# RCT: Trazodone vs Quetiapine vs Placebo for Treating ICU Delirium (TraQ)

> **NCT05085808** · PHASE4 · WITHDRAWN · sponsor: **University of Southern California**

## Conditions studied

- Delirium
- Morality
- Quality of Life
- Psych
- Treatment Side Effects

## Interventions

- **DRUG:** Trazodone
- **DRUG:** Quetiapine
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT05085808
- **Lead sponsor:** University of Southern California
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2028-03-01
- **Primary completion:** 2029-07-01
- **Final completion:** 2030-12-01
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** PI left institution. Study never started.
- **Last updated:** 2026-05-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05085808

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05085808, "RCT: Trazodone vs Quetiapine vs Placebo for Treating ICU Delirium (TraQ)". Retrieved via AI Analytics 2026-05-23 from https://api.ai-analytics.org/clinical/NCT05085808. Licensed CC0.

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