HypertensionPhase 4NCT01519635
Effect of Aliskiren and Hydrochlorothiazide on Kidney Oxygenation in Patients With Hypertension
A Phase 4 study testing Aliskiren and Hydrochlorothiazide in people with Hypertension, run by Centre Hospitalier Universitaire Vaudois at 1 site in Switzerland.
Trial summary
The goal of this project is to evaluate the chronic effect (8 weeks) of RASILEZ 300mg (aliskiren) on renal tissue oxygenation in patients with stage 1-2 hypertension, and to compare the chronic effect (8 weeks) of RASILEZ 300mg (aliskiren) on renal tissue oxygenation in patients with stage 1-2 hypertension with these… Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Hypertension
- What is being tested?
- Aliskiren and Hydrochlorothiazide
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 24 participants
- Where
- 1 siteSwitzerland
- Study dates
- Oct 2011to Oct 2014
- Phase
- Phase 4
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Tolerance to study drugs
- Age > 18 years
- Arteria hypertension stage 1-2 (blood pressure: 140/90 and 180/110 mm Hg)
- Normal renal function
- Availability to give informed consent
Who cannot join
- Intolerance to study drugs
- Renal artery stenosis
- Hyperkalaemia > 5.0 mmol/l
- Contra-indications to the use of PAH, inulin or Lithium
- Asthma
- Pychiatric illness
- No estimated easy vascular venous access for placement of two peripherical venous catheters in forearms
- Contra-indication to MRI-imaging: Claustrophobia or Pacemaker or other implanted metal device
Trial locations and contacts
1 site in 1 country.
Switzerland1 site
Centre Hospitalier Universitaire Vaudois
Lausanne, Canton of Vaud, 1004
About this study
Official title: Effect of Aliskiren 300mg and Hydrochlorothiazide 25mg on Kidney Oxygenation in Patients With Stage 1 and 2 Hypertension: a BOLD-MRI Study
The goal of this project is to evaluate the chronic effect (8 weeks) of RASILEZ 300mg (aliskiren) on renal tissue oxygenation in patients with stage 1-2 hypertension, and to compare the chronic effect (8 weeks) of RASILEZ 300mg (aliskiren) on renal tissue oxygenation in patients with stage 1-2 hypertension with these effects with those of ESIDREX 25mg (hydrochlorothiazide).
Read the detailed description
36 patients with arterial hypertension stage 1-2 (blood pressure: 140/90 and 180/110 mm Hg) will be included in this study and randomized to two groups of 18 patients each: one group will receive RASILEZ 300mg (aliskiren) and one group ESIDREX 25mg (hydrochlorothiazide).
After a two week washout of antihypertensive drugs, baseline and the chronic effect (8 week study drug) of each group will be studied with precise renal hemodynamic measurements (inulin clearance, PAH renal plasma and blood flow, sodium and endogenous lithium excretion, plasma renin, plasma aldosterone, urinary sodium and potassium) and assessment of renal oxygenation with BOLD-MRI (blood oxygen level detection - magnetic resonance imaging).
Drug therapy will be started with an initial 2 weeks on Rasilez 150 mg or HCTZ 12.5 mg followed by a titration to 300 mg Rasilez and 25 mg HCTZ if the treatment is well tolerated. In both groups: a first baseline measurements will be performed before initiating therapy and a second after 8 weeks of treatment (24h after last drug intake) to assess the chronic effect.
Patients already on treatment with antihypertensive drugs can be included in this study, but will undergo a 'wash-out' period of two weeks. After obtaining informed consent, baseline physical examination and office blood pressure measurement will be performed. Office blood pressure will be measured according to the guidelines of the European Society on Hypertension and European Society of Cardiology (ESH-ESC practice guidelines) by an experienced physician. Moreover, patients will measure their home blood pressure twice daily: after 5 minutes of sitting quietly, three measures spaced by 1-2 minutes will be taken in the morning and in the evening. For this purpose, an Omron 705 IT device will be provided to the participants; this device has been widely tested in clinical practice and has been validated for use in clinical studies (12).
Throughout the study, the participants will continue his/her regular diet. The goal should be to keep the salt intake as stable as possible during the study, since salt intake alters the R2* signal. Salt intake will be verified each time before BOLD-MRI measurement by a 24h urine collection (dosing volume, creatinine- and sodium-concentration).
To complete the study we decid to test the acute effect of aliskiren 300mg and Esidrex (hydrochlorthiazide) 25mg in 6 healthy volunteers. We will measure the cortical and medullary R2* signal before drug intake and 3 hours after drug administration. Each participant will take the two drugs in a randomised crossover design. A wash-out period of two week between the two administration will be implemented.
