A Research Study to Evaluate the Effectiveness of Dexmedetomidine in Preventing Delirium After Hip Fracture Repair Surgery

NCT ID: NCT00460473

Last Updated: 2015-07-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE3

Total Enrollment

52 participants

Study Classification

INTERVENTIONAL

Study Start Date

2007-04-30

Study Completion Date

2007-11-30

Brief Summary

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The purpose of this study is to evaluate the efficacy and safety of perioperative use of dexmedetomidine in the prevention of postoperative delirium in subjects undergoing surgery for fractured hip with general anesthesia.

Detailed Description

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Postoperative delirium is an acute decline in cognition and attention which is usually transient but when delirium persists it can impact cognitive function, morbidity and morality. There are no drugs that are currently approved to prevent the onset of delirium but dexmedetomidine has the potential to meet this unmet medical need. Hip fractures, unfortunately are frequent occurrences in the elderly population and the elderly are more prone to developing delirium after surgery.

Dexmedetomidine is currently approved for use for 24 hours in patients on ventilators in the ICU. Study participation will last from within 72 hours of surgery to 3 days after surgery, continue throughout surgery and up to 2 hours after surgery. Delirium will be assessed prior to surgery and for 72 hours after surgery. This assessment will consist of questions to determine memory and thought process. At discharge patient's resource utilization will be evaluated and thirty days after surgery questions will be asked regarding quality of life.

Conditions

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Delirium

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Dexmedetomidine

Group Type EXPERIMENTAL

Dexmedetomidine

Intervention Type DRUG

Placebo (PBO)

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Interventions

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Dexmedetomidine

Intervention Type DRUG

Placebo

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Adult (≥18 years old) male or female who will undergo surgery for fractured hip with general anesthesia within 72 hours of admission to hospital.
2. If female, subject is non-lactating and is either:

1. Not of childbearing potential, defined as post-menopausal for at least 1 year or surgically sterile due to bilateral tubal ligation, bilateral oophorectomy or hysterectomy.
2. Of childbearing potential but is not pregnant at time of baseline and is practicing one of the following methods of birth control: oral or parenteral contraceptives, double-barrier method, vasectomized partner, or abstinence from sexual intercourse.
3. Subject is American Society of Anesthesiologists Physical Status I, II, III, or IV.
4. Subject (or subject's legally authorized representative) has voluntarily signed and dated the informed consent document approved by the Institutional Review Board (IRB).

Exclusion Criteria

1. Cognitive function level by Mini Mental State Exam (MMSE) of ≤20.
2. Subject has a positive CAM-ICU result for delirium at Screening or Baseline.
3. Subject requires chronic antipsychotic therapy.
4. Subject is anticipated to require additional surgical procedures during the 72 hour Screening Period and the 3 days Follow-up Period.
5. Subject is anticipated to require repair of pelvic fractures (eg,acetabulum).
6. Subject has participated in a trial with any experimental drug or experimental implantable device within 30 days prior to the study drug administration, or has ever been enrolled in this study.
7. Subject known to be in liver failure.
8. Subject has an anticipated potential for increased intracranial pressure or an uncontrolled seizure disorder or known psychiatric illness that could confound a normal response during study assessment.
9. Subject has received treatment with a α2-agonist or antagonist (within 14 days of study entry).
10. Subject for whom opiates, benzodiazepines, DEX or other α2-agonists are contraindicated.
11. Subject has, per the investigator's judgment, a known or suspected physical or psychological dependence on an abused drug, other than alcohol.
12. Subject has acute unstable angina, acute myocardial infarction, HR \<50 bpm, SBP \<90 mmHg, or third degree heart block unless the subject has a pacemaker.
13. Subject has any condition or factor which, in the Investigator's opinion, might increase the risk to the subject.
14. Subject is not expected to live more than 60 days.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hospira, now a wholly owned subsidiary of Pfizer

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Loma Linda University Medical Center

Loma Linda, California, United States

Site Status

LAC-USC Medical Center Los Angeles

Los Angeles, California, United States

Site Status

Huntington Memorial Hospital

Pasadena, California, United States

Site Status

University of Miami-Jackson Memorial Medical Center

Miami, Florida, United States

Site Status

Southeastern Clinical Research Consultants

Orlando, Florida, United States

Site Status

Orlando Regional Healthcare, Critical Care Medicine

Orlando, Florida, United States

Site Status

G and G Research, Inc.

Vero Beach, Florida, United States

Site Status

Orthopaedic Center of Vero Beach

Vero Beach, Florida, United States

Site Status

Medical College of Georgia

Augusta, Georgia, United States

Site Status

University of Iowa Hospitals and Clinics, Dept. of Anesthesia

Iowa City, Iowa, United States

Site Status

Outcomes Research Institute

Louisville, Kentucky, United States

Site Status

Louisiana State University, Dept. of Orthopaedic Surgery

Shreveport, Louisiana, United States

Site Status

Spectrum Health Blodgett Campus

Grand Rapids, Michigan, United States

Site Status

William Beaumont Hospital

Royal Oak, Michigan, United States

Site Status

Saint Mary's Duluth Clinic Health System

Duluth, Minnesota, United States

Site Status

Mayo Clinic College of Medicine, Dept. of Anesthesiology

Rochester, Minnesota, United States

Site Status

University of Missouri

Columbia, Missouri, United States

Site Status

Mount Sinai School of Medicine

Great Neck, New York, United States

Site Status

New York University Medical Center

New York, New York, United States

Site Status

Duke University Medical Center

Durham, North Carolina, United States

Site Status

The Cleveland Clinic Foundation

Cleveland, Ohio, United States

Site Status

Ohio State University Medical Center

Columbus, Ohio, United States

Site Status

University of Pittsburgh Medical Center, Presbyterian

Pittsburgh, Pennsylvania, United States

Site Status

University of Pittsburgh Medical Center

Pittsburgh, Pennsylvania, United States

Site Status

Vanderbilt University Medical Center

Nashville, Tennessee, United States

Site Status

Research Concepts

Bellaire, Texas, United States

Site Status

Parkland Health and Hospital System

Dallas, Texas, United States

Site Status

University of Virginia Health Systems

Charlottesville, Virginia, United States

Site Status

University of Wisconsin Medical School, Dept. of Anesthesiology

Madison, Wisconsin, United States

Site Status

VA Medical Center

Milwaukee, Wisconsin, United States

Site Status

Countries

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United States

Other Identifiers

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DEX-06-09

Identifier Type: -

Identifier Source: org_study_id

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