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Determination of the Clinical Equipotent Dose Ratio of Remimazolam to Propofol in Colonoscopy: The RECIPE-C Study (Remimazolam Equipotent Conversion Index to Propofol in Endoscopy-Colon)

Determination of the Clinical Equipotent Dose Ratio of Remimazolam to Propofol in Colonoscopy: The RECIPE-C Study (Remimazolam Equipotent Conversion Index to Propofol in Endoscopy-Colon) - RECIPE-C Study

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000060951
Enrollment
100
Registered
2026-03-17
Start date
2026-03-02
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Patients undergoing colonoscopy (for screening or diagnostic purposes)

Interventions

None listed

Sponsors

Sendai City Medical Center Sendai Open Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Aged 20 years or older with opt-out consent obtained Underwent colonoscopy for screening or diagnostic purposes with RMZ as the sedative Had a colonoscopy under PRO monotherapy (opioid-free) at our institution within the past 2 years, completed by a single operator with a single scope to cecal intubation Procedures performed by an expert endoscopist (board-certified gastroenterologist with >=2,000 colonoscopy experience) in both prior and current examinations

Exclusion criteria

Exclusion criteria: Change in ASA PS classification between prior and current examinations History of colorectal surgery (except appendectomy) Emergency endoscopy Cases where procedural difficulty, invasiveness, or examination time was judged significantly different between prior and current examinations (e.g., therapeutic endoscopy such as ESD/EMR, severe adhesions, strictures) Cold snare polypectomy for <=4 lesions is NOT excluded Pregnant or possibly pregnant Currently receiving opioids (including tramadol) Judged inappropriate by the attending physician

Design outcomes

Primary

MeasureTime frame
Dose weight ratio (weight-adjusted total dose) For each patient, the ratio of weight-adjusted doses calculated using the following formula (median and correlation coefficient): Dose Weight Ratio (mg/kg) = Total Dose (mg) / Weight (kg) Comparison of RMZ and PRO to derive the RMZ-to-PRO conversion ratio.

Countries

Japan

Contacts

Public ContactTakeshi Shimizu

Sendai City Medical Center Sendai Open Hospital Department of Gastroenterology

takeshi.shimizu@openhp.or.jp022-252-1111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026