Abstract:
BACKGROUND:Three inhibitors of phosphodiesterase 5 (PDE5) are now available for the treatment of erectile dysfunction (ED): sildenafil citrate, vardenafil, and tadalafil. Pharmacologic differences between these compounds may result in patient preferences for one over another and may influence treatment decisions made by the physician and patient. Therefore, clinical research is needed to investigate whether individual properties of the PDE5 inhibitors play a role in shaping patient preference. OBJECTIVES:The goal of this study was to determine what proportion of ED patients currently taking sildenafil would, after a period of treatment with tadalafil, elect to resume treatment with sildenafil at the customary dose and what proportion would elect a switch to tadalafil 20 mg for a longer period. The tolerability of both treatments was also investigated. METHODS:This was a short-term, multicenter, open-label, 1-way crossover trial conducted in Sweden and Italy. Eligible patients included men aged >or=18 years with a minimum 3-month history of ED who had been taking sildenafil at stable fixed doses of 25, 50, or 100 mg as needed for at least 6 weeks and up to 24 weeks. The study consisted of 6 phases: a 1-week screening phase, a 3-week sildenafil assessment phase, a 1-week washout phase, a 6-week tadalafil initiation phase, a 3-week tadalafil assessment phase, and a 6-month extension phase, during which patients received their treatment of choice free of charge. The primary outcome measure was the proportion of patients electing to take sildenafil or tadalafil during the extension phase. RESULTS:Of 155 men enrolled, 147 (97.8%) completed the assessment phases of the trial. Of these 147 men, 133 (90.5%) elected to receive tadalafil in the 6-month extension phase and 14 (9.5%) elected to receive sildenafil (P < 0.001). The proportions preferring tadalafil to sildenafil were similar irrespective of age group (>or=50 years, 92%; <50 years, 90%), severity of ED (mild, 95%; moderate, 88%; severe, 96%), etiology of ED (psychogenic, 94%; organic, 91%; mixed, 87%), and sildenafil dose at study entry (50 mg, 90%; 100 mg, 89%). Both medications were well tolerated. The most common treatment-emergent adverse events occurring in >or=2% of patients during the tadalafil assessment phase included headache (4.8%), nasal congestion (4.1%), dyspepsia (3.4%), flushing (2.7%), back pain (2.0%), diarrhea (2.0%), and nausea (2.0%); the most common treatment-emergent adverse events during the sildenafil assessment phase were flusing (7.1%), nasal congestion (6.5%), headache (4.5%), and nasopharyngitis (3.2%). CONCLUSIONS:In this short-term, open-label study, patients who were currently taking sildenafil for ED and then received tadalafil preferred to continue oral therapy with tadalafil over sildenafil by a ratio of approximately 9:1. Although the study sought to mimic the experience of actual patients receiving treatment for ED, the results are subject to potential limitations due to the design of the study, which included differences in dosing instructions and dosages for sildenafil and tadalafil. Both sildenafil and tadalafil were well tolerated.
journal_name
Clin Therjournal_title
Clinical therapeuticsauthors
Ströberg P,Murphy A,Costigan Tdoi
10.1016/s0149-2918(03)80329-6subject
Has Abstractpub_date
2003-11-01 00:00:00pages
2724-37issue
11eissn
0149-2918issn
1879-114Xpii
S0149291803803296journal_volume
25pub_type
临床试验,杂志文章,多中心研究abstract::Lidocaine generally is the agent of first choice against acute ventricular arrhythmias arising from many causes. It is clinically effective and well tolerated, having a rapid onset of action and a favorable electrophysiological profile. Unlike other antiarrhythmic agents, lidocaine does not interact with the autonomic...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:
更新日期:1984-01-01 00:00:00
abstract:PURPOSE:Rosuvastatin, a hydroxy methylglutaryl coenzyme A reductase inhibitor; telmisartan, an angiotensin receptor blocker; and amlodipine, a calcium channel inhibitor, are commonly prescribed together for the treatment of hypertension nonresponsive to monotherapy and accompanied by dyslipidemia. However, the pharmaco...
journal_title:Clinical therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.clinthera.2016.06.011
更新日期:2016-08-01 00:00:00
abstract:BACKGROUND:Dementia is a cerebral disorder resulting in a progressive deterioration of intellectual function that compromises the patient's ability to function. The diagnostic criteria for dementia are primarily clinical and are based on the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition. The Hac...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/S0149-2918(00)80056-9
更新日期:2000-07-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to test the ability of human insulin 70/30, insulin lispro mixture 75/25 (75% neutral protamine lispro [NPL], 25% insulin lispro), and insulin lispro mixture 50/50 (50% NPL, 50% insulin lispro) to control postprandial glucose (PPG) concentrations in patients with type 2 diabetes mell...
