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HypertensionPhase 3I-ADDNCT00957554

Irbesartan/Amlodipine in Hypertensive Patients Uncontrolled on Irbesartan 150 mg Monotherapy

A Phase 3 study testing irbesartan/amlodipine and irbesartan in people with Hypertension, run by Sanofi at 38 sites in 8 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Primary Objective: To demonstrate that the antihypertensive efficacy of the fixed combination irbesartan/amlodipine 300/5 mg is superior to that of irbesartan 300 mg monotherapy in lowering systolic blood pressure (SBP) as measured by home blood pressure measurement (HBPM) after 10 weeks of treatment (W10) Secondary… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hypertension
What is being tested?
irbesartan/amlodipine and irbesartan
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
435 participants
Where
38 sitesin 8 countries
Study dates
Jul 2009to Sep 2010
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Established essential hypertension
  • Treated with irbesartan 150 mg monotherapy for at least 4 weeks
  • With uncontrolled BP defined as mean SBP = or > 145 mmHg assessed by OBPM
  • Signed written inform consent obtained prior to inclusion in the study
  • Randomisation Criteria:
  • Mean SBP = or > 135 mmHg assessed by HBPM
  • Good compliance with the HBPM protocol defined as at least 12 correct measurements performed over the last 6 days of the first period of measurements
  • Creatinine clearance = or > 30 ml/min determined ny Cockroft formula

Who cannot join

  • Mean SBP = or > 180 mmHg and/or mean DBP = or > 110 mmHg measured at doctor's office at Visit 1
  • Known or suspected causes of secondary hypertension
  • Patients with bilateral artery stenosis, renal artery stenosis in a solitary kidney, renal transplant or only has one functioning kidney
  • Know contraindications or hypersensitivity to either amlodipine or irbesartan or to the combination or history of angioedema related to the administration of an angiotensin II receptor antagonist or any combination of the drugs used
  • Know type 1 diabetes
  • Know severe hepatic impairment alanine aminotransferase (ALT) or aspartate aminotransferase (AST) > 5 times the upper limit of normal or history of hepatic encephalopathy, esophageal varices, or portocaval shunt
Show all 15Show fewer
  • Know severe renal impairment (creatinine clearance < 30 ml/mn)
  • Concomitant use of any other antihypertensive treatment
  • Administration of any other investigational drug within 30 days before inclusion
  • Inability to obtain a valid automatic BP measurement recording
  • Presence of any severe medical or psychological condition that, in the opinion of the investigator, indicate that participation in the study is not in the best interest of of the patient
  • Presence of any other conditions (e.g.: geographical, social, etc) that would restrict or limit the patient participation for the duration of the study
  • Pregnant or breast feeding women
  • Women of childbearing potential unable or unwilling to use an acceptable method to avoid pregnancy for the entire study period
  • The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Trial locations and contacts

38 sites in 8 countries.

