Vascularized Composite Allotransplantation for Multiple Extremity Amputations
|Study Design:||Intervention Model: Single Group Assignment
Masking: No masking
Primary Purpose: Treatment
|Official Title:||Vascularized Composite Allotransplantation for Multiple Extremity Amputations|
- Outcomes of limb transplantation [ Time Frame: Subjects will be followed for 18 months after transplantation ]We will undertake an objective evaluation of the results of limb transplantation in an "outcome-oriented" study
- Efficacy and optimization of the immune suppression protocol [ Time Frame: 18 months ]We will evaluate the risks of rejection or likelihood of tolerance induction by measuring specific parameters in the blood or tissue, including: Serum alloantibodies concentration, numbers/phenotype of specific T cell alloreactivity in the peripheral blood, phenotypic characterization of graft infiltrating cells and local gene expression of cells and cytokines.
|Study Start Date:||February 2010|
|Estimated Study Completion Date:||December 2020|
|Estimated Primary Completion Date:||December 2020 (Final data collection date for primary outcome measure)|
Subjects will undergo single or multiple limb transplantation
Procedure: Limb transplantation
Other Name: vascularized composite allotransplantation
Limb transplantation surgery, the transfer of the limb(s) from a deceased human donor to a patient with amputation of one or more limbss, is an experimental reconstructive procedure that has the potential to significantly improve the lives of amputees.
Limb transplantation is similar to face transplantation in that the tissues transplanted include skin, tendons, muscles, ligaments, bones and blood vessels. The transplant team at Brigham and Women's Hospital includes a wide variety of medical and surgical specialties. The team hopes to build upon the success of their first face transplantation to provide amputee patients with the significant benefits of limb transplantation.
Toward this goal, BWH is actively seeking qualified candidates for the limb transplant research study. We will be studying a small group of people to learn more about:
- How to advance the science of limb transplantation
- How to support and limit transplant rejection issues
- How people do after limb transplantation
We describe limb transplant surgery as a life-giving procedure because it has the potential to dramatically improve, that is to restore, both a patient's mental and physical health and his/her ability to function and integrate in society. However, as with any other type of organ transplantation, this improvement will require the patient to make a lifetime commitment to taking medications that suppress the body's immune system.
Conventional reconstruction methods are always considered first, but they may provide less than optimal results for certain patients. There are many sophisticated prostheses that satisfactorily replace the basic function of a missing limb. However, replacing limbs (in whole or in part) with prosthetics remains suboptimal in that prostheses do not provide sensation and do not have a natural appearance. Limbtransplant surgery, however, has the potential to deliver these desired functional and aesthetic benefits. Functionally, limb transplant surgery can provide a patient with new limbs that, after extensive rehabilitation, allow him/her to perform daily activities and, in most cases, return to work. Furthermore, the ability to restore a near-normal aesthetic appearance of the limb(s) can lead to tremendous psychological benefits, including elevated confidence and mood.
From the time we begin our search for a qualified limb transplant recipient to the continuing care we provide following surgery, a significant amount of time, expertise and attentiveness is contributed toward making the procedure a progressive success. Limb transplant candidates go through an extensive screening process that is likely to last several months. This screening includes a psychiatric and social support evaluation and a series of imaging tests to help determine a patient's physical and mental readiness for the procedure. If, upon completion of the screening process, it is determined that a patient is a suitable candidate, we will place the patient on a transplant waiting list. We will then begin working with the New England Organ Bank (NEOB) team to find a donor who matches the recipient's tissue requirements - for example similar age and correct blood type. This search could take many months, and, if a suitable donor is not found within one year, we will speak with the patient to determine whether he/she is willing to continue waiting.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01293214
|United States, Massachusetts|
|Brigham and Women's Hospital||Recruiting|
|Boston, Massachusetts, United States, 02115|
|Contact: Lisa Quinn 617-732-5303 firstname.lastname@example.org