# Effects of Ketamine and Risperidone on Cognition

> **NCT01140620** · PHASE4 · COMPLETED · sponsor: **University of Manchester** · enrollment: 87 (actual)

## Conditions studied

- Healthy Volunteers
- Schizophrenia

## Interventions

- **DRUG:** ketamine
- **DRUG:** risperidone
- **DRUG:** saline
- **DRUG:** placebo risperidone

## Key facts

- **NCT ID:** NCT01140620
- **Lead sponsor:** University of Manchester
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2010-06
- **Primary completion:** 2010-11
- **Final completion:** 2010-12
- **Target enrollment:** 87 (ACTUAL)
- **Last updated:** 2016-11-09

## Collaborators

- [object Object]
- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01140620

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01140620, "Effects of Ketamine and Risperidone on Cognition". Retrieved via AI Analytics 2026-07-16 from https://api.ai-analytics.org/clinical/NCT01140620. Licensed CC0.

---

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