Which drug makes intubation safer? major trial tests remifentanil vs rocuronium
NCT ID NCT06564857
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This trial compares two drugs—remifentanil (a strong painkiller) and rocuronium (a muscle relaxant)—for placing a breathing tube during surgery using a video laryngoscope. About 2,648 adults undergoing general anesthesia will be randomly assigned to one drug. The goal is to see which causes fewer complications like low oxygen, heart issues, or failed first attempts at tube placement. The results could help make intubation safer for millions of patients worldwide.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- remifentanil and rocuronium
- What this could lead to
- If it works, this could show that using remifentanil instead of rocuronium for intubation is safer and reduces complications like breathing problems or awareness during surgery.
- What could go wrong
- This is a large phase 4 trial, but it compares two drugs already in use, so it won't lead to a new treatment. The results may only apply to video laryngoscopy and not change standard practice.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 2,648 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2025
- Expected to finish
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Apr 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adults ≥ 18 years * Undergoing general anaesthesia requiring oro-tracheal intubation * Absence of indication for rapid sequence induction * American Society of Anesthesiologists (ASA) physical status score I - III Exclusion Criteria: * Known allergies or contraindications to rocuronium (e.g. neuromuscular disease) or remifentanil * Awake intubation * Double-lumen endotracheal tube * Oral, pharyngeal, and laryngeal surgery * Surgical contraindication for NMBAs (e.g. use of nerve stimulator) * Patients who are pregnant or breastfeeding * Patients who do not understand Danish or are unable to give informed consent
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Department of Anesthesiology, NOH, Rigshospitalet
RECRUITINGCopenhagen, 2100, Denmark
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Department of Anesthesiology, North Zeeland Hospital
RECRUITINGHillerød, 3400, Denmark
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Training may cut dangerous complications when ICU patients need breathing tubes
- Can a new Opioid-Like drug prevent dangerous blood pressure spikes during anesthesia?
- Could a simple drug order change emergency intubation success?
- Which intubation tool works best? trial puts three devices Head-to-Head
- New study tests which breathing tube tool works best for C-Sections