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Taking people in DenmarkPhase 4

Testing flumazenil to reverse sedation during electroconvulsive therapy for depression

Tests flumazenil, given to reverse a sedative, in adults receiving electroconvulsive therapy for depression.

Key facts

Who runs it
Region Hovedstaden
Where
Frederiksberg, DenmarkSee the site
Registry title
Flumazenil for Benzodiazepine Reversal in Electroconvulsive Therapy (FLEET): A Randomized Controlled Trial
Status
Recruiting
Phase
Phase 4
People taking part
145 people, planned
Started
7 Jan 2026
Expected to end
1 Oct 2028
Type of study
Interventional
Record updated
9 September 2025

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for adults with depression who are referred for electroconvulsive therapy (ECT) and already take a benzodiazepine every day.

Age
18 years or older
Sex
All sexes can join
Disease stage
Depression, either unipolar or bipolar (ICD-10 codes F31.3-5, F32, F33), admitted to a study department in the Mental Health Services of the Capital Region of Denmark
Earlier treatment
Must be referred for ECT by their regular psychiatrist and have agreed to it. Must take a benzodiazepine (at least 0.5 lorazepam equivalents daily).

Main reasons for not taking part

  • Involuntary treatment
  • Known gross abnormalities in brain structure
  • Pregnancy or breast-feeding
  • Cannot read and understand Danish
  • Conditions that raise the risk of long or uncontrollable seizures, such as epilepsy or alcohol or benzodiazepine withdrawal

The registry criteria, word for word

Show all 2 criteriaShow less

Who can take part

  • Patients with depression (unipolar or bipolar, ICD-10 codes F31.3-5, F32, F33); 2) admitted at a study affiliated department in the Mental Health Services of the Capital Region of Denmark; 3) who have been referred for ECT by their regular psychiatrist and have given informed consent to ECT, and 4) who are in treatment with a benzodiazepine (minimum of 0.5 lorazepam equivalents daily)

Who cannot take part

  • involuntary treatment; 2) known gross abnormalities in brain structure or 3) Pregnancy or breast-feeding, 4) unable to read and understand Danish, 4) any preexisting condition associated with an increased risk for prolonged or uncontrollable seizures, including, but not restricted to, epilepsy and alcohol- or benzodiazepine withdrawal states, 5) conditions associated with a reduced metabolism of flumazenil (e.g., liver failure)

Where in Denmark

  • Region HovedstadenFrederiksberg, DenmarkTaking people

About the trial

What the trial wants to find out

To clarify if the FLZ reversal strategy leads to a reduction in cognitive side-effects without losing clinical efficacy, and whether it is associated with neurobiological changes in brain memory networks.

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record

Print a page for my doctor

Data and sources

Registry record
Listed on the EU's official list of trials (CTIS).
Official title
Flumazenil for Benzodiazepine Reversal in Electroconvulsive Therapy (FLEET): A Randomized Controlled Trial
Plain-language title
Testing flumazenil to reverse sedation during electroconvulsive therapy for depressionGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 9 November 2026.
Record updated
9 September 2025