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Discontinuation or Continuation of SGLT-2 Inhibitors Before Cardiac Surgery

Discontinuation or Continuation of SGLT-2 Inhibitors Before Cardiac Surgery: Impact on Postoperative Cardiovascular Outcomes - DISCO Study

Status
Not yet recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07766109
Acronym
DISCO
Enrollment
434
Registered
2026-08-14
Start date
2026-10-01
Completion date
2029-01-01
Last updated
2026-08-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cardiac Surgery, Heart Failure

Keywords

perioperative care, SGLT-2 inhibitor

Brief summary

SGLT-2 inhibitors are recommended treatments for managing heart failure patients. In cases of surgery, it is recommended to stop the treatment 3 days before surgery due to the risk of postoperative euglycemic diabetic ketoacidosis. However, several data suggest that it may be beneficial to maintain SGLT-2i treatment given the possibility of improving postoperative cardiovascular outcomes. Investigator team wish to conduct a randomized controlled trial to test the hypothesis that preoperative maintenance of SGLT-2i is superior to discontinuing them 3 days before surgery in improving postoperative cardiovascular outcomes.

Detailed description

Investigator team will compare patients who continue SGLT-2 inhibitors preoperatively with those who discontinue SGLT-2 inhibitors 3 days before surgery. Patients scheduled for elective cardiac surgery with cardiopulmonary bypass will be seen in an anesthesia consultation at least 4 days before surgery. During the consultation, the study will be proposed to the patient. After receiving written information and signing the informed consent form, baseline data, will be collected, and the patient will be randomized into one of the two study groups. The patient and the anesthesia and cardiac surgery teams will not be blinded. Indeed, Investigator team aim to conduct a pragmatic study that closely reflects clinical reality. Postoperatively, patients will be managed according to each service's usual practices. Investigator team's goal is to reflect real-world conditions. Following surgery, SGLT-2 inhibitors will be administrated once hemodynamics are stable. Five visits are scheduled in the protocol: 4 at 7 days before surgery, the day before surgery, at 7 days, upon hospital discharge, and 30 days after the intervention to assess the occurrence of the various outcome criteria.

Interventions

stop the SGLT-2 inhibitors treatment (dapagliflozine or empagliflozine) 3 days before surgery

DRUGtreatment continuation

maintain SGLT-2i treatment (dapagliflozine or empagliflozine) until surgery morning included

DIAGNOSTIC_TESTketone levels

Measurement of capillary ketone levels

Sponsors

University Hospital, Toulouse
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Adult patients scheduled to undergo cardiac surgery with cardiopulmonary bypass * patients treated with SGLT-2 inhibitors, including combined treatment with metformin, for at least 4 weeks * heart failure patients with a left ventricular ejection fraction strictly below 50% * patients enrolled in a social security scheme or equivalent * patients who have signed the informed consent form

Exclusion criteria

* Treatment with SGLT-2 inhibitors initiated less than 4 weeks ago and other than empagliflozine or dapagliflozine * patients with a contraindication to SGLT-2 inhibitors: hypersensitivity, type 1 diabetes mellitus, and renal impairment with an estimated glomerular filtration rate below 25 mL/min/1.73 m² * acute conditions likely to call into question the continuation of SGLT2 inhibitor therapy (alone or in combination) at the time of inclusion, including in particular: shock state or acute tissue hypoxia (episode of hyperlactatemia \> 3 mmol/L within 7 days prior to inclusion); acute kidney injury within the previous 7 days (KDIGO stage ≥2); severe hepatocellular failure (factor V level \< 50%); acute alcohol intoxication within the previous 7 days or active alcohol use disorder without withdrawal * surgery scheduled within less than 3 days * surgery for active endocarditis within the last 3 months * patients on preoperative mechanical circulatory support * heart transplant surgery or implantation of an LVAD (left ventricular assist device) * chronic kidney disease patients with a glomerular filtration rate below 25 mL/min/1.73m² * heart failure patients with a preserved ejection fraction, equal to or greater than 50 * pregnant or breastfeeding women * minors or adults under legal protection (guardianship or conservatorship) * patients participating in another interventional study patients who do not understand or speak French.

Design outcomes

Primary

MeasureTime frameDescription
postoperative cardiovascular outcomesday 30 after surgerycomposite criterion describing postoperative cardiovascular outcomes and will include: the occurrence of postoperative myocardial ischemia by day 2 (elevation of troponin I more than 218 times the laboratory threshold value for patients undergoing coronary artery bypass grafting or aortic valve replacement/repair surgery; the threshold will be 499 times the laboratory threshold value for other types of surgery) ; and/or the occurrence of postoperative low cardiac output syndrome in the ICU (defined by the administration of inotropes for more than 48 hours and/or the use of mechanical circulatory support); and/or rehospitalization by day 30 for heart failure (defined by the need for initiation or increase of diuretics and/or administration of inotropes and/or the use of invasive or non-invasive mechanical ventilation for acute pulmonary edema); and/or postoperative mortality by day 30

Secondary

MeasureTime frameDescription
Perioperative myocardial ischemiaday 2 after surgerypostoperative myocardial ischemia defined by elevation of troponin I more than 218 times the laboratory threshold value for patients undergoing coronary artery bypass grafting or aortic valve replacement/repair surgery; the threshold will be 499 times the laboratory threshold value for other types of surgery
Postoperative low cardiac output syndromeday 7 after surgerypostoperative low cardiac output syndrome in the ICU defined by the administration of inotropes for more than 48 hours and/or the use of mechanical circulatory support
Rehospitalizationday 30 after surgeryRehospitalization within 30 days post-surgery for left heart failure
mortalityday 7 after surgeryAll-cause mortality
Euglycemic diabetic ketoacidosisday 7 after surgeryEuglycemic diabetic ketoacidosis
Acute kidney injuryday 7 after surgeryAcute kidney injury within 7 postoperative days, it will be considered present in the case of KDIGO stage ≥ 2
Quality of life assessed with an EQ5D test performed at day 30day 30 after surgeryQuality of life assessed with an EQ5D test performed at day 30

Countries

France

Contacts

CONTACTFrançois LABASTE, MD-PH
labaste.f@chu-toulouse.fr05 61 32 28 22
CONTACTMagali CENTELLES
centelles.m@chu-toulouse.fr
PRINCIPAL_INVESTIGATORFrançois LABASTE, MD_PH

University Hospital of Toulouse

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 15, 2026