# A Single-center Study to Assess Peak Inspiratory Flow (PIF) in Different Stages' COPD Patients by Using the In-check Method.

> **NCT01855659** · — · COMPLETED · sponsor: **Elpen Pharmaceutical Co. Inc.** · enrollment: 210 (actual)

## Conditions studied

- Pulmonary Disease

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT01855659
- **Lead sponsor:** Elpen Pharmaceutical Co. Inc.
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2013-06
- **Primary completion:** 2013-11
- **Final completion:** 2013-11
- **Target enrollment:** 210 (ACTUAL)
- **Last updated:** 2013-12-03


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01855659

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01855659, "A Single-center Study to Assess Peak Inspiratory Flow (PIF) in Different Stages' COPD Patients by Using the In-check Method.". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT01855659. Licensed CC0.

---

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