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Elective Surgical ProceduresProDectNCT04586998

Comparison Between Propofol Concentration in Exhaled Breath and Blood Plasma Using the Exhaled Drug Monitor "Edmon"

A study testing Exhaled drug monitor "Edmon" in people with Elective Surgical Procedures and Anesthesia, Intravenous, run by B. Braun Melsungen AG.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

Edmon is the first Communauté Européenne (CE) marked medical device able to continuously measure propofol in the exhaled breath of patients under sedation or anaesthesia with propofol. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Exhaled drug monitor "Edmon"
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
No sites listed yet
Study dates
Apr 2021to Jul 2022
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female patients undergoing elective surgical procedures
  • Expected duration of the surgical procedure > 1h
  • General anaesthesia (TIVA) with propofol and remifentanil under orotracheal intubation
  • Medical need for an arterial line for an invasive haemodynamic monitoring during anaesthesia
  • Written informed consent
  • Age ≥ 18 years
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  • ASA I-III
  • BMI < 35 kg/m²
  • Women of child bearing potential: negative pregnancy test
  • BIS monitoring feasible (e.g. no surgical procedures on the frontal brain)
  • The patient is expected to be extubated in the OR after end of surgery

Who cannot join

  • Patients with contraindications for propofol, remifentanil or for the planned anaesthetic procedure
  • Cardiac surgery
  • Lung surgery
  • Organ transplant procedures
  • Pulmonary diffusion anomalies (e.g. pulmonary fibrosis), known from medical history
  • Patients on renal replacement therapy
Show all 12Show fewer
  • Participation in another interventional trial
  • Breastfeeding women
  • Unilateral lung ventilation
  • Emergency surgery
  • Patient is not able to give his/her written informed consent
  • Patients with a haemoglobin level below 10 g/dl

About this study

Official title: Prospective Multicenter Open-Label Single Group Study on the Comparison Between Propofol Concentration in Exhaled Breath and Blood Plasma Using the Propofol Monitor Edmon in Patients Undergoing Elective Surgery Under Total Intravenous Anaesthesia

Edmon is the first Communauté Européenne (CE) marked medical device able to continuously measure propofol in the exhaled breath of patients under sedation or anaesthesia with propofol. Current scientific publications indicate that it makes sense from a pharmacologic point of view to measure propofol in the exhaled air.

If the present study can show the Edmon to be able to detect small differences in propofol plasma concentration it will underline the clinical value of measuring propofol in the exhaled breath. This might be an opportunity for a significant improvement in patient monitoring.

Being tested
Exhaled drug monitor "Edmon"
Keywords
EDMON, Propofol detection, Exhaled breath, Drug monitoring

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Exhaled drug monitor "Edmon"Device

    Taking samples of exhaled breath every minute during elective surgery in comparison to blood samples taken at predefined time points.

Study groups in NCT04586998
Study groupRoleWhat they receive
Exhaled drug monitor "Edmon"ExperimentalComparison between propofol in exhaled breath and blood plasma
Receives: Device: Exhaled drug monitor "Edmon"

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Propofol measurements

    To investigate the correlation between propofol concentrations in exhaled breath and blood plasma in patients undergoing elective surgical procedures under total intravenous anaesthesia.

    Measured: During elective surgical procedure lasting longer than 1 hour

Secondary outcomes (2)
  1. Identification of confounders with an impact on propofol exhaled breath concentration, e.g.among ventilatory and circulatory parameters

    To identify confounders among ventilatory and circulatory parameters by correlating the course of propofol values with courses of single parameters from vital sign monitor or anaesthetic machine (e.g. systolic blood pressure or positive end-expiratory pressure (PEEP))

    Measured: During elective surgical procedure lasting longer than 1 hour

  2. Evaluation of the correlation between propofol exhaled breath concentration and EEG index values

    For that correlation EEG index values (Bispectral index (BIS) and suppression ratio) will be corrected by calculated remifentanil plasma concentration and then correlated to propofol exhaled breath concentrations

    Measured: During elective surgical procedure lasting longer than 1 hour

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Oct 2020
  2. Study startApr 2021 (estimated)
  3. Primary completionJul 2022 (estimated)
  4. Study completionJul 2022 (estimated)

Why it stopped: Business decision

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04586998
Sponsor's protocol ID
HC-G-H-1716
Acronym
ProDect
Status last verified
May 2021
First submitted
18 Sep 2020
Last updated
3 Jun 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Exhaled drug monitor "Edmon" in people with Elective Surgical Procedures and Anesthesia, Intravenous, run by B. Braun Melsungen AG.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 11 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 3 Jun 2021. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Propofol measurements (time frame: During elective surgical procedure lasting longer than 1 hour). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Jun 2021.

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