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Efficacy and Safety of Azilsartan Medoxomil Combined With Chlorthalidone in Participants With Moderate to Severe Hypertension

A Phase 3, Double-Blind, Randomized, Factorial, Efficacy and Safety Study of TAK 491 Plus Chlorthalidone Fixed-Dose Combination in Participants With Moderate to Severe Hypertension

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00847626
Enrollment
1711
Registered
2009-02-19
Start date
2009-01-31
Completion date
2010-07-31
Last updated
2012-02-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hypertension

Keywords

Hypertensive, Blood Pressure, High, Vascular Disease, Cardiovascular Disease, Drug Therapy

Brief summary

The purpose of this study is to determine the efficacy and safety of azilsartan medoxomil combined with chlorthalidone, once daily (QD), in participants with moderate to severe hypertension.

Detailed description

According to the World Health Organization (WHO), hypertension is the most common attributable cause of preventable death in developed nations, as uncontrolled hypertension greatly increases the risk of cardiovascular disease, cerebrovascular disease, and renal failure. As the population ages, the prevalence of hypertension will continue to increase if broad and effective preventive measures are not implemented. Despite the availability of antihypertensive agents, hypertension remains inadequately controlled; only about one third of patients continue to maintain control successfully. Although most antihypertensive agents are effective at the appropriate dose, the majority have side effects that limit their use. As a class, angiotensin II receptor blockers generally are considered more tolerable than other classes of antihypertensive agents. TAK-491 (azilsartan medoxomil) is an angiotensin II receptor blocker that is being evaluated by Takeda to treat essential hypertension. Treatments for essential hypertension commonly include use of a thiazide-like diuretic, either alone or as part of combination treatment. This study is designed to compare the antihypertensive effect and the safety and tolerability of the azilsartan medoxomil plus chlorthalidone fixed-dose combination product (TAK 491CLD FDC) with azilsartan monotherapy and chlorthalidone monotherapy during 8 weeks of treatment. Participants in this study will be randomized to receive one of 11 possible dosing combinations of azilsartan medoxomil , chlorthalidone and placebo over an 8 week period. The total duration of the study will be approximately 13 weeks. Participants will make 12 visits to the clinic. Each participant will also be contacted by telephone 14 days after last dose of study drug for a follow-up assessment.

Interventions

Azilsartan medoxomil 20 mg and chlorthalidone 12.5 mg combination tablets, orally, once daily for up to 8 weeks

DRUGChlorthalidone

Azilsartan medoxomil placebo and chlorthalidone 12.5 mg combination tablets, orally, once daily for up to 8 weeks

Azilsartan medoxomil 20 mg and chlorthalidone placebo combination tablets, orally, once daily for up to 8 weeks

Sponsors

Takeda
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Is treated with antihypertensive therapy and has a post-washout mean sitting clinic systolic blood pressure greater than or equal to 160 and less than or equal to 190 mm Hg on the day prior to randomization, or the participant has not received antihypertensive treatment within 28 days prior to Screening and has a mean sitting clinic systolic blood pressure greater than or equal to 160 and less than or equal to 190 mm Hg at the Screening Visit and on the day prior to randomization. 2. Females of childbearing potential who are sexually active must agree to use adequate contraception, and can neither be pregnant nor lactating from Screening throughout the duration of the study. 3. Has clinical laboratory test results within the reference range for the testing laboratory or the investigator does not consider the results to be clinically significant. 4. Is willing to discontinue current antihypertensive medications on Day -21 or on Day -28 if on amlodipine or chlorthalidone.

Exclusion criteria

1. Has a mean sitting clinic diastolic blood pressure greater than 119 mm Hg on the day prior to randomization. 2. Has a baseline 24-hour ambulatory blood pressure measurement reading of insufficient quality. 3. Has works a night (third) shift (defined as 11 PM \[2300\] to 7 AM \[0700\]). 4. Has an upper arm circumference less than 24 cm or greater than 42 cm. 5. Has is noncompliant with study medication during the placebo run-in period. 6. Has secondary hypertension of any etiology. 7. Has recent history of myocardial infarction, heart failure, unstable angina, coronary artery bypass graft, percutaneous coronary intervention, hypertensive encephalopathy, cerebrovascular accident, or transient ischemic attack. 8. Has clinically significant cardiac conduction defects. 9. Has hemodynamically significant left ventricular outflow obstruction due to aortic valvular disease. 10. Has severe renal dysfunction or disease. 11. Has known or suspected unilateral or bilateral renal artery stenosis. 12. Has a history of cancer that has not been in remission for at least 5 years prior to the first dose of study drug. 13. Has poorly controlled type 1 or type 2 diabetes mellitus at Screening. 14. Has hypokalemia or hyperkalemia. 15. Has an alanine aminotransferase or aspartate aminotransferase level of greater than 2.5 times the upper limit of normal, active liver disease, or jaundice. 16. Has any other known serious disease or condition that would compromise safety, might affect life expectancy, or make it difficult to successfully manage and follow Has according to the protocol. 17. Has known hypersensitivity to angiotensin II receptor blockers, thiazide-type diuretics or other sulfonamide-derived compounds. 18. Has been randomized in a previous azilsartan medoxomil study. 19. Is currently participating in another investigational study or is receiving or has received any investigational compound within 30 days prior to Screening. 20. Has a history of drug abuse or a history of alcohol abuse within the past 2 years.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pooled Analysis)Baseline and Week 8.The change in trough systolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The trough is the average of all measurements recorded from 22 to 24 hours after dosing.
Change From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pairwise Analysis)Baseline and Week 8.The change in trough systolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The trough is the average of all measurements recorded from 22 to 24 hours after dosing.

