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Medicine Aug 2021Alpha1-adrenoceptor antagonists (α1-blockers) are first-line drugs for the treatment of lower urinary tract symptoms associated with benign prostate hyperplasia (BPH).... (Comparative Study)
Comparative Study Meta-Analysis
Efficacy and tolerability of doxazosin gastro-intestinal therapeutic system versus tamsulosin in patients with lower urinary tract symptoms associated with benign prostatic hyperplasia: A systematic review and meta-analysis.
BACKGROUND
Alpha1-adrenoceptor antagonists (α1-blockers) are first-line drugs for the treatment of lower urinary tract symptoms associated with benign prostate hyperplasia (BPH). Doxazosin gastrointestinal therapeutic system (GITS) and tamsulosin belong to the 2 most frequently prescribed α1-blockers. This systematic review and meta-analysis was performed to compare the efficacy and tolerability of these 2 α1-blockers.
METHODS
A systematic review of published randomized controlled trials in English or Chinese language was performed using the PubMed, EMBASE, Cochrane Library, CNKI, Wanfang, and Vip databases. After data extraction and quality assessment, the meta-analysis was performed to compare clinical parameters (International Prostate Symptom Score [IPSS] total [IPSS-T], storage [IPSS-S], voiding [IPSS-V], maximum urine flow [Qmax], and postvoid residual) and adverse events (AEs) that changed after first drug intake.
RESULTS
After the screening, 8 eligible randomized controlled trials with 1316 patients were identified. Doxazosin-GITS showed a significantly higher efficacy compared with tamsulosin (IPSS-T P < .001, IPSS-S P < .001, and IPSS-V P < .001). There were no significant differences between the 2 drugs for changes in Qmax (P = .477) or postvoid residual (P = .739). The overall AEs were significantly lower in the doxazosin-GITS group (risk ratio: 0.77; 95% CI: 0.54-1.08; P = .036). However, dizziness (P = .387), headache (P = .745), asthenia (P = .693), postural hypotension (P = .114), and retrograde ejaculation (P = .187) were similar between the 2 groups.
CONCLUSIONS
This meta-analysis indicates that doxazosin-GITS has significantly higher efficacy and lower AEs than tamsulosin in patients with lower urinary tract symptoms/benign prostate hyperplasia.
Topics: Doxazosin; Humans; Lower Urinary Tract Symptoms; Male; Prostatic Hyperplasia; Tamsulosin; Treatment Outcome; Urological Agents
PubMed: 34414962
DOI: 10.1097/MD.0000000000026955 -
International Psychogeriatrics Feb 2013Medications are frequently prescribed for neuropsychiatric symptoms (NPS) associated with dementia, although information on the efficacy and safety of medications for... (Review)
Review
BACKGROUND
Medications are frequently prescribed for neuropsychiatric symptoms (NPS) associated with dementia, although information on the efficacy and safety of medications for NPS specifically in long-term care (LTC) settings is limited. The objective of this study was to provide a current review of the efficacy and safety of pharmacological treatments for NPS in LTC.
METHODS
We searched MEDLINE, EMBASE, PsychINFO, and the Cochrane Library for randomized controlled trials comparing medications with either placebo or other interventions in LTC. Study quality was described using the Cochrane collaboration risk of bias tool. The efficacy of medications was evaluated using NPS symptom rating scales. Safety was evaluated through rates of trial withdrawals, trial withdrawals due to adverse events, and mortality.
RESULTS
A total of 29 studies met inclusion criteria. The most common medications evaluated in studies were atypical antipsychotics (N = 15), typical antipsychotics (N = 7), anticonvulsants (N = 4), and cholinesterase inhibitors (N = 3). Statistically significant improvements in NPS were noted in some studies evaluating risperidone, olanzapine, and single studies of aripiprazole, carbamazepine, estrogen, cyproterone, propranolol, and prazosin. Study quality was difficult to rate in many cases due to incomplete reporting of details. Some studies reported higher rates of trial withdrawals, adverse events, and mortality associated with medications.
CONCLUSIONS
We conclude that there is limited evidence to support the use of some atypical antipsychotics and other medications for NPS in LTC populations. However, the generally modest efficacy and risks of adverse events highlight the need for the development of safe and effective pharmacological and non-pharmacological interventions for this population.
