# Effect of Single Dose Intranasal Insulin On Cognitive Function

> **NCT00646581** · PHASE4 · COMPLETED · sponsor: **University of Massachusetts, Worcester** · enrollment: 30 (actual)

## Conditions studied

- Schizophrenia
- Schizoaffective Disorder

## Interventions

- **DRUG:** Placebo
- **DRUG:** Insulin (Humulin)

## Key facts

- **NCT ID:** NCT00646581
- **Lead sponsor:** University of Massachusetts, Worcester
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2006-10
- **Primary completion:** 2010-01
- **Final completion:** 2010-01
- **Target enrollment:** 30 (ACTUAL)
- **Last updated:** 2013-02-15


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00646581

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00646581, "Effect of Single Dose Intranasal Insulin On Cognitive Function". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT00646581. Licensed CC0.

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