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PAMPer Study

The Prehospital Air Medical Plasma (PAMPer) Trial

This study is of interest to you because if you DON’T Opt-out, you ARE eligible.

As one of the busiest Level 1 Trauma Centers in the nation, with more than 3,000 admissions related to trauma each year, MetroHealth Medical Center, in conjunction with Case Western Reserve University, has been selected to conduct a research study that involves emergency treatment after a trauma when patient condition may not allow time for consent. The research study is titled “Prehospital Air Medical Plasma Trial,” or “PAMPer”, and is a four-year study sponsored by the U.S. Department of Defense. MetroHealth Medical Center and Case Western Reserve University are one of only six centers in the U.S. chosen to participate in this project. The study will be conducted over 4 years. The University of Pittsburgh will serve as the coordinating center for this multi-center clinical trial.

Study Overview:
The PAMPer study will determine the effect of infusing 2 units of AB (universal donor) plasma (a blood product) during air medical (helicopter) transport on 30 day mortality in patients with hemorrhagic shock as compared to standard medical care. Current standard medical care is to wait until arrival to the emergency department at the trauma center to administer plasma. We will also examine the effects of plasma on other clinical outcomes (clotting measurements on arrival to trauma center, total blood transfusion requirements during the first 24 hours, the development of multiple organ failure, hospital-acquired infection, acute lung injury (ALI) and transfusion related acute lung injury (TRALI).

In this region, Metro Life Flight will enroll patients with blunt or penetrating trauma and hemorrhagic shock who are being transported to MetroHealth Medical Center. Metro Life Flight already carries red blood cells for transfusion in these patients. Plasma will be added in this study. Plasma has not been available in the helicopter before, because there are many logistical issues related to coordinating between helicopters and the blood bank. If plasma treatment proves beneficial, this study could provide a roadmap for many other emergency services to use plasma nationwide.

This study will be conducted under an Exception from the Requirement for Informed Consent for Emergency Research because patients will be enrolled who are in extremis (life-threatening bleeding and shock), and the treatment will be started immediately (in the helicopter en-route to the trauma center). Please note, the only change to current standard of practice is that we will be administering plasma earlier, in the helicopter, instead of waiting until arrival at the trauma center to administer it.  Additionally, as is already done, patients will receive blood in the helicopter if it is medically needed.  All efforts will be made to receive consent for blood products should the situation allow it. 

Why are we doing this study?
Although advances in the care of the severely injured patient have occurred over the last decade, the most acute threat to severely injured patients is uncontrolled hemorrhage (bleeding). This bleeding results in significant early death and the development of complications like multiple organ failure. One reason for uncontrolled hemorrhage is the early failure of blood clotting (coagulopathy) after severe injury. Essentially, if the injury is too large, the body runs out of the factors to form blood clots to stop the bleeding. 

Increasingly, surgeons at trauma centers are using early transfusion of blood components to address this coagulopathy. Early transfusions can lower mortality and reduce the total amount of blood transfusion required. Starting treatment of coagulopathy in the pre-hospital setting, before arrival at the trauma center, might lower blood component transfusion requirements even more and might reduce death and complications after severe injury even further. Plasma (a blood product) contains many clotting factors and can be used to treat bleeding patients.

Who will be enrolled?

  • Patients 18-90 years of age
  • Seriously Injured Patients (car accidents, stab wounds, , falls from height, gunshot wounds)
  • Low blood pressure or bleeding that does not get better with standard treatment
  • Transport by helicopter to MetroHealth Medical Center

What will happen?

  • 2 units of plasma will be given early during helicopter transport
  • A small amount of blood will be collected within 60 minutes after arrival to the hospital and 24 hours after arrival to the hospital.
  • Due to the nature of the research, prior consent cannot be obtained.  Once patients have arrived at the hospital, all efforts will be made to find next of kin (NOK) or legally authorized representative (LAR) to obtain consent to continue participation.  Patients for whom NOK or LAR cannot be found will remain in the study. 
  • Patients’ medical records will be reviewed for 30 days after admittance to the hospital.
If you wish to comment on this study, please contact us

Click here to download a flier on the study.

Study Staff:
MetroHealth Principal Investigator
Jeffrey A. Claridge, MD, MS, FACS

Study Coordinators: 
Joanne Fraifogl, BS                    Stacey Coe
216-778-8324                           216-778-3658
jfraifogl@metrohealth.org           scoe@metrohealth.org

Community members who do not wish to participate in this research study can obtain a bracelet to opt out by contacting Meghan Buck at 412-864-1599 or email at buckml@upmc.edu


Click here to download a flier on the study (English)

Click here to download a brochure on the study (English)

Click here to download a flier on the study (Spanish)

Click here to download a brochure on the study (Spanish)

Click here to view a brief video describing the study (Coming soon)

Click here to view a PowerPoint presentation on the study (Coming soon)

Exception from the Requirement for Informed Consent for Emergency Research

Coordinating Center Website – The University of Pittsburgh  

Intervention Schematic:


Please review this informative video about the PAMPer Trial

© Copyright 2002 - The MetroHealth System|2500 MetroHealth Drive|Cleveland, OH 44109|(216) 778-7800|All Rights Reserved.
  • © Copyright 2002 - The MetroHealth System
  • 2500 MetroHealth Drive|Cleveland, OH 44109|(216) 778-7800
  • All Rights Reserved.