Secondary

MeasureTime frameDescription
Change From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pairwise Analysis)Baseline and Week 8.The change in trough systolic blood pressure in black participants as measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The trough is the average of all measurements recorded from 22 to 24 hours after dosing.
Change From Baseline to Week 8 in Trough, Sitting, Clinic Diastolic Blood PressureBaseline and Week 8.The change in trough diastolic blood pressure measured at final visit or week 8 relative to baseline. Diastolic blood pressure is the average of the 3 serial trough clinic sitting diastolic blood pressure measurements.
Change From Baseline to Week 8 in the Mean Trough Diastolic Blood Pressure (22 to 24 Hours After Dosing), as Measured by Ambulatory Blood Pressure Monitoring.Baseline and Week 8.The change in trough diastolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The trough is the average of all measurements recorded from 22 to 24 hours after dosing.
Change From Baseline to Week 8 in the 24-hour Mean Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure MonitoringBaseline and Week 8.The change in 24-hour mean systolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The 24-hour mean is the average of all measurements recorded for 24 hours after dosing.
Change From Baseline to Week 8 in the 24-hour Mean Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure MonitoringBaseline and Week 8.The change in 24-hour mean diastolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The 24-hour mean is the average of all measurements recorded for 24 hours after dosing.
Change From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.Baseline and Week 8.The change in daytime (6am to 10pm) mean systolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. Daytime mean is the average of all measurements recorded between the hours of 6 am and 10 pm.
Change From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.Baseline and Week 8.The change in daytime (6am to 10pm) mean diastolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. Daytime mean is the average of all measurements recorded between the hours of 6 am and 10 pm.
Change From Baseline to Week 8 in Trough, Sitting, Clinic Systolic Blood PressureBaseline and Week 8The change in trough systolic blood pressure measured at final visit or week 8 relative to baseline. Systolic blood pressure is the arithmetic mean of the 3 serial trough sitting systolic blood pressure measurements.
Change From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.Baseline and Week 8.The change in nighttime (12am to 6am) mean diastolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. Nighttime mean is the average of all measurements recorded between the hours of 12 am and 6 am.
Change From Baseline to Week 8 in the Mean Systolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.Baseline and Week 8The change in the 12-hour mean systolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The 12-hour mean is the average of all measurements recorded in the first 12 hours after dosing.
Change From Baseline to Week 8 in the Mean Diastolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.Baseline and Week 8.The change in the 12-hour mean diastolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The 12-hour mean is the average of all measurements recorded in the first 12 hours after dosing.
Percentage of Participants Who Achieve a Clinic Systolic Blood Pressure Response at Week 8, as Defined by Clinic Systolic Blood Pressure <140 mm Hg and/or a Reduction of ≥20 mm Hg From Baseline.Baseline and Week 8Percentage of participants who achieve a clinic systolic blood pressure response measured at week 8, defined as less than 140 mm Hg and/or reduction from baseline of greater than or equal to 20 mm Hg. Systolic blood pressure is the average of the 3 serial trough sitting clinic systolic blood pressure measurements.
Percentage of Participants Who Achieve a Clinic Diastolic Blood Pressure Response at Week 8, Defined as Clinic Diastolic Blood Pressure <90 mm Hg and/or a Reduction of ≥10 mm Hg From Baseline.Baseline and Week 8.Percentage of participants who achieve a clinic diastolic blood pressure response measured at week 8, defined as less than 90 mm Hg and/or reduction from baseline of greater than or equal to 10 mm Hg. Diastolic blood pressure is the average of the 3 serial trough sitting clinic diastolic blood pressure measurements.
Percentage of Participants Who Achieve Both a Clinic Systolic and Diastolic Blood Pressure Response at Week 8.Baseline and Week 8.Percentage of participants who achieve both a clinic systolic and diastolic blood pressure response measured at week 8, defined as systolic blood pressure less than 140 mm Hg and/or reduction from baseline of greater than or equal to 20 mm Hg AND diastolic blood pressure less than 90 mm Hg and/or reduction from baseline of greater than or equal to 10 mm Hg . Systolic/diastolic blood pressure is based on the average of the 3 serial trough clinic sitting systolic/diastolic blood pressure measurements.
Change From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.Baseline and Week 8.The change in nighttime (12am to 6am) mean systolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. Nighttime mean is the average of all measurements recorded between the hours of 12 am and 6 am.
Change From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pooled Analysis)Baseline and Week 8.The change in trough systolic blood pressure in black subjects measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The trough is the average of all measurements recorded from 22 to 24 hours after dosing.

Countries

Chile, Mexico, Peru, Russia, United States

Participant flow

Recruitment details

Participants enrolled at 175 investigative sites in Austria, Chile, Germany, Guatemala, Mexico, Netherlands, Peru, Poland, Russian Federation and the United States from 29 January 2009 to 10 July 2010.

Pre-assignment details

Participants with moderate to severe essential hypertension were enrolled in one of 11, once-daily (QD) treatment groups.

Participants by arm

ArmCount
Azilsartan Medoxomil 20 mg/Chlorthalidone 12.5 mg QD
Azilsartan medoxomil 20 mg and chlorthalidone 12.5 mg combination tablets, orally, once daily for up to 8 weeks.
156
Azilsartan Medoxomil 20 mg/Chlorthalidone 25 mg QD
Azilsartan medoxomil 20 mg and chlorthalidone 25 mg combination tablets, orally, once daily for up to 8 weeks.
154
Azilsartan Medoxomil 40 mg/Chlorthalidone 12.5 mg QD
Azilsartan 40 mg and chlorthalidone 12.5 mg combination tablets, orally, once daily for up to 8 weeks.
147
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QD
Azilsartan medoxomil 40 mg and chlorthalidone 25 mg combination tablets, orally, once daily for up to 8 weeks.
156
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QD
Azilsartan 80 mg and chlorthalidone 12.5 mg combination tablets, orally, once daily for up to 8 weeks.
153
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QD
Azilsartan medoxomil 80 mg and chlorthalidone 25 mg combination tablets, orally, once daily for up to 8 weeks.
162
Chlorthalidone 12.5 mg QD
Azilsartan medoxomil placebo and chlorthalidone 12.5 mg combination tablets, orally, once daily for up to 8 weeks.
157
Chlorthalidone 25 mg QD
Azilsartan medoxomil placebo and chlorthalidone 25 mg combination tablets, orally, once daily for up to 8 weeks.
159
Azilsartan Medoxomil 20 mg QD
Azilsartan medoxomil 20 mg and chlorthalidone placebo combination tablets, orally, once daily for up to 8 weeks.
155
Azilsartan Medoxomil 40 mg QD
Azilsartan medoxomil 40 mg and chlorthalidone placebo combination tablets, orally, once daily for up to 8 weeks.
153
Azilsartan Medoxomil 80 mg QD
Azilsartan medoxomil 80 mg and chlorthalidone placebo combination tablets, orally, once daily for up to 8 weeks.
162
Total1,714

