Ivabradine for Heart Rate Control In Septic Shock
IRISS
A Multicenter, Prospective, Randomized, Placebo-controlled, Double-blind, Multi-arm, Multi-stage Clinical Trial of Ivabradine for Heart Rate Control In Septic Shock
2 other identifiers
interventional
429
1 country
1
Brief Summary
Septic shock is a major health problem, with several million cases annually worldwide and a mortality approaching 45%. Tachycardia is associated with excess mortality during septic shock. This pejorative effect could be related to the increase in cardiac metabolic demand, impaired cardiac diastolic function, and/or poorer tolerance of administered exogenous catecholamines. Recent studies suggest that controlling the heart rate with the use of beta blockers has beneficial effects on the morbidity and mortality of septic shock. However, the negative effects of beta-blockers on cardiac contractility and blood pressure complicate their use during septic shock, particularly because about one-half of patients exhibit a septic-associated systolic dysfunction, which often requires the use of inotropes. Ivabradine is a selective inhibitor of If channels in the sinoatrial node. It is a pure bradycardic agent with no deleterious effect on other aspects of cardiac function (contractility, conduction and repolarization) nor on blood pressure. Ivabradine can therefore alleviate sinus tachycardia without negative inotropic effects nor hypotension. Moreover, the improvement in diastolic function (ventricular filling) with ivabradine may increase stroke volume, even in case of severe impairment of systolic function. Controlling sinus tachycardia with ivabradine during septic shock would allow reducing cardiac metabolic demand (and potentially associated ischemic events) and improving the chronotropic tolerance of exogenous catecholamines. The effectiveness of ivabradine in controlling the heart rate was demonstrated in various clinical settings such as coronary artery disease, chronic heart failure and cardiogenic shock. Encouraging preliminary data are reported in critically ill patients.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Feb 2021
Longer than P75 for phase_3
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 16, 2019
CompletedFirst Posted
Study publicly available on registry
July 24, 2019
CompletedStudy Start
First participant enrolled
February 26, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 19, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
April 22, 2026
CompletedMarch 23, 2026
May 1, 2025
5 years
July 16, 2019
March 19, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Percentage of patients with heart rate within the predefined threshold (80-94 bpm) at hour-48
for activity and treatment selection at interim analysis
hour 48 after treatment
Percentage of patients dead at 28 days
for efficacy and the final analysis
28 days
Secondary Outcomes (8)
percentage of patients with bradycardia (heart rate <60/min), atrial fibrillation, phosphenes or blurred vision up to day-17
Day 17
Percentage of patients with a heart rate within the target range (80-94 bpm) at hour-72
hour-72
Organ failures free days (SOFA<3 for each organ) at day-14 and day-28,
at day-14 and day-28
Number of catecholamines-, vasopressor- and mechanical ventilation-free days at day-14 and day-28,
at day-14 and day-28
lactate clearance
at day-2 and day-3;
- +3 more secondary outcomes
Study Arms (3)
Ivabradine (Low)
EXPERIMENTALIvabradine (High)
EXPERIMENTALControl
PLACEBO COMPARATORInterventions
Ivabradine will be administered via the enteral route, every 12 hours, at doses ranging from 2.5 to 5 mg to achieve a target heart rate between 80 and 94 bpm
Eligibility Criteria
You may qualify if:
- years of age or older,
- Proven or suspected site of infection,
- In sinus rhythm with heart rate ≥ 95 bpm at time of randomization,
- Informed consent obtained in accordance with local regulations,
- Affiliation to a social security regime.
You may not qualify if:
- Age \< 18 years,
- Cardiac arythmia, conduction disorder, sinus syndrome ("sick sinus syndrome"), sino-atrial block; 3rd degree atrioventricular block, "IRISS" protocol, version 6.0 of 30/10/2023 7/47 This document is the property of DRCD / APHP. All reproduction is strictly prohibited.
- Cardiogenic shock or unstable or acute heart failure without proven or suspected infection,
- Acute myocardial infarction with angiographic documentation; CCS class
- ≥ II angina pectoris;
- Septic shock requiring vasopressor treatment for more than 24 hours,
- Refractory shock with systolic arterial pressure \<90 mm Hg) despite the use of high doses of vasopressors (norepinephrine BASE or epinephrine BASE \> 2.4 µg/kg/min; these doses should be multiplied by two for noradrenaline salt (tartrate or bitartrate),
- Co-treatment with drugs inducing bradycardia, QT lengthening or strong inhibition of CYP4503A4, pacemaker, defibrillator, kalemia \<3 mM,
- Co-treatment with verapamil or diltiazem (which are moderate CYP4503A4 inhibitors with heart rate reducing properties)
- Known pregnancy, breast feeding, women with childbearing potential will be tested for pregnancy and excluded if pregnant,
- Known allergy to ivabradine or to any of the excipients, retinitis pigmentosa, congenital galactosemia, lactase deficiency, glucose or galactose malabsorption,
- Severe chronic renal failure (creatinine clearance \<15 ml/min) or hepatic failure (prothrombin time \<20%),
- Enteral feeding impossible, vomiting, congenital galactosemia, lactase deficiency, glucose-galactose malabsorption syndrome,
- Tachycardia due to hyperthyroidism, pheochromocytoma or severe anemia (\<7 g/dL),
- Prior enrolment in the trial, participation in another interventional study on septic shock,
- +4 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Henri Mondor Hospital
Créteil, 94000, France
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Armand MEKONTSO DESSAP, MD, PhD
Assistance Publique - Hôpitaux de Paris
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 16, 2019
First Posted
July 24, 2019
Study Start
February 26, 2021
Primary Completion
February 19, 2026
Study Completion
April 22, 2026
Last Updated
March 23, 2026
Record last verified: 2025-05