- Conditions
- Hypertension
- Being tested
- Aliskiren, Hydrochlorothiazide
- Keywords
- Kidney oxygenation, Stage 1 or 2 hypertension, BOLD-IRM
- Medical subject headings
- Hypertension
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AliskirenDrug
Also called Rasilez
Drug therapy will be started with an initial 2 weeks on Aliskiren 150 mg followed by a titration to 300 mg Aliskiren if the treatment is well tolerated. A first baseline measurements will be performed before initiating therapy and a second after 8 weeks of treatment (24h after last drug intake) to assess the chronic effect.
HydrochlorothiazideDrug
Also called Esidrex
Drug therapy will be started with an initial 2 weeks HCTZ 12.5 mg followed by a titration to 25 mg HCTZ if the treatment is well tolerated. A first baseline measurements will be performed before initiating therapy and a second after 8 weeks of treatment (24h after last drug intake) to assess the chronic effect.
| Study group | Role | What they receive |
|---|---|---|
| Aliskiren | Active comparator | Aliskiren 150 to 300 mg once a Week for 8 weeks Receives: Drug: Aliskiren |
| Hydrochlorothiazide | Active comparator | HCTZ 12.5 - 25 mg/d once a day for 8 weeks Receives: Drug: Hydrochlorothiazide |
What is being measured
The primary outcome is the main question the study is designed to answer.
Renal Oxygenation Changes After Chronic Treatment With Aliskiren or Hydrochlorothiazide
Changes in R2* at between week 0 and week 8 as measured by BOLD MRI in the cortex and medulla of the kidney
Measured: week 0 vs week 8
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Jan 2012 (estimated)
- Study startOct 2011
- Primary completionOct 2014
- Study completionOct 2014
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for HypertensionStudies of the same condition, open and under way.
- More trials run by Centre Hospitalier Universitaire VaudoisThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 24 participants (actual)
Sponsor and investigators
- Lead sponsor
- Centre Hospitalier Universitaire Vaudois
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Michel Burnier, Centre Hospitalier Universitaire Vaudois
- Investigators
- Michel Burnier, Professor, Principal investigator, Centre Hospitalier Universitaire Vaudois
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01519635
- Sponsor's protocol ID
- 2011DR3137
- Status last verified
- Mar 2020
- First submitted
- 6 Jan 2012
- Last updated
- 17 Mar 2020
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Publications
Pruijm M, Hofmann L, Maillard M, Tremblay S, Glatz N, Wuerzner G, Burnier M, Vogt B. Effect of sodium loading/depletion on renal oxygenation in young normotensive and hypertensive men. Hypertension. 2010 May;55(5):1116-22. doi: 10.1161/HYPERTENSIONAHA.109.149682. Epub 2010 Mar 22.
PubMed 20308608Vakilzadeh N, Muller ME, Forni V, Milani B, Hoffman L, Piskunowicz M, Maillard M, Zweiacker C, Pruijm M, Burnier M. Comparative Effect of a Renin Inhibitor and a Thiazide Diuretic on Renal Tissue Oxygenation in Hypertensive Patients. Kidney Blood Press Res. 2015;40(5):542-54. doi: 10.1159/000368530. Epub 2015 Oct 26.
PubMed 26501147
Study at a glance
From the registry record, last updated by the sponsor on 17 Mar 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Aliskiren 300mg and Hydrochlorothiazide 25mg on Kidney Oxygenation in Patients With Stage 1 and 2 Hypertension: a BOLD-MRI Study
- ClinicalTrials.gov ID
- NCT01519635
- Acronym / sponsor ID
- 2011DR3137
- Conditions
- Hypertension
- Keywords
- Kidney oxygenation, Stage 1 or 2 hypertension, BOLD-IRM
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 24 participants (actual)
- Lead sponsor
- Centre Hospitalier Universitaire VaudoisUniversity, hospital or other
- Study start
- Oct 2011
- Primary completion
- Oct 2014 (actual)
- Study completion
- Oct 2014 (actual)
- First posted
- 27 Jan 2012 (estimated)
- Results
- Posted 6 Sep 2019
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this project is to evaluate the chronic effect (8 weeks) of RASILEZ 300mg (aliskiren) on renal tissue oxygenation in patients with stage 1-2 hypertension, and to compare the chronic effect (8 weeks) of RASILEZ 300mg (aliskiren) on renal tissue oxygenation in patients with stage 1-2 hypertension with these effects with those of ESIDREX 25mg (hydrochlorothiazide).
Detailed description
36 patients with arterial hypertension stage 1-2 (blood pressure: 140/90 and 180/110 mm Hg) will be included in this study and randomized to two groups of 18 patients each: one group will receive RASILEZ 300mg (aliskiren) and one group ESIDREX 25mg (hydrochlorothiazide).
After a two week washout of antihypertensive drugs, baseline and the chronic effect (8 week study drug) of each group will be studied with precise renal hemodynamic measurements (inulin clearance, PAH renal plasma and blood flow, sodium and endogenous lithium excretion, plasma renin, plasma aldosterone, urinary sodium and potassium) and assessment of renal oxygenation with BOLD-MRI (blood oxygen level detection - magnetic resonance imaging).
