Efficacy Variables (efficacy + variable)

Distribution by Scientific Domains

Kinds of Efficacy Variables

  • primary efficacy variable
  • secondary efficacy variable


  • Selected Abstracts


    Real-Life Safety and Efficacy of Vardenafil in the Treatment of Erectile Dysfunction,Results from 30,010 U.S. Patients

    THE JOURNAL OF SEXUAL MEDICINE, Issue 2 2007
    Eric Cheng MD
    ABSTRACT Introduction., Clinical trials show that vardenafil produces effective and satisfactory first-dose success rates and reliability for erection and intercourse in men with erectile dysfunction (ED). Aim., This study was conducted to evaluate real-life efficacy, safety, and acceptance of vardenafil in men with ED. Methods., This open-label, prospective study, conducted in 6,740 U.S. centers, included an initial visit and one or two follow-up visits within a 2-month period of the first vardenafil dose. Vardenafil was administered in 5,20 mg doses. Main Outcome Measures., Efficacy variables included first-dose success rates for vaginal penetration, maintenance of erection, and satisfaction based on physician and patient assessments. Safety was assessed by adverse events (AEs). Results., A total of 30,010 men were included in the safety/intent-to-treat (S/ITT) analysis, with 26,043 men in the adjusted S/ITT population. Vardenafil improved erectile function in 78% of men, with 75% rating overall efficacy as "satisfying" or "very satisfying." The overall rates of successful penetration and maintenance with vardenafil following the first dose were 78% and 68%, respectively. For men with mild and moderate ED, first-dose success rates for penetration were 89% and 82%, respectively, and for maintenance, 82% and 71%, respectively. First-dose penetration and maintenance of erection rates were 76% and 66%, respectively, for men with self-reported hypertension, and 70% and 60%, respectively, for men with diabetes mellitus. At study end, 67% of patients preferred to continue using vardenafil. The most frequently reported AEs were headache (4%) and flushing (2%). Vardenafil was well tolerated, with a "satisfied/very satisfied" tolerability rating in 75% of cases as assessed by the physician. Conclusions., This observational study demonstrated the tolerability and efficacy of vardenafil in men with ED and comorbidities. Vardenafil provided a high rate of first-dose intercourse success and a favorable safety profile in patients with and without comorbid disease. Cheng E. Real-life safety and efficacy of vardenafil in the treatment of erectile dysfunction,Results from 30,010 U.S. patients. J Sex Med 2007;4:432,439. [source]


    Randomized clinical trial comparing 5% and 1% topical minoxidil for the treatment of androgenetic alopecia in Japanese men

    THE JOURNAL OF DERMATOLOGY, Issue 8 2009
    Ryoji TSUBOI
    Abstract Minoxidil is efficacious in inducing hair growth in patients with androgenetic alopecia by inducing hair follicles to undergo transition from the early to late anagen phase. Although the efficacy of 1% topical minoxidil has been confirmed in Japan, no controlled study of 5% topical minoxidil has been conducted using male Japanese subjects. The objective of this trial was to verify the superiority in clinical efficacy of 5% topical minoxidil to 1% topical minoxidil in a double-blind controlled study with male, Japanese androgenetic alopecia patients as the subjects. The trial included 300 Japanese male patients aged 20 years or older with androgenetic alopecia who were administered either 5% topical minoxidil (n = 150) or 1% topical minoxidil (n = 150) for 24 weeks. The mean change from the baseline in non-vellus hair/cm2, the primary efficacy variable, was 26.4 (n = 142) in the 5% topical minoxidil group and 21.2 (n = 144) in the 1% topical minoxidil group at 16 weeks, the main time point for the evaluation. The difference between the groups was significant (P = 0.020). The incidence of adverse events was 8.7% (13/150) in the 5% group and 5.3% (8/150) in the 1% group, with no significant difference between the groups (,2 -test: P = 0.258). Our findings confirmed the superiority of 5% topical minoxidil to 1% topical minoxidil in treating Japanese men with androgenetic alopecia. [source]


    Evaluating therapeutic effect in symptoms of moderate-to-severe premenstrual syndrome with Vitex agnus castus (BNO 1095) in Chinese women