Topics: Anticonvulsants; Antidepressive Agents; Antipsychotic Agents; Behavioral Symptoms; Cholinesterase Inhibitors; Dementia; Diagnostic Techniques, Neurological; Humans; Long-Term Care; Practice Patterns, Physicians'; Psychiatric Status Rating Scales; Psychomotor Disorders; Randomized Controlled Trials as Topic; Treatment Outcome
PubMed: 23083438
DOI: 10.1017/S1041610212001627 -
Urology Journal Aug 2020Alpha-blockers have been proven as an effective method for increasing the stone expulsion rate of distal ureteral stones. Limited studies have focused on doxazosin; its... (Meta-Analysis)
Meta-Analysis
PURPOSE
Alpha-blockers have been proven as an effective method for increasing the stone expulsion rate of distal ureteral stones. Limited studies have focused on doxazosin; its efficacy remained unclear. We performed this meta-analysis to investigate the efficacy and safety of doxazosin for patients diagnosed with distal ureteral stones less than 10mm.
MATERIALS AND METHODS
We systematically searched Ovid MEDLINE®, Cochrane Library, EMBASE, and PubMed for articles comparing doxazosin and conventional care or tamsulosin for distal ureteral stones through October 2019. The outcome measures were stone expulsive rate (SER), stone expulsive time (SET), pain episodes, analgesics consumption, and adverse events.
RESULTS
We included 12 studies involving 836 participants with distal ureteral stones less than 10mm in our review. The present meta-analysis showed doxazosin could significantly increase SER [RR=1.64,95%CI (1.32, 2.04), P < 0.00001], shorten SET [WMD=-3.97,95% CI (-5.68, -2.27), P < 0.00001] compared with conventional care. In the subgroup analyses, doxazosin showed no benefit in the children subgroup (<16 years old) [RR=1.63,95% CI (0.73,3.64), P =0.23]. No statistically significant difference was observed regarding the effectiveness of doxazosin and tamsulosin in SER, SET, and safety. 9 in 286 participants reported doxazosin-related adverse events; most were mild to moderate.
CONCLUSION
This meta-analysis may suggest that doxazosin is a safe and effective MET for distal ureteral stones less than 10mm. It is not demonstrated to have any significant difference with tamsulosin in SER, SET, and safety. However, it showed no benefits for patients<16 years old.
Topics: Adrenergic alpha-1 Receptor Antagonists; Doxazosin; Humans; Treatment Outcome; Ureteral Calculi
PubMed: 32869260
DOI: 10.22037/uj.v16i7.5958 -
Urologia Internationalis 2019To identify trends in the evidence base regarding the effectiveness of using α-blockers in children versus adults and compare outcomes.
AIM/OBJECTIVE
To identify trends in the evidence base regarding the effectiveness of using α-blockers in children versus adults and compare outcomes.
METHODS
A literature search up using the key words including urolithiasis/renal/ureteric stone in children/paediatric population, medical expulsive treatment (MET), α-blocker/alfuzosin/tamsulosin/doxazosin. Included were randomized or controlled clinical trials in paediatric stone formers (aged ≤18 years). Outcome measures for assessment included the overall stone expulsion rate, expulsion time, the number of pain episodes and adverse drug effects and/or reactions. Further comparison of efficacy levels using respective studies from the adult population was performed in order to identify trends, similarities and differences.
RESULTS
A total of 8,259 articles were identified. Full text evaluation was possible for 28 articles. Although the picture is clearer in the paediatric group, the lack of reproducible results in adults certainly poses serious questions about data collection, analysis and interpretation in each individual study. The apparent paradox is due to the methodological differences between studies.
CONCLUSION
The effectiveness of α-blockers and other medication as MET needs to be studied in multi-institutional, double-blind, placebo-controlled studies that would aim to prove superiority to placebo in contemporary clinical situations, with realistic end points and standardized outcome measure determination.
Topics: Adolescent; Adrenergic alpha-1 Receptor Antagonists; Age of Onset; Child; Doxazosin; Evidence-Based Medicine; Female; Humans; Male; Quinazolines; Remission Induction; Tamsulosin; Treatment Outcome; Urolithiasis; Urological Agents
PubMed: 30669141
DOI: 10.1159/000455157 -
The Cochrane Database of Systematic... Nov 2020Shock wave lithotripsy (SWL) is a widely used method to treat renal and ureteral stone. It fragments stones into smaller pieces that are then able to pass spontaneously... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Shock wave lithotripsy (SWL) is a widely used method to treat renal and ureteral stone. It fragments stones into smaller pieces that are then able to pass spontaneously down the ureter and into the bladder. Alpha-blockers may assist in promoting the passage of stone fragments, but their effectiveness remains uncertain. OBJECTIVES: To assess the effects of alpha-blockers as adjuvant medical expulsive therapy plus usual care compared to placebo and usual care or usual care alone in adults undergoing shock wave lithotripsy for renal or ureteral stones.
