# Evaluation of the Spiration® Valve System for Emphysema to Improve Lung Function

> **NCT01812447** · NA · COMPLETED · sponsor: **Olympus Corporation of the Americas** · enrollment: 172 (actual)

## Conditions studied

- Emphysema

## Interventions

- **DEVICE:** Spiration Valve System
- **OTHER:** Medical Management

## Key facts

- **NCT ID:** NCT01812447
- **Lead sponsor:** Olympus Corporation of the Americas
- **Sponsor class:** INDUSTRY
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2013-06
- **Primary completion:** 2017-11
- **Final completion:** 2022-08
- **Target enrollment:** 172 (ACTUAL)
- **Last updated:** 2024-05-31


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01812447

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01812447, "Evaluation of the Spiration® Valve System for Emphysema to Improve Lung Function". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT01812447. Licensed CC0.

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