    AUSTRALIAN AND NEW ZEALAND JOURNAL OF OBSTETRICS AND GYNAECOLOGY, Issue 2 2010
    Linlin MA
    Objectives:, To assess therapeutic effect of an extract of Vitex agnus castus (VAC, BNO 1095) in premenstrual syndrome (PMS) in Chinese women. Design:, It was a prospective, randomised, double-blind, placebo-controlled study carried out in China. Eligible patients were treated with VAC extract or placebo for three cycles. Symptoms were documented with PMS diary (PMSD), a daily rating scale with 17 items. Main efficacy variable was the reduction percentage of 17 symptom score documented in PMSD during the luteal phase of the third treatment cycle. Results:, A total of 67 patients were enrolled and randomly assigned to VAC group or placebo group. Of these, 64 patients completed the study (31 vs. 33). All the 17 symptoms showed a significantly greater improvement with VAC than placebo (P < 0.05) except lower abdominal cramping (P > 0.05). Conclusion:, Vitex agnus castus is more effective than placebo in the treatment of moderate-to-severe PMS in Chinese women, especially in symptoms of negative effect and insomnia. [source]


    Comparison of tamsulosin and naftopidil for efficacy and safety in the treatment of benign prostatic hyperplasia: a randomized controlled trial

    BJU INTERNATIONAL, Issue 4 2005
    Momokazu Gotoh
    OBJECTIVES To compare the efficacy and safety of two ,1a/,1d adrenoceptor (AR) antagonists with different affinity for the ,1AR subtypes, tamsulosin and naftopidil, in the treatment of benign prostatic hyperplasia (BPH). PATIENTS AND METHODS Patients with BPH were randomized to receive either tamsulosin or naftopidil. The primary efficacy variables were the changes in the total International Prostate Symptom Score (IPSS), maximum flow rate on free uroflowmetry, and residual urine volume. The secondary efficacy variables were average flow rate, changes in the IPSS storage score, IPSS voiding score, and quality-of-life (QoL) Index score, from baseline to endpoint (12 weeks). Data on all randomized patients were included in the safety analyses for adverse effects and changes in blood pressure. RESULTS Of the 185 patients enrolled data for 144 who were eligible for inclusion in the efficacy analysis were analysed (75 from the tamsulosin and 69 from the naftopidil group). There was no significant difference in any variable at baseline between the groups. There were satistically significant improvements for all primary and secondary variables in both groups, except for residual urine in the tamsulosin group. However, there was no significant intergroup difference in the improvement of any efficacy variable between the groups. The adverse effects were comparable, with no significant differences in systolic and diastolic blood pressure after treatment in both groups. CONCLUSIONS This study suggests that naftopidil is as effective and safe as tamsulosin. Both drugs were effective in improving storage and voiding symptoms. However, there was no difference in clinical efficacy or adverse effects between the ,1 AR antagonists with different affinity to ,1 subtypes, ,1a and ,1d. [source]


    Efficacy and safety of tafluprost 0.0015% versus latanoprost 0.005% eye drops in open-angle glaucoma and ocular hypertension: 24-month results of a randomized, double-masked phase III study

    ACTA OPHTHALMOLOGICA, Issue 1 2010
    Hannu Uusitalo
    Abstract. Purpose:, The objective of the study was to compare the long-term efficacy and safety of tafluprost 0.0015% with latanoprost 0.005% eye drops in patients with open-angle glaucoma or ocular hypertension. Methods:, This double-masked, active-controlled, parallel-group, multinational, multicentre, phase III study was conducted at 49 centres in 8 countries. Eligible patients were assigned to treatment administered once daily at 20:00 hrs for up to 24 months. Change from baseline intraocular pressure (IOP) was the primary efficacy variable. Adverse events were recorded and ocular safety was evaluated. Both tafluprost and latanoprost were preserved with benzalkonium chloride. Results:, From 533 patients randomized, 402 patients completed 24 months of therapy. Both treatments had a substantial IOP-lowering effect which persisted throughout the study (,7.1 mmHg for tafluprost and ,7.7 mmHg for latanoprost at 24 months). Although the IOP-lowering effect during the study was slightly larger with latanoprost, this difference was clinically small and the noninferiority of tafluprost to latanoprost over all diurnal IOP measurements was shown with anova and almost reached with ancova (upper limits of the 95% confidence intervals 1.38 and 1.52 for the overall period, respectively). The noninferiority limit was 1.5 mmHg. Conclusions:, Tafluprost is a new effective and well-tolerated treatment for glaucoma and ocular hypertension. [source]


    Milnacipran and pindolol: a randomized trial of reduction of antidepressant latency

