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The Impact of Azilsartan Medoxomil Treatment (Capsule Formulation) at Doses Ranging From 10 to 80 mg: Significant, Rapid Reductions in Clinic Diastolic and Systolic Blood Pressure.

ABSTRACT: In this phase 2, multicenter, parallel-group, double-blind, dose-ranging study, hypertensive adults (n=449) were randomized to receive one of five doses of a capsule formulation of azilsartan medoxomil (AZL-M; 5, 10, 20, 40, 80 mg), olmesartan medoxomil (OLM) 20 mg, or placebo once daily. The primary endpoint was change in trough clinic diastolic blood pressure (DBP) at week 8. AZL-M provided rapid statistically and clinically significant reductions in DBP and systolic blood pressure (SBP) vs placebo at all doses except 5 mg. Placebo-subtracted changes were greatest with the 40 mg dose (DBP, -5.7 mm Hg; SBP, -12.3 mm Hg). Clinic changes with AZL-M (all doses) were statistically indistinguishable vs OLM, although there were greater reductions with AZL-M 40 mg using 24-hour ambulatory blood pressure. Adverse event frequency was similar in the AZL-M and placebo groups. Based on these and other findings, subsequent trials investigated the commercial AZL-M tablet in the dose range of 20 to 80 mg/d.

SUBMITTER: Perez A

PROVIDER: S-EPMC8031072 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Efficacy and safety of azilsartan medoxomil/chlortalidone fixed-dose combination in hypertensive patients uncontrolled on azilsartan medoxomil alone: A randomized trial.

Project description:Patients with grade 2-3 essential hypertension and postplacebo mean clinic systolic blood pressure (SBP) 160-190 mm Hg and 24-hour SBP 140-175 mm Hg by ambulatory blood pressure monitoring (ABPM) received 40 mg azilsartan medoxomil (AZL-M) monotherapy for 4 weeks. "Nonresponders" were then randomized to 8 weeks of double-blind treatment with AZL-M 40 mg, AZL-M/chlortalidone (CLD) 40/25, or AZL-M/CLD 40/12.5 mg. After 8 weeks, mean clinic SBP change was -21.1 (±1.04) mm Hg for AZL-M/CLD 40/25 mg, -15.8 (±1.08) mm Hg for AZL-M/CLD 40/12.5 mg, and -6.4 (±1.05) mm Hg for AZL-M 40 mg (P < 0.001 for both AZL-M/CLD vs AZL-M, ANCOVA). Drug discontinuation rates were 8.9% (AZL-M/CLD 40/25 mg), 7.5% (AZL-M 40 mg), and 3.9% (AZL-M/CLD 40/12.5 mg). Creatinine increased in 8.1% (AZL-M/CLD 40/25), 3.1% (AZL-M/CLD 40/12.5 mg), and 3.0% (AZL-M 40 mg) of patients. AZL-M/CLD was effective and well tolerated in patients not achieving blood pressure targets with AZL-M.

| S-EPMC8030929 | biostudies-literature

Comparison of long-term safety of fixed-dose combinations azilsartan medoxomil/chlorthalidone vs olmesartan medoxomil/hydrochlorothiazide.

Project description:This 52-week, randomized, open-label study evaluated long-term safety/tolerability of fixed-dose combination azilsartan medoxomil/chlorthalidone (AZL-M/CLD) vs fixed-dose combination olmesartan medoxomil/hydrochlorothiazide (OLM/HCTZ) in patients with essential hypertension (stage 2; clinic systolic blood pressure 160-190 mm Hg). Initial AZL-M/CLD 40/12.5 mg/d (n=418) or OLM/HCTZ 20/12.5 mg/d (n=419) could be uptitrated during weeks 4 to 52 (AZL-M/CLD to 80/25 mg; OLM/HCTZ to 40/25 mg [United States] or 20/25 mg [Europe]) to meet blood pressure targets. Treatment-emergent adverse events/serious adverse events occurred in 78.5%/5.7% of patients taking AZL-M/CLD vs 76.4%/6.2% taking OLM/HCTZ. The most frequent adverse events were dizziness (16.3% vs 12.6%), blood creatinine increase (21.5% vs 8.6%), headache (7.4% vs 11.0%), and nasopharyngitis (12.2% vs 11.5%). Hypokalemia was uncommon (1.0% vs 0.7%). Greater blood pressure reductions with AZL-M/CLD by week 2 were maintained throughout the study, despite less uptitration (32.3% vs 48.9% with OLM/HCTZ). Fixed-dose combination AZL-M/CLD showed an encouraging benefit-risk profile when used per standard clinical practice in a titrate-to-target strategy.

| S-EPMC8031288 | biostudies-literature

Long-term efficacy and tolerability of azilsartan medoxomil/chlorthalidone vs olmesartan medoxomil/hydrochlorothiazide in chronic kidney disease.

