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Postoperative ComplicationsPhase 4RemimazolamNCT06777758

Comparison of Remimazolam and Propofol in Endoscopic Examinations and Treatments

A Phase 4 study testing Remimazolam and Propofol in people with Postoperative Complications and Respiratory Depression, run by Kaohsiung Veterans General Hospital. at 1 site in Taiwan.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This study aims to evaluate the efficacy and safety of Remimazolam, either used alone or in combination with Propofol, for moderate sedation anesthesia during endoscopic therapies or examinations. Read more about this study

Who is it for?
Ages 20 to 80 years
What is being tested?
Remimazolam and Propofol
Could I receive a placebo?
No, everyone receives an active treatment
How many people
90 participants
Where
1 siteTaiwan
Study dates
12 Feb 2025to 31 Dec 2026
Phase
Phase 4
Are there results?
Not yet: the study is under way

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 20 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects are between 20-80 years old.
  • Anesthesiologists rated ASA as between I and III.
  • Patients undergoing upper gastrointestinal endoscopic examination or therapy.

Who cannot join

  • Allergy to Propofol, Remimazolam, or opioid medications.
  • Emergency surgery.
  • Pregnancy.
  • History of malignant hyperthermia.
  • Impaired liver or kidney function.
  • Airway difficulties due to pharyngeal tumors.
  • Refusal to participate.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Taiwan1 site, 1 recruiting
  • Kaohsiung Veterans General Hospital

    Kaohsiung City, 81362

    Yuan-Yi Chia, Bachelor, 886-7-342-2121 ext. 74105, yychia@isca.vghks.gov.tw

    Chen-Hsiu Chen, Ph.D, 886-7-342-2121 ext. 74105, chschen@vghks.gov.tw

    Recruiting

Other trials in Taiwan

About this study

Official title: The Comparison of Remimazolam or Propofol Used Alone Versus in Combination for Moderate Sedation During Endoscopic Examination and Treatment.

This study aims to evaluate the efficacy and safety of Remimazolam, either used alone or in combination with Propofol, for moderate sedation anesthesia during endoscopic therapies or examinations. Additionally, it seeks to explore whether their combination can further enhance the quality of patient anesthesia and recovery outcomes.

Read the detailed description

Objective This study aims to evaluate the efficacy and safety of Remimazolam, either used alone or in combination with Propofol, for moderate sedation anesthesia during endoscopic therapies or examinations. Additionally, it seeks to explore whether their combination can further enhance the quality of patient anesthesia and recovery outcomes.

Methods The investigators will conduct a prospective, randomized, single-center study. Eligible patients will be randomly allocated into three groups: the first group receiving Propofol alone for moderate sedation anesthesia (control group), the second group receiving Remimazolam alone for anesthesia, and the third group receiving a combination of Propofol and Remimazolam for anesthesia. The investigators will record anesthesia depth (DSA values of BIS), heart rate, blood pressure, oxygen saturation, and other indicators during the procedure, as well as postoperative recovery time, time to consciousness recovery, oxygen desaturation, instances of inadequate anesthesia depth, intraoperative patient movement or recall, surgeon satisfaction, patient satisfaction, readmission rate within 14 days, complications, and length of hospital stay.

Being tested
Remimazolam, Propofol
Keywords
endoscope, Respiratory depression, Remimazolam、, Sedation, BYFAVO
Medical subject headings
Postoperative Complications, Respiratory Insufficiency, Postoperative Nausea and Vomiting, Vomiting, Constipation

What participants receive

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

  • RemimazolamDrug

    Remimazolam

  • PropofolDrug

    Propofol dose reduction ratio

Study groups in NCT06777758
Study groupRoleWhat they receive
PropofolActive comparatorThe patient underwent a routine upper gastrointestinal endoscopy.
Receives: Drug: Propofol
RemimazolamExperimentalThe patient underwent routine upper gastrointestinal endoscopy and Remimazolam was substituted for Propofol.
Receives: Drug: Remimazolam
Propofol + RemimazolamExperimentalThe patient underwent routine upper gastrointestinal endoscopy, and the anesthetic drug used was Propofol combined with Remimazolam.
Receives: Drug: Remimazolam; Drug: Propofol

What is being measured

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

  1. Dose change

    Change in Propofol dose ratio. (Record total dose, Duration, mg/h/kg)

    Measured: Perioperatively (during upper gastrointestinal endoscopy)

Secondary outcomes (8)
  1. Incidence of postoperative nausea and vomiting.

