of Controlled Trials were searched from their inception date till April, 2019. The meta-analysis was performed by Revman 5.3. This review also stratified each outcome by dose (< 25 mu g, 25 mu g versus > 25 mu g) to explore the differences in the dose response for orally disintegrating tablet (ODT). Results Seven publications with seven trials were included in this review. The methodological quality of these trials was fair, and four studies had low risk of bias. The number of nocturnal voids per night was significantly decreased by desmopressin when compared to the control [6 trials, Weighted Mean Difference (WMD) = 0.41, P < 0.00001], and the difference between < 25, 25 and > 25 mu g dose ODT groups was also significant (P = 0.03). The duration of first sleep period was significantly increased by desmopressin [4 trials, WMD = 66.64, P < 0.00001], and the difference between these three doses ODT was not significant (P = 0.15). Overall, the risk ratios (RR) for 33% responder rate showed significance when compared with desmopressin to controls [3 trials, RR = 1.30, P = 0.0003]. The number of total adverse events was similar in both desmopressin and control groups [5 trials, RR = 0.95, P = 0.59], otherwise, showed no significant difference between different ODT dose groups (P = 0.82). Conclusions Desmopressin had certain efficacy and adequate safety in women with nocturia. The exploration of appropriate dose for female patients, and other influential factors, such as age should be conducted and considered in future.