Phase 4 Depression and Anxiety Trial, Recruiting NCT06675851 Sponsor: Medical University of Vienna Condition: Depression and Anxiety
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Phase 4 Depression and Anxiety Trial, Recruiting

NCT06675851
Recruiting Phase 4

Who may be able to join

AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI

Who might be able to join this trial:

  • Adults between 18 and 65 years old (both men and women)
  • People who have been diagnosed with Major Depressive Disorder (a type of depression) using standard clinical assessment tools
  • People who are in generally good health, based on their medical history and a physical check-up at screening
  • People whose body temperature, blood pressure, and heart rate fall within specific normal ranges when measured after resting for 3 minutes
  • People who weigh between 50 and 100 kg and have a body mass index (a measure of body weight relative to height) between 19 and 26
  • People who have adequate vision and hearing to complete thinking and memory tests
  • People who are willing and able to read, understand, and sign a consent form before any study procedures begin
  • People who are able to communicate clearly with the research team and follow the study requirements
  • People who are legally able to give their own consent to take part

Who may not be able to join:

  • People with depression who also have a severe or unstable neurological, physical, or other psychiatric condition
  • Healthy participants (comparison group) who have any psychiatric, severe neurological, or serious physical health condition
  • People who are experiencing symptoms of psychosis (such as hallucinations or delusions)
  • People who are currently at acute risk of suicide
  • People who have any reason they cannot safely have an MRI or PET scan
  • People who have any metal implants in their head
  • People with a history of significant drug allergies, or allergic conditions such as asthma, hives, or eczema, or a known allergy to the study medications bupropion or escitalopram
  • People with other significant abnormalities found during physical examination, neurological assessment, blood tests, or heart trace (ECG) that, in the investigator's judgement, would prevent participation
  • People who have taken antidepressants or other medications affecting mood or mental health in the past 6 months, or who have previously taken escitalopram or bupropion specifically
  • People who have previously received certain depression treatments including deep brain stimulation (DBS), electroconvulsive therapy (ECT), transcranial magnetic stimulation (TMS), or ketamine
  • People who currently smoke, or who have a problem with alcohol, recreational drugs, or any substance use disorder as defined by clinical criteria
  • People who are unwilling or unable to follow the study procedures and instructions
  • People with a positive pregnancy test
  • People who are known to be pregnant or breastfeeding
  • People whose MRI scan shows evidence of stroke, brain injury, or any structural abnormality in the brain
  • People with a history of alcohol or drug misuse
  • People who have taken part in another clinical trial within the 12 weeks before this study begins
  • People whose circulation between two specific arteries in the wrist (radial and ulnar) is found to be incomplete in either hand, based on a simple test (confirm with trial site)
  • People who have received significant radiation exposure (above 5 millisieverts) through participation in other research trials in the past 10 years

Important: Always verify eligibility with the trial site directly before applying.

Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.

This is a simplified plain English summary of the eligibility criteria. Full criteria are set by the trial investigators and may include additional requirements not shown here. Never self-exclude from a trial based on this summary. Contact the trial site directly to confirm your eligibility.
Last synced 20 July 2026
Phase 4 trials study a drug that has already been approved, monitoring long-term safety and effectiveness in real-world use.

Contact this trial

Phone: +43 1 40400 35760

Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.

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Trial details

Status
Recruiting
Phase
Phase 4
Registry
ClinicalTrials.gov
Start date
1 December 2022
Est. completion
1 December 2026

Where this trial is recruiting

🇦🇹 Austria

Primary endpoints

Changes of the reward specific dopamine synthesis rate in the nucleus accumbens of depressed individuals after 6-8 weeks of antidepressant intake assessed via functional PET; Relationship between potential changes of the reward-specific dopamine synthesis rate in the nucleus accumbens assessed via functional PET and treatment response in depressed individuals after 6-8 weeks of antidepressant intake; Difference in changes to the reward-specific dopamine synthesis rate in the nucleus accumbens assessed via functional PET in depressed patients taking bupropion vs. escitalopram after 6-8 weeks of...

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Expanded access pathways

If this trial is not available to you, other access pathways may exist. In Australia, the TGA Special Access Scheme allows access to unapproved therapeutic goods for individual patients.

TGA Special Access Scheme information

Find other recruiting trials on ClinicalTrials.gov

Data last synced from ClinicalTrials.gov: 20 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.

Trial recruitment status can change without notice between our nightly data updates. Always contact the trial site directly to confirm current recruitment status before making any decisions or travel arrangements.

View original record on ClinicalTrials.gov