    HUMAN PSYCHOPHARMACOLOGY: CLINICAL AND EXPERIMENTAL, Issue 8 2003
    Michael T. Isaac
    Abstract Background New, better tolerated and faster treatments for depression are needed. Patients are understandably unhappy with having to wait 3 to 4 weeks for a response to an antidepressant, while experiencing side effects almost immediately. This frequently has an adverse effect on compliance and engagement with treatment. Aims The primary objective was to assess the activity of pindolol on the onset of antidepressive response of milnacipran. The secondary objective was to assess the number of responders among the patients who received milnacipran and pindolol versus patients who received milnacipran and placebo. The tertiary objective was to evaluate the safety of milnacipran and pindolol versus milnacipran and placebo. Method Randomized, double-blind, placebo-controlled study over 42 days. Setting Inner city London community mental health teams. Participants 80 patients were selected and gave written consent to treatment, 78 were randomized (39 in each group) and evaluated for safety (intention-to-treat, ITT, safety data set), 77 (ITT efficacy data set), and 64 (per protocol, PP, data set) were evaluated for efficacy. The mean age was 31.9 for the pindolol group and 32.3 for the placebo. Intervention All patients received milnacipran 50,mg twice a day plus either pindolol 2.5,mg (the ,pindolol group') or matching placebo (the ,placebo group') three times a day. Outcome measures The main efficacy variable was the Montgomery,Åsberg depression rating scale (MADRS) score at days 0, 4, 7, 10, 14, 21, 28, 42 on PP data set in an observation carried (OC) approach. Secondary efficacy variables were clinical global impression (global improvement) and Hamilton depression rating scale (HDRS). Results Improvement in MADRS total score was greater in the pindolol group than in the placebo group from day 7 (p=0.03). Responder rates in the clinical global impression were 97.2% for the pindolol group and 60.6% for the placebo group. The treatment was well tolerated with the most common side effects being nausea (28.2%; 35.9%), vomiting (7.7%; 23.1%), hot flushes (15.4%; 5.1%) and sweating (12.8%; 12.8%). Conclusion The milnacipran and pindolol combination is safe, well tolerated and efficacious in major depression, and represents a rational strategy for the possible acceleration or potentiation of antidepressant action. Copyright © 2003 John Wiley & Sons, Ltd. [source]


    Trospium chloride once-daily extended release is effective and well tolerated for the treatment of overactive bladder syndrome: an integrated analysis of two randomised, phase III trials

    INTERNATIONAL JOURNAL OF CLINICAL PRACTICE, Issue 12 2009
    D. R. Staskin
    Summary Background:, Trospium chloride is an antimuscarinic agent with a hydrophilic polar quaternary amine structure that is minimally metabolised by hepatic cytochrome P450 and is actively excreted in the urine, each of which confers a potential benefit with regard to efficacy and tolerability. Purpose:, We analysed pooled data from two identically designed phase III trials of a once-daily, extended-release (XR) formulation of trospium chloride (trospium XR 60-mg capsules) in subjects with overactive bladder syndrome (OAB). Methods:, Adults with OAB of , 6 months' duration with urinary urgency, frequency and , 1 urge urinary incontinence (UUI) episode/day were enrolled in these multicentre, parallel-group, double-blind trials. Participants were randomised (1 : 1) to receive trospium XR 60 mg or placebo for 12 weeks. Primary efficacy variables were changes in urinary frequency and the number of UUI episodes/day. Adverse events (AEs) were recorded throughout. Results:, In total, 1165 subjects were randomised (trospium XR, 578; placebo, 587). At baseline, subjects averaged 12.8 toilet voids/day and 4.1 UUI episodes/day. Compared with placebo, subjects treated with trospium XR had significantly greater reductions from baseline in the mean number of toilet voids/day (,1.9 vs. ,2.7; p < 0.001) and UUI episodes/day (,1.8 vs. ,2.4; p < 0.001) at week 12. The most frequent AEs considered possibly related to study treatment were dry mouth (trospium XR, 10.7%; placebo, 3.7%) and constipation (trospium XR, 8.5%; placebo, 1.5%). Notably, rates of central nervous system (CNS) AEs were lower with trospium XR vs. placebo (dizziness: 0.2% vs. 1.0%; headache: 1.4% vs. 2.4%). Conclusions:, Treatment with trospium XR resulted in statistically significant improvements in both of the dual primary and all of the secondary outcome variables. Trospium XR demonstrated favourable rates of AEs, particularly CNS AEs (numerically lower than with placebo) and dry mouth (lower than previously reported with trospium immediate-release, although not compared in a head-to-head study). [source]


    The safety and tolerability of duloxetine in depressed elderly patients with and without medical comorbidity

