NCT06279793

Brief Summary

The MODIFY CSX study is a prospective, randomized, placebo-controlled trial conducted in heart centers in Germany and Italy. A total of 550 high-risk cardiac surgery patients will receive either 0.20 g fish oil/kg body weight (BW) + standard of care versus same volume of placebo (NaCl) + standard of care.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
550

participants targeted

Target at P75+ for phase_2

Timeline
53mo left

Started Feb 2024

Longer than P75 for phase_2

Geographic Reach
1 country

10 active sites

Status
recruiting

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

Study Progress34%
Feb 2024Sep 2030

First Submitted

Initial submission to the registry

September 13, 2023

Completed
5 months until next milestone

Study Start

First participant enrolled

February 15, 2024

Completed
13 days until next milestone

First Posted

Study publicly available on registry

February 28, 2024

Completed
6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2030

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2030

Last Updated

February 23, 2026

Status Verified

January 1, 2026

Enrollment Period

6 years

First QC Date

September 13, 2023

Last Update Submit

February 19, 2026

Conditions

Keywords

intensive care unitelective cardiac surgeryfish oilmedical nutrition therapyatrial fibrillationatrial flutteratrial tachycardia

Outcome Measures

Primary Outcomes (1)

  • Atrial fibrillation

    The primary objective is to demonstrate superiority of fish oil compared to placebo in the prevention of atrial fibrillation until 7 days after surgery. This clinical endpoint is assessed as part of the clinical practice.

    Postoperative days 0-7

Secondary Outcomes (19)

  • Mechanical ventilation

    Postoperative days 0-7, ICU discharge (approximately 3-4 days after surgery), hospital discharge (approximately 1-2 weeks after surgery), day 30 follow-up

  • Adverse Events

    Preoperative day -1 to 12 months follow-up

  • Delta Sequential Organ Failure Assessment Score (SOFA) Score

    Postoperative days 0-7

  • Stroke

    Postoperative days 0-7

  • Inotropics/vasopressors

    Postoperative days 0-7, ICU discharge (approximately 3-4 days after surgery), hospital discharge (approximately 1-2 weeks after surgery), day 30 follow-up

  • +14 more secondary outcomes

Other Outcomes (15)

  • Optional tertiary endpoint: Ultrasound measurement of thigh skeletal muscle mass

    Screening (preoperative day -7 until day -1), ICU discharge (approximately 3-4 days after surgery), hospital discharge (approximately 1-2 weeks after surgery)

  • Optional tertiary endpoint: Functional Status Score for Intensive Care Unit (FSS-ICU)

    Screening (preoperative day -7 until day -1), ICU discharge (approximately 3-4 days after surgery), hospital discharge (approximately 1-2 weeks after surgery)

  • Optional tertiary endpoint: Short Physical Performance Battery test (SPPB)

    Screening (preoperative day -7 until day -1), ICU discharge (approximately 3-4 days after surgery), hospital discharge (approximately 1-2 weeks after surgery)

  • +12 more other outcomes

Study Arms (2)

Treatment group

EXPERIMENTAL

Patients will receive 0.20 g fish oil/kg BW/d (≙2 mL Omegaven®/kg BW/d).

Drug: Fish Oil

Control group

PLACEBO COMPARATOR

Patients will receive 0,9% NaCl in volume 2 mL/kg BW/d (placebo).

Drug: Intravenous 0.9% Sodium Chloride

Interventions

Omegaven® is a 10% fish oil emulsion with a high percentage of long-chain n-3 fatty acids - mainly eicosapentaenoic acid and docosahexaenoic acid. It optimises the fatty acid pattern in parenteral nutrition and is a source of polyunsaturated n-3 fatty acids as cell membrane components and precursors for eicosanoids. Omegaven® is manufactured by Fresenius-Kabi, Germany and is available in 100 mL bottles for study purpose. Each 100 mL of Omegaven® contains 10 g of fish oil (0.1 g/mL). Timeframe: Day -1: 0.20 g fish oil/kg BW/d (the treatment should be started 24 to 3 h before surgery, can be given as 3-6 hours infusion); intraoperative day 0: no dose; postoperative day 0: 0.20 g fish oil/kg BW/d; postoperative days 1 to max. 7): 0.20 g fish oil/kg BW/d

Also known as: Omegaven®
Treatment group

Intravenous 0.9% Sodium Chloride (volume 2 mL/kg BW/d) provided at the same timepoints as the intervention.

