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Congestive Heart FailureKaRenNCT01091467

Prospective Study of Heart Failure With Preserved Left Ventricular Ejection Fraction

An observational study of Congestive Heart Failure and Left Ventricular Ejection Fraction, run by French Cardiology Society at 2 sites in 2 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

The purpose of this study is to examine electrical and echocardiographic characteristics and prognosis of consecutive patients admitted with acute heart failure and diagnosed to have heart failure with preserved ejection fraction (HFPEF). Read more about this study

Who is it for?
Ages 18 years and older
How many people
362 participants
Where
2 sitesin 2 countries
Study dates
Oct 2008to Dec 2012
Phase
Observational
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

Study population: Patients presenting to the hospital with congestive heart failure

Who may be able to join

  • Patient presenting to the hospital with congestive heart failure, defined as:
  • Clinical signs of heart failure
  • Major criteria
  • Paroxysmal nocturnal dyspnea
  • Orthopnea
  • Jugular venous distension
Show all 20Show fewer
  • Pulmonary crackling rales
  • 3rd heart sound
  • Cardiothoracic ratio > 0.5 on X-ray
  • Pulmonary oedema on X-ray
  • Minor Criteria
  • peripheral oedema
  • nocturnal cough
  • dyspnoea at exercise
  • hepatomegaly
  • pleural effusion
  • tachycardia (defined as ≥ 100 beats per minute)
  • Heart failure if: presence of 2 major criteria or 1 major + 2 minor criteria
  • LVEF ≥ 45% by echocardiography within 72h
  • BNP > 100 ng/L or NT-proBNP > 300 ng/L

Who cannot join

  • Evidence of primary hypertrophic or restrictive cardiomyopathy or systemic illness known to be associated with infiltrative heart disease
  • Known cause of right heart failure not related to left ventricular dysfunction
  • Pericardial constriction
  • Clinically significant pulmonary disease, as evidenced by requirement of home oxygen.
  • End-stage renal disease requiring dialysis
  • Bi-ventricular pacemaker (CRT)

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

France1 site
  • Pontchaillou Hospital

    Rennes, 35000

Other trials in France

Sweden1 site
  • Karolinska University Hospital

    Stockholm

Other trials in Sweden

About this study

Official title: Prospective Study of Heart Failure With Preserved Left Ventricular Ejection Fraction: Prevalence, Characterisation and Prognostic Significance of Cardiac Desynchrony

The purpose of this study is to examine electrical and echocardiographic characteristics and prognosis of consecutive patients admitted with acute heart failure and diagnosed to have heart failure with preserved ejection fraction (HFPEF).

Read the detailed description
  • Time 0: Patients will be screened at the time of presentation to the hospital at participating centres
  • Usually patients will be hospitalised for an acute dyspnea in relation with a pulmonary congestion. This congestion does not necessarily justify a hospitalization and for part of the patients a consultation and a dedicated treatment would be good enough to cure the symptoms.
  • Thus, patients seen in emergency for a congestion and diagnosed or known to have a preserved left ventricular ejection fraction (LV EF > 45%) will be proposed to participate to the study.
  • Patients meeting inclusion criteria will be invited back to the clinic in stable condition, approximately 4-8 weeks after the initial hospitalization.
  • Time 4-8 weeks after initial hospitalisation (NOT after discharge): Comprehensive history-taking and examinations.
  • Any information necessary for the study will be collected by the principal investigator in each participating center in a dedicated, secure, e-CRF. The access to the e-CRF will be restrictive to the only principal investigator of each center. The lonely other persons able to take look to the e-CRF are the study monitors.
  • Time 6, 12, and 18 months: Follow up by phone call or review of charts or other records such as death registries. This part of the study will be performed by the CRAs in the French Society of Cardiology
Keywords
Heart Failure, Ejection Fraction, Echocardiography
Medical subject headings
Heart Failure

What participants receive

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

Study groups in NCT01091467
Study groupRoleWhat they receive
Patients with HFEach patient seen in hospital emergency or for congestive heart failure and with an ejection fraction above 45%