journal_title:Clinical therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.clinthera.2006.10.017
更新日期:2006-10-01 00:00:00
abstract:PURPOSE:The purpose of this study was to compare the bioavailability between 2 milk thistle-containing dietary supplements, Product B and IsaGenesis, in healthy volunteers. METHODS:Bioavailability between Product B, originally formulated as a powdered capsule, and IsaGenesis, reformulated as a soft gel, were compared ...
journal_title:Clinical therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.clinthera.2017.11.013
更新日期:2018-01-01 00:00:00
abstract:PURPOSE:Clopidogrel is a thienopyridine prodrug that inhibits platelet aggregation. It is prescribed to prevent atherothrombotic and thromboembolic events in patients receiving a stent implant in carotid, vertebral, or cranial arteries. The influence of cytochrome P-450 (CYP) 2C19 on the response to clopidogrel has bee...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2019.04.037
更新日期:2019-06-01 00:00:00
abstract:PURPOSE:Geriatric patients are more sensitive to the anesthetic effects of propofol and its adverse effects, such as hypotension, than is the general population; thus, a reduced dose (1-1.5 mg/kg) is recommended for the induction of anesthesia. The extent to which clinicians follow established dosing guidelines has not...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2015.10.005
更新日期:2015-12-01 00:00:00
abstract:BACKGROUND:Nearly half of all US patients with type 2 diabetes mellitus (T2DM) are unable to maintain adequate glycosylated hemoglobin (HbA₁(c)) control (ie, <7.0%). OBJECTIVE:The aim of this work was to determine the long-term cost-effectiveness of incretin-based therapy with once-daily liraglutide (vs twice-daily ex...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2010.08.010
更新日期:2010-09-01 00:00:00
abstract::In two multicenter, double-blind studies, ciclopirox olamine cream 1% was compared with either its cream vehicle or with 1% clotrimazole cream for the treatment of patients with tinea pedis. Evaluations were made before treatment, weekly for four weeks during treatment, and for two weeks posttreatment. Ciclopirox olam...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章
doi:
更新日期:1985-01-01 00:00:00
abstract:BACKGROUND:Concomitant aspirin use is a risk factor for nonsteroidal anti-inflammatory drug (NSAID)-associated upper gastrointestinal toxicity. In high-risk individuals, such as those with a history of NSAID-related gastric ulcer bleeding, gastroprotective therapy with a proton pump inhibitor has been reported to reduc...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/j.clinthera.2004.10.002
更新日期:2004-10-01 00:00:00
abstract:PURPOSE:This article focuses on 10 case studies of companies/organizations that are part of the current innovation ecosystem of regenerative medicine (RM) in the United Kingdom. It analyzes the actors, linkages, and influences that will determine the future shape of the RM industry sector and its capacity to live up to...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2018.06.003
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVE:The objectives of this study were to observe a commercially insured sample diagnosed with a venous thromboembolism (VTE) event and treated postevent with warfarin and to detail the thromboembolic and bleeding outcomes in the time periods during warfarin therapy and after discontinuation of such therapy. METH...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/s0149-2918(04)90187-7
更新日期:2004-07-01 00:00:00
abstract:BACKGROUND:Optimal treatment regimens for infections caused by Klebsiella pneumoniae carbapenemase (KPC)-producing Enterobacteriaceae are not well-defined. OBJECTIVES:This study describes the treatment and outcomes in patients with urinary tract infection (UTI) caused by KPC-producing Enterobacteriaceae. METHODS:This...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2012.05.002
更新日期:2012-06-01 00:00:00
abstract:BACKGROUND:Conflicting results using the combination of ezetimibe and statins to reduce the risk of cardiovascular events in patients with acute coronary syndrome (ACS) have been reported. OBJECTIVE:The aim of this work was to assess the effectiveness of ezetimibe coadministered with statins in reducing cardiovascular...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2011.08.002
更新日期:2011-09-01 00:00:00
abstract::A double-blind, randomized, placebo-controlled trial was undertaken to evaluate the effect of penicillin on the pneumococcal carrier state of 32 men with chronic bronchitis. Treatment consisted of 250-mg phenoxymethyl penicillin or placebo tablets taken by mouth twice daily for periods of one to three years. Penicilli...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND:The continuing increase in the rate of penicillin and cephalosporin resistance among respiratory pathogens and of cross-resistance to macrolide antibiotics has led to the recommendation that fluoroquinolone antibiotics be used to treat high-risk patients with community-acquired pneumonia (CAP) and acute bact...
journal_title:Clinical therapeutics
pub_type: 杂志文章,评审
doi:10.1016/S0149-2918(00)89007-4
更新日期:2000-04-01 00:00:00
abstract:BACKGROUND:Patients' adherence to antiosteoporotic drug therapy is essential to prevent fracture and complications of osteoporosis over the long term. The guidance given in treating osteoporosis can potentially enhance adherence. OBJECTIVE:This study was conducted to compare adherence to osteoporosis regimens by patie...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2013.05.019
更新日期:2013-07-01 00:00:00
abstract:PURPOSE:A combination of clopidogrel and aspirin is the standard treatment for patients with acute coronary syndrome and those undergoing percutaneous coronary intervention. Two novel antiplatelet agents, ticagrelor and prasugrel, have been shown to rapidly and more effectively inhibit the P2Y12 receptor compared with ...