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010
Overall StudyAdverse Event1010619112246366
Overall StudyLack of Efficacy31012062517
Overall StudyLost to Follow-up01110313101
Overall StudyOther15412223113
Overall StudyProtocol Violation21211111011
Overall StudyWithdrawal by Subject553812984452

Baseline characteristics

CharacteristicAzilsartan Medoxomil 40 mg/Chlorthalidone 12.5 mg QDAzilsartan Medoxomil 20 mg/Chlorthalidone 12.5 mg QDAzilsartan Medoxomil 20 mg/Chlorthalidone 25 mg QDAzilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDAzilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDAzilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDChlorthalidone 12.5 mg QDChlorthalidone 25 mg QDAzilsartan Medoxomil 20 mg QDAzilsartan Medoxomil 40 mg QDAzilsartan Medoxomil 80 mg QDTotal
Age Continuous56.2 years
STANDARD_DEVIATION 10.5
58.2 years
STANDARD_DEVIATION 10.57
57.4 years
STANDARD_DEVIATION 11.13
57.4 years
STANDARD_DEVIATION 11.07
55.8 years
STANDARD_DEVIATION 11.22
57.6 years
STANDARD_DEVIATION 11.04
57.3 years
STANDARD_DEVIATION 11.3
56.2 years
STANDARD_DEVIATION 10.04
57.3 years
STANDARD_DEVIATION 11.04
57.8 years
STANDARD_DEVIATION 10.28
57.3 years
STANDARD_DEVIATION 10.87
57.2 years
STANDARD_DEVIATION 10.82
Age, Customized
<45 years
17 participants15 participants16 participants21 participants25 participants19 participants21 participants18 participants18 participants17 participants16 participants203 participants
Age, Customized
≥65 years
30 participants43 participants41 participants42 participants38 participants39 participants39 participants33 participants40 participants38 participants39 participants422 participants
Age, Customized
Between 45 to 64 years
100 participants98 participants97 participants93 participants90 participants104 participants97 participants108 participants97 participants98 participants107 participants1089 participants
Body Mass Index (BMI)31.8 kg/m^2
STANDARD_DEVIATION 6.57
32.2 kg/m^2
STANDARD_DEVIATION 5.73
31.0 kg/m^2
STANDARD_DEVIATION 5.65
32.2 kg/m^2
STANDARD_DEVIATION 6.01
31.4 kg/m^2
STANDARD_DEVIATION 5.84
31.5 kg/m^2
STANDARD_DEVIATION 6.28
31.2 kg/m^2
STANDARD_DEVIATION 5.85
31.2 kg/m^2
STANDARD_DEVIATION 5.78
31.3 kg/m^2
STANDARD_DEVIATION 5.23
31.0 kg/m^2
STANDARD_DEVIATION 5.85
30.8 kg/m^2
STANDARD_DEVIATION 6.28
31.4 kg/m^2
STANDARD_DEVIATION 5.92
Estimated glomerular filtration rate (eGFR)
≥0 and <30
0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants1 participants0 participants1 participants
Estimated glomerular filtration rate (eGFR)
≥30 and <60
6 participants13 participants14 participants8 participants6 participants10 participants12 participants9 participants11 participants11 participants8 participants108 participants
Estimated glomerular filtration rate (eGFR)
≥60 and <90
93 participants95 participants90 participants97 participants109 participants110 participants101 participants100 participants94 participants95 participants99 participants1083 participants
Estimated glomerular filtration rate (eGFR)
≥90
48 participants48 participants50 participants51 participants38 participants42 participants44 participants50 participants49 participants46 participants55 participants521 participants
Estimated glomerular filtration rate (eGFR)
Missing
0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants1 participants0 participants0 participants1 participants
Ethnicity (NIH/OMB)
Hispanic or Latino
11 Participants10 Participants19 Participants15 Participants19 Participants15 Participants17 Participants19 Participants20 Participants17 Participants15 Participants177 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
76 Participants90 Participants75 Participants85 Participants71 Participants87 Participants84 Participants86 Participants77 Participants80 Participants86 Participants897 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
60 Participants56 Participants60 Participants56 Participants63 Participants60 Participants56 Participants54 Participants58 Participants56 Participants61 Participants640 Participants
Height167.1 cm
STANDARD_DEVIATION 11.44
166.3 cm
STANDARD_DEVIATION 11.71
166.6 cm
STANDARD_DEVIATION 10.85
166.8 cm
STANDARD_DEVIATION 11.64
166.6 cm
STANDARD_DEVIATION 10.81
165.4 cm
STANDARD_DEVIATION 10.79
168.3 cm
STANDARD_DEVIATION 11.07
166.1 cm
STANDARD_DEVIATION 11.36
166.4 cm
STANDARD_DEVIATION 10.65
167.7 cm
STANDARD_DEVIATION 12.27
167.1 cm
STANDARD_DEVIATION 11.85
166.8 cm
STANDARD_DEVIATION 11.32
Race (NIH/OMB)
American Indian or Alaska Native
13 participants9 participants13 participants13 participants12 participants16 participants14 participants14 participants11 participants13 participants14 participants142 participants
Race (NIH/OMB)
Asian
4 participants4 participants3 participants4 participants2 participants3 participants1 participants7 participants1 participants1 participants4 participants34 participants
Race (NIH/OMB)
Black or African American
29 participants34 participants28 participants30 participants26 participants34 participants31 participants29 participants31 participants35 participants35 participants342 participants
Race (NIH/OMB)
More than one race
1 participants2 participants2 participants2 participants1 participants0 participants1 participants2 participants1 participants1 participants2 participants15 participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 participants0 participants1 participants0 participants0 participants0 participants1 participants0 participants0 participants0 participants0 participants2 participants
Race (NIH/OMB)
Unknown or Not Reported
0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants
Race (NIH/OMB)
White
102 participants111 participants112 participants111 participants114 participants109 participants111 participants111 participants113 participants105 participants111 participants1210 participants
Region of Enrollment
Austria
0 participants1 participants0 participants0 participants1 participants0 participants0 participants0 participants0 participants0 participants0 participants2 participants
Region of Enrollment
Chile
3 participants3 participants3 participants2 participants2 participants3 participants2 participants1 participants2 participants3 participants2 participants26 participants
Region of Enrollment
Germany
6 participants4 participants6 participants5 participants6 participants5 participants4 participants5 participants3 participants4 participants5 participants53 participants
Region of Enrollment
Guatemala
9 participants8 participants8 participants10 participants10 participants8 participants8 participants9 participants8 participants9 participants9 participants96 participants
Region of Enrollment
Mexico
11 participants10 participants11 participants9 participants12 participants11 participants11 participants8 participants13 participants11 participants12 participants119 participants
Region of Enrollment
Netherlands
6 participants6 participants7 participants5 participants7 participants5 participants6 participants6 participants6 participants6 participants7 participants67 participants
Region of Enrollment
Peru
13 participants11 participants12 participants12 participants12 participants14 participants12 participants11 participants13 participants12 participants12 participants134 participants
Region of Enrollment
Poland
7 participants8 participants8 participants8 participants8 participants8 participants7 participants8 participants8 participants7 participants8 participants85 participants
Region of Enrollment
Russian Federation
5 participants5 participants5 participants5 participants5 participants6 participants6 participants6 participants5 participants4 participants6 participants58 participants
Region of Enrollment
United States
87 participants100 participants94 participants100 participants90 participants102 participants101 participants105 participants97 participants97 participants101 participants1074 participants
Sex: Female, Male
Female
76 Participants86 Participants77 Participants85 Participants82 Participants100 Participants74 Participants90 Participants87 Participants68 Participants84 Participants909 Participants
Sex: Female, Male
Male
71 Participants70 Participants77 Participants71 Participants71 Participants62 Participants83 Participants69 Participants68 Participants85 Participants78 Participants805 Participants
Smoking Status
Current smoker
25 participants22 participants28 participants35 participants26 participants28 participants25 participants29 participants25 participants31 participants29 participants303 participants
Smoking Status
Ex-smoker
41 participants40 participants42 participants42 participants36 participants40 participants39 participants39 participants38 participants32 participants39 participants428 participants
Smoking Status
Never smoked
81 participants94 participants84 participants79 participants91 participants94 participants93 participants91 participants92 participants90 participants94 participants983 participants
Weight89.28 kg
STANDARD_DEVIATION 21.484
89.85 kg
STANDARD_DEVIATION 22.076
86.06 kg
STANDARD_DEVIATION 18.056
90.16 kg
STANDARD_DEVIATION 21.949
87.31 kg
STANDARD_DEVIATION 19.209
86.44 kg
STANDARD_DEVIATION 20.412
89.12 kg
STANDARD_DEVIATION 21.049
86.70 kg
STANDARD_DEVIATION 20.27
87.27 kg
STANDARD_DEVIATION 18.934
87.54 kg
STANDARD_DEVIATION 19.019
86.27 kg
STANDARD_DEVIATION 20.354
87.80 kg
STANDARD_DEVIATION 20.289