Also known as: Saline Infusion
Control group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Written informed consent prior to study participation
  • Adult patients (≥ 18 years)
  • Patients scheduled to undergo elective cardiac surgery with the use of CPB, who are defined as high risk based on having (i) one of the following surgical procedures: valvular heart surgery only, CABG, combined valve and CABG, multiple valve surgeries, combined cardiac procedures, aortic surgical procedures (aortic arch and/or descending aorta; aortic valve+ascending aorta) and (ii) at least one of the following additional risk factors: (a) a high perioperative risk profile, defined as predicted operative mortality of ≥8% (EuroSCORE II), (b) age ≥70, (c) Clinical Frailty Score 4 or more, (d) urgent surgery (defined as to be performed within 24-48 hours after admission), (e) left ventricular ejection fraction \<35%

You may not qualify if:

  • Known hypersensitivity to fish oil/fish products or egg protein
  • Pregnancy or lactation period
  • Previous history of chronic atrial fibrillation, atrial flutter and/or atrial tachyarrhythmia
  • Inability or unwillingness of individual to give written informed consent
  • Not expected to survive an additional 48 hours from screening evaluation
  • Lack of commitment to full, aggressive care (anticipated withholding or withdrawing treatments in the first week but isolated "Do not Resuscitate" \[DNR\] acceptable)
  • Patients admitted with diabetic ketoacidosis or non-ketotic hyperosmolar coma
  • Patients receiving extracorporeal mechanical assist device (e.g. ECLS, or IABP) or advanced heart failure therapies (e.g. TAH, VAD)
  • Enrolment in anyinterventional trial within the last 30 days
  • Already receiving FO-containing medical nutrition products
  • Severe malnutrition (as defined by the BMI \<18.5)
  • Severe liver dysfunction defined by Child Pugh Class C.
  • Severe chronic kidney dysfunction defined by the National Kidney Foundation (NKF) stage 4 and 5 by using the glomerular filtration rate (GFR \<30ml/min)
  • Known severe coagulation disorder

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (10)

University Hospital Augsburg

Augsburg, Germany

NOT YET RECRUITING

Charité Universitätsmedizin Berlin

Berlin, Germany

RECRUITING

University of Bonn

Bonn, Germany

RECRUITING

University Hospital Goettingen

Göttingen, Germany

RECRUITING

University Hospital Hamburg-Eppendorf

Hamburg, Germany

RECRUITING

University Medical Center Schleswig-Holstein

Kiel, Germany

RECRUITING

University Hospital Mainz

Mainz, Germany

RECRUITING

University Hospital Muenster

Münster, Germany

RECRUITING

University Medical Center Rostock

Rostock, Germany

NOT YET RECRUITING

Robert Bosch Medical Center

Stuttgart, Germany

NOT YET RECRUITING

MeSH Terms

Conditions

Atrial FibrillationAtrial Flutter

Interventions

Fish Oilsfish oil triglyceridesSodium Chloride

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

OilsLipidsChloridesHydrochloric AcidChlorine CompoundsInorganic ChemicalsSodium Compounds

Study Officials

  • Christian Stoppe, Prof. Dr.

    Wuerzburg University Hospital

    STUDY DIRECTOR

Central Study Contacts

Christian Stoppe, Prof. Dr.

CONTACT

Ellen Dresen, Dr.

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Masking Details
Patients as well as clinical staff and outcome assessors not involved in the study will be blinded to study intervention allocation.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Randomization will be stratified by site, employing a web-based system using a 1:1 ratio to either intravenous fish oil-based lipid emulsion (Omegaven®), or placebo.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 13, 2023

First Posted

February 28, 2024

Study Start

February 15, 2024

Primary Completion (Estimated)

March 1, 2030

Study Completion (Estimated)

September 1, 2030

Last Updated

February 23, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations