# Site and Mechanism(s) of Expiratory Airflow Limitation in COPD, Emphysema and Asthma-COPD Overlap

> **NCT03263130** · — · RECRUITING · sponsor: **Gelb, Arthur F., M.D.** · enrollment: 60 (estimated)

## Conditions studied

- COPD, Emphysema, Asthma COPD Overlap
- Emphysema

## Interventions

- **OTHER:** As above: diagnosis: COPD, Emphysema, Asthma-COPD Overlap

## Key facts

- **NCT ID:** NCT03263130
- **Lead sponsor:** Gelb, Arthur F., M.D.
- **Sponsor class:** INDIV
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2017-01-01
- **Primary completion:** 2027-01-01
- **Final completion:** 2027-12-01
- **Target enrollment:** 60 (ESTIMATED)
- **Last updated:** 2023-10-27


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03263130

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03263130, "Site and Mechanism(s) of Expiratory Airflow Limitation in COPD, Emphysema and Asthma-COPD Overlap". Retrieved via AI Analytics 2026-06-07 from https://api.ai-analytics.org/clinical/NCT03263130. Licensed CC0.

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