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
EG010
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
52 / 15655 / 15440 / 14674 / 15652 / 15367 / 16151 / 15653 / 16025 / 15536 / 15332 / 162
serious
Total, serious adverse events
3 / 1560 / 1541 / 1462 / 1562 / 1532 / 1610 / 1562 / 1602 / 1552 / 1533 / 162

Outcome results

Primary

Change From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pairwise Analysis)

The change in trough systolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The trough is the average of all measurements recorded from 22 to 24 hours after dosing.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pairwise Analysis)-22.9 mmHgStandard Error 1.19
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pairwise Analysis)-26.3 mmHgStandard Error 1.24
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pairwise Analysis)-24.4 mmHgStandard Error 1.24
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pairwise Analysis)-29.8 mmHgStandard Error 1.26
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pairwise Analysis)-26.3 mmHgStandard Error 1.28
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pairwise Analysis)-28.0 mmHgStandard Error 1.26
Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pairwise Analysis)-12.7 mmHgStandard Error 1.18
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pairwise Analysis)-15.9 mmHgStandard Error 1.16
Azilsartan Medoxomil 20 mg QDChange From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pairwise Analysis)-12.1 mmHgStandard Error 1.19
Azilsartan Medoxomil 40 mg QDChange From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pairwise Analysis)-12.8 mmHgStandard Error 1.17
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pairwise Analysis)-15.1 mmHgStandard Error 1.19
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-13.6, -7]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-13.7, -7]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-15.1, -8.4]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-17.3, -10.6]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-17.1, -10.3]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-15.4, -8.7]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-14.2, -7.6]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-17.6, -10.9]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-15, -8.3]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-20.4, -13.6]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-14.7, -7.8]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-16.2, -9.4]ANCOVA
Primary

Change From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pooled Analysis)

The change in trough systolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The trough is the average of all measurements recorded from 22 to 24 hours after dosing.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pooled Analysis)-28.9 mmHgStandard Error 0.89
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pooled Analysis)-15.9 mmHgStandard Error 1.16
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in Trough, Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring (Pooled Analysis)-15.1 mmHgStandard Error 1.19
Comparison: Analysis of covariance model (ANCOVA) using treatment as a fixed effect and baseline as a covariate was performed. Results for Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QD and Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QD pool were obtained using contrast with coefficients of 0.5 for Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QD and 0.5 for Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QD from the ANCOVA model.p-value: <0.00195% CI: [-15.8, -9.5]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed. Results for Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QD and Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QD pool were obtained using contrast with coefficients of 0.5 for Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QD and 0.5 for Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QD from the ANCOVA model.p-value: <0.00195% CI: [-16.7, -10.9]ANCOVA
Secondary

Change From Baseline to Week 8 in the 24-hour Mean Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring

The change in 24-hour mean diastolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The 24-hour mean is the average of all measurements recorded for 24 hours after dosing.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the 24-hour Mean Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-13.5 mmHgStandard Error 0.6
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the 24-hour Mean Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-15.0 mmHgStandard Error 0.62
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the 24-hour Mean Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-14.9 mmHgStandard Error 0.63
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the 24-hour Mean Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-17.3 mmHgStandard Error 0.64
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the 24-hour Mean Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-16.5 mmHgStandard Error 0.65
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the 24-hour Mean Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-15.9 mmHgStandard Error 0.64
Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the 24-hour Mean Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-5.6 mmHgStandard Error 0.59
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the 24-hour Mean Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-6.7 mmHgStandard Error 0.59
Azilsartan Medoxomil 20 mg QDChange From Baseline to Week 8 in the 24-hour Mean Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-6.8 mmHgStandard Error 0.6
Azilsartan Medoxomil 40 mg QDChange From Baseline to Week 8 in the 24-hour Mean Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-7.6 mmHgStandard Error 0.59
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the 24-hour Mean Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-8.8 mmHgStandard Error 0.6
Secondary

