Trial Outcomes & Findings for Efficacy and Safety of Valsartan/Amlodipine Compared to Amlodipine in Patients With Essential Hypertension (NCT NCT00437645)

NCT ID: NCT00437645

Last Updated: 2014-11-11

Results Overview

Blood pressure (BP) was measured at trough (24±3 hours post-dose). The arm in which the highest sitting diastolic BP was found at study entry was used for all subsequent readings. If there was \< 0. 5 mmHg difference in BP between the 2 arms, the non-dominant arm was used. At each visit, after the patient was in a sitting position with the back supported and both feet placed on the floor for 5 minutes, systolic and diastolic BP were measured 3 times with an automated BP monitor and appropriate size cuff. Means of the 3 measurements were calculated. A negative change indicates lowered BP.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

1183 participants

Primary outcome timeframe

Baseline to Week 8

Results posted on

2014-11-11

Participant Flow

Participant milestones

Participant milestones
Measure
Valsartan/Amlodipine 160/5 mg
Twelve (12) weeks treatment with the combination of valsartan/amlodipine 160/5 mg. Together with the active medication, patients received a placebo that matched amlodipine 5 mg. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Amlodipine 10 mg
Eight (8) weeks of treatment with amlodipine 10 mg (two 5 mg capsules). Together with the active medication, the patients received a placebo that matched valsartan 160 mg. At Week 8, patients were switched and treated with the combination of valsartan/amlodipine 160/5 mg and a placebo that matched amlodipine 5 mg for an additional 4 weeks until the end of the study. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Overall Study
STARTED
592
591
Overall Study
COMPLETED
557
476
Overall Study
NOT COMPLETED
35
115

Reasons for withdrawal

Reasons for withdrawal
Measure
Valsartan/Amlodipine 160/5 mg
Twelve (12) weeks treatment with the combination of valsartan/amlodipine 160/5 mg. Together with the active medication, patients received a placebo that matched amlodipine 5 mg. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Amlodipine 10 mg
Eight (8) weeks of treatment with amlodipine 10 mg (two 5 mg capsules). Together with the active medication, the patients received a placebo that matched valsartan 160 mg. At Week 8, patients were switched and treated with the combination of valsartan/amlodipine 160/5 mg and a placebo that matched amlodipine 5 mg for an additional 4 weeks until the end of the study. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Overall Study
Adverse Event
15
84
Overall Study
Withdrawal by Subject
10
22
Overall Study
Protocol Violation
3
3
Overall Study
Lost to Follow-up
2
3
Overall Study
Administrative problems
2
1
Overall Study
Lack of Efficacy
2
1
Overall Study
Condition no longer requires study drug
1
1

Baseline Characteristics

Efficacy and Safety of Valsartan/Amlodipine Compared to Amlodipine in Patients With Essential Hypertension

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Valsartan/Amlodipine 160/5 mg
n=592 Participants
Twelve (12) weeks treatment with the combination of valsartan/amlodipine 160/5 mg. Together with the active medication, patients received a placebo that matched amlodipine 5 mg. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Amlodipine 10 mg
n=591 Participants
Eight (8) weeks of treatment with amlodipine 10 mg (two 5 mg capsules). Together with the active medication, the patients received a placebo that matched valsartan 160 mg. At Week 8, patients were switched and treated with the combination of valsartan/amlodipine 160/5 mg and a placebo that matched amlodipine 5 mg for an additional 4 weeks until the end of the study. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Total
n=1183 Participants
Total of all reporting groups
Age, Continuous
Overall study
65.6 Age (years)
STANDARD_DEVIATION 7.56 • n=5 Participants
65.4 Age (years)
STANDARD_DEVIATION 7.16 • n=7 Participants
65.5 Age (years)
STANDARD_DEVIATION 7.36 • n=5 Participants
Sex: Female, Male
Female
285 Participants
n=5 Participants
284 Participants
n=7 Participants
569 Participants
n=5 Participants
Sex: Female, Male
Male
307 Participants
n=5 Participants
307 Participants
n=7 Participants
614 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Baseline to Week 8

Population: Intent-to-treat (ITT) population: All randomized patients who had a baseline and at least one post-baseline efficacy assessment. For patients who discontinued prior to Week 8, the last post-baseline msSBP measurement collected was used for the analysis (last observation carried forward \[LOCF\]).

