Colonoscopy | Diphenhydramine as an Adjunctive Sedative in Patients on Chronic Opioids
Colonoscopy research study
What is the primary objective of this study?
To access the efficacy of adding diphenhydramine as adjunct to improve sedation and to reduce the amount of standard sedatives used during colonoscopy in patients on chronic opioids.
Who is eligible to participate?
Inclusion Criteria: - Patients aged 18-64 years undergoing screening, surveillance, diagnostic and therapeutic colonoscopy - Patient on chronic opioids defined as at least 5 mg of morphine or its equivalent at least 3 days per week for more than 3 months Exclusion Criteria: - Inability to execute informed consent - Allergy to Diphenhydramine, fentanyl or midazolam - Known or suspected pregnancy - Endoscopic procedure without sedation - Patient scheduled to have other endoscopic procedures on the same day - Prior alimentary tract surgery - Severe cardiopulmonary disease (ASA IV) - MOI use within 2 weeks of procedure
Which medical condition, disease, disorder, syndrome, illness, or injury is researched?
Adjunct Anesthesia Medication
Interventions can include giving participants drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available or noninvasive approaches such as surveys, education, and interviews.
Research studies and clinical trials typically have two or more research arms. An arm is a group of people who receive the same treatment in the study.
DiphenhydramineDiphenhydramine 50 mg IV 3 minutes prior to administration of other sedatives
Placebo0.9% sodium chloride 10 ml IV 3 minuted prior to administration of other sedatives
Start Date: December 2013
Completed Date: June 2017
Phase: Phase 4
Primary Outcome: Dosage of Fentanyl and Midazolam
Secondary Outcome: Quality of sedation
Study sponsors, principal investigator, and references
Principal Investigator: Salman Nusrat, MD
Lead Sponsor: University of Oklahoma
Abraham NS, Fallone CA, Mayrand S, Huang J, Wieczorek P, Barkun AN. Sedation versus no sedation in the performance of diagnostic upper gastrointestinal endoscopy: a Canadian randomized controlled cost-outcome study. Am J Gastroenterol. 2004 Sep;99(9):1692-9.