Change From Baseline to Week 8 in the 24-hour Mean Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring

The change in 24-hour mean systolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The 24-hour mean is the average of all measurements recorded for 24 hours after dosing.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the 24-hour Mean Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-24.0 mmHgStandard Error 0.97
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the 24-hour Mean Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-26.7 mmHgStandard Error 1.01
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the 24-hour Mean Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-26.1 mmHgStandard Error 1.01
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the 24-hour Mean Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-30.4 mmHgStandard Error 1.03
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the 24-hour Mean Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-27.9 mmHgStandard Error 1.04
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the 24-hour Mean Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-28.1 mmHgStandard Error 1.03
Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the 24-hour Mean Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-10.9 mmHgStandard Error 0.96
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the 24-hour Mean Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-14.7 mmHgStandard Error 0.95
Azilsartan Medoxomil 20 mg QDChange From Baseline to Week 8 in the 24-hour Mean Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-11.7 mmHgStandard Error 0.97
Azilsartan Medoxomil 40 mg QDChange From Baseline to Week 8 in the 24-hour Mean Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-12.6 mmHgStandard Error 0.96
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the 24-hour Mean Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring-15.3 mmHgStandard Error 0.97
Secondary

Change From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.

The change in daytime (6am to 10pm) mean diastolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. Daytime mean is the average of all measurements recorded between the hours of 6 am and 10 pm.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-13.7 mmHgStandard Error 0.64
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-15.6 mmHgStandard Error 0.66
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-15.1 mmHgStandard Error 0.66
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-17.6 mmHgStandard Error 0.67
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-16.8 mmHgStandard Error 0.69
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-16.2 mmHgStandard Error 0.67
Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-5.6 mmHgStandard Error 0.63
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-6.5 mmHgStandard Error 0.62
Azilsartan Medoxomil 20 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-6.8 mmHgStandard Error 0.64
Azilsartan Medoxomil 40 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-7.7 mmHgStandard Error 0.63
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-9.1 mmHgStandard Error 0.64
Secondary

Change From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.

The change in daytime (6am to 10pm) mean systolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. Daytime mean is the average of all measurements recorded between the hours of 6 am and 10 pm.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-24.4 mmHgStandard Error 1.01
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-27.7 mmHgStandard Error 1.05
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-26.7 mmHgStandard Error 1.06
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-31.2 mmHgStandard Error 1.07
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-28.4 mmHgStandard Error 1.09
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-28.5 mmHgStandard Error 1.07
Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-10.8 mmHgStandard Error 1
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-14.7 mmHgStandard Error 0.99
Azilsartan Medoxomil 20 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-11.7 mmHgStandard Error 1.01
Azilsartan Medoxomil 40 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-12.8 mmHgStandard Error 1
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the Mean Daytime (6 AM to 10 PM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-15.7 mmHgStandard Error 1.01
Secondary

Change From Baseline to Week 8 in the Mean Diastolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.

The change in the 12-hour mean diastolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The 12-hour mean is the average of all measurements recorded in the first 12 hours after dosing.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Diastolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-13.6 mmHgStandard Error 0.68
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Diastolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-15.6 mmHgStandard Error 0.71
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the Mean Diastolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-15.4 mmHgStandard Error 0.71
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Diastolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-17.8 mmHgStandard Error 0.72
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the Mean Diastolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-16.8 mmHgStandard Error 0.73
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Diastolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-16.2 mmHgStandard Error 0.72
Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the Mean Diastolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-5.3 mmHgStandard Error 0.67
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Diastolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-6.3 mmHgStandard Error 0.66
Azilsartan Medoxomil 20 mg QDChange From Baseline to Week 8 in the Mean Diastolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-6.8 mmHgStandard Error 0.68
Azilsartan Medoxomil 40 mg QDChange From Baseline to Week 8 in the Mean Diastolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-7.6 mmHgStandard Error 0.67
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the Mean Diastolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-9.2 mmHgStandard Error 0.68
Secondary

Change From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.

The change in nighttime (12am to 6am) mean diastolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. Nighttime mean is the average of all measurements recorded between the hours of 12 am and 6 am.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-12.8 mmHgStandard Error 0.71
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-13.5 mmHgStandard Error 0.73
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-14.4 mmHgStandard Error 0.74
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-16.2 mmHgStandard Error 0.75
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-15.8 mmHgStandard Error 0.76
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-14.9 mmHgStandard Error 0.75
Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-6.0 mmHgStandard Error 0.7
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-7.1 mmHgStandard Error 0.69
Azilsartan Medoxomil 20 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-6.9 mmHgStandard Error 0.7
Azilsartan Medoxomil 40 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-7.5 mmHgStandard Error 0.69
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Diastolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-8.0 mmHgStandard Error 0.71
Secondary

Change From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.

The change in nighttime (12am to 6am) mean systolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. Nighttime mean is the average of all measurements recorded between the hours of 12 am and 6 am.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-22.5 mmHgStandard Error 1.09
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-24.0 mmHgStandard Error 1.13
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-24.3 mmHgStandard Error 1.14
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-28.1 mmHgStandard Error 1.15
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-26.5 mmHgStandard Error 1.17
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-26.3 mmHgStandard Error 1.15
Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-11.3 mmHgStandard Error 1.08
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-14.4 mmHgStandard Error 1.06
Azilsartan Medoxomil 20 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-11.8 mmHgStandard Error 1.09
Azilsartan Medoxomil 40 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-11.8 mmHgStandard Error 1.08
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the Mean Nighttime (12 AM to 6 AM) Systolic Blood Pressure, as Measured by Ambulatory Blood Pressure Monitoring.-14.2 mmHgStandard Error 1.09
Secondary

Change From Baseline to Week 8 in the Mean Systolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.

The change in the 12-hour mean systolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The 12-hour mean is the average of all measurements recorded in the first 12 hours after dosing.