    INTERNATIONAL JOURNAL OF CLINICAL PRACTICE, Issue 8 2007
    T. N. Wise
    Summary Aim and methods:, The impact of medical comorbidity on the efficacy and tolerability of duloxetine in elderly patients with major depressive disorder (MDD) was investigated in this study. Data were obtained from a multicentre, randomised, double-blind, placebo-controlled study in 311 patients with MDD aged 65,89. The primary outcome measure was a prespecified composite cognitive score based on four cognitive tests: (i) Verbal Learning and Recall Test; (ii) Symbol Digit Substitution Test; (iii) 2-Digit Cancellation Test and (iv) Letter-Number Sequencing Test. Secondary measures included the Geriatric Depression Scale (GDS), 17-Item Hamilton Depression Scale (HAMD17), Clinical Global Impression-Severity (CGI-S) Scale, Visual Analogue Scale (VAS) for pain and 36-Item Short Form Health Survey (SF-36). Tolerability measures included adverse events reported as the reason for discontinuation and treatment-emergent adverse events (TEAEs). The consistency of the effect of duloxetine vs. placebo comparing patients with and without medical comorbidity (vascular disease, diabetes, arthritis or any of these) was investigated. Results:, Overall, duloxetine 60 mg/day demonstrated significantly greater improvement compared with placebo for the composite cognitive score, GDS and HAMD17 total scores, CGI-Severity, HAMD17 response and remission rates, and some of the SF-36 and VAS measures. There were few significant treatment-by-comorbidity subgroup interactions for these efficacy variables, or for adverse events reported as the reason for discontinuation and common TEAEs. Conclusions:, The present analyses suggested that the efficacy of duloxetine on cognition and depression in elderly patients, and its tolerability, were not largely affected by the comorbidity status. These results further support the use of duloxetine in elderly patients with MDD. [source]


    Alverine citrate fails to relieve the symptoms of irritable bowel syndrome: results of a double-blind, randomized, placebo-controlled trial

    ALIMENTARY PHARMACOLOGY & THERAPEUTICS, Issue 6 2002
    S. A. Mitchell
    Summary Background : Alverine citrate has been used in the treatment of irritable bowel syndrome for many years. Aims : To compare the efficacy and safety of a new formulation of alverine citrate, a 120-mg capsule, with placebo given three times daily for 12 weeks. Methods : One hundred and seven patients with irritable bowel syndrome were entered into this three-centre, double-blind, randomized, placebo-controlled, parallel group trial. The primary end-point was relief of abdominal pain indicated by improvement in the scores for severity and frequency. Secondary efficacy variables included scores for other clinical symptoms and for overall well-being. Results : The severity and frequency of abdominal pain improved in 66% and 68% of patients treated with alverine citrate vs. 58% and 69% of the placebo group, but these differences were not significant. The mean percentage reduction in the scores for abdominal pain from baseline to the final assessment, although greater in the alverine citrate group (43.7%) compared with the placebo group (33.3%), was not statistically significant. Conclusions : Alverine citrate is no better than placebo at relieving the symptoms of irritable bowel syndrome. Future trials should be designed to take into account the high and persistent placebo response seen in this condition. [source]


    Evaluation of the efficacy and safety of terguride in patients with fibromyalgia syndrome: Results of a twelve-week, multicenter, randomized, double-blind, placebo-controlled, parallel-group study,

    ARTHRITIS & RHEUMATISM, Issue 1 2010
    Oliver Distler
    Objective To assess the efficacy and safety of terguride, a partial dopamine agonist, in patients with fibromyalgia syndrome (FMS). Methods In a 12-week, multicenter, double-blind, placebo-controlled, parallel-group study, 99 patients were randomized at a ratio of 2 to 1 to receive terguride or placebo. Over 21 days, the dosage was titrated to a maximum daily dose of 3 mg of terguride or placebo, and this fixed dosage was continued over 9 weeks. The primary efficacy variable was the intensity of pain (100-mm visual analog scale). Secondary efficacy variables included the Fibromyalgia Impact Questionnaire (FIQ) score, the tender point score (TPS), and the Hamilton Depression Scale (HDS) score. During the study, patients were evaluated for the presence of cervical spine stenosis by magnetic resonance imaging (MRI). Results No significant differences in the change in pain intensity, FIQ score, TPS, or HDS score between baseline and 12 weeks were observed in the terguride group as compared with the placebo group. Cervical spine stenosis was detected in 22% of the patients. Only patients with cervical spine stenosis responded to terguride treatment. FIQ scores improved significantly (per-protocol analysis), and pain intensity, the TPS score, and the HDS score showed a trend toward improvement in the terguride group as compared with the placebo group. Terguride treatment was safe. Only those adverse events already known to be side effects of terguride were observed. Premature termination of the study in patients receiving terguride (26%) occurred predominantly during up-titration and in the absence of comedication for treatment of nausea. Conclusion Terguride treatment did not improve pain, the FIQ score, the TPS, or the HDS score in the total study population. However, a subgroup of patients with cervical spine stenosis seemed to benefit from terguride treatment. [source]


