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Latest & greatest articles for quinapril
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Prevention of vascular damage in scleroderma and autoimmune Raynaud`s phenomenon: A multicenter, randomized, double-blind, placebo-controlled trial of the angiotensin-converting enzyme inhibitor quinapril. OBJECTIVE: To evaluate the efficacy and tolerability of prolonged administration of quinapril, a long-acting angiotensin-converting enzyme inhibitor, in the management of the peripheral vascular manifestations of limited cutaneous systemic sclerosis (lcSSc) and in the prevention (...) of the progression of visceral organ involvement in the disease. METHODS: This was a multicenter, randomized, double-blind, placebo-controlled study evaluating quinapril 80 mg/day, or the maximum tolerated dosage, in 210 patients with lcSSc or with Raynaud's phenomenon (RP) and the presence of SSc-specific antinuclear antibodies. Treatment was for 2-3 years. The primary outcome measure was the number of new ischemic ulcers appearing on the hands; secondary measures were the frequency and severity of RP attacks
[Advantages of quinapril therapy in patients with arterial hypertension and functional class III chronic heart failure with preserved left ventricular ejection fraction]. To determine advantages of therapy of functional class (FC) I-II chronic heart failure (CHF) with preserved left ventricular (LV) ejection fraction in patients with hypertensive disease (HD) with metoprolol succinate or quinapril and to assess their effect on regulatory-adaptive status.Two hundred patients with I-II FC CHF (...) and LVEF >50% at the background of stage I-II hypertensive disease participated in this study. They were randomized into 2 groups. Group I comprised 104 patients (mean age 52.8+1.9 years) who were prescribed metoprolol succinate 87.7+/-7.6 mg/day. Patients of group 2 (n=96, mean age 55.0+/-1.4 years) were prescribed quinapril 21.0+55 mg/day. Examination at baseline and after 6 months of therapy included 6 min walk test, treadmillometry with assessment of maximal oxygen consumptiion (VO2max
Lack of efficacy of quinapril on vascular damage in limited cutaneous systemic sclerosis. Gliddon et al. conducted a randomized, double-blind, multicenter, placebo-controlled study to evaluate the efficacy of the angiotensin-converting enzyme inhibitor quinapril for the management of vascular damage in systemic sclerosis (SSc). The trial comprised 213 patients with limited cutaneous SSc or Raynaud's phenomenon (mean age 54 years, 182 females) who were randomly assigned to receive 80 mg/day (...) , or the maximum tolerated dose, of quinapril (n = 105) or placebo (n = 108) for 2-3 years. Patients were assessed every 3 months. The number of new ischemic digital ulcers was recorded as the primary end point, while the frequency of Raynaud's phenomenon episodes, skin score, health status, pulmonary artery pressure and treatments for ischemia were also monitored as secondary end points. There were no detectable differences between patients treated with quinapril and those receiving placebo; however, although
Quinapril. A reappraisal of its pharmacology and therapeutic efficacy in cardiovascular disorders. Following systemic absorption, quinapril is converted by de-esterification to quinaprilat (the active diacid metabolite), an inhibitor of angiotensin converting enzyme (ACE). Pharmacodynamic studies in animals indicate inhibition of ACE both in plasma and at tissue sites, such as the arterial wall and heart, following administration of quinapril. Tissue ACE inhibition may be an important component (...) of the mechanism of action of quinapril (and other ACE inhibitors) in achieving favourable effects in cardiovascular disorders. Quinaprilat has a short elimination half-life (approximately 2 hours), but binds potently to and dissociates slowly from ACE, thus allowing once or twice daily administration of quinapril in the treatment of patients with hypertension or congestive heart failure. Quinapril 10 to 40 mg/day has achieved adequate control of blood pressure in most patients with essential hypertension
[Results of nonmedical interventions in multicenter randomized open study of efficacy of lifestyle modification and therapy with quinapril in patients with obesity and hypertension]. There is a pathogenetic interrelationship between obesity and hypertension. Moreover it has become evident that the use of most modern and active antihypertensive drugs can not be effective without concomitant treatment of obesity. This study was conducted in 18 cities of Russian Federation in order to demonstrate