    Track postoperative nausea and vomiting episodes.

    Measured: After returning to the ward from the recovery room until before breakfast on the first postoperative day.

  2. Time to open eyes after stopping Propofol or Remimazolam.

    Eye open minutes after Propofol or Remimazolam stop.

    Measured: The timer starts after the anesthetic is administered.

  3. Use of rescue medications during surgery.

    Rescue drugs are used during the operation

    Measured: During surgery

  4. Analgesic dosage in the recovery room.

    Analgesic dosage in the postoperative recovery room.

    Measured: Observation period in the postoperative recovery room

  5. Analgesic dosage in the ward.

    The dosage of analgesics used in post-operative wards.

    Measured: The patients were followed up from the time they returned to the ward after surgery to the first day after surgery.

  6. Pain Intensity (Visual Analog Scale, VAS) every 15 minutes in the recovery room for 1 hour after surgery.

    Assessment of pain intensity using the Visual Analog Scale (VAS), where 0 represents no pain and 10 represents the worst possible pain.

    Measured: Within 1 hour post-surgery.

  7. Pain from the first injection of medication.

    Assessment of pain intensity caused by the first injection of medication, measured using the Visual Analog Scale (VAS) from 0 to 10.

    Measured: During the surgery (immediately after the first injection).

  8. Recall of surgery events.

    Recall events during surgery.

    Measured: On postoperative day 1 (within 24 hours after surgery).

Timeline

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

  1. First posted16 Jan 2025
  2. Study start12 Feb 2025
  3. Primary completion31 Dec 2026 (estimated)
  4. Study completion31 Dec 2026 (estimated)

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
90 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06777758
Sponsor's protocol ID
KSVGH24-CT8-16
Acronym
Remimazolam
Status last verified
May 2025
First submitted
6 Dec 2024
Last updated
8 May 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Meseeha M, Goosenberg E, Attia M. Endoscopic Retrograde Cholangiopancreatography. 2025 Oct 5. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Available from http://www.ncbi.nlm.nih.gov/books/NBK493160/

    PubMed 29630212
  • Garewal D, Waikar P. Propofol sedation for ERCP procedures: a dilemna? Observations from an anesthesia perspective. Diagn Ther Endosc. 2012;2012:639190. doi: 10.1155/2012/639190. Epub 2012 Jan 5.

    PubMed 22272061
  • Garewal D, Vele L, Waikar P. Anaesthetic considerations for endoscopic retrograde cholangio-pancreatography procedures. Curr Opin Anaesthesiol. 2013 Aug;26(4):475-80. doi: 10.1097/ACO.0b013e3283620139.

    PubMed 23635608
  • Zhu H, Su Z, Zhou H, Lu J, Wang X, Ji Z, Chen S, Wang X, Yao M, Lu Y, Yu W, Su D. Remimazolam Dosing for Gastroscopy: A Randomized Noninferiority Trial. Anesthesiology. 2024 Mar 1;140(3):409-416. doi: 10.1097/ALN.0000000000004851.

    PubMed 38039392
  • Barbosa EC, Espirito Santo PA, Baraldo S, Meine GC. Remimazolam versus propofol for sedation in gastrointestinal endoscopic procedures: a systematic review and meta-analysis. Br J Anaesth. 2024 Jun;132(6):1219-1229. doi: 10.1016/j.bja.2024.02.005. Epub 2024 Mar 4.

    PubMed 38443286
  • Dong SA, Guo Y, Liu SS, Wu LL, Wu LN, Song K, Wang JH, Chen HR, Li WZ, Li HX, Zhang L, Yu JB. A randomized, controlled clinical trial comparing remimazolam to propofol when combined with alfentanil for sedation during ERCP procedures. J Clin Anesth. 2023 Jun;86:111077. doi: 10.1016/j.jclinane.2023.111077. Epub 2023 Feb 9.