What is being measured

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

  1. Death rate

    Analyse survival (all-cause death)

    Measured: 18 months

Secondary outcomes (2)
  1. Hospitalization for HF

    Hospitalization for Heart Failure

    Measured: 18 months

  2. Cardiovascular death

    Cardiovascular death

    Measured: 18 months

Timeline

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

  1. First posted24 Mar 2010 (estimated)
  2. Study startOct 2008
  3. Primary completionDec 2012
  4. Study completionDec 2012

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
362 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01091467
Sponsor's protocol ID
08140
Acronym
KaRen
Status last verified
Aug 2019
First submitted
8 Mar 2010
Last updated
8 Aug 2019
Results posted
No
Data monitoring committee
Yes

Publications

  • Donal E, Lund LH, Linde C, Edner M, Lafitte S, Persson H, Bauer F, Ohrvik J, Ennezat PV, Hage C, Lofman I, Juilliere Y, Logeart D, Derumeaux G, Gueret P, Daubert JC. Rationale and design of the Karolinska-Rennes (KaRen) prospective study of dyssynchrony in heart failure with preserved ejection fraction. Eur J Heart Fail. 2009 Feb;11(2):198-204. doi: 10.1093/eurjhf/hfn025.

    PubMed 19168519
  • Donal E, Lund L, Linde C, Daubert JC; KaRen investigators. Is cardiac resynchronization therapy an option in heart failure patients with preserved ejection fraction? Justification for the ongoing KaRen project. Arch Cardiovasc Dis. 2010 Jun-Jul;103(6-7):404-10. doi: 10.1016/j.acvd.2010.01.009. Epub 2010 Jun 23.

    PubMed 20800804
  • Donal E, Lund LH, Oger E, Hage C, Persson H, Reynaud A, Ennezat PV, Bauer F, Sportouch-Dukhan C, Drouet E, Daubert JC, Linde C; KaRen Investigators. Baseline characteristics of patients with heart failure and preserved ejection fraction included in the Karolinska Rennes (KaRen) study. Arch Cardiovasc Dis. 2014 Feb;107(2):112-21. doi: 10.1016/j.acvd.2013.11.002. Epub 2013 Dec 30.

    PubMed 24388161
  • Lund LH, Donal E, Oger E, Hage C, Persson H, Haugen-Lofman I, Ennezat PV, Sportouch-Dukhan C, Drouet E, Daubert JC, Linde C; KaRen Investigators. Association between cardiovascular vs. non-cardiovascular co-morbidities and outcomes in heart failure with preserved ejection fraction. Eur J Heart Fail. 2014 Sep;16(9):992-1001. doi: 10.1002/ejhf.137. Epub 2014 Jul 21.

    PubMed 25046483
  • Donal E, Lund LH, Oger E, Hage C, Persson H, Reynaud A, Ennezat PV, Bauer F, Drouet E, Linde C, Daubert C; KaRen investigators. New echocardiographic predictors of clinical outcome in patients presenting with heart failure and a preserved left ventricular ejection fraction: a subanalysis of the Ka (Karolinska) Ren (Rennes) Study. Eur J Heart Fail. 2015 Jul;17(7):680-8. doi: 10.1002/ejhf.291. Epub 2015 May 29.

    PubMed 26033771
  • Donal E, Lund LH, Oger E, Reynaud A, Schnell F, Persson H, Drouet E, Linde C, Daubert C; KaRen investigators. Value of exercise echocardiography in heart failure with preserved ejection fraction: a substudy from the KaRen study. Eur Heart J Cardiovasc Imaging. 2016 Jan;17(1):106-13. doi: 10.1093/ehjci/jev144. Epub 2015 Jun 16.

    PubMed 26082167
  • Hage C, Lund LH, Donal E, Daubert JC, Linde C, Mellbin L. Copeptin in patients with heart failure and preserved ejection fraction: a report from the prospective KaRen-study. Open Heart. 2015 Nov 3;2(1):e000260. doi: 10.1136/openhrt-2015-000260. eCollection 2015.