Blood pressure (BP) was measured at trough (24±3 hours post-dose). The arm in which the highest sitting diastolic BP was found at study entry was used for all subsequent readings. If there was \< 0. 5 mmHg difference in BP between the 2 arms, the non-dominant arm was used. At each visit, after the patient was in a sitting position with the back supported and both feet placed on the floor for 5 minutes, systolic and diastolic BP were measured 3 times with an automated BP monitor and appropriate size cuff. Means of the 3 measurements were calculated. A negative change indicates lowered BP.

Outcome measures

Outcome measures
Measure
Valsartan/Amlodipine 160/5 mg
n=567 Participants
Twelve (12) weeks treatment with the combination of valsartan/amlodipine 160/5 mg. Together with the active medication, patients received a placebo that matched amlodipine 5 mg. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Amlodipine 10 mg
n=510 Participants
Eight (8) weeks of treatment with amlodipine 10 mg (two 5 mg capsules). Together with the active medication, the patients received a placebo that matched valsartan 160 mg. At Week 8, patients were switched and treated with the combination of valsartan/amlodipine 160/5 mg and a placebo that matched amlodipine 5 mg for an additional 4 weeks until the end of the study. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Change in Mean Sitting Systolic Blood Pressure (msSBP) From Baseline to Week 8
-8.01 mmHg
Standard Error 0.5944
-6.30 mmHg
Standard Error 0.6088

PRIMARY outcome

Timeframe: Baseline to Week 8

Population: Safety population: All randomized patients.

Only occurrences of peripheral edema quantified as a reported adverse event coded as peripheral edema were included in the analysis. If a patient experienced more than one occurrence of peripheral edema between Day 1 and Week 8, it was only counted once in the analysis.

Outcome measures

Outcome measures
Measure
Valsartan/Amlodipine 160/5 mg
n=592 Participants
Twelve (12) weeks treatment with the combination of valsartan/amlodipine 160/5 mg. Together with the active medication, patients received a placebo that matched amlodipine 5 mg. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Amlodipine 10 mg
n=591 Participants
Eight (8) weeks of treatment with amlodipine 10 mg (two 5 mg capsules). Together with the active medication, the patients received a placebo that matched valsartan 160 mg. At Week 8, patients were switched and treated with the combination of valsartan/amlodipine 160/5 mg and a placebo that matched amlodipine 5 mg for an additional 4 weeks until the end of the study. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Percentage of Patients With Peripheral Edema From Baseline to Week 8
6.6 Percentage of patients
31.1 Percentage of patients

SECONDARY outcome

Timeframe: Baseline to Week 8

Population: Intent-to-treat (ITT) population: All randomized patients who had a baseline and at least one post-baseline efficacy assessment. For patients who discontinued prior to Week 8, the last post-baseline msSBP measurement collected was used for the analysis (last observation carried forward \[LOCF\]).

Blood pressure (BP) was measured at trough (24±3 hours post-dose). The arm in which the highest sitting diastolic BP was found at study entry was used for all subsequent readings. If there was \< 0. 5 mmHg difference in BP between the 2 arms, the non-dominant arm was used. At each visit, after the patient was in a sitting position with the back supported and both feet placed on the floor for 5 minutes, systolic and diastolic BP were measured 3 times with an automated BP monitor and appropriate size cuff. Means of the 3 measurements were calculated. A negative change indicates lowered BP.