38 sites in 8 countries

Tunisia9 sites
  • Sanofi-Aventis Investigational Site Number 78805

    Aryanah

  • Sanofi-Aventis Investigational Site Number 78804

    La Marsa

  • Sanofi-Aventis Investigational Site Number 78802

    Menzel Bourguiba

  • Sanofi-Aventis Investigational Site Number 78813

    Monastir, 5000

  • Sanofi-Aventis Investigational Site Number 78815

    Sousse

  • Sanofi-Aventis Investigational Site Number 78801

    Tunis, 1008

  • Sanofi-Aventis Investigational Site Number 78812

    Tunis, 1008

  • Sanofi-Aventis Investigational Site Number 78803

    Tunis

  • Sanofi-Aventis Investigational Site Number 78807

    Tunis

Other trials in Tunisia

Mexico7 sites
  • Sanofi-Aventis Investigational Site Number 48402

    Guadalajara, 44340

  • Sanofi-Aventis Investigational Site Number 48401

    Mérida, 97070

  • Sanofi-Aventis Investigational Site Number 48406

    México, 11340

  • Sanofi-Aventis Investigational Site Number 48403

    San Luis Potosí City, 72244

  • Sanofi-Aventis Investigational Site Number 48407

    San Luis Potosí City, 78200

  • Sanofi-Aventis Investigational Site Number 48404

    Torreón, 27000

  • Sanofi-Aventis Investigational Site Number 48408

    Zapopan, 44210

Other trials in Mexico

Morocco6 sites
  • Sanofi-Aventis Investigational Site Number 50403

    Casablanca, 20000

  • Sanofi-Aventis Investigational Site Number 50401

    Casablanca

  • Sanofi-Aventis Investigational Site Number 50402

    Casablanca

  • Sanofi-Aventis Investigational Site Number 50405

    Casablanca

  • Sanofi-Aventis Investigational Site Number 50404

    Rabat

  • Sanofi-Aventis Investigational Site Number 50406

    Rabat

Other trials in Morocco

Brazil5 sites
  • Sanofi-Aventis Investigational Site Number 07605

    Belo Horizonte, 30150-221

  • Sanofi-Aventis Investigational Site Number 07602

    Caxias do Sul, 95070-560

  • Sanofi-Aventis Investigational Site Number 07604

    Maceió, 57051-500

  • Sanofi-Aventis Investigational Site Number 07603

    São José do Rio Preto, 15015-210

  • Sanofi-Aventis Investigational Site Number 07601

    Sorocaba, 18030-083

Other trials in Brazil

Guatemala5 sites
  • Sanofi-Aventis Investigational Site Number 32001

    Guatemala City

  • Sanofi-Aventis Investigational Site Number 32002

    Guatemala City

  • Sanofi-Aventis Investigational Site Number 32003

    Guatemala City

  • Sanofi-Aventis Investigational Site Number 32004

    Guatemala City

  • Sanofi-Aventis Investigational Site Number 32005

    Guatemala City

Other trials in Guatemala

Colombia3 sites
  • Sanofi-Aventis Investigational Site Number 17001

    Barranquilla

  • Sanofi-Aventis Investigational Site Number 17002

    Barranquilla

  • Sanofi-Aventis Investigational Site Number 17003

    Cartagena

Other trials in Colombia

United Arab Emirates2 sites
  • Sanofi-Aventis Investigational Site Number 784-001

    Abu Dhabi

  • Sanofi-Aventis Investigational Site Number 784-02

    Dubai, 4545

Other trials in United Arab Emirates

Venezuela1 site
  • Sanofi-Aventis Investigational Site Number 86201

    Maracaibo

Other trials in Venezuela

About this study

Official title: Efficacy and Safety of Irbesartan/Amlodipine Fixed Combination Therapy Compared With Irbesartan Monotherapy in Hypertensive Patients Uncontrolled on Irbesartan 150 mg Monotherapy

Primary Objective:

To demonstrate that the antihypertensive efficacy of the fixed combination irbesartan/amlodipine 300/5 mg is superior to that of irbesartan 300 mg monotherapy in lowering systolic blood pressure (SBP) as measured by home blood pressure measurement (HBPM) after 10 weeks of treatment (W10)

Read more

Secondary Objective:

  • To compare the antihypertensive efficacy of the fixed combination irbesartan/amlodipine 300/5 mg with that of irbesartan 300 mg monotherapy after 10 weeks of treatment (W10)
  • To compare the antihypertensive efficacy of the fixed combination therapy irbesartan/amlodipine 150/5 mg with that of irbesartan 150 mg monotherapy after 5 weeks of treatment (W5)
  • To examine in each treatment group the change from week 5 to week 10 in SBP and diastolic blood pressure (DBP) assessed by HBPM and by office blood pressure measurement (OBPM)
  • To determine the incidence and severity of adverse events
Conditions
Hypertension
Being tested
irbesartan/amlodipine, irbesartan
Medical subject headings
Hypertension

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • irbesartan/amlodipineDrug

    Pharmaceutical form: 150/5 mg and 150/10 mg tablets (fixed combination) Route of administration: oral Dose regimen: 1 tablet once daily

  • irbesartanDrug

    Pharmaceutical form: 150 and 300 mg tablets Route of administration: oral Dose regimen: 1 tablet once daily

Study groups in NCT00957554
Study groupRoleWhat they receive
irbesartan/amlodipineExperimentalBefore randomisation: irbesartan 150 mg for 7 to 10 days (common in the 2 arms) then After randomisation: irbesartan/amlodipine 150/5 mg fixed combination for 5 weeks followed by irbesartan/amlodipine 300/5 mg fixed combination for additional 5 weeks
Receives: Drug: irbesartan/amlodipine
irbesartanActive comparatorBefore randomisation: irbesartan 150 mg for 7 to 10 days (common in the 2 arms) then After randomisation: irbesartan 150 mg for 5 weeks followed by irbesartan 300 mg for 5 additional weeks
Receives: Drug: irbesartan

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean home systolic blood pressure

    Measured: At randomisation and week 10

Secondary outcomes (2)
  1. Mean office blood pressure

    Measured: At randomisation, week 5 and week 10

  2. Mean home diastolic blood pressure

    Measured: At randomisation, week 5 and week 10

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Aug 2009 (estimated)
  2. Study startJul 2009
  3. Primary completionSep 2010
  4. Study completionSep 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
435 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00957554
Sponsor's protocol ID
IRBAM_R_04219
Acronym
I-ADD
Status last verified
Oct 2010
First submitted
11 Aug 2009
Last updated
26 Oct 2010
Results posted
No

Publications

  • Bobrie G; I-ADD Study Investigators. I-ADD study: assessment of efficacy and safety profile of irbesartan/amlodipine fixed-dose combination therapy compared with irbesartan monotherapy in hypertensive patients uncontrolled with irbesartan 150 mg monotherapy: a multicenter, phase III, prospective, randomized, open-label with blinded-end point evaluation study. Clin Ther. 2012 Aug;34(8):1720-34.e3. doi: 10.1016/j.clinthera.2012.07.001. Epub 2012 Jul 30.

    PubMed 22853847

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing irbesartan/amlodipine and irbesartan in people with Hypertension, run by Sanofi at 38 sites in 8 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 Oct 2010. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 38 sites in Tunisia, Mexico, Morocco, Brazil, Guatemala and 3 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean home systolic blood pressure (time frame: At randomisation and week 10). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00957554, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Oct 2010.

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