Project description:An open-label, long-term study evaluated safety and tolerability of azilsartan medoxomil/chlorthalidone (AZL-M/CLD) vs olmesartan/hydrochlorothiazide (OLM/HCTZ) in hypertensive participants with stage 3 chronic kidney disease. Initial therapy was AZL-M/CLD 20/12.5 mg (n = 77) or OLM/HCTZ 20/12.5 mg (n = 76), but could be up-titrated (AZL-M/CLD to 40/25 mg; OLM/HCTZ to 40/25 mg [US] or 20/25 mg [Europe]) with other agents added during weeks 4-52. Primary endpoint was proportion of participants with ≥ 1 adverse event (AE) through week 52. Baseline demographics were similar. AEs did not differ between groups (88.3%, AZL-M/CLD vs 76.3%, OLM/HCTZ; P = .058). AZL-M/CLD showed greater systolic BP reductions after initial dosing (P = .037) but not during long-term follow-up (P = .588). A greater proportion of participants up-titrated to the highest dose with OLM/HCTZ (48.7%) vs AZL-M/CLD (29.9%) (P = .021) and were taking additional antihypertensive medications (26.3% vs 16.9%). Both AZL-M/CLD and OLM/HCTZ showed similar efficacy and tolerability.

| S-EPMC8031057 | biostudies-literature

A randomized titrate-to-target study comparing fixed-dose combinations of azilsartan medoxomil and chlorthalidone with olmesartan and hydrochlorothiazide in stage-2 systolic hypertension.

Project description:BACKGROUND:Azilsartan medoxomil (AZL-M), an angiotensin II receptor blocker, has been developed in fixed-dose combinations (FDCs) with chlorthalidone (CTD). OBJECTIVE/METHODS:We compared FDCs of AZL-M/CTD 20/12.5 mg once daily titrated to 40/25 mg if needed or AZL-M/CTD 40/12.5 mg once daily titrated to 80/25 mg if needed with an olmesartan medoxomil (OLM)-hydrochlorothiazide (HCTZ) 20/12.5 mg FDC once daily titrated to 40/25 mg if needed in a randomized, double-blind, 8-week study of 1085 participants with clinic SBP 160-190 mmHg and DBP 119 mmHg or less. Titration to higher doses occurred at week 4 if BP was at least 140/90 mmHg (≥130/80 mmHg if diabetes or chronic kidney disease). The primary endpoint was change from baseline in clinic SBP; 24-h ambulatory BP monitoring was also measured. RESULTS:Greater reductions in clinic SBP from a baseline of 165 mmHg were observed (P < 0.001) in both AZL-M/CTD arms (-37.6 and -38.2 mmHg) versus OLM/HCTZ (-31.5 mmHg), despite greater dose titration in the OLM/HCTZ group. At 8 weeks, both AZL-M/CTD FDCs reduced 24-h SBP more than OLM/HCTZ (-26.4 and -27.9 versus -20.7 mmHg; both P < 0.001), and higher proportions in both AZL-M/CTD groups achieved target BP compared with the OLM/HCTZ group (69.4 and 68.9 versus 54.7%, both P < 0.001). Adverse events leading to drug discontinuation occurred in 6.2, 9.5, and 3.1% with the AZL-M/CTD lower and higher doses, and OLM/HCTZ, respectively. CONCLUSION:This large, titration-to-target BP study demonstrated AZL-M/CTD FDCs to have superior antihypertensive efficacy compared with the maximum approved dose of OLM/HCTZ.

| S-EPMC5862000 | biostudies-literature

Effects of combining azilsartan medoxomil with amlodipine in patients with stage 2 hypertension.

