# Comparing Pressure Based and Dilution Based Total Lung Capacity Measurements in COPD Patients for Lung Function Diagnostics

> **NCT04531293** · NA · COMPLETED · sponsor: **ndd Medizintechnik AG** · enrollment: 128 (actual)

## Conditions studied

- COPD

## Interventions

- **DEVICE:** Respiratory Analysis System
- **DEVICE:** Respiratory Analysis System

## Key facts

- **NCT ID:** NCT04531293
- **Lead sponsor:** ndd Medizintechnik AG
- **Sponsor class:** INDUSTRY
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2020-12-31
- **Primary completion:** 2022-04-11
- **Final completion:** 2022-04-11
- **Target enrollment:** 128 (ACTUAL)
- **Last updated:** 2022-06-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04531293

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04531293, "Comparing Pressure Based and Dilution Based Total Lung Capacity Measurements in COPD Patients for Lung Function Diagnostics". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT04531293. Licensed CC0.

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