# Napping, Sleep, Cognitive Decline and Risk of Alzheimer's Disease

> **NCT03256539** · NA · TERMINATED · sponsor: **University of California, San Francisco** · enrollment: 15 (actual)

## Conditions studied

- Sleep
- Alzheimer Disease
- Cognitive Impairment
- Aging
- CBT

## Interventions

- **BEHAVIORAL:** Sleep intervention
- **BEHAVIORAL:** Placebo intervention

## Key facts

- **NCT ID:** NCT03256539
- **Lead sponsor:** University of California, San Francisco
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** TERMINATED
- **Start date:** 2021-08-12
- **Primary completion:** 2024-01-31
- **Final completion:** 2024-01-31
- **Target enrollment:** 15 (ACTUAL)
- **Why stopped:** Unexpected closure of study components -- the digital intervention (CBT-I) was no longer accessible, and alternatives were not feasible.
- **Last updated:** 2025-11-14

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03256539

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03256539, "Napping, Sleep, Cognitive Decline and Risk of Alzheimer's Disease". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT03256539. Licensed CC0.

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