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Patient-Specific Precision Injury Signatures in Multiply Injured Orthopaedic Patients (PRECISE)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT03772730
Recruitment Status : Recruiting
First Posted : December 11, 2018
Last Update Posted : July 27, 2020
United States Department of Defense
Information provided by (Responsible Party):
Major Extremity Trauma Research Consortium

Brief Summary:
The purpose of this study is to evaluate the use of precision methods that quantify injury and response to injury to predict how short-term clinical outcomes are affected by initial and staged orthopaedic interventions in multiply injured patients (MIPs) who sustain major orthopaedic trauma.

Condition or disease
Pelvic, Acetabular, Femur, or Diaphyseal Tibial Operative Orthopaedic Injuries

Detailed Description:

There is currently a knowledge gap regarding in the treatment of the severely injured MIP, as clinicians are often challenged by when non-life threatening orthopaedic procedures should be performed. Information to guide orthopaedic interventions in MIPs is based primarily on resuscitation parameters and injury severity metrics.Lack of consensus among surgeons regarding choices of orthopaedic interventions reflects the paucity of data to form treatment decisions.

This study will define the key parameters affecting these decisions in a quantitative manner by exploring the efficacy of a precision medicine approach to guide surgical decisions in multiply injured patients (MIPs) with skeletal trauma. According to the National Institutes of Health (NIH),36 precision medicine is "an emerging approach for disease treatment and prevention that takes into account individual variability in genes, environment, and lifestyle for each person." This approach will allow clinicians and researchers to predict more accurately which treatment and prevention strategies for a particular disease will work in which groups of people. The application of precision medicine will bring to bear evidence-based tools that can guide decisions facing the treating surgeons regarding the optimal timing of definitive fracture surgery after injury, as well as defining the magnitude of surgical intervention which may be pursued without engendering clinical complications.

Specific Aim 1: Define groups of patients based on Precision Injury Signatures (mechanical and ischemic injury characteristics and immunologic response profile) that correspond to the following short term clinical outcomes;

  1. Multiple organ dysfunction
  2. Nosocomial infection
  3. Wound complications
  4. Resource utilization (ICU/hospital LOS, days on mechanical ventilation, discharge disposition)
  5. Death

Hypothesis 1: Patients who develop complicated short term outcomes will demonstrate distinct Precision Injury Signatures compared to patients who have uncomplicated outcomes for injuries of similar magnitude.

Specific Aim 2: Evaluate the impact of timing and magnitude of orthopaedic surgical interventions on progression of patient-specific physiologic and immunologic response. Describe changes in physiologic and immunologic response after initial and staged orthopaedic interventions.

Hypothesis 2: Immunologic and physiologic response to surgery will be a function of initial Precision Injury Signature and timing/magnitude of orthopaedic surgical interventions.

Specific Aim 3: To develop surgical decision rules related to timing of definitive orthopaedic intervention that optimize short term clinical outcomes.

Hypothesis 3a: Initial Precision Injury Signatures can be used to identify orthopaedic trauma patients who are best treated with early definitive treatment or staged definitive intervention.

Hypothesis 3b: Progression of Precision Injury Signatures can be used to determine optimal timing and choices of definitive orthopaedic interventions.

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Study Type : Observational
Estimated Enrollment : 400 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: A Multi-Center, Prospective Observational Study to Evaluate the Use of Patient-Specific Precision Injury Signatures to Optimize Orthopaedic Interventions in Multiply Injured Patients
Actual Study Start Date : March 20, 2019
Estimated Primary Completion Date : December 31, 2021
Estimated Study Completion Date : September 30, 2022

Group 1
Multiply injured patients having at least one operative orthopaedic injury to the pelvis, acetabulum, femur, or diaphyseal tibia with planned definitive fixation to occur prior to discharge.

Primary Outcome Measures :
  1. Clinical outcomes recorded during 6month post injury medical record review [ Time Frame: 6 months post injury ]
    Number of occurrences of multiple organ dysfunction, nosocomial infection, wound complications, resource utilization and death as noted in medical record review.

Biospecimen Retention:   Samples With DNA

Information from the National Library of Medicine

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, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 55 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Adult (18-55) patients sustaining multiple injuries, including at least one qualifying orthopaedic injury to the pelvis, acetabulum, femur, or diaphyseal tibia.

Inclusion Criteria:

  1. Adult ages 18 years old to 55 years old inclusive;
  2. Direct admission to hospital from scene of injury, or if transferred, admitted no more than 6 hours from injury
  3. Full trauma activation with either direct admission to Intensive Care Unit (ICU) or other higher level of care, or taken directly to surgery and admitted to ICU after surgery;
  4. Sustaining at least one operative orthopaedic injury to the pelvis, acetabulum, femur, or diaphyseal tibia with planned definitive fixation to occur prior to discharge.

Exclusion Criteria:

  1. Non-survivable head trauma.
  2. Signs of severe traumatic brain injury indicated by a GCS of < 7 at the time of admission and no improvement in the GCS by the time of consent at 48hr after admission.
  3. Spinal cord injury with likely permanent neurologic deficits
  4. Pre-existing organ dysfunction or failure prior to their injury, including but not limited to end-stage renal disease, liver failure, congestive heart failure, or severe COPD requiring home oxygen.
  5. Qualifying orthopaedic injury primarily a periarticular fracture (tibial pilon or plateau) with planned delay to definitive fixation for soft tissue reasons.
  6. Primary blood draw could not be obtained within 3 hours of presentation
  7. Patient is pregnant
  8. Patient is a prisoner/incarcerated
  9. Patient or legally authorized representative (LAR) unable to provide consent prior to 48 hour blood draw.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03772730

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Contact: Todd McKinley, MD 317-944-9400

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United States, Florida
University of Miami Ryder Trauma Center Not yet recruiting
Miami, Florida, United States, 33101
United States, Indiana
Methodist Hospital/Indiana University Recruiting
Indianapolis, Indiana, United States, 46202
United States, Kentucky
University of Kentucky Medical Center Not yet recruiting
Lexington, Kentucky, United States, 40536
United States, Maryland
University of Maryland, R Adams Cowley Shock Trauma Center Recruiting
Baltimore, Maryland, United States, 21201
United States, North Carolina
Carolinas Medical Center Recruiting
Durham, North Carolina, United States, 28232
United States, Pennsylvania
University of Pittsburgh Medical Center Not yet recruiting
Pittsburgh, Pennsylvania, United States, 15213
United States, Texas
UT Health: The University of Texas Health Science Center at Houston Medical School Recruiting
Houston, Texas, United States, 77030
United States, Washington
University of Washington Harborview Medical Center Recruiting
Seattle, Washington, United States, 98104
Sponsors and Collaborators
Major Extremity Trauma Research Consortium
United States Department of Defense
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Principal Investigator: Todd McKinley, MD Indiana University/Methodist Hospital
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Responsible Party: Major Extremity Trauma Research Consortium Identifier: NCT03772730    
Other Study ID Numbers: 00008259
First Posted: December 11, 2018    Key Record Dates
Last Update Posted: July 27, 2020
Last Verified: July 2020

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Wounds and Injuries