journal_title:Clinical therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.clinthera.2015.01.010
更新日期:2015-03-01 00:00:00
abstract:PURPOSE:Intensive blood pressure (BP) lowering is important for the treatment of hypertension; however, it has been a challenge to achieve target BP in many patients. The purpose of this study was to explore the optimal dosage of a fixed-dose combination of candesartan cilexetil (CAN) and amlodipine besylate (AML), by ...
journal_title:Clinical therapeutics
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.clinthera.2017.06.014
更新日期:2017-08-01 00:00:00
abstract::We compared the efficacy of timolol maleate ophthalmic gel-forming solution 0.5% QD with that of levobunolol hydrochloride 0.5% BID, as measured by change in intraocular pressure (IOP), effect on heart rate, and ocular tolerability. The study had a positive-controlled, double-masked, randomized, multicenter, 12-week, ...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/s0149-2918(98)80112-4
更新日期:1998-11-01 00:00:00
abstract:BACKGROUND:PHX1149 is a dipeptidyl peptidase-4 (DPP4) inhibitor that is currently in clinical development for the treatment of type 2 diabetes mellitus. PHX1149 is a small (molecular weight = 241.16 Da), highly water-soluble (>2 g/mL), orally active molecule with a selectivity index of 15- to 319-fold relative to those...
journal_title:Clinical therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.clinthera.2007.08.005
更新日期:2007-08-01 00:00:00
abstract:BACKGROUND:Use of cholesterol-lowering regimens has been shown to reduce the risk of coronary heart disease (CHD), both in primary and secondary prevention. However, there have been few studies of the relative benefits and risks of the various cholesterol-lowering agents in patient groups with specific risk factors for...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/s0149-2918(01)80050-3
更新日期:2001-03-01 00:00:00
abstract::This study evaluated the efficacy, safety, and most suitable dose of omeprazole in short-term acute treatment (4 weeks) and maintenance treatment (6 months) of patients older than 60 years of age with endoscopically diagnosed gastric ulcer (GU) or duodenal ulcer (DU). This randomized, prospective study included 156 pa...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1994-11-01 00:00:00
abstract::The long-term tolerability and efficacy of indomethacin were evaluated in a retrospective study of 67 patients with moderate to severe rheumatoid arthritis, osteoarthritis, or ankylosing spondylitis who took the drug daily for periods ranging from three to 20 years. Only patients who had not experienced side effects d...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:
更新日期:1986-01-01 00:00:00
abstract::Two studies were conducted to determine the prevalence of Chlamydia trachomatis in the urine and cervical exudates of women with genitourinary symptoms. In the first study, 873 women attending the World Health Organization-Sexually Transmitted Disease Center of the Alfred Fournier Institute, in Paris, were examined. I...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND:The real-world clinical effectiveness of exogenous insulin is limited by nonadherence. Various insulin delivery systems have been developed to help improve adherence, with prefilled pens gaining popularity among adult Singaporeans with diabetes. However, adherence to insulin in people with diabetes in Singap...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2014.05.009
更新日期:2014-07-01 00:00:00
abstract::The overall objective of this research project was to measure the types and amounts of Mexican drug products being purchased and declared to US Customs by US residents crossing the border in Laredo, Texas. Data for this study were obtained from the US Customs Declaration Form, which each person completes as he or she ...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/s0149-2918(96)80079-8
更新日期:1996-11-01 00:00:00
abstract:PURPOSE:The initiation of enzyme-replacement therapy prior to the occurrence of substantial and irreversible organ damage in patients with Fabry disease is of critical importance. The Fabry Outcome Survey is an international disease registry of patients with a confirmed diagnosis of Fabry disease. In this study, data f...
journal_title:Clinical therapeutics
pub_type: 杂志文章
doi:10.1016/j.clinthera.2020.10.007
更新日期:2020-12-01 00:00:00
abstract::One hundred children with peritonitis resulting from a perforated appendix were treated with ceftazidime or netilmicin. Metronidazole was added to both groups to treat the anaerobic organisms commonly associated with the infecting aerobic organisms in peritonitis. Escherichia coli was the most common aerobe found in p...
journal_title:Clinical therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1990-01-01 00:00:00
abstract:PURPOSE:Megestrol acetate oral suspension is an appetite stimulant indicated for cachexia. It is available in a conventional formulation and as a nanocrystal dispersion. The aim of this study was to compare the tolerability and pharmacokinetics of these formulations under fed conditions in healthy Korean volunteers. M...
journal_title:Clinical therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.clinthera.2014.09.022
更新日期:2015-02-01 00:00:00