Trial Outcomes & Findings for Newer Versus Older Antihypertensive Agents in African Hypertensive Patients (NOAAH) Trial (NCT NCT01030458)

NCT ID: NCT01030458

Last Updated: 2013-12-09

Results Overview

Blood pressure is measured by means of validated oscillometric OMRON 705IT recorders (OMRON Healthcare Europe BV, Nieuwegein, Netherlands), after the patient has been seated for 5 minutes in a quiet room, according to the ESC/ESH guidelines. Three consecutive blood pressure readings are obtained and the average of these 3 measurements is used as the primary outcome.

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

183 participants

Primary outcome timeframe

6 months follow-up after randomization

Results posted on

2013-12-09

Participant Flow

Participant milestones

Participant milestones
Measure
Amlodipine Plus Valsartan
In the experimental group, Exforge will be used in two dosage steps, respectively, amlodipine 5 mg plus 160 mg valsartan and to achieve blood pressure control, the study medication could be up-titrated to amlodipine 10 mg plus 160 mg valsartan. Patients take the study medication once a day, in the morning. Follow-up visits will take place at 2 weeks, 1 month and every month thereafter, up until 6 months.
Hydrochlorothiazide Plus Bisoprolol
In the reference group, the Lodoz will be used in two dosage steps, respectively 6.25 mg hydrochlorothiazide plus 5 mg and to achieve blood pressure control, the study medication could be up-titrated to 6.25 mg hydrochlorothiazide plus 10 mg bisoprolol. Patients take the study medication once a day, in the morning. Follow-up visits will take place at 2 weeks, 1 month and every month thereafter, up until 6 months.
Overall Study
STARTED
94
89
Overall Study
COMPLETED
67
57
Overall Study
NOT COMPLETED
27
32

Reasons for withdrawal

Reasons for withdrawal
Measure
Amlodipine Plus Valsartan
In the experimental group, Exforge will be used in two dosage steps, respectively, amlodipine 5 mg plus 160 mg valsartan and to achieve blood pressure control, the study medication could be up-titrated to amlodipine 10 mg plus 160 mg valsartan. Patients take the study medication once a day, in the morning. Follow-up visits will take place at 2 weeks, 1 month and every month thereafter, up until 6 months.
Hydrochlorothiazide Plus Bisoprolol
In the reference group, the Lodoz will be used in two dosage steps, respectively 6.25 mg hydrochlorothiazide plus 5 mg and to achieve blood pressure control, the study medication could be up-titrated to 6.25 mg hydrochlorothiazide plus 10 mg bisoprolol. Patients take the study medication once a day, in the morning. Follow-up visits will take place at 2 weeks, 1 month and every month thereafter, up until 6 months.
Overall Study
Lost to Follow-up
9
10
Overall Study
Withdrawal by Subject
2
3
Overall Study
Logistical reasons
9
5
Overall Study
Moved or changed job
6
13
Overall Study
Side effect of medication
1
1

Baseline Characteristics

Newer Versus Older Antihypertensive Agents in African Hypertensive Patients (NOAAH) Trial

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Amlodipine Plus Valsartan
n=94 Participants
In the experimental group, Exforge will be used in two dosage steps, respectively, amlodipine 5 mg plus 160 mg valsartan and amlodipine 10 mg plus 160 mg valsartan.
Hydrochlorothiazide Plus Bisoprolol
n=89 Participants
In the reference group, the Lodoz will be used in two dosage steps, respectively 6.25 mg hydrochlorothiazide plus 5 mg or 6.25 mg hydrochlorothiazide plus 10 mg bisoprolol
Total
n=183 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
89 Participants
n=5 Participants
82 Participants
n=7 Participants
171 Participants
n=5 Participants
Age, Categorical
>=65 years
5 Participants
n=5 Participants
7 Participants
n=7 Participants
12 Participants
n=5 Participants
Age Continuous
51.3 years
STANDARD_DEVIATION 9.3 • n=5 Participants
51.2 years
STANDARD_DEVIATION 8.7 • n=7 Participants
51.2 years
STANDARD_DEVIATION 9.0 • n=5 Participants
Sex: Female, Male
Female
53 Participants
n=5 Participants
43 Participants
n=7 Participants
96 Participants
n=5 Participants
Sex: Female, Male
Male
41 Participants
n=5 Participants
46 Participants
n=7 Participants
87 Participants
n=5 Participants
Region of Enrollment
Nigeria
46 participants
n=5 Participants
46 participants
n=7 Participants
92 participants
n=5 Participants
Region of Enrollment
Senegal
20 participants
n=5 Participants
20 participants
n=7 Participants
40 participants
n=5 Participants
Region of Enrollment
Gabon
6 participants
n=5 Participants
2 participants
n=7 Participants
8 participants
n=5 Participants
Region of Enrollment
Cameroon
22 participants
n=5 Participants
21 participants
n=7 Participants
43 participants
n=5 Participants

PRIMARY outcome

Timeframe: 6 months follow-up after randomization

Population: The main analysis included all randomised patients with at least one follow-up visit, according to the intention-to-treat principle.