Drug therapy will be started with an initial 2 weeks on Rasilez 150 mg or HCTZ 12.5 mg followed by a titration to 300 mg Rasilez and 25 mg HCTZ if the treatment is well tolerated. In both groups: a first baseline measurements will be performed before initiating therapy and a second after 8 weeks of treatment (24h after last drug intake) to assess the chronic effect.
Patients already on treatment with antihypertensive drugs can be included in this study, but will undergo a 'wash-out' period of two weeks. After obtaining informed consent, baseline physical examination and office blood pressure measurement will be performed. Office blood pressure will be measured according to the guidelines of the European Society on Hypertension and European Society of Cardiology (ESH-ESC practice guidelines) by an experienced physician. Moreover, patients will measure their home blood pressure twice daily: after 5 minutes of sitting quietly, three measures spaced by 1-2 minutes will be taken in the morning and in the evening. For this purpose, an Omron 705 IT device will be provided to the participants; this device has been widely tested in clinical practice and has been validated for use in clinical studies (12).
Throughout the study, the participants will continue his/her regular diet. The goal should be to keep the salt intake as stable as possible during the study, since salt intake alters the R2* signal. Salt intake will be verified each time before BOLD-MRI measurement by a 24h urine collection (dosing volume, creatinine- and sodium-concentration).
To complete the study we decid to test the acute effect of aliskiren 300mg and Esidrex (hydrochlorthiazide) 25mg in 6 healthy volunteers. We will measure the cortical and medullary R2* signal before drug intake and 3 hours after drug administration. Each participant will take the two drugs in a randomised crossover design. A wash-out period of two week between the two administration will be implemented.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Aliskiren | Active comparator | Drug: AliskirenAliskiren 150 to 300 mg once a Week for 8 weeks |
| Hydrochlorothiazide | Active comparator | Drug: HydrochlorothiazideHCTZ 12.5 - 25 mg/d once a day for 8 weeks |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Tolerance to study drugs
- Age > 18 years
- Arteria hypertension stage 1-2 (blood pressure: 140/90 and 180/110 mm Hg)
- Normal renal function
- Availability to give informed consent
Key exclusion criteria (8 listed)
- Intolerance to study drugs
- Renal artery stenosis
- Hyperkalaemia > 5.0 mmol/l
- Contra-indications to the use of PAH, inulin or Lithium
- Asthma
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| AliskirenAlso: RasilezDrug therapy will be started with an initial 2 weeks on Aliskiren 150 mg followed by a titration to 300 mg Aliskiren if the treatment is well tolerated. A first baseline measurements will be performed before initiating therapy and a second after 8 weeks of treatment (24h after last drug intake) to assess the chronic effect. | Drug | Aliskiren |
| HydrochlorothiazideAlso: EsidrexDrug therapy will be started with an initial 2 weeks HCTZ 12.5 mg followed by a titration to 25 mg HCTZ if the treatment is well tolerated. A first baseline measurements will be performed before initiating therapy and a second after 8 weeks of treatment (24h after last drug intake) to assess the chronic effect. | Drug | Hydrochlorothiazide |
Primary outcome
Renal Oxygenation Changes After Chronic Treatment With Aliskiren or Hydrochlorothiazide
Time frame: week 0 vs week 8
Changes in R2* at between week 0 and week 8 as measured by BOLD MRI in the cortex and medulla of the kidney
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Mar 2020.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 20308608Pruijm M, Hofmann L, Maillard M, Tremblay S, Glatz N, Wuerzner G, Burnier M, Vogt B. Effect of sodium loading/depletion on renal oxygenation in young normotensive and hypertensive men. Hypertension. 2010 May;55(5):1116-22. doi: 10.1161/HYPERTENSIONAHA.109.149682. Epub 2010 Mar 22.
- Results publication: PubMed 26501147Vakilzadeh N, Muller ME, Forni V, Milani B, Hoffman L, Piskunowicz M, Maillard M, Zweiacker C, Pruijm M, Burnier M. Comparative Effect of a Renin Inhibitor and a Thiazide Diuretic on Renal Tissue Oxygenation in Hypertensive Patients. Kidney Blood Press Res. 2015;40(5):542-54. doi: 10.1159/000368530. Epub 2015 Oct 26.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Michel Burnier, Professor principal investigator
Centre Hospitalier Universitaire Vaudois
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Aliskiren and Hydrochlorothiazide in people with Hypertension, run by Centre Hospitalier Universitaire Vaudois at 1 site in Switzerland.
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 5 inclusion and 8 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 17 Mar 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Switzerland. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 6 Sep 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Renal Oxygenation Changes After Chronic Treatment With Aliskiren or Hydrochlorothiazide (time frame: week 0 vs week 8). 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 NCT01519635, which also lists 2 linked publications.
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 17 Mar 2020.