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Renal AlterationPhase 3RPPECNCT01095939

Post-preeclampsia Renal Project: Study of Nephroprotection in Women Having Suffered Preeclampsia

A Phase 3 study testing Benazepril hydrochloride in people with Renal Alteration, run by University Hospital, Geneva at 2 sites in Switzerland.

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

The purpose of the Post-preeclampsia Renal Project is to investigate the renal function of preeclamptic women after delivery, and to determine whether the anti-hypertensive drug named benazepril efficiently improves the dysfunctions observed. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Renal Alteration
What is being tested?
Benazepril hydrochloride
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
120 participants
Where
2 sitesSwitzerland
Study dates
Apr 2010to Mar 2018
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
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Clearance of creatinine ≤ 80 ml/min (Gault et Cockcroft)
  • Serum creatinine ≥ 80 µmol/L
  • Microalbuminuria comprised between 30 and 300 mg/d and/or a urinary spot with microalbuminuria/creatinine ratio ≥ 3.5 and/or macroalbuminuria (24h urinary albumin excretion ≥ 0.500 mg)
  • BP ≥ 140/90 mm Hg OR ongoing antihypertensive treatment
  • CRP ≥ 4 mg/dL

Who cannot join

  • Those unlikely to co-operate in the study
  • Those who refuse to use appropriate contraceptive measures during the treatment period (intrauterine device, oral contraceptives, condom, diaphragm)
  • Those with a history of pre-term delivery
  • Those with known history of severe allergic reaction
  • Those who consume drugs
  • Aged < 18 years old

Trial locations and contacts

2 sites in 1 country.

Switzerland2 sites
  • Geneva University Hospitals

    Geneva

  • Centre Hospitalier Universitaire Vaudois

    Lausanne

Other trials in Switzerland

About this study

Official title: A Randomized, Double-blind, Placebo-controlled Clinical Trial to Evaluate the Efficacy and Safety of Benazepril (ATC N° C09AA07) in the Treatment of Persistent Renal Dysfunction in Pre-eclamptic Women

The purpose of the Post-preeclampsia Renal Project is to investigate the renal function of preeclamptic women after delivery, and to determine whether the anti-hypertensive drug named benazepril efficiently improves the dysfunctions observed.

Read the detailed description

Several epidemiological studies suggest that the risk of death from cardiovascular causes among women with preeclampsia may be increased, and that preeclampsia contrary to what has been long thought, is not cured with delivery. Preeclampsia has long been considered a 2-stage disease, stage one corresponding to an impaired placental perfusion resulting from abnormal spiral artery remodeling, and stage two corresponding to the maternal manifestations of disease, characterized by hypertension and proteinuria. However, preeclampsia might include an additional, 3rd stage, that of the post-partum period (Gammill \& Roberts, 2007) This phase deserves to be investigated. In particular, it is crucial to determine whether the changes that occur in renal hemodynamics during preeclampsia are reversible after more than 6 weeks, and whether PEC women are salt-sensitive after delivery.

The link between chronic kidney disease and cardiovascular mortality is well established. An independent, graded association exists between a reduced GFR and the risk of death, cardiovascular events, and hospitalization (Go et al, 2004). Besides, salt-sensitivity is associated with an increased cardiovascular and renal risk (Franco \& Oparil, 2006). The Renal Post PEC study aims at establishing if the renal dysfunctions that occur in PEC women can be reversed by the administration of inhibitors of the renin-angiotensin system that are known to improve cardiovascular and renal risk profiles in hypertensive patients. By virtue of their potent renal vasodilatory properties and favourable remodelling of the GBM, ACE inhibitors may improve salt-sensitivity, endothelial function, renal plasma flow and GFR, and general renal prognosis in women who experienced from preeclampsia.

Being tested
Placebo, Benazepril hydrochloride
Keywords
Renal function consecutive to pre-eclampsia

What participants receive

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

  • PlaceboDrug

    Tablets; oral administration; once a day for 6 months. After this period of 6 months blinded treatment, the treatment will be stopped for 2 weeks. At the end of this washout period, a new renal evaluation is done. At that time, opened label treatment will be proposed to the women who still show renal alterations after a 2 weeks washout period

  • Benazepril hydrochlorideDrug

    Also called Cibacen, Lotensin, ATC: C09AA07

    Tablets (10 or 20 mg); oral administration; once a day for 6 months. After this period of 6 months blinded treatment, the treatment will be stopped for 2 weeks. At the end of this washout period, a new renal evaluation is done. At that time, opened label treatment will be proposed to the women who still show renal alterations after a 2 weeks washout period

Study groups in NCT01095939
Study groupRoleWhat they receive
Control ArmPlacebo comparatorNot described
Receives: Drug: Placebo
BenazeprilExperimentalNot described
Receives: Drug: Benazepril hydrochloride

What is being measured

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

  1. microalbuminuria excretion rate (spot or 24h)

    Measured: Baseline; 1 week + 24 weeks after treatment start

  2. eGFR

    Measured: Baseline; 1 week + 24 weeks after treatment start

Secondary outcomes (4)
  1. Filtration fraction %

    Measured: Baseline; 1 week + 24 weeks after treatment start

  2. 24h Ambulatory Blood Pressure

    Mean; diurnal; nocturnal

    Measured: Baseline; 1 week and 24 weeks after treatment start

  3. Effective Renal Plasma Flow

    Measured: Baseline; 1 week and 48 weeks after treatment start

  4. Adverse Events

    Measured: From signature of informed consent until last follow-up visit (36 months after treatment start)

Timeline

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

  1. First posted30 Mar 2010 (estimated)
  2. Study startApr 2010
  3. Primary completionDec 2015
  4. Study completionMar 2018

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
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
120 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01095939
Sponsor's protocol ID
09-136
Acronym
RPPEC
Status last verified
Apr 2018
First submitted
29 Mar 2010
Last updated
1 May 2018
Results posted
No
Data monitoring committee
No

Publications

  • Ditisheim A, Wuerzner G, Ponte B, Vial Y, Irion O, Burnier M, Boulvain M, Pechere-Bertschi A. Prevalence of Hypertensive Phenotypes After Preeclampsia: A Prospective Cohort Study. Hypertension. 2018 Jan;71(1):103-109. doi: 10.1161/HYPERTENSIONAHA.117.09799. Epub 2017 Nov 13.

    PubMed 29133363

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Benazepril hydrochloride in people with Renal Alteration, run by University Hospital, Geneva at 2 sites 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 6 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 1 May 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites 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. Some participants in this study may receive a placebo. 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?

microalbuminuria excretion rate (spot or 24h) (time frame: Baseline; 1 week + 24 weeks after treatment start). The study lists 2 primary outcomes in all. 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 NCT01095939, 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 1 May 2018.

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