Outcome measures

Outcome measures
Measure
Valsartan/Amlodipine 160/5 mg
n=567 Participants
Twelve (12) weeks treatment with the combination of valsartan/amlodipine 160/5 mg. Together with the active medication, patients received a placebo that matched amlodipine 5 mg. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Amlodipine 10 mg
n=510 Participants
Eight (8) weeks of treatment with amlodipine 10 mg (two 5 mg capsules). Together with the active medication, the patients received a placebo that matched valsartan 160 mg. At Week 8, patients were switched and treated with the combination of valsartan/amlodipine 160/5 mg and a placebo that matched amlodipine 5 mg for an additional 4 weeks until the end of the study. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Change in Mean Sitting Diastolic Blood Pressure (msDBP) From Baseline to Week 8
-4.65 mmHg
Standard Error 0.3616
-4.13 mmHg
Standard Error 0.3690

SECONDARY outcome

Timeframe: Baseline to Weeks 4, 8, and 12

Population: Intent-to-treat (ITT) population: All randomized patients who had a baseline and at least one post-baseline efficacy assessment. For patients who discontinued prior to Week 8, the last post-baseline msSBP measurement collected was used for the analysis (last observation carried forward \[LOCF\]).

Blood pressure (BP) was measured at trough (24±3 hours post-dose). The arm in which the highest sitting diastolic BP was found at study entry was used for all subsequent readings. If there was \< 0. 5 mmHg difference in BP between the 2 arms, the non-dominant arm was used. At each visit, after the patient was in a sitting position with the back supported and both feet placed on the floor for 5 minutes, systolic and diastolic BP were measured 3 times with an automated BP monitor and appropriate size cuff. Means of the 3 measurements were calculated. A negative change indicates lowered BP.

Outcome measures

Outcome measures
Measure
Valsartan/Amlodipine 160/5 mg
n=576 Participants
Twelve (12) weeks treatment with the combination of valsartan/amlodipine 160/5 mg. Together with the active medication, patients received a placebo that matched amlodipine 5 mg. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Amlodipine 10 mg
n=535 Participants
Eight (8) weeks of treatment with amlodipine 10 mg (two 5 mg capsules). Together with the active medication, the patients received a placebo that matched valsartan 160 mg. At Week 8, patients were switched and treated with the combination of valsartan/amlodipine 160/5 mg and a placebo that matched amlodipine 5 mg for an additional 4 weeks until the end of the study. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Change in Mean Sitting Systolic and Diastolic Blood Pressure (msSBP, msDBP) From Baseline to Weeks 4, 8, and 12
msDBP: Week 8 (n=576, 510)
-4.68 mmHg
Standard Error 0.3632
-3.97 mmHg
Standard Error 0.3736
Change in Mean Sitting Systolic and Diastolic Blood Pressure (msSBP, msDBP) From Baseline to Weeks 4, 8, and 12
msDBP: Week 12 (n=569, 531)
-5.50 mmHg
Standard Error 0.03735
-4.90 mmHg
Standard Error 0.3785
Change in Mean Sitting Systolic and Diastolic Blood Pressure (msSBP, msDBP) From Baseline to Weeks 4, 8, and 12
msSBP: Week 4 (n=576, 535)
-8.40 mmHg
Standard Error 0.5559
-6.48 mmHg
Standard Error 0.5676
Change in Mean Sitting Systolic and Diastolic Blood Pressure (msSBP, msDBP) From Baseline to Weeks 4, 8, and 12
msSBP: Week 8 (n=567, 510)
-8.15 mmHg
Standard Error 0.6065
-6.11 mmHg
Standard Error 0.6266
Change in Mean Sitting Systolic and Diastolic Blood Pressure (msSBP, msDBP) From Baseline to Weeks 4, 8, and 12
msSBP: Week 12 (n=569, 531)
-9.08 mmHg
Standard Error 0.6968
-7.82 mmHg
Standard Error 0.7088
Change in Mean Sitting Systolic and Diastolic Blood Pressure (msSBP, msDBP) From Baseline to Weeks 4, 8, and 12
msDBP: Week 4 (n=576, 535)
-5.05 mmHg
Standard Error 0.3559
-4.23 mmHg
Standard Error 0.3623

