NCT00853333

Brief Summary

The investigators propose to evaluate the potential effect of sedation on pain perception in two ways, by asking for a participant's pain rating(subjective) and by evaluating a subject's brain activation using fMRI(objective).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
86

participants targeted

Target at P50-P75 for not_applicable pain

Timeline
Completed

Started Nov 2008

Longer than P75 for not_applicable pain

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2008

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

February 26, 2009

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 2, 2009

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2012

Completed
2.5 years until next milestone

Results Posted

Study results publicly available

June 26, 2014

Completed
Last Updated

June 26, 2014

Status Verified

June 1, 2014

Enrollment Period

3.2 years

First QC Date

February 26, 2009

Results QC Date

August 23, 2013

Last Update Submit

June 24, 2014

Conditions

Keywords

PainPropofolDexmedetomidineMidazolamEffects of sedation on pain perception.

Outcome Measures

Primary Outcomes (1)

  • Pain Rating Change

    Mechanical Slide Algometer (www.decisionaidsonline.com), Range: "No Pain Sensation" (1) to " Most Intense Sensation Imaginable" (10) 10 point scale. Change Time Points: Baseline (no sedation), Sedation. Same Day Intervention.

    Sedation

Study Arms (3)

Propofol

ACTIVE COMPARATOR

Administration via an IV

Drug: propofol

Midazolam

ACTIVE COMPARATOR

Administration via an IV

Drug: midazolam

Dexmedetomidine

ACTIVE COMPARATOR

Administration via an IV

Drug: dexmedetomidine

Interventions

Dexmedetomidine
Midazolam
Propofol

Eligibility Criteria

Age19 Years - 40 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Healthy subjects
  • years or older able to follow study instructions

You may not qualify if:

  • Age less than 19 or greater than 40
  • Pregnant female
  • Obesity (BMI \> or =35)
  • Non-English speaking/reading participants
  • Sleep apnea
  • Pulmonary problems such as moderate or severe bronchial asthma
  • Cardiovascular problems such as hypertension
  • History of claustrophobia
  • Presence of a pacemaker, defibrillator, surgically placed metallic object (e.g., hip replacement)or other implanted device
  • Presence of an unremoved bullet or shrapnel in the body
  • Presence of a prosthetic that is not removable
  • Presence of a hearing aid needed for hearing
  • Head girth exceeding that of the head coil used in the magnet
  • Extensive metalwork on or in teeth, or irremovable false teeth or bridgework
  • Epilepsy
  • +5 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Alabama at Birmingham

Birmingham, Alabama, 35294, United States

Location

Related Publications (1)

  • Frolich MA, Zhang K, Ness TJ. Effect of sedation on pain perception. Anesthesiology. 2013 Mar;118(3):611-21. doi: 10.1097/ALN.0b013e318281592d.

MeSH Terms

Conditions

Pain

Interventions

DexmedetomidineMidazolamPropofol

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

ImidazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsBenzodiazepinesBenzazepinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingPhenolsBenzene DerivativesHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic Chemicals

Results Point of Contact

Title
Michael Froelich
Organization
University of Alabama at Birmigham

Study Officials

  • Michael A Froelich, M.D.

    University of Alabama at Birmingham

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
M.D.

Study Record Dates

First Submitted

February 26, 2009

First Posted

March 2, 2009

Study Start

November 1, 2008

Primary Completion

January 1, 2012

Study Completion

January 1, 2012

Last Updated

June 26, 2014

Results First Posted

June 26, 2014

Record last verified: 2014-06

Locations