# The Extended Salford Lung Study ("Ex-SLS") Data Access Project

> **NCT03152669** · — · RECRUITING · sponsor: **GlaxoSmithKline** · enrollment: 3500 (estimated)

## Conditions studied

- Asthma

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT03152669
- **Lead sponsor:** GlaxoSmithKline
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2018-04-15
- **Primary completion:** 2028-04-30
- **Final completion:** 2028-04-30
- **Target enrollment:** 3500 (ESTIMATED)
- **Last updated:** 2025-12-18


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03152669

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03152669, "The Extended Salford Lung Study ("Ex-SLS") Data Access Project". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT03152669. Licensed CC0.

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