Project description:ObjectiveThe aim of the study was to measure the effects on blood pressure (BP) of the angiotensin receptor blocker azilsartan medoxomil, in 40 and 80 mg doses, combined with 5 mg of the calcium channel blocker amlodipine and to compare these effects with placebo plus amlodipine 5 mg.MethodsThis was a randomized, controlled, double-blind study of 6 weeks' duration in 566 patients with stage 2 hypertension. The primary endpoint was 24-h systolic BP by ambulatory monitoring.ResultsThe mean age of the participants was 58 years; men and women were equally represented, and baseline 24-h BP (153-154/93 mmHg) and clinic BP (165-166/94-95 mmHg) were similar across the three treatment groups. After 6 weeks, 24-h BP decreased by 25/15 mmHg in both the azilsartan medoxomil/amlodipine 40/5 and 80/5 mg groups. These reductions were each greater than the 14/8 mmHg decrease with placebo plus amlodipine 5 mg (P≤0.001 for both comparisons). All treatments were well tolerated, and adverse events did not increase with the azilsartan medoxomil doses. Edema or fluid retention was less common in both combination groups (2.6 and 2.7%) than with placebo plus amlodipine (7.6%).ConclusionCoadministration of azilsartan medoxomil with amlodipine was well tolerated and led to meaningful additional BP reductions compared with placebo plus amlodipine.

| S-EPMC3966914 | biostudies-literature

A randomized trial of the efficacy and safety of azilsartan medoxomil combined with chlorthalidone.

Project description:INTRODUCTION:We measured the effects of azilsartan medoxomil co-administered with chlorthalidone 25 mg in stage 2 hypertension. METHODS:Azilsartan medoxomil 40 or 80 mg plus chlorthalidone were compared with placebo plus chlorthalidone once daily in a randomized, double-blind, 6-week trial. The primary endpoint was change from baseline in 24-hour mean systolic blood pressure by ambulatory blood pressure monitoring. RESULTS:Patients ( N=551; mean age 59 years; 51.7% men) were randomly assigned to placebo plus chlorthalidone ( n=184), azilsartan medoxomil 40 mg plus chlorthalidone ( n=185), or azilsartan medoxomil 80 mg plus chlorthalidone ( n=182). Baseline systolic blood pressures were similar among groups. After 6 weeks, least squares mean (standard error) reductions with azilsartan medoxomil 40 mg and 80 mg plus chlorthalidone were similar in magnitude (-31.7 (1.0) and -31.3 (1.0) mmHg, respectively), but greater than chlorthalidone alone (-15.9 (1.0) mmHg). Hypotension and serum creatinine elevations were more frequent with azilsartan medoxomil plus chlorthalidone than chlorthalidone alone (reversed with drug discontinuation). Notably, plasma potassium reduction of 0.43 meq/L with chlorthalidone was attenuated to 0.13 and 0.05 meq/L by azilsartan medoxomil 40 mg and 80 mg, respectively. CONCLUSION:Azilsartan medoxomil 40 mg or 80 mg plus chlorthalidone 25 mg was significantly more efficacious than chlorthalidone alone in reducing blood pressure and was well tolerated. Clinicaltrial.gov , https://clinicaltrials.gov/ct2/show/NCT00591773 , NCT00591773.

| S-EPMC6122257 | biostudies-literature

The comparative effects of azilsartan medoxomil and olmesartan on ambulatory and clinic blood pressure.

Project description:The current study assesses the antihypertensive efficacy and safety of the investigational angiotensin receptor blocker (ARB), azilsartan medoxomil (AZL-M), compared with placebo and the ARB olmesartan medoxomil (OLM-M). This randomized, double-blind, placebo-controlled, multicenter study assessed change from baseline in mean 24-hour ambulatory systolic blood pressure (SBP) following 6 weeks of treatment. Patients with primary hypertension (n=1275) and baseline 24-hour mean ambulatory systolic pressure ≥ 130 mm Hg and ≤ 170 mm Hg were studied; 142 received placebo and the remainder received 20 mg, 40 mg, or 80 mg AZL-M or 40 mg OLM-M. Mean age of participants was 58 ± 11 years, baseline mean 24-hour SBP was 146 mm Hg. Dose-dependent reductions in 24-hour mean SBP at study end occurred in all AZL-M groups. Reduction in 24-hour mean SBP was greater with AZL-M 80 mg than OLM-M 40 mg by 2.1 mm Hg (95% confidence interval, -4.0 to -0.1; P=.038), while AZL-M 40 mg was noninferior to OLM-M 40 mg. The side effect profiles of both ARBs were similar to placebo. AZL-M is well tolerated and more efficacious at its maximal dose than the highest dose of OLM-M.

| S-EPMC8673073 | biostudies-literature

Evaluation of the angiotensin II receptor blocker azilsartan medoxomil in African-American patients with hypertension.