Time frame: Baseline and Week 8

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Systolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-24.6 mmHgStandard Error 1.07
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Systolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-28.0 mmHgStandard Error 1.11
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the Mean Systolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-27.1 mmHgStandard Error 1.12
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Systolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-31.7 mmHgStandard Error 1.13
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the Mean Systolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-28.5 mmHgStandard Error 1.15
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Systolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-28.7 mmHgStandard Error 1.13
Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the Mean Systolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-10.4 mmHgStandard Error 1.06
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Systolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-14.5 mmHgStandard Error 1.04
Azilsartan Medoxomil 20 mg QDChange From Baseline to Week 8 in the Mean Systolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-11.8 mmHgStandard Error 1.07
Azilsartan Medoxomil 40 mg QDChange From Baseline to Week 8 in the Mean Systolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-12.7 mmHgStandard Error 1.05
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the Mean Systolic Blood Pressure at 0 to 12 Hours After Dosing, as Measured by Ambulatory Blood Pressure Monitoring.-15.8 mmHgStandard Error 1.07
Secondary

Change From Baseline to Week 8 in the Mean Trough Diastolic Blood Pressure (22 to 24 Hours After Dosing), as Measured by Ambulatory Blood Pressure Monitoring.

The change in trough diastolic blood pressure measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The trough is the average of all measurements recorded from 22 to 24 hours after dosing.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Trough Diastolic Blood Pressure (22 to 24 Hours After Dosing), as Measured by Ambulatory Blood Pressure Monitoring.-13.3 mmHgStandard Error 0.8
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Trough Diastolic Blood Pressure (22 to 24 Hours After Dosing), as Measured by Ambulatory Blood Pressure Monitoring.-15.0 mmHgStandard Error 0.83
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the Mean Trough Diastolic Blood Pressure (22 to 24 Hours After Dosing), as Measured by Ambulatory Blood Pressure Monitoring.-13.5 mmHgStandard Error 0.83
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Trough Diastolic Blood Pressure (22 to 24 Hours After Dosing), as Measured by Ambulatory Blood Pressure Monitoring.-17.3 mmHgStandard Error 0.85
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the Mean Trough Diastolic Blood Pressure (22 to 24 Hours After Dosing), as Measured by Ambulatory Blood Pressure Monitoring.-16.5 mmHgStandard Error 0.86
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Trough Diastolic Blood Pressure (22 to 24 Hours After Dosing), as Measured by Ambulatory Blood Pressure Monitoring.-16.1 mmHgStandard Error 0.85
Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in the Mean Trough Diastolic Blood Pressure (22 to 24 Hours After Dosing), as Measured by Ambulatory Blood Pressure Monitoring.-6.5 mmHgStandard Error 0.79
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in the Mean Trough Diastolic Blood Pressure (22 to 24 Hours After Dosing), as Measured by Ambulatory Blood Pressure Monitoring.-7.5 mmHgStandard Error 0.78
Azilsartan Medoxomil 20 mg QDChange From Baseline to Week 8 in the Mean Trough Diastolic Blood Pressure (22 to 24 Hours After Dosing), as Measured by Ambulatory Blood Pressure Monitoring.-7.9 mmHgStandard Error 0.8
Azilsartan Medoxomil 40 mg QDChange From Baseline to Week 8 in the Mean Trough Diastolic Blood Pressure (22 to 24 Hours After Dosing), as Measured by Ambulatory Blood Pressure Monitoring.-7.3 mmHgStandard Error 0.79
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in the Mean Trough Diastolic Blood Pressure (22 to 24 Hours After Dosing), as Measured by Ambulatory Blood Pressure Monitoring.-8.9 mmHgStandard Error 0.8
Secondary

Change From Baseline to Week 8 in Trough, Sitting, Clinic Diastolic Blood Pressure

The change in trough diastolic blood pressure measured at final visit or week 8 relative to baseline. Diastolic blood pressure is the average of the 3 serial trough clinic sitting diastolic blood pressure measurements.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Diastolic Blood Pressure-14.4 mmHgStandard Error 0.72
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Diastolic Blood Pressure-15.5 mmHgStandard Error 0.72
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Diastolic Blood Pressure-15.6 mmHgStandard Error 0.74
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Diastolic Blood Pressure-17.0 mmHgStandard Error 0.72
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Diastolic Blood Pressure-16.9 mmHgStandard Error 0.73
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Diastolic Blood Pressure-18.5 mmHgStandard Error 0.71
Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Diastolic Blood Pressure-7.4 mmHgStandard Error 0.72
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Diastolic Blood Pressure-9.2 mmHgStandard Error 0.72
Azilsartan Medoxomil 20 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Diastolic Blood Pressure-6.7 mmHgStandard Error 0.72
Azilsartan Medoxomil 40 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Diastolic Blood Pressure-9.2 mmHgStandard Error 0.73
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Diastolic Blood Pressure-9.9 mmHgStandard Error 0.7
Secondary

Change From Baseline to Week 8 in Trough, Sitting, Clinic Systolic Blood Pressure

The change in trough systolic blood pressure measured at final visit or week 8 relative to baseline. Systolic blood pressure is the arithmetic mean of the 3 serial trough sitting systolic blood pressure measurements.

Time frame: Baseline and Week 8

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Systolic Blood Pressure-33.8 mmHgStandard Error 1.26
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Systolic Blood Pressure-37.0 mmHgStandard Error 1.26
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Systolic Blood Pressure-36.8 mmHgStandard Error 1.3
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Systolic Blood Pressure-39.5 mmHgStandard Error 1.25
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Systolic Blood Pressure-36.9 mmHgStandard Error 1.27
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Systolic Blood Pressure-40.1 mmHgStandard Error 1.24
Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Systolic Blood Pressure-21.1 mmHgStandard Error 1.25
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Systolic Blood Pressure-27.1 mmHgStandard Error 1.25
Azilsartan Medoxomil 20 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Systolic Blood Pressure-19.8 mmHgStandard Error 1.26
Azilsartan Medoxomil 40 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Systolic Blood Pressure-23.3 mmHgStandard Error 1.27
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in Trough, Sitting, Clinic Systolic Blood Pressure-24.2 mmHgStandard Error 1.23
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-16.2, -9.2]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-13.4, -6.4]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-19.2, -12.1]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-15.8, -8.9]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-19.3, -12.3]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-16.5, -9.5]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-17.5, -10.5]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-20.6, -13.7]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-17, -9.9]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-19.7, -12.7]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-16.3, -9.3]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed.p-value: <0.00195% CI: [-19.4, -12.6]ANCOVA
Secondary

Change From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pairwise Analysis)

