RIMINI-Pilot: Reduction of Ischemic Myocardium With Ranolazine-Treatment in Patients With Acute Myocardial Ischemia

Sponsor
Universitätsklinikum Hamburg-Eppendorf (Other)
Overall Status
Completed
CT.gov ID
NCT01797484
Collaborator
(none)
20
1
2
22
0.9

Study Details

Study Description

Brief Summary

The aim of the RIMINI-Trial is to examine the effect of Ranolazine on ischemic myocardium in acute myocardial ischemia.

A pilot-trial by Venkatamaran et al. recently demonstrated, that the area of ischemic myocardium in patients with stable coronary artery disease can be reduced by Ranolazine-treatment2. This effect was shown by significantly reduced areas of atypical or dysfunctional myocardium in SPECT-examinations.

The dimension of myocardial damage (i.e. area of ischemic myocardium) is directly related to the rate of complications (i.e. left-ventricular pump failure, malignant arrhythmia) and the grade of Rehabilitation to daily life (i.e. persistent reduced left-ventricular ejection fraction).

In patients with stable angina pectoris, Ranolazine is used with beneficial results1. Ranolazine improves diastolic blood flow and therefore microcirculation in the myocardium by reducing diastolic tension (via inhibiting late Na+-Influx and consecutive Ca2+-Overload).

Recently published data2 showed that treatment with Ranolazine significantly reduces the ischemic area in chronic damaged myocardium. This is due the effect of improved microcirculation in hibernating myocardium.

Early administration of Ranolazine and improvement of microcirculation in patients with acute damaged myocardium (i.e. directly after acute ischemia) should lead to a recruitment and re-uptake of cardiac activity of hibernating myocardium.

For the RIMINI-Trial patients are given Ranolazine on top of the guideline-based treatment to reduce the area of acute ischemic myocardium.

Patients with unstable angina pectoris and proof of acute cardiac ischemia, proof of myocardial dyskinesia and angina pectoris in the patient history will receive unaltered guideline-based therapy for acute cardiac ischemia5,6. All necessary procedures will be performed to stabilize patients to a hemodynamically compensated state and patients are then transferred to receive cardiac catheterization (angiography and angioplasty if necessary).

After patients are stabilized Ranolazine will be given additionally to guideline based medication.

The measurement of the ischemic myocardial area will be done via three functional echocardiographies with speckle tracking technique10.

A statistical evaluation of ischemic myocardial area before and after treatment with Ranolazine/Placebo will be done after conclusion of the RIMINI-Trial to show the effect of Ranolazine in acute myocardial ischemia.

Condition or Disease Intervention/Treatment Phase
Phase 2/Phase 3

Detailed Description

The aim of the RIMINI-Trial is to examine the effect of Ranolazine on ischemic myocardium in acute myocardial ischemia.

A pilot-trial by Venkatamaran et al. recently demonstrated, that the area of ischemic myocardium in patients with stable coronary artery disease can be reduced by Ranolazine-treatment2. This effect was shown by significantly reduced areas of atypical or dysfunctional myocardium in SPECT-examinations.

The dimension of myocardial damage (i.e. area of ischemic myocardium) is directly related to:
  1. Rate of complications (i.e. left-ventricular pump failure, malignant arrhythmia)

  2. Grade of Rehabilitation to daily life (i.e. persistent reduced left-ventricular ejection fraction)

Early angioplasty and coronary medication are key factors for preventing complications and ensuring sufficient rehabilitation. This is done to reduce the ischemic area as best as possible.

In patients with stable angina pectoris, Ranolazine is used with beneficial results1. Ranolazine improves diastolic blood flow and therefore microcirculation in the myocardium by reducing diastolic tension (via inhibiting late Na+-Influx and consecutive Ca2+-Overload).

Recently published data2 showed that treatment with Ranolazine significantly reduces the ischemic area in chronic damaged myocardium. This is due the effect of improved microcirculation in hibernating myocardium.

Early administration of Ranolazine and improvement of microcirculation in patients with acute damaged myocardium (i.e. directly after acute ischemia) should lead to a recruitment and re-uptake of cardiac activity of hibernating myocardium.

For the RIMINI-Trial patients are given Ranolazine on top of the guideline-based treatment to reduce the area of acute ischemic myocardium.