Effects of angiotensin-converting enzyme inhibition on transient ischemia: the Quinapril Anti-Ischemia and Symptoms of Angina Reduction (QUASAR) trial. We sought to determine whether angiotensin-converting enzyme inhibition (ACE-I) (i.e., quinapril) prevents transient ischemia (exertional and spontaneous) in patients with coronary artery disease (CAD).It is known that ACE-I reduces the risk of death, myocardial infarction (MI), and other CAD-related outcomes in high-risk patients. Numerous (...) of ischemia during exercise. They were randomly assigned to one of two groups: 40 mg/day quinapril (n = 177) or placebo (n = 159) for 8 weeks. Patients then entered an additional eight-week treatment phase to examine the full dose range. Those assigned to 40 mg quinapril continued that dose and those assigned to placebo were titrated to 80 mg/day. Treadmill testing, the Seattle Angina Questionnaire, and ambulatory ECG monitoring were used to assess responses at baseline and at 8 and 16 weeks.The groups
Quinapril treatment increases insulin-stimulated endothelial function and adiponectin gene expression in patients with type 2 diabetes. Angiotensin-converting enzyme inhibitors reduce cardiovascular mortality and improve endothelial function in type 2 diabetic patients. We hypothesized that 2 months of quinapril treatment would improve insulin-stimulated endothelial function and glucose uptake in type 2 diabetic subjects and simultaneously increase the expression of genes that are pertinent (...) for endothelial function and metabolism.Twenty-four type 2 diabetic subjects were randomized to receive 2 months of quinapril 20 mg daily or no treatment in an open parallel study. Endothelium-dependent and -independent vasodilation was studied during serotonin or sodium nitroprusside infusion in the diabetic patients and in 15 healthy subjects. Endothelial function, insulin-stimulated endothelial function, and insulin-stimulated glucose uptake were measured before and after quinapril treatment. Blood flow
A prospective open-label randomised trial of quinapril and/or amlodipine in progressive non-diabetic renal failure. Treatment of hypertension slows the progression of non-diabetic nephropathies, but the optimal regimen is unknown. Angiotensin-converting enzyme inhibitors are more effective than beta-blockers, but their merits relative to calcium channel blockers are less clear.73 hypertensive patients with progressive non-diabetic nephropathies were prospectively randomised to open-label (...) quinapril (Q, n = 28), amlodipine (A, n = 28) or both drugs (Q&A, n = 17). Therapy was increased to achieve a diastolic blood pressure < 90 mm Hg. Patients were followed for 4 years or until death. The primary outcome was the combined endpoint of doubling serum creatinine, starting renal replacement therapy or death.There was no significant difference in the primary outcome, or in the change of glomerular filtration rate. Blood pressure was equally controlled throughout the study period. 29 (40
High-Dose Quinapril Versus Low-Dose Quinapril Plus Amlodipine in the Treatment of High-Risk Hypertensive Patients High-Dose Quinapril Versus Low-Dose Quinapril Plus Amlodipine in the Treatment of High-Risk Hypertensive Patients - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved (...) studies (100). Please remove one or more studies before adding more. High-Dose Quinapril Versus Low-Dose Quinapril Plus Amlodipine in the Treatment of High-Risk Hypertensive Patients The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our for details. ClinicalTrials.gov Identifier: NCT00313547 Recruitment Status : Terminated (Very difficult to recruit
Effects of Quinapril 40 mg With Alpha Lipoic Acid or Placebo on Diabetes and Hypertension Effects of Quinapril 40 mg With Alpha Lipoic Acid or Placebo on Diabetes and Hypertension - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more (...) studies before adding more. Effects of Quinapril 40 mg With Alpha Lipoic Acid or Placebo on Diabetes and Hypertension (QUALITY) The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our for details. ClinicalTrials.gov Identifier: NCT00795262 Recruitment Status : Completed First Posted : November 21, 2008 Last Update Posted : May 5, 2011 Sponsor: InVasc