The change in trough systolic blood pressure in black participants as measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The trough is the average of all measurements recorded from 22 to 24 hours after dosing.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pairwise Analysis)-27.2 mmHgStandard Error 3.21
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pairwise Analysis)-25.4 mmHgStandard Error 3.36
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pairwise Analysis)-21.5 mmHgStandard Error 3.21
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pairwise Analysis)-31.9 mmHgStandard Error 3.61
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pairwise Analysis)-24.8 mmHgStandard Error 3.71
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pairwise Analysis)-24.4 mmHgStandard Error 3.43
Chlorthalidone 12.5 mg QDChange From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pairwise Analysis)-12.2 mmHgStandard Error 3.22
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pairwise Analysis)-23.4 mmHgStandard Error 3.36
Azilsartan Medoxomil 20 mg QDChange From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pairwise Analysis)-10.7 mmHgStandard Error 3.1
Azilsartan Medoxomil 40 mg QDChange From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pairwise Analysis)-11.0 mmHgStandard Error 3.04
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pairwise Analysis)-9.9 mmHgStandard Error 2.97
Secondary

Change From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pooled Analysis)

The change in trough systolic blood pressure in black subjects measured at final visit or week 8 relative to baseline. Ambulatory blood pressure monitoring measures blood pressure at regular intervals throughout the day and night. The trough is the average of all measurements recorded from 22 to 24 hours after dosing.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pooled Analysis)-28.2 mmHgStandard Error 2.49
Chlorthalidone 25 mg QDChange From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pooled Analysis)-23.4 mmHgStandard Error 3.36
Azilsartan Medoxomil 80 mg QDChange From Baseline to Week 8 in Trough Systolic Blood Pressure as Measured by Ambulatory Blood Pressure Monitoring in Black Participants (Pooled Analysis)-9.9 mmHgStandard Error 2.97
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed. Results for Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QD and Azilsartan Medoxomil 80mg/Chlorthalidone 25 mg QD pool were obtained using contrast with coefficients of 0.5 for Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QD and 0.5 for Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QD from the ANCOVA model.p-value: 0.25595% CI: [-13, 3.5]ANCOVA
Comparison: ANCOVA using treatment as a fixed effect and baseline as a covariate was performed. Results for Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QD and Azilsartan Medoxomil 80mg/Chlorthalidone 25 mg QD pool were obtained using contrast with coefficients of 0.5 for Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QD and 0.5 for Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QD from the ANCOVA model.p-value: <0.00195% CI: [-25.9, -10.6]ANCOVA
Secondary

Percentage of Participants Who Achieve a Clinic Diastolic Blood Pressure Response at Week 8, Defined as Clinic Diastolic Blood Pressure <90 mm Hg and/or a Reduction of ≥10 mm Hg From Baseline.

Percentage of participants who achieve a clinic diastolic blood pressure response measured at week 8, defined as less than 90 mm Hg and/or reduction from baseline of greater than or equal to 10 mm Hg. Diastolic blood pressure is the average of the 3 serial trough sitting clinic diastolic blood pressure measurements.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (NUMBER)
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDPercentage of Participants Who Achieve a Clinic Diastolic Blood Pressure Response at Week 8, Defined as Clinic Diastolic Blood Pressure <90 mm Hg and/or a Reduction of ≥10 mm Hg From Baseline.89.6 percentage of participants
Chlorthalidone 25 mg QDPercentage of Participants Who Achieve a Clinic Diastolic Blood Pressure Response at Week 8, Defined as Clinic Diastolic Blood Pressure <90 mm Hg and/or a Reduction of ≥10 mm Hg From Baseline.89.5 percentage of participants
Azilsartan Medoxomil 80 mg QDPercentage of Participants Who Achieve a Clinic Diastolic Blood Pressure Response at Week 8, Defined as Clinic Diastolic Blood Pressure <90 mm Hg and/or a Reduction of ≥10 mm Hg From Baseline.87.6 percentage of participants
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDPercentage of Participants Who Achieve a Clinic Diastolic Blood Pressure Response at Week 8, Defined as Clinic Diastolic Blood Pressure <90 mm Hg and/or a Reduction of ≥10 mm Hg From Baseline.94.8 percentage of participants
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDPercentage of Participants Who Achieve a Clinic Diastolic Blood Pressure Response at Week 8, Defined as Clinic Diastolic Blood Pressure <90 mm Hg and/or a Reduction of ≥10 mm Hg From Baseline.90.1 percentage of participants
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDPercentage of Participants Who Achieve a Clinic Diastolic Blood Pressure Response at Week 8, Defined as Clinic Diastolic Blood Pressure <90 mm Hg and/or a Reduction of ≥10 mm Hg From Baseline.96.8 percentage of participants
Chlorthalidone 12.5 mg QDPercentage of Participants Who Achieve a Clinic Diastolic Blood Pressure Response at Week 8, Defined as Clinic Diastolic Blood Pressure <90 mm Hg and/or a Reduction of ≥10 mm Hg From Baseline.63.9 percentage of participants
Chlorthalidone 25 mg QDPercentage of Participants Who Achieve a Clinic Diastolic Blood Pressure Response at Week 8, Defined as Clinic Diastolic Blood Pressure <90 mm Hg and/or a Reduction of ≥10 mm Hg From Baseline.78.8 percentage of participants
Azilsartan Medoxomil 20 mg QDPercentage of Participants Who Achieve a Clinic Diastolic Blood Pressure Response at Week 8, Defined as Clinic Diastolic Blood Pressure <90 mm Hg and/or a Reduction of ≥10 mm Hg From Baseline.60.6 percentage of participants
Azilsartan Medoxomil 40 mg QDPercentage of Participants Who Achieve a Clinic Diastolic Blood Pressure Response at Week 8, Defined as Clinic Diastolic Blood Pressure <90 mm Hg and/or a Reduction of ≥10 mm Hg From Baseline.71.1 percentage of participants
Azilsartan Medoxomil 80 mg QDPercentage of Participants Who Achieve a Clinic Diastolic Blood Pressure Response at Week 8, Defined as Clinic Diastolic Blood Pressure <90 mm Hg and/or a Reduction of ≥10 mm Hg From Baseline.74.7 percentage of participants
Secondary

Percentage of Participants Who Achieve a Clinic Systolic Blood Pressure Response at Week 8, as Defined by Clinic Systolic Blood Pressure <140 mm Hg and/or a Reduction of ≥20 mm Hg From Baseline.

Percentage of participants who achieve a clinic systolic blood pressure response measured at week 8, defined as less than 140 mm Hg and/or reduction from baseline of greater than or equal to 20 mm Hg. Systolic blood pressure is the average of the 3 serial trough sitting clinic systolic blood pressure measurements.