Patients with unstable angina pectoris and proof of acute cardiac ischemia (Serum levels of Troponin-T-hs >14 pg/ml), proof of myocardial dyskinesia and angina pectoris >/=CCS II (Canadian Cardiovascular Society Classification of Angina Pectoris) in the patient history will receive unaltered guideline-based therapy for acute cardiac ischemia5,6. All necessary procedures will be performed to stabilize patients to a hemodynamically compensated state (normalized levels of blood pressure, heart rate, absent malignant arrhythmia, dyspnoea and angina-like symptoms), and patients are then transferred to receive cardiac catheterization (angiography and angioplasty if necessary).

After patients are stabilized (i.e. via angioplasty, medical treatment) Ranolazine will be given additionally to guideline-based medication (Beta-Blocker, ACE-Inhibitor or AT1-Inhibitor, ASS, Clopidogrel, Statins).

The measurement of the ischemic myocardial area will be done via three functional echocardiographies with speckle tracking technique10 (speckle -tracking echocardiography,

SPE):
  1. The first speckle tracking for screening and will be done directly with patients presenting in the emergency room.

  2. After stabilization and coronary angiography or -plasty and before the first dose of Ranolazine is given, the second speckle tracking will be done for baseline.

  3. After 42 days of Ranolazine-treatment the third and final speckle tracking echocardiography will be done.

A statistical evaluation of ischemic myocardial area before and after treatment with Ranolazine/Placebo will be done after conclusion of the RIMINI-Trial to show the effect of Ranolazine in acute myocardial ischemia.

For controlling and comparing the effect, the RIMINI-Trial will be single-blinded and compared to a group of patients not treated with Ranolazine. Participants will be randomized to the treatment-group or the no-treatment-group using a computer based randomization-method.

Study Design

Study Type:
Interventional
Actual Enrollment :
20 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Single (Outcomes Assessor)
Primary Purpose:
Treatment
Official Title:
Reduction of Ischemic Myocardium With Ranolazine-Treatment in Patients With Acute Myocardial Ischemia
Study Start Date :
Aug 1, 2013
Actual Primary Completion Date :
Jun 1, 2015
Actual Study Completion Date :
Jun 1, 2015

Arms and Interventions

Arm Intervention/Treatment
Active Comparator: Ranolazine

Ranolazine 500mg bid orally 7 days Ranolazine 750mg bid orally 35 days

Drug: Ranolazine
Improvement of myocardial microcirculation
Other Names:
  • Ranexa
  • No Intervention: No additional medication

    No additional medication - control group

    Outcome Measures

    Primary Outcome Measures

    1. Left Ventricular Global Strain Rate [42 days after first dose of Ranolazine]

      Relativ acceleration or deceleration (1/s) of left ventricular myocardial sections compared to direct opposite section. The more positive the value, the more simultaneously the movements, the more hemodynamically better.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • Proof of acute cardiac ischemia by elevated serum Troponin T-hs levels > 14 pg/nl

    • Proof of myocardial dyskinesia with functional echocardiography ("speckle tracking")

    • Stable angina pectoris >/= CCS II in patient history

    • Stabilized (i.e. normalized vital parameters) patients after coronary angioplasty or angiography

    • Coronary angioplasty or angiography not older than 24 hours

    • Written informed consent

    • Established standard therapy for coronary artery disease (i.e. Beta-Blocker, ACE-Inhibitor or AT1-Inhibitor, ASS, Clopidogrel, Statins)

    Exclusion Criteria:
    • Patients younger than 18 years of age

    • Acute cardio-pulmonary decompensation

    • Middle and high grade liver insufficiency (Child-Pugh Score B and C)

    • High grade renal insufficiency (Creatinine-Clearance < 30 ml/min)

    • Concomitant treatment with potent inhibitors of CYP3A4

    • Concomitant administration of class Ia (e.g. quinidine) or class III (e.g. dofetilide, sotalol) antiarrhythmics, except for amiodarone

    • Concomitant administration of > 20 mg simvastatin/day

    • Patients with heart failure classification NYHA III and NYHA IV

    • Homeless patients and drug-addicted patients

    • Pregnant and/or breast-feeding women

    • Treatment with Ranolazine prior to enrolment in RIMINI-Trial

    • Allergy against Ranolazine

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 University Heart Center Hamburg Eppendorf Hamburg Germany 20246

    Sponsors and Collaborators

    • Universitätsklinikum Hamburg-Eppendorf

    Investigators

    • Principal Investigator: Stefan Blankenberg, Prof. Dr., Director of University Heart Center Hamburg Eppendorf

    Study Documents (Full-Text)

    None provided.

