# Opioid Effects on Cognitive Function Following Colonoscopy

> **NCT02267681** · PHASE4 · COMPLETED · sponsor: **Perihan Ekmekçi** · enrollment: 150 (actual)

## Conditions studied

- Digestive System Diseases
- Disorientation

## Interventions

- **DRUG:** Fentanyl
- **DRUG:** Alfentanil
- **DRUG:** Propofol

## Key facts

- **NCT ID:** NCT02267681
- **Lead sponsor:** Perihan Ekmekçi
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2014-10
- **Primary completion:** 2016-05
- **Final completion:** 2016-06
- **Target enrollment:** 150 (ACTUAL)
- **Last updated:** 2016-06-29


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02267681

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02267681, "Opioid Effects on Cognitive Function Following Colonoscopy". Retrieved via AI Analytics 2026-06-05 from https://api.ai-analytics.org/clinical/NCT02267681. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*