# Emphysema Research Registry and Biosample Repository

> **NCT00307281** · — · RECRUITING · sponsor: **University of Pittsburgh** · enrollment: 3000 (estimated)

## Conditions studied

- Emphysema
- Chronic Obstructive Pulmonary Disease
- Chronic Bronchitis

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00307281
- **Lead sponsor:** University of Pittsburgh
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2000-08
- **Primary completion:** 2030-07
- **Final completion:** 2030-07
- **Target enrollment:** 3000 (ESTIMATED)
- **Last updated:** 2025-09-25


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00307281

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00307281, "Emphysema Research Registry and Biosample Repository". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT00307281. Licensed CC0.

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