SECONDARY outcome

Timeframe: Baseline to Weeks 4, 8, and 12

Population: Intent-to-treat (ITT) population: All randomized patients who had a baseline and at least one post-baseline efficacy assessment. For patients who discontinued prior to Week 8, the last post-baseline msSBP measurement collected was used for the analysis (last observation carried forward \[LOCF\]).

Systolic response was defined as msSBP \< 130 mmHg or at least a 20 mmHg reduction from baseline in msSBP at Weeks 4, 8, and 12. Blood pressure (BP) was measured at trough (24±3 hours post-dose). The arm in which the highest sitting diastolic BP was found at study entry was used for all subsequent readings. At each visit, after the patient was in a sitting position with the back supported and both feet placed on the floor for 5 minutes, systolic and diastolic BP were measured 3 times with an automated BP monitor and appropriate size cuff. Means of the 3 measurements were calculated.

Outcome measures

Outcome measures
Measure
Valsartan/Amlodipine 160/5 mg
n=576 Participants
Twelve (12) weeks treatment with the combination of valsartan/amlodipine 160/5 mg. Together with the active medication, patients received a placebo that matched amlodipine 5 mg. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Amlodipine 10 mg
n=535 Participants
Eight (8) weeks of treatment with amlodipine 10 mg (two 5 mg capsules). Together with the active medication, the patients received a placebo that matched valsartan 160 mg. At Week 8, patients were switched and treated with the combination of valsartan/amlodipine 160/5 mg and a placebo that matched amlodipine 5 mg for an additional 4 weeks until the end of the study. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Percentage of Patients Achieving a Systolic Response at Weeks 4, 8, and 12
Week 4 (n=576, 535)
35.07 Percentage of patients
25.42 Percentage of patients
Percentage of Patients Achieving a Systolic Response at Weeks 4, 8, and 12
Week 8 (n=567, 510)
34.22 Percentage of patients
25.49 Percentage of patients
Percentage of Patients Achieving a Systolic Response at Weeks 4, 8, and 12
Week 12 (n=569, 531)
37.96 Percentage of patients
31.26 Percentage of patients

