# ALFAsleep: Exploring Cognitive and Biological Correlates of Sleep Quality and Their Potential Links With Alzheimer's Disease

> **NCT04932473** · — · COMPLETED · sponsor: **Barcelonabeta Brain Research Center, Pasqual Maragall Foundation** · enrollment: 179 (actual)

## Conditions studied

- Cognitively Unimpaied

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT04932473
- **Lead sponsor:** Barcelonabeta Brain Research Center, Pasqual Maragall Foundation
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2021-01-26
- **Primary completion:** 2022-09-20
- **Final completion:** 2025-05-27
- **Target enrollment:** 179 (ACTUAL)
- **Last updated:** 2025-05-31


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04932473

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04932473, "ALFAsleep: Exploring Cognitive and Biological Correlates of Sleep Quality and Their Potential Links With Alzheimer's Disease". Retrieved via AI Analytics 2026-09-07 from https://api.ai-analytics.org/clinical/NCT04932473. Licensed CC0.

---

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