    An investigation of dose titration with darifenacin, an M3 -selective receptor antagonist

    BJU INTERNATIONAL, Issue 4 2005
    William Steers
    OBJECTIVES To evaluate the efficacy, tolerability and safety of a flexible-dosing strategy with darifenacin, an M3 -selective receptor antagonist, in patients with symptoms of overactive bladder (OAB). PATIENTS AND METHODS In this multicentre double-blind 12-week study, 395 patients (aged 22,89 years; 84% female) with OAB symptoms for >6 months were randomized (2 : 1) and received once-daily treatment with darifenacin controlled-release tablets 7.5 mg (268 patients) or matching placebo (127). After 2 weeks of treatment, the efficacy, safety and tolerability were assessed and the dose increased to 15 mg once daily (pseudo-increase for placebo recipients) if additional efficacy was required by both the patient and physician. In the week before clinic visits (at 2 and 12 weeks), patients recorded incontinence episodes (primary efficacy endpoint) and several secondary efficacy variables in an electronic daily diary. Safety and tolerability were evaluated from withdrawal rates and adverse-event reports. RESULTS The treatment groups had comparable baseline characteristics. Similar proportions of darifenacin (59%) and placebo (68%) recipients increased the dose at 2 weeks; at 12 weeks patients on darifenacin (overall group) had a significantly greater reduction in the median number of incontinence episodes per week than had those on placebo, at ,,8.2 (,62.9%) and ,,6.0 (,48.1%), respectively (P = 0.035). There were also significant improvements in voiding frequency (P = 0.001), bladder capacity (volume voided; P=,0.036), frequency of urgency (P < 0.001), severity of urgency (P = 0.013) and number of significant leaks/week (i.e. incontinence episodes needing a change of clothing or pads, per week; P = 0.010) for darifenacin over placebo. Subset analysis suggested that some patients (those remaining on darifenacin 7.5 mg) were more sensitive to darifenacin than those who increased the dose, based on both efficacy and adverse events. Continued treatment with 7.5 mg for ,sensitive' patients, and an increased dose (to 15 mg) for remaining patients, resulted in comparable outcomes by 12 weeks. The most common treatment-related adverse events were mild-to-moderate dry mouth and constipation, which led to discontinuation in <,3.0% of darifenacin-treated patients and <1.0% of the placebo group. Central nervous system and cardiovascular adverse events were comparable to those with placebo. CONCLUSIONS Darifenacin appears to be an effective, well-tolerated and flexible treatment for patients with OAB, allowing individualized dosing according to patient needs. [source]


    A comparison of the effects of dorzolamide/timolol fixed combination versus latanoprost on intraocular pressure and pulsatile ocular blood flow in primary open-angle glaucoma patients

    ACTA OPHTHALMOLOGICA, Issue 6 2004
    I. Janulevicienė
    Abstract. Purpose:,To evaluate the effects of dorzolamide/timolol fixed combination (D/T) compared to latanoprost on intraocular pressure (IOP) and pulsatile ocular blood flow (POBF) in primary open-angle glaucoma (POAG) patients. Methods:,Thirty patients with POAG were randomized in an open-label, cross-over study. Intraocular pressure reduction was achieved by 4 weeks medical therapy with D/T twice daily or latanoprost 0.005% dosed once in the evening. During a 4-week run,in and a 4-week wash-out period between study arms, patients ceased use of all other glaucoma medications and used timolol maleate 0.5% twice daily. Primary efficacy variables were IOP and POBF. Results:,There was no difference in baseline IOP and POBF parameters between the two study arms. Both D/T and latanoprost statistically significantly reduced IOP by 4.6 mmHg (p < 0.0001) and 3.75 mmHg (p < 0.0001) and increased POBF by 2.048 µl/second (p = 0.0030) and 2.147 µl/second (p = 0.0009), respectively. Repeated measures anova detected significant changes in POBF with treatment (p = 0.0361). Dorzolamide/timolol fixed combination statistically significantly increased pulse volume by 0.767 µl (p = 0.0087), while latanoprost therapy had no significant effect (p = 0.2407). Conclusions:,Both drugs had similar effects in terms of IOP reduction. Dorzolamide/timolol significantly increased pulse volume while latanoprost had no effect. Further studies are necessary to establish whether the enhancement of choroidal blood flow can prevent glaucoma progression. [source]