    PubMed 26568833
  • Savarese G, Donal E, Hage C, Oger E, Persson H, Daubert JC, Linde C, Lund LH; KaRen investigators. Changes in natriuretic peptides after acute hospital presentation for heart failure with preserved ejection fraction: A feasible surrogate trial endpoint? A report from the prospective Karen study. Int J Cardiol. 2017 Jan 1;226:65-70. doi: 10.1016/j.ijcard.2016.10.035. Epub 2016 Oct 17.

    PubMed 27788392
  • Bosseau C, Donal E, Lund LH, Oger E, Hage C, Mulak G, Daubert JC, Linde C; KaRen investigators. The prognostic significance of atrial fibrillation in heart failure with preserved ejection function: insights from KaRen, a prospective and multicenter study. Heart Vessels. 2017 Jun;32(6):735-749. doi: 10.1007/s00380-016-0933-8. Epub 2016 Dec 27.

    PubMed 28028584
  • Hage C, Michaelsson E, Linde C, Donal E, Daubert JC, Gan LM, Lund LH. Inflammatory Biomarkers Predict Heart Failure Severity and Prognosis in Patients With Heart Failure With Preserved Ejection Fraction: A Holistic Proteomic Approach. Circ Cardiovasc Genet. 2017 Feb;10(1):e001633. doi: 10.1161/CIRCGENETICS.116.001633.

    PubMed 28100627
  • Donal E, Lund LH, Oger E, Bosseau C, Reynaud A, Hage C, Drouet E, Daubert JC, Linde C; KaRen Investigators. Importance of combined left atrial size and estimated pulmonary pressure for clinical outcome in patients presenting with heart failure with preserved ejection fraction. Eur Heart J Cardiovasc Imaging. 2017 Jun 1;18(6):629-635. doi: 10.1093/ehjci/jex005.

    PubMed 28329385
  • Nagy AI, Hage C, Merkely B, Donal E, Daubert JC, Linde C, Lund LH, Manouras A. Left atrial rather than left ventricular impaired mechanics are associated with the pro-fibrotic ST2 marker and outcomes in heart failure with preserved ejection fraction. J Intern Med. 2018 Apr;283(4):380-391. doi: 10.1111/joim.12723. Epub 2018 Feb 12.

    PubMed 29430747
  • Savarese G, Donal E, Hage C, Oger E, Persson H, Daubert JC, Linde C, Lund LH; KaRen investigators. Corrigendum to "Changes in natriuretic peptides after acute hospital presentation for heart failure with preserved ejection fraction: A feasible surrogate trial endpoint? A report from the prospective Karen study" [Int. J. Cardiol. 226 (2017) 65-70]. Int J Cardiol. 2018 Jun 15;261:240. doi: 10.1016/j.ijcard.2018.03.075. Epub 2018 Mar 27. No abstract available.

    PubMed 29602583
  • Faxen UL, Hage C, Donal E, Daubert JC, Linde C, Lund LH. Patient reported outcome in HFpEF: Sex-specific differences in quality of life and association with outcome. Int J Cardiol. 2018 Sep 15;267:128-132. doi: 10.1016/j.ijcard.2018.04.102.

    PubMed 29957252
  • Persson H, Donal E, Lund LH, Matan D, Oger E, Hage C, Daubert JC, Linde C; KaRen Investigators. Importance of structural heart disease and diastolic dysfunction in heart failure with preserved ejection fraction assessed according to the ESC guidelines - A substudy in the Ka (Karolinska) Ren (Rennes) study. Int J Cardiol. 2019 Jan 1;274:202-207. doi: 10.1016/j.ijcard.2018.06.078. Epub 2018 Jun 20.

    PubMed 30049496

Questions about this trial

What is this clinical trial studying?

An observational study of Congestive Heart Failure and Left Ventricular Ejection Fraction, run by French Cardiology Society at 2 sites in 2 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 20 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 8 Aug 2019. 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 France, Sweden. 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.

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?

Death rate (time frame: 18 months). 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 NCT01091467, which also lists 18 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 8 Aug 2019.

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