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A Trial to Evaluate the Efficacy and Safety of Methoxyethyl Etomidate Hydrochloride in Gastroscopy/Colonoscopy

A Multicenter, Randomized, Single-blind, Etomidate-controlled, Phase II Clinical Trial to Evaluate the Efficacy and Safety of Methoxyethyl Etomidate Hydrochloride for Sedation/Anesthesia During Gastroscopy/Colonoscopy.

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06682546
Enrollment
78
Registered
2024-11-12
Start date
2024-11-15
Completion date
2024-12-27
Last updated
2025-05-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Colonoscopy, Gastroscopy

Brief summary

A total of 78 subjects undergoing gastroscopy/colonoscopy were randomly assigned to the methoxetomidate hydrochloride group and the etomidate group according to the ratio of 1:1:1 with etomidate as the control group, 26 cases in each group. All subjects were blinded to treatment allocation. Screening assessments for all subjects will be completed within D-14 to D-2 before the first dose. For all subjects who received the investigational drug, they were required to return to the research center on D2-5 to complete the corresponding examination before being discharged from the group. To preliminarily evaluate the efficacy and safety of ET-26 in gastroscopy/colonoscopy.

Interventions

DRUGET-26HCl 0.6mg/kg group

The initial dose is 0.6 mg/kg, intravenous injection,with an additional 50% starting dose if needed (30second±5second bolus completion). Infusion time was 1minute ± 5second.

The initial dose is 0.8 mg/kg, intravenous injection,with an additional 50% starting dose if needed (30second±5second bolus completion). Infusion time was 1minute ± 5second.

The initial dose is 0.3 mg/kg, intravenous injection,with an additional 50% starting dose if needed (30second±5second bolus completion).Infusion time was 1minute ± 5second.

Sponsors

Ahon Pharmaceutical Co., Ltd.
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. patients undergoing routine gastroscopy/colonoscopy with an expected gastroscopy/colonoscopy procedure time of less than 20 minutes; 2. age ≥ 18 and ≤ 75 years old, regardless of gender; 3. American Society of Anesthesiologists (ASA) grade I-III; 4. Body mass index (BMI) 18-30 kg/m2 (including the cut-off value) and body weight ≤100 kg; 5. Vital signs during screening: respiratory rate ≥10 and ≤24 times/min; Pulse oxygen saturation (SpO2) ≥95% while breathing air; Systolic blood pressure (SBP) ≥90mmHg and ≤160mmHg; Diastolic blood pressure (DBP) ≥60mmHg and ≤100mmHg; Heart rate (ECG) ≥55 and ≤100 beats/min; 6. Serum cortisol concentration was normal or abnormal but not clinically significant according to the investigator's judgment; 7. Able to understand the procedures and methods of this study, willing to sign the informed consent and strictly abide by the trial protocol to complete the study.

Exclusion criteria

1. patients requiring complex endoscopic techniques (such as cholangiopancreatography, endoscopic ultrasonography, endoscopic mucosal resection, endoscopic submucosal dissection, peroral endoscopic myotomy, etc.) or undergoing tracheal intubation; 2. patients with possible gastroduodenal outflow obstruction with retention of contents or upper gastrointestinal bleeding; 3. patients who were known or suspected to have allergies or contraindications to the components of the investigational drug or the prescribed regimen, or who were suspected to have epilepsy or severe liver and kidney dysfunction; 4. predicted difficulty in intubation or ventilation (e.g., modified Mallampti score Ⅲ-Ⅳ, congenital microglossia, mandibular hypoplasia, etc.); 5. having any of the following respiratory management risks before/at the time of screening: 1) history of asthma, wheezing; 2) sleep apnea syndrome; 6. QTcF≥450 ms (male) or ≥470 ms (female) at screening and confirmed by review; Or clinically significant electrocardiographic abnormalities that were deemed by the investigator to be ineligible for the study; 7. use of any of the following drugs or treatments before screening:1) enrolled in a clinical trial of any drug within 1 month before screening; 2) use of medications or treatments that affect cortical function within 3 days before screening; 3) Use of medications that may affect QT interval within 2 weeks before screening; 8. Laboratory tests during the screening period meet the following standards:1)AST and ALT ≥ 3×ULN;2)TBIL≥1.5×ULN;3)hemoglobin ≤90 g/L (and no blood transfusion within 14 days); 4)ANC≤1.5×109/L;5)platelet count ≤80×109/L;6)serum creatinine ≥1.5×ULN; 9. pregnant and lactating women; The reluctance of women or men of childbearing potential to use contraception for the entire dosing period; Subjects (including male subjects) who plan to become pregnant within 3 months after the trial; 10. Subjects with any other factors considered by the investigator to be ineligible for participation in the trial

Design outcomes

Primary

MeasureTime frameDescription
Success rate of gastroscopy/colonoscopywithin approximately 15minutes after injectionNumber of appends ≤5; No alternative medications or other sedatives/anesthetics were used from the beginning of the first dose of the trial product until the completion of gastroscopy/colonoscopy.

Secondary

MeasureTime frameDescription
Duration of successful sedation/anesthesiawithin approximately 1minute after injectionThe time from the first administration of the experimental drug to the MOAA/S score ≤1
Insertion durationwithin approximately 7minutes after the first injectionThe time between initial administration of the investigational drug and successful insertion of the lens
Success rate of lens insertionwithin approximately 7minutes after the last injectionPercentage of subjects with successful insertion
Duration from completion of experimental drug administration to full recoveryWithin approximately 30 minutes of the completion of the last injectionThe time between the completion of the last trial drug administration and the subject's full recovery (the first of three consecutive MOAA/S scores of 5)
The time from the end of treatment to full consciousnessWithin approximately 30 minutes of the completion of the first injectionThe time from gastroscopy/colonoscopy withdrawal until the subject is fully awake (the first of three consecutive MOAA/S scores of 5)
Sedation/anesthesia success rateWithin approximately 1 minute of the end of the injectionPercentage of subjects with a MOAA/S score ≤1 after initial dosing of the investigational drug
The time when BIS reaches 60 or belowwithin approximately 5minutes after injectionThe period from the beginning of first dosing of the investigational product to the first BIS of 60 or less
The length of BIS between 40 and 60within 7minutes after injectionDuration of BIS values between 40 and 60, including boundary values
Rate of use of remedial drugswithin 60minutes after injectionPercentage of subjects who had used the sedative/anesthetic remedy propofol injection once or more
Test drug additionswithin 30minutes after injectionthe additional situation and dosage of drugs were summarized
Cognitive function evaluationMaximum 40 minutes after awakeningMini-mental State Examination
Duration from the end of treatment to the end of the roomA maximum of 10 minutes after awakeningThe first occurrence time from gastroscopy/colonoscopy withdrawal to 3 consecutive departures with Aldrete score ≥9

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026