Plain-English translation of NCT04136717 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
This trial is testing a device called FreeO2 that automatically adjusts oxygen levels during breathing support. The study includes two groups: people hospitalized with a severe flare-up of COPD (a chronic lung disease) and people recovering from weight-loss surgery. Researchers want to see if the automatic oxygen adjustment helps keep oxygen levels in a healthy range without causing harmful side effects.
When patients receive breathing support and oxygen therapy, doctors must manually adjust oxygen levels throughout the day — a time-consuming process that can be difficult to get just right. This trial is testing whether automatic adjustment can keep oxygen levels stable and safe more effectively than manual adjustments alone.
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If you qualify, you will be assigned to either the COPD flare-up group or the post-surgery group. While you are hospitalized and using breathing support (either non-invasive ventilation or CPAP), the study team will use the FreeO2 device to automatically adjust your oxygen levels. The researchers will monitor your oxygen saturation levels and carbon dioxide levels throughout your hospital stay to see how well the automatic system works compared to standard care.
AI-generated summary from trial data · Jun 2, 2026 · Not medical advice
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