    PubMed 36764022
  • Ahmer W, Imtiaz S, Alam DM, Ahmed K, Sajid B, Yousuf J, Asnani S, Fahim MAA, Ali R, Mansoor M, Safdar MT, Anjum MU, Hasanain M, Larik MO. Remimazolam versus propofol for sedation in gastrointestinal endoscopy and colonoscopy within elderly patients: a meta-analysis of randomized controlled trials. Eur J Clin Pharmacol. 2024 Apr;80(4):493-503. doi: 10.1007/s00228-024-03624-6. Epub 2024 Jan 23.

    PubMed 38261005
  • Rex DK, Bhandari R, Desta T, DeMicco MP, Schaeffer C, Etzkorn K, Barish CF, Pruitt R, Cash BD, Quirk D, Tiongco F, Sullivan S, Bernstein D. A phase III study evaluating the efficacy and safety of remimazolam (CNS 7056) compared with placebo and midazolam in patients undergoing colonoscopy. Gastrointest Endosc. 2018 Sep;88(3):427-437.e6. doi: 10.1016/j.gie.2018.04.2351. Epub 2018 Apr 30.

    PubMed 29723512
  • Yang SH, Wu CY, Tseng WH, Cherng WY, Hsiao TY, Cheng YJ, Chan KC. Nonintubated laryngomicrosurgery with Transnasal Humidified Rapid-Insufflation Ventilatory Exchange: A case series. J Formos Med Assoc. 2019 Jul;118(7):1138-1143. doi: 10.1016/j.jfma.2018.11.009. Epub 2018 Dec 3.

    PubMed 30522856
  • Montgomery J, Melia L, O'Donnell N, MacKenzie K. Intubation trauma and the head and neck surgeon: issues with a shared airway. J R Soc Med. 2015 Nov;108(11):426-8. doi: 10.1177/0141076815614803. No abstract available.

    PubMed 26609095
  • Kuo YT, Chang TS, Tsai CC, Chang HC, Chia YY. Optimizing nonintubated laryngeal microsurgery: The effectiveness and safety of superior laryngeal nerve block with high-flow nasal oxygen-A prospective cohort study. J Chin Med Assoc. 2024 Mar 1;87(3):334-339. doi: 10.1097/JCMA.0000000000001057. Epub 2024 Jan 30.

    PubMed 38305707
  • Lewis SR, Pritchard MW, Fawcett LJ, Punjasawadwong Y. Bispectral index for improving intraoperative awareness and early postoperative recovery in adults. Cochrane Database Syst Rev. 2019 Sep 26;9(9):CD003843. doi: 10.1002/14651858.CD003843.pub4.

    PubMed 31557307
  • Punjasawadwong Y, Phongchiewboon A, Bunchungmongkol N. Bispectral index for improving anaesthetic delivery and postoperative recovery. Cochrane Database Syst Rev. 2014 Jun 17;2014(6):CD003843. doi: 10.1002/14651858.CD003843.pub3.

    PubMed 24937564
  • Wehrmann T. Extended monitoring of the sedated patient: bispectral index, Narcotrend and automated responsiveness monitor. Digestion. 2010;82(2):90-3. doi: 10.1159/000285506. Epub 2010 Apr 21.

    PubMed 20407252
  • Lee J, Jeong S, Lee DH, Park JS. Finding the ideal sedative: a non-inferiority study of remimazolam vs propofol in endoscopic retrograde cholangiopancreatography. J Gastroenterol Hepatol. 2023 Dec;38(12):2160-2166. doi: 10.1111/jgh.16354. Epub 2023 Sep 20.

    PubMed 37730240

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Remimazolam and Propofol in people with Postoperative Complications and Respiratory Depression, run by Kaohsiung Veterans General Hospital. at 1 site in Taiwan.

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 3 inclusion and 7 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: looking for participants now, as of the sponsor's last update on 8 May 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.

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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

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

Contact Yuan-Yi Chia, M.D (886-7-342-2121 ext. 74105, yychia@vghks.gov.tw), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Dose change (time frame: Perioperatively (during upper gastrointestinal endoscopy)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06777758, which also lists 16 linked publications.

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 8 May 2025.

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