Blood pressure is measured by means of validated oscillometric OMRON 705IT recorders (OMRON Healthcare Europe BV, Nieuwegein, Netherlands), after the patient has been seated for 5 minutes in a quiet room, according to the ESC/ESH guidelines. Three consecutive blood pressure readings are obtained and the average of these 3 measurements is used as the primary outcome.

Outcome measures

Outcome measures
Measure
Amlodipine Plus Valsartan
n=94 Participants
In the experimental group, Exforge will be used in two dosage steps, respectively, amlodipine 5 mg plus 160 mg valsartan and amlodipine 10 mg plus 160 mg valsartan.
Hydrochlorothiazide Plus Bisoprolol
n=89 Participants
In the reference group, the Lodoz will be used in two dosage steps, respectively 6.25 mg hydrochlorothiazide plus 5 mg or 6.25 mg hydrochlorothiazide plus 10 mg bisoprolol
Sitting Systolic Blood Pressure on Automated Measurement
127.2 mmHg
Standard Deviation 10.7
134.1 mmHg
Standard Deviation 13.1

SECONDARY outcome

Timeframe: 6 months follow-up after randomization

The time (in weeks) after randomisation that will be required to reach and maintain the target, defined as a blood pressure below 140 mmHg systolic and 90 mmHg diastolic.

Outcome measures

Outcome measures
Measure
Amlodipine Plus Valsartan
n=94 Participants
In the experimental group, Exforge will be used in two dosage steps, respectively, amlodipine 5 mg plus 160 mg valsartan and amlodipine 10 mg plus 160 mg valsartan.
Hydrochlorothiazide Plus Bisoprolol
n=89 Participants
In the reference group, the Lodoz will be used in two dosage steps, respectively 6.25 mg hydrochlorothiazide plus 5 mg or 6.25 mg hydrochlorothiazide plus 10 mg bisoprolol
Time to Blood Pressure Control
12 weeks
Interval 4.0 to 20.0
18 weeks
Interval 4.0 to 24.0

SECONDARY outcome

Timeframe: 6 months follow-up after randomization

Outcome measures

Outcome measures
Measure
Amlodipine Plus Valsartan
n=94 Participants
In the experimental group, Exforge will be used in two dosage steps, respectively, amlodipine 5 mg plus 160 mg valsartan and amlodipine 10 mg plus 160 mg valsartan.
Hydrochlorothiazide Plus Bisoprolol
n=89 Participants
In the reference group, the Lodoz will be used in two dosage steps, respectively 6.25 mg hydrochlorothiazide plus 5 mg or 6.25 mg hydrochlorothiazide plus 10 mg bisoprolol
Side-effects to Study Medications
1 participants
1 participants

SECONDARY outcome

Timeframe: 6 months follow-up after randomization

This variable gives the proportion of patients reaching blood pressure control over time (\< 140 mmHg systolic and \< 90 mmHg diastolic)

Outcome measures

Outcome measures
Measure
Amlodipine Plus Valsartan
n=94 Participants
In the experimental group, Exforge will be used in two dosage steps, respectively, amlodipine 5 mg plus 160 mg valsartan and amlodipine 10 mg plus 160 mg valsartan.
Hydrochlorothiazide Plus Bisoprolol
n=89 Participants
In the reference group, the Lodoz will be used in two dosage steps, respectively 6.25 mg hydrochlorothiazide plus 5 mg or 6.25 mg hydrochlorothiazide plus 10 mg bisoprolol
Proportion of Patients Reaching Blood Pressure Control at the End of Follow-up
58 participants
Interval 4.0 to 20.0
40 participants
Interval 4.0 to 24.0

Adverse Events

Amlodipine Plus Valsartan

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Hydrochlorothiazide Plus Bisoprolol

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Amlodipine Plus Valsartan
n=94 participants at risk
In the experimental group, Exforge will be used in two dosage steps, respectively, amlodipine 5 mg plus 160 mg valsartan and amlodipine 10 mg plus 160 mg valsartan.
Hydrochlorothiazide Plus Bisoprolol
n=89 participants at risk
In the reference group, the Lodoz will be used in two dosage steps, respectively 6.25 mg hydrochlorothiazide plus 5 mg or 6.25 mg hydrochlorothiazide plus 10 mg bisoprolol
Nervous system disorders
Insomnia/asthenia
0.00%
0/94
1.1%
1/89 • Number of events 1
General disorders
Bilateral leg oedema
1.1%
1/94 • Number of events 1
0.00%
0/89

Additional Information

Prof. Dr. Jan A Staessen

University of Leuven

Phone: +32 16 34 7104

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place