A Study to Evaluate the Efficacy and Safety of Quinapril or Quinapril Plus Hydrochlorothiazide in Patients With Mild to Moderate Hypertension A Study to Evaluate the Efficacy and Safety of Quinapril or Quinapril Plus Hydrochlorothiazide in Patients With Mild to Moderate Hypertension - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save (...) this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more. A Study to Evaluate the Efficacy and Safety of Quinapril or Quinapril Plus Hydrochlorothiazide in Patients With Mild to Moderate Hypertension The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our for details
Quinapril decreases antifibrinolytic and prooxidative potential of propofol in arterial thrombosis in hypertensive rats Angiotensin converting enzyme inhibitors and propofol both exert hypotensive action and may affect hemostasis. We investigated the influence of quinapril and propofol on hemodynamics and hemostasis in renal-hypertensive rats with induced arterial thrombosis. Two-kidney, one clip hypertensive rats were treated with quinapril (3.0 mg/kg for 10 days), and then received propofol (...) infusion (15 mg/kg/h) during ongoing arterial thrombosis. The hemodynamic and hemostatic parameters were assayed. Quinapril exerted a hypotensive effect increasing after propofol infusion. Quinapril showed an antithrombotic effect with the platelet adhesion reduction, fibrinolysis enhancement and oxidative stress reduction. Propofol did not influence thrombosis; however, it inhibited fibrinolysis and showed prooxidative action. The effect of propofol on fibrinolysis and oxidative stress
LC-MS/MS assay of quinapril and its metabolite quinaprilat for drug bioequivalence evaluation: prospective, concurrential and retrospective method validation. The bioequivalence of two pharmaceutical formulations containing 10 mg quinapril was assessed by assaying the untransformed drug and its active metabolite quinaprilat from plasma samples.A gradient elution liquid chromatographic separation coupled to positive atmospheric pressure electrospray ionization and tandem mass spectrometry (...) detection was used and validated. Sample preparation is simple and uses protein precipitation through addition of an acetonitrile:methanol (8:2 v/v) mixture. The method has a run time of 6.3 min. Carvedilol was used as an internal standard. The multiple reactions monitoring mode was used for both quantitation and structural confirmation of target compounds. Linear 1/x²-weighted regressions characterize detector response function up to concentrations of 1000 ng/ml for quinapril and 2000 ng/ml
Effect of quinapril on in-stent restenosis and relation to plasma apoptosis signaling molecules. Angiotensin-converting enzyme inhibitors have been reported to inhibit in-stent restenosis. To assess the effect of angiotensin-converting enzyme inhibition on in-stent restenosis and its relation to apoptosis, 86 patients with chronic coronary artery disease who required stent implantation in the left anterior descending coronary artery or a major diagonal branch were studied. Patients were (...) randomized to receive quinapril 40 mg/day orally (n = 43) or a placebo (n = 43). Drug therapy was initiated 1 week before initial stenting and continued for 6 months. Plasma levels of the apoptotic signaling molecules soluble Fas and soluble Fas ligand obtained from blood drawn from the left anterior descending coronary artery were measured just before initial stenting and 6 months later, at the time of repeat coronary angiography. In-stent restenosis was present in 9.3% of patients in the quinapril
The effects of quinapril and atorvastatin on the responsiveness to sildenafil in men with erectile dysfunction. Phosphodiesterase-5 (PDE-5) inhibitors are an effective therapy for the majority of men with erectile dysfunction (ED). However, many men with ED still report a suboptimal or partial response even after an adequate trial of oral PDE-5 therapy. Since ED is associated with impaired vascular function and both atorvastatin and quinapril have been previously shown to improve vascular (...) function, we examined the effects of adjunctive treatment with these medications in men with vasculogenic ED who were suboptimal responders to 100 mg of sildenafil. Men with ED and suboptimal response to sildenafil were randomly assigned to 3 months of treatment with atorvastatin 40 mg (n = 12), quinapril 10 mg (n = 10), or placebo (n = 13), along with continued adjunctive sildenafil use. Measured variables included: International Index of Erectile Function (IIEF) questionnaire, brachial artery flow
