Cognitive Impairment Following Sedation for Colonoscopy With Propofol, Midazolam and Fentanyl Combinations

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Melbourne Health
ClinicalTrials.gov Identifier:
NCT00446420
First received: March 8, 2007
Last updated: May 28, 2013
Last verified: May 2013
  Purpose

Our hypothesis is that adding midazolam and/or fentanyl to propofol sedation for elective outpatient colonoscopy increases cognitive impairment at hospital discharge without improving intraoperative conditions or reducing intraoperative side-effects.

200 healthy patients aged 18 years or older will be randomised to receive propofol or propofol plus midazolam and/or fentanyl. Cognitive impairment will be tested at hospital discharge using Cogstate computerised testing software.


Condition Intervention Phase
Cognitive Impairment
Drug: Propofol, midazolam, fentanyl
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Outcomes Assessor)
Primary Purpose: Prevention
Official Title: Cognitive Impairment Following Sedation for Colonoscopy With Propofol, Midazolam and Fentanyl Combinations

Resource links provided by NLM:


Further study details as provided by Melbourne Health:

Primary Outcome Measures:
  • Cognitive impairment at hospital discharge after elective outpatient colonoscopy [ Time Frame: Before discharge from daycare facility ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Dreaming during sedation, intraoperative operating conditions and complications, satisfaction with care [ Time Frame: Before discharge from daycare facility ] [ Designated as safety issue: No ]

Enrollment: 200
Study Start Date: February 2007
Study Completion Date: February 2008
Primary Completion Date: February 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: 1
These patients will only receive intravenous propofol which will be titrated to an OAA/S score of 3. They will not receive fentanyl, midazolam or any other drugs
Drug: Propofol, midazolam, fentanyl
All drugs administered in doses according to anaesthetists' discretion during sedation for colonoscopy
Other Names:
  • Diprivan
  • Sublimase
  • Versed
Active Comparator: 2
These patients will receive propofol plus midazolam and/or fentanyl. Midazolam and fentanyl will be given in fixed doses first and propofol will be titrated to effect. All drugs will be given intravenously.
Drug: Propofol, midazolam, fentanyl
All drugs administered in doses according to anaesthetists' discretion during sedation for colonoscopy
Other Names:
  • Diprivan
  • Sublimase
  • Versed

Detailed Description:

A great variety of drug combinations are administered to patients having elective outpatient colonoscopy. In addition, as patients are going home, some may have residual cognitive deficits that making leaving the hospital unsafe. This study aims to find drugs combinations that are associated with the least cognitive impairment.

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Aged 18 years or older presenting for elective outpatient colonoscopy following full bowel preparation

Exclusion Criteria:

  • No cognitive impairment
  • Adequate English language comprehension
  • Not combined with other procedures
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00446420

Locations
Australia, Victoria
Royal Melbourne Hospital
Parkville, Victoria, Australia, 3050
Sponsors and Collaborators
Melbourne Health
Investigators
Principal Investigator: Kate Leslie, MD Melbourne Health
  More Information

No publications provided by Melbourne Health

Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Melbourne Health
ClinicalTrials.gov Identifier: NCT00446420     History of Changes
Other Study ID Numbers: 2006.228
Study First Received: March 8, 2007
Last Updated: May 28, 2013
Health Authority: Australia: Human Research Ethics Committee

Additional relevant MeSH terms:
Cognition Disorders
Delirium, Dementia, Amnestic, Cognitive Disorders
Mental Disorders
Midazolam
Fentanyl
Propofol
Adjuvants, Anesthesia
Central Nervous System Agents
Therapeutic Uses
Pharmacologic Actions
Hypnotics and Sedatives
Central Nervous System Depressants
Physiological Effects of Drugs
Anti-Anxiety Agents
Tranquilizing Agents
Psychotropic Drugs
Anesthetics, Intravenous
Anesthetics, General
Anesthetics
GABA Modulators
GABA Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Analgesics, Opioid
Narcotics
Analgesics
Sensory System Agents
Peripheral Nervous System Agents

ClinicalTrials.gov processed this record on October 19, 2014