SEARCH METHODS
We performed a comprehensive literature search of the Cochrane Library, the Cochrane Database of Systematic Reviews, MEDLINE, Embase, several clinical trial registries and grey literature for published and unpublished studies irrespective of language. The date of the most recent search was 27 February 2020.
SELECTION CRITERIA
We included randomized controlled trials of adults undergoing SWL. Participants in the intervention group had to have received an alpha-blocker as adjuvant medical expulsive therapy plus usual care. For the comparator group, we considered studies in which participants received placebo.
DATA COLLECTION AND ANALYSIS
Two review authors independently selected studies for inclusion/exclusion, and performed data abstraction and risk of bias assessment. We conducted meta-analysis for the identified dichotomous and continuous outcomes using RevManWeb according to Cochrane methods using a random-effects model. We judged the certainty of evidence on a per outcome basis using GRADE.
MAIN RESULTS
We included 40 studies with 4793 participants randomized to usual care and an alpha-blocker versus usual care alone. Only four studies were placebo controlled. The mean age of participants was 28.6 to 56.8 years and the mean stone size prior to SWL was 7.1 mm to 13.2 mm. The most widely used alpha-blocker was tamsulosin; others were silodosin, doxazosin, terazosin and alfuzosin. Alpha-blockers may improve clearance of stone fragments after SWL (risk ratio (RR) 1.16, 95% confidence interval (CI) 1.09 to 1.23; I² = 78%; studies = 36; participants = 4084; low certainty evidence). Based on the stone clearance rate of 69.3% observed in the control arm, an alpha-blocker may increase stone clearance to 80.4%. This corresponds to 111 more (62 more to 159 more) participants per 1000 clearing their stone fragments. Alpha-blockers may reduce the need for auxiliary treatments after SWL (RR 0.67, 95% CI 0.45 to 1.00; I² = 16%; studies = 12; participants = 1251; low certainty evidence), but also includes the possibility of no effect. Based on a rate of auxiliary treatments in the usual care arm of 9.7%, alpha-blockers may reduce the rate to 6.5%. This corresponds 32 fewer (53 fewer to 0 fewer) participants per 1000 undergoing auxiliary treatments. Alpha-blockers may reduce major adverse events (RR 0.60, 95% CI 0.46 to 0.80; I² = 0%; studies = 7; participants = 747; low certainty evidence). Major adverse events occurred in 25.8% of participants in the usual care group; alpha-blockers would reduce this to 15.5%. This corresponds to 103 fewer (139 fewer to 52 fewer) major adverse events per 1000 with alpha-blocker treatment. None of the reported major adverse events appeared drug-related; most were emergency room visits or rehospitalizations. Alpha-blockers may reduce stone clearance time in days (mean difference (MD) -3.74, 95% CI -5.25 to -2.23; I² = 86%; studies = 14; participants = 1790; low certainty evidence). We found no evidence for the outcome of quality of life. For those outcomes for which we were able to perform subgroup analyses, we found no evidence of interaction with stone location, stone size or type of alpha-blocker. We were unable to conduct an analysis by lithotripter type. The results were also largely unchanged when the analyses were limited to placebo controlled studies and those in which participants explicitly only received a single SWL session.
AUTHORS' CONCLUSIONS
Based on low certainty evidence, adjuvant alpha-blocker therapy following SWL in addition to usual care may result in improved stone clearance, less need for auxiliary treatments, fewer major adverse events and a reduced stone clearance time compared to usual care alone. We did not find evidence for quality of life. The low certainty of evidence means that our confidence in the effect estimate is limited; the true effect may be substantially different from the estimate of the effect.
Topics: Adrenergic alpha-1 Receptor Antagonists; Adult; Chemotherapy, Adjuvant; Combined Modality Therapy; Doxazosin; Humans; Indoles; Kidney Calculi; Lithotripsy; Middle Aged; Prazosin; Quinazolines; Randomized Controlled Trials as Topic; Tamsulosin; Ureteral Calculi
PubMed: 33179245
DOI: 10.1002/14651858.CD013393.pub2