Adverse Events

Valsartan/Amlodipine 160/5 mg

Serious events: 11 serious events
Other events: 61 other events
Deaths: 0 deaths

Amlodipine 10 mg

Serious events: 8 serious events
Other events: 201 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Valsartan/Amlodipine 160/5 mg
n=592 participants at risk
Twelve (12) weeks treatment with the combination of valsartan/amlodipine 160/5 mg. Together with the active medication, patients received a placebo that matched amlodipine 5 mg. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Amlodipine 10 mg
n=591 participants at risk
Eight (8) weeks of treatment with amlodipine 10 mg (two 5 mg capsules). Together with the active medication, the patients received a placebo that matched valsartan 160 mg. At Week 8, patients were switched and treated with the combination of valsartan/amlodipine 160/5 mg and a placebo that matched amlodipine 5 mg for an additional 4 weeks until the end of the study. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Cardiac disorders
Atrial fibrillation
0.17%
1/592
0.00%
0/591
Gastrointestinal disorders
Gastrointestinal haemorrhage
0.00%
0/592
0.17%
1/591
Gastrointestinal disorders
Gastrointestinal necrosis
0.00%
0/592
0.17%
1/591
Gastrointestinal disorders
Inguinal hernia
0.00%
0/592
0.17%
1/591
General disorders
Asthenia
0.17%
1/592
0.00%
0/591
General disorders
Pyrexia
0.17%
1/592
0.00%
0/591
Hepatobiliary disorders
Cholecystitis
0.34%
2/592
0.00%
0/591
Hepatobiliary disorders
Cholelithiasis
0.17%
1/592
0.00%
0/591
Infections and infestations
Hantavirus pulmonary infection
0.17%
1/592
0.00%
0/591
Infections and infestations
Urinary tract infection
0.17%
1/592
0.00%
0/591
Injury, poisoning and procedural complications
Drug toxicity
0.17%
1/592
0.00%
0/591
Injury, poisoning and procedural complications
Humerus fracture
0.00%
0/592
0.17%
1/591
Injury, poisoning and procedural complications
Ligament rupture
0.17%
1/592
0.00%
0/591
Injury, poisoning and procedural complications
Meniscus lesion
0.17%
1/592
0.00%
0/591
Investigations
Blood creatine phosphokinase increased
0.17%
1/592
0.00%
0/591
Musculoskeletal and connective tissue disorders
Arthralgia
0.17%
1/592
0.00%
0/591
Musculoskeletal and connective tissue disorders
Bursitis
0.17%
1/592
0.00%
0/591
Musculoskeletal and connective tissue disorders
Muscular weakness
0.00%
0/592
0.17%
1/591
Musculoskeletal and connective tissue disorders
Myalgia
0.17%
1/592
0.00%
0/591
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Colon cancer
0.17%
1/592
0.00%
0/591
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Pancreatic carcinoma
0.00%
0/592
0.17%
1/591
Nervous system disorders
Cerebrovascular accident
0.00%
0/592
0.17%
1/591
Nervous system disorders
Dysphasia
0.00%
0/592
0.17%
1/591
Psychiatric disorders
Neglect of personal appearance
0.00%
0/592
0.17%
1/591
Renal and urinary disorders
Bladder tamponade
0.17%
1/592
0.00%
0/591
Renal and urinary disorders
Haematuria
0.17%
1/592
0.00%
0/591
Renal and urinary disorders
Renal impairment
0.17%
1/592
0.00%
0/591
Reproductive system and breast disorders
Epididymitis
0.00%
0/592
0.17%
1/591
Respiratory, thoracic and mediastinal disorders
Dyspnoea
0.00%
0/592
0.17%
1/591
Respiratory, thoracic and mediastinal disorders
Haemoptysis
0.00%
0/592
0.17%
1/591
Skin and subcutaneous tissue disorders
Hyperhidrosis
0.00%
0/592
0.17%
1/591

Other adverse events

Other adverse events
Measure
Valsartan/Amlodipine 160/5 mg
n=592 participants at risk
Twelve (12) weeks treatment with the combination of valsartan/amlodipine 160/5 mg. Together with the active medication, patients received a placebo that matched amlodipine 5 mg. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
Amlodipine 10 mg
n=591 participants at risk
Eight (8) weeks of treatment with amlodipine 10 mg (two 5 mg capsules). Together with the active medication, the patients received a placebo that matched valsartan 160 mg. At Week 8, patients were switched and treated with the combination of valsartan/amlodipine 160/5 mg and a placebo that matched amlodipine 5 mg for an additional 4 weeks until the end of the study. The three capsules were taken by mouth with water once daily in the morning, regardless of meals. Patients were instructed not to take their study medication the morning of their study visits. Instead, they brought the study medication with them to the site and took it there as instructed by the investigator.
General disorders
Oedema peripheral
7.3%
43/592
31.5%
186/591
Nervous system disorders
Headache
3.0%
18/592
5.6%
33/591

Additional Information

Study Director

Novartis Pharmaceuticals

Phone: 862 778-8300

Results disclosure agreements

  • Principal investigator is a sponsor employee Disclosure Restriction Description: The terms and conditions of Novartis' agreements with its investigators may vary. However, Novartis does not prohibit any investigator from publishing. Any publications from a single-site are postponed until the publication of the pooled data (ie, data from all sites) in the clinical trial.
  • Publication restrictions are in place

Restriction type: OTHER