# Post-Market Clinical Evaluation of the Zephyr Valve 5.5-LP EBV

> **NCT04161235** · — · COMPLETED · sponsor: **Pulmonx Corporation** · enrollment: 2 (actual)

## Conditions studied

- Pulmonary Emphysema

## Interventions

- **DEVICE:** The Pulmonx Zephyr Endobronchial Valve (EBV) 5.5- LP

## Key facts

- **NCT ID:** NCT04161235
- **Lead sponsor:** Pulmonx Corporation
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2020-02-05
- **Primary completion:** 2021-08-13
- **Final completion:** 2021-12-30
- **Target enrollment:** 2 (ACTUAL)
- **Last updated:** 2023-11-15


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04161235

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04161235, "Post-Market Clinical Evaluation of the Zephyr Valve 5.5-LP EBV". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT04161235. Licensed CC0.

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