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Study identifier: NCT07607977 Synced from ClinicalTrials.gov · August 08, 2026
● Study status: RecruitingHMEPRO

Exploring Biomarkers in the Heat and Moisture Exchange Filters

Condition: Respiratory Inflammation  ·  Sponsor: Aalborg University Hospital

PhaseN/A
Planned participants10
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNoCheck eligibility criteria ↓
WhereGistrup, Denmark

Interested? Contact the study team ↓

Sponsor, CRO or site team? See where this study is running → — listed sites, countries and recruiting context. Everything below is written for patients and caregivers.

About this study

When patients undergo major surgery, they are connected to a ventilator during anesthesia. A heat and moisture exchange filter (HME filter) is routinely placed in the ventilator tubing to ensure that the inhaled air is warm and humidified. Today, HME filters are used routinely in all ventilator treatments. They are typically replaced once a day and discarded as regular waste after use. The purpose of this study is to investigate whether HME filters contain proteins and small biological particles from the patient's exhaled air.

This description comes directly from the study's public registry record.

Talk to the study team

Inger L Gade, PhD  ·  +45 20843941  ·  inlg@rn.dk

There is no obligation to join — the study team can answer your questions about taking part.

Always discuss trial participation with your own doctor first.

Full eligibility criteria (exactly as the study team wrote them)

Inclusion Criteria: * ≥18 years, able to understand study information in Danish. * Admitted for elective surgery for non-malignant conditions with either intravenous or inhalation anaesthesia and invasive mechanical ventilation according to standard practice. * Expected invasive mechanical ventilation \> 1 hour. * Possess legal capacity. * Informed, signed consent is obtained. Exclusion Criteria: * Patients who are transferred to the ICU for continuous invasive mechanical ventilation after end of elective surgery. * Known chronic lung disease.

Reproduced word-for-word from the public registry record — the study team can answer questions about it.

Locations (1)

Aalborg University HospitalGistrup, DenmarkRecruiting

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Gistrup

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