Influence of preventive therapy with quinapril on IL-6 level in patients with chronic stable angina. We hypothesized that beneficial role of angiotensin converting enzyme inhibitors in stable coronary artery disease (CAD) therapy may involve (among others) their anti-inflammatory effects, which may be reflected by serum interleukin-6 (IL-6) levels. For that reason, we have investigated the influence of short-term administration of quinapril on serum IL-6 concentration. 124 patients suffering (...) from stable CAD and matched for some of CAD risk factors were enrolled in our study. Patients were randomized to treatment with quinapril or control (placebo administration). Blood samples were taken twice: before and after four weeks of quinapril administration. The effect of quinapril administration was assessed under double-blind placebo-controlled conditions. We observed that quinapril reduced serum IL-6 concentration in almost all studied subgroups of patients (p < 0.001). Interestingly
Quinapril for treatment of hypertension in Turkey: dose titration and diuretic combination treatment strategies. Recently the PatenT (Prevalence, awareness, treatment and control of hypertension in Turkey) study showed that while the prevalence of hypertension in Turkey is high, effective control of BP is infrequently achieved. This study investigated the efficacy and safety of quinapril (as monotherapy or in combination with hydrochlorothiazide [HCTZ]) for achieving BP control (target <140/90 (...) mm Hg) in Turkish subjects with mild to moderate hypertension.Two-hundred male and female outpatients aged 19-65 years with mild to moderate hypertension (stage I or II, Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure 7 guidelines) entered this 12-week, open-label study. All subjects received quinapril 20 mg/day for 6 weeks. If BP targets were achieved at week 6, responders were maintained on 20 mg/day; if BP targets were not achieved, non
Atorvastatin and quinapril inhibit blood coagulation in patients with coronary artery disease following 28 days of therapy. We evaluated the antithrombotic effects of statins and angiotensin-converting enzyme inhibitor (ACEI) drugs in patients with coronary artery disease (CAD).Blood coagulation at the site of microvascular injury was assessed in 26 males with CAD before and after treatment with quinapril (10 mg day-1; n=13) or atorvastatin (40 mg day-1; n=13) for 4 weeks and an additional 4 (...) weeks of combined therapy (quinapril+atorvastatin). Rates of prothrombin and factor V activation (FVa), fibrinogen (Fbg) cleavage and FVa inactivation showed that both quinapril and atorvastatin decreased the rates of: formation of thrombin B-chain (by 30.6%, P=0.007; and by 34.3%, P=0.003), formation of thrombin-antithrombin complexes (by 30.4%, P=0.0002; and by 40%, P=0.001), FV activation (by 19.1%, P=0.03; and by 21.8%, P=0.005) and Fbg depletion (by 29.2%, P=0.004; and by 32.7%, P=0.001
Amlodipine added to quinapril vs quinapril alone for the treatment of hypertension in diabetes: the Amlodipine in Diabetes (ANDI) trial. This randomized, comparative, parallel-group trial investigated strategies of blood pressure (BP)-lowering in patients with diabetes and hypertension. Patients not reaching goal BP (<130/80 mm Hg) after 4-week open-label treatment with quinapril 20 mg/d (n=374) received 40 mg/d quinapril (n=167) or 20 mg/d quinapril plus amlodipine besylate (5 mg/d; n=162 (...) . Treatments were well tolerated; fewer than 3% of patients in any group discontinued due to treatment-emergent or treatment-related adverse events. In diabetic hypertensive patients, 20 mg/d quinapril plus 5 mg/d amlodipine besylate was a more effective BP-lowering strategy than monotherapy with 40 mg/d quinapril.
The role of quinapril in the presence of a weight loss regimen: endothelial function and markers of obesity in patients with the metabolic syndrome. Forty-four patients with the metabolic syndrome were placed on a reduced-calorie and reduced-fat regimen to lose weight throughout a 56-week period. The patients were treated in a crossover fashion with placebo and the angiotensin-converting enzyme inhibitor quinapril for 24 weeks each. The study measured endothelial-dependent flow-mediated (...) dilation plus serum obesity markers of adiponectin and leptin. Metabolic parameters improved after 56 weeks. Serum adiponectin level increased by 18% (P<.05 vs baseline) and serum leptin level decreased by 16% with placebo (P<.05 vs baseline). These findings were potentiated further in the quinapril group. In comparison with baseline, flow-mediated dilation was increased by 13% in the placebo group (P=.055 vs baseline) and by 43% in the quinapril group (P<.001 vs baseline and placebo). These findings