Time frame: Baseline and Week 8

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (NUMBER)
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDPercentage of Participants Who Achieve a Clinic Systolic Blood Pressure Response at Week 8, as Defined by Clinic Systolic Blood Pressure <140 mm Hg and/or a Reduction of ≥20 mm Hg From Baseline.86.4 percentage of participants
Chlorthalidone 25 mg QDPercentage of Participants Who Achieve a Clinic Systolic Blood Pressure Response at Week 8, as Defined by Clinic Systolic Blood Pressure <140 mm Hg and/or a Reduction of ≥20 mm Hg From Baseline.88.9 percentage of participants
Azilsartan Medoxomil 80 mg QDPercentage of Participants Who Achieve a Clinic Systolic Blood Pressure Response at Week 8, as Defined by Clinic Systolic Blood Pressure <140 mm Hg and/or a Reduction of ≥20 mm Hg From Baseline.90.3 percentage of participants
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDPercentage of Participants Who Achieve a Clinic Systolic Blood Pressure Response at Week 8, as Defined by Clinic Systolic Blood Pressure <140 mm Hg and/or a Reduction of ≥20 mm Hg From Baseline.93.5 percentage of participants
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDPercentage of Participants Who Achieve a Clinic Systolic Blood Pressure Response at Week 8, as Defined by Clinic Systolic Blood Pressure <140 mm Hg and/or a Reduction of ≥20 mm Hg From Baseline.86.8 percentage of participants
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDPercentage of Participants Who Achieve a Clinic Systolic Blood Pressure Response at Week 8, as Defined by Clinic Systolic Blood Pressure <140 mm Hg and/or a Reduction of ≥20 mm Hg From Baseline.94.9 percentage of participants
Chlorthalidone 12.5 mg QDPercentage of Participants Who Achieve a Clinic Systolic Blood Pressure Response at Week 8, as Defined by Clinic Systolic Blood Pressure <140 mm Hg and/or a Reduction of ≥20 mm Hg From Baseline.56.1 percentage of participants
Chlorthalidone 25 mg QDPercentage of Participants Who Achieve a Clinic Systolic Blood Pressure Response at Week 8, as Defined by Clinic Systolic Blood Pressure <140 mm Hg and/or a Reduction of ≥20 mm Hg From Baseline.76.9 percentage of participants
Azilsartan Medoxomil 20 mg QDPercentage of Participants Who Achieve a Clinic Systolic Blood Pressure Response at Week 8, as Defined by Clinic Systolic Blood Pressure <140 mm Hg and/or a Reduction of ≥20 mm Hg From Baseline.53.5 percentage of participants
Azilsartan Medoxomil 40 mg QDPercentage of Participants Who Achieve a Clinic Systolic Blood Pressure Response at Week 8, as Defined by Clinic Systolic Blood Pressure <140 mm Hg and/or a Reduction of ≥20 mm Hg From Baseline.64.5 percentage of participants
Azilsartan Medoxomil 80 mg QDPercentage of Participants Who Achieve a Clinic Systolic Blood Pressure Response at Week 8, as Defined by Clinic Systolic Blood Pressure <140 mm Hg and/or a Reduction of ≥20 mm Hg From Baseline.66.7 percentage of participants
Secondary

Percentage of Participants Who Achieve Both a Clinic Systolic and Diastolic Blood Pressure Response at Week 8.

Percentage of participants who achieve both a clinic systolic and diastolic blood pressure response measured at week 8, defined as systolic blood pressure less than 140 mm Hg and/or reduction from baseline of greater than or equal to 20 mm Hg AND diastolic blood pressure less than 90 mm Hg and/or reduction from baseline of greater than or equal to 10 mm Hg . Systolic/diastolic blood pressure is based on the average of the 3 serial trough clinic sitting systolic/diastolic blood pressure measurements.

Time frame: Baseline and Week 8.

Population: Full analysis set, defined as all randomized participants who received at least 1 dose of double-blind study medication, with both a baseline value and at least 1 post-baseline value, with last observation carried forward.

ArmMeasureValue (NUMBER)
Azilsartan Medoxomil 40 mg or 80 mg/Chlorthalidone 25 mg QDPercentage of Participants Who Achieve Both a Clinic Systolic and Diastolic Blood Pressure Response at Week 8.83.1 percentage of participants
Chlorthalidone 25 mg QDPercentage of Participants Who Achieve Both a Clinic Systolic and Diastolic Blood Pressure Response at Week 8.84.3 percentage of participants
Azilsartan Medoxomil 80 mg QDPercentage of Participants Who Achieve Both a Clinic Systolic and Diastolic Blood Pressure Response at Week 8.84.8 percentage of participants
Azilsartan Medoxomil 40 mg/Chlorthalidone 25 mg QDPercentage of Participants Who Achieve Both a Clinic Systolic and Diastolic Blood Pressure Response at Week 8.91.0 percentage of participants
Azilsartan Medoxomil 80 mg/Chlorthalidone 12.5 mg QDPercentage of Participants Who Achieve Both a Clinic Systolic and Diastolic Blood Pressure Response at Week 8.82.8 percentage of participants
Azilsartan Medoxomil 80 mg/Chlorthalidone 25 mg QDPercentage of Participants Who Achieve Both a Clinic Systolic and Diastolic Blood Pressure Response at Week 8.93.0 percentage of participants
Chlorthalidone 12.5 mg QDPercentage of Participants Who Achieve Both a Clinic Systolic and Diastolic Blood Pressure Response at Week 8.45.8 percentage of participants
Chlorthalidone 25 mg QDPercentage of Participants Who Achieve Both a Clinic Systolic and Diastolic Blood Pressure Response at Week 8.67.9 percentage of participants
Azilsartan Medoxomil 20 mg QDPercentage of Participants Who Achieve Both a Clinic Systolic and Diastolic Blood Pressure Response at Week 8.39.4 percentage of participants
Azilsartan Medoxomil 40 mg QDPercentage of Participants Who Achieve Both a Clinic Systolic and Diastolic Blood Pressure Response at Week 8.55.3 percentage of participants
Azilsartan Medoxomil 80 mg QDPercentage of Participants Who Achieve Both a Clinic Systolic and Diastolic Blood Pressure Response at Week 8.62.3 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026