Could a tiny dose of muscle relaxant make lung scopes safer?
NCT ID NCT07035301
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looked at whether giving a low dose of a muscle relaxant (rocuronium) during bronchoscopy—a procedure where a tube is inserted into the lungs—could reduce complications like throat spasms and coughing. 153 adults having elective bronchoscopy were split into two groups: one got the muscle relaxant, the other got a placebo. The goal was to see if the relaxant made the procedure smoother and safer.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Rocuronium (low-dose muscle relaxant)
- What this could lead to
- If it works, this could make bronchoscopy safer and more comfortable by reducing airway spasms and coughing during the procedure.
- What could go wrong
- This is a small, completed study with 153 participants, so results may not apply to all patients. Low-dose muscle relaxants still carry risks like breathing difficulties.
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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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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153 people
The number who actually took part.
- Started
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Mar 2025
- Finished
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Jul 2025
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Patients undergoing elective electronic bronchoscopic interventional surgery; 2. Age 18 years or older; 3. American Society of Anesthesiologists (ASA) I-III; 4. The duration of bronchoscopic surgery \>=20min; 5. Through pre-anesthesia assessment, the patient/family member has informed consent and signed the consent form; 6. The general clinical information of the patient is complete. Exclusion Criteria: 1. Patients with predictable difficult airway; 2. Small mouth opening (\<2 transverse fingers); 3. Combined with severe cardiovascular disease, abnormal liver and kidney function; 4. Morbidly obese patients with body mass index (BMI) greater than 35kg/m\^2; 5. Has a history of gastroesophageal reflux disease. 6. High risk of reflux aspiration; 7. Those who have a history of abnormal surgical anesthesia recovery in the past; 8. Patients with mental illness and previous allergies to conventional anesthetic drugs.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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The First Affiliated Hospital of Harbin Medical University
Harbin, Heilongjiang, 150001, China