    More Information

    Additional Information:

    Publications

    Responsible Party:
    Tjark Frederik Schwemer, Dr. med., Universitätsklinikum Hamburg-Eppendorf
    ClinicalTrials.gov Identifier:
    NCT01797484
    Other Study ID Numbers:
    • UHZ-KARD-01-2013
    First Posted:
    Feb 22, 2013
    Last Update Posted:
    Jan 12, 2018
    Last Verified:
    Jan 1, 2018
    Individual Participant Data (IPD) Sharing Statement:
    Yes
    Plan to Share IPD:
    Yes
    Keywords provided by Tjark Frederik Schwemer, Dr. med., Universitätsklinikum Hamburg-Eppendorf
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details first patient enrolled: 05-Aug-2013 last patient finished: 05-Jun-2015 All patients were enrolled at University Heart Centre Hamburg Eppendorf
    Pre-assignment Detail
    Arm/Group Title Ranolazine No Additional Medication
    Arm/Group Description Ranolazine 500mg bid orally 7 days Ranolazine 750mg bid orally 35 days Ranolazine: Improvement of myocardial microcirculation No additional medication - control group
    Period Title: Overall Study
    STARTED 10 10
    COMPLETED 10 10
    NOT COMPLETED 0 0

    Baseline Characteristics

    Arm/Group Title Ranolazine No Additional Medication Total
    Arm/Group Description Ranolazine 500mg bid orally 7 days Ranolazine 750mg bid orally 35 days Ranolazine: Improvement of myocardial microcirculation No additional medication - control group Total of all reporting groups
    Overall Participants 10 10 20
    Age (years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [years]
    68
    (9)
    72
    (7)
    70
    (8)
    Sex: Female, Male (Count of Participants)
    Female
    4
    40%
    5
    50%
    9
    45%
    Male
    6
    60%
    5
    50%
    11
    55%

    Outcome Measures

    1. Primary Outcome
    Title Left Ventricular Global Strain Rate
    Description Relativ acceleration or deceleration (1/s) of left ventricular myocardial sections compared to direct opposite section. The more positive the value, the more simultaneously the movements, the more hemodynamically better.
    Time Frame 42 days after first dose of Ranolazine

    Outcome Measure Data

    Analysis Population Description
    Secondary Outcome Measure data was not collected. Initially planned secondary outcome (e.g. cardiac events) was found to interfere with monitoring drug safety
    Arm/Group Title Ranolazine No Additional Medication
    Arm/Group Description Ranolazine 500mg bid orally 7 days Ranolazine 750mg bid orally 35 days Ranolazine: Improvement of myocardial microcirculation No additional medication - control group
    Measure Participants 10 10
    Mean (Standard Deviation) [percentage of change]
    18
    (2)
    23
    (3)

    Adverse Events

    Time Frame
    Adverse Event Reporting Description
    Arm/Group Title Ranolazine No Additional Medication
    Arm/Group Description Ranolazine 500mg bid orally 7 days Ranolazine 750mg bid orally 35 days Ranolazine: Improvement of myocardial microcirculation No additional medication - control group
    All Cause Mortality
    Ranolazine No Additional Medication
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total / (NaN) / (NaN)
    Serious Adverse Events
    Ranolazine No Additional Medication
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/10 (0%) 0/10 (0%)
    Other (Not Including Serious) Adverse Events
    Ranolazine No Additional Medication
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/10 (0%) 0/10 (0%)

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

    All Principal Investigators ARE employed by the organization sponsoring the study.

    There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

    Results Point of Contact

    Name/Title Dr. Tjark F. Schwemer
    Organization University Heart Centre Hamburg Eppendorf
    Phone +49 40 7410 ext 56800
    Email t.schwemer@uke.de
    Responsible Party:
    Tjark Frederik Schwemer, Dr. med., Universitätsklinikum Hamburg-Eppendorf
    ClinicalTrials.gov Identifier:
    NCT01797484
    Other Study ID Numbers:
    • UHZ-KARD-01-2013
    First Posted:
    Feb 22, 2013
    Last Update Posted:
    Jan 12, 2018
    Last Verified:
    Jan 1, 2018