Project description:The efficacy and safety of azilsartan medoxomil (AZL-M) were evaluated in African-American patients with hypertension in a 6-week, double-blind, randomized, placebo-controlled trial, for which the primary end point was change from baseline in 24-hour mean systolic blood pressure (BP). There were 413 patients, with a mean age of 52 years, 57% women, and baseline 24-hour BP of 146/91 mm Hg. Treatment differences in 24-hour systolic BP between AZL-M 40 mg and placebo (-5.0 mm Hg; 95% confidence interval, -8.0 to -2.0) and AZL-M 80 mg and placebo (-7.8 mm Hg; 95% confidence interval, -10.7 to -4.9) were significant (P≤.001 vs placebo for both comparisons). Changes in the clinic BPs were similar to the ambulatory BP results. Incidence rates of adverse events were comparable among the treatment groups, including those of a serious nature. In African-American patients with hypertension, AZL-M significantly reduced ambulatory and clinic BPs in a dose-dependent manner and was well tolerated.

| S-EPMC8031359 | biostudies-literature

Efficacy and safety of azilsartan medoxomil, an angiotensin receptor blocker, in Korean patients with essential hypertension.

Project description:BackgroundThis was a phase 3, randomized, double-blind, placebo-controlled study.MethodsAdult Korean patients with essential hypertension and a baseline mean sitting clinic systolic blood pressure (scSBP) ≥150 and ≤180 mmHg were randomized to 6-week treatment with placebo (n = 65), azilsartan medoxomil (AZL-M) 40 mg (n = 132), or AZL-M 80 mg (n = 131). The primary endpoint was the change from baseline to week 6 in trough scSBP.ResultsThe least-squares mean (standard error) change from baseline in trough scSBP in the placebo, AZL-M 40-mg, and 80-mg groups at week 6 were - 8.8 (2.00), - 22.1 (1.41), and - 23.7 (1.40) mmHg, respectively (p < 0.001 for AZL-M 40 and 80 mg vs placebo). No clinically meaningful heterogeneity in efficacy was observed between subgroups (age, sex, diabetes status) and the overall population. Treatments were well tolerated and adverse events were similar between groups.ConclusionsResults of this study confirm a positive benefit-risk profile of AZL-M for essential hypertension in Korean adults.Trial registrationClinicaltrial.gov; identifier number: NCT02203916. Registered July 28, 2014 (retrospectively registered).

| S-EPMC5804062 | biostudies-literature

Comparison of the novel angiotensin II receptor blocker azilsartan medoxomil vs valsartan by ambulatory blood pressure monitoring.

Project description:Azilsartan medoxomil (AZL-M) is a unique angiotensin II receptor blocker (ARB) under development for the treatment of hypertension. To compare this ARB with another in the class, the authors studied the effects of AZL-M and valsartan (VAL) in 984 patients with primary hypertension in a randomized, double-blind, multicenter study using ambulatory and clinic blood pressure (BP) measurements. The primary end point was change from baseline in 24-hour mean ambulatory systolic BP following 24 weeks of treatment. Hierarchical analysis testing for noninferiority was followed by superiority testing of AZL-M (80 mg then 40 mg) vs VAL. The mean age of participants was 58 years, 52% were men, and 15% were black. Baseline 24-hour mean systolic BP was similar (approximately 145.6 mm Hg) in each group. AZL-M 40 mg and 80 mg lowered 24-hour mean systolic BP (-14.9 mm Hg and -15.3 mm Hg, respectively) more than VAL 320 mg (-11.3 mm Hg; P<.001 for 40-mg and 80-mg comparisons vs VAL). Clinic systolic BP reductions were consistent with the ambulatory results (-14.9 mm Hg for AZL-M 40 mg and -16.9 mm Hg for AZL-M 80 mg vs -11.6 mm Hg for VAL; P=.015 and P<.001, respectively). The reductions in 24-hour mean and clinic diastolic BPs were also greater with both doses of AZL-M than with VAL (P≤.001 for all comparisons). Small, reversible changes in serum creatinine occurred more often with AZL-M than with VAL; otherwise, safety and tolerability parameters were similar among the three groups. These data demonstrate that AZL-M across the effective dose range had superior efficacy to VAL at its maximal recommended dose without any meaningful increase in adverse events. These findings suggest that AZL-M could provide higher rates of hypertension control compared with other ARBs in the class.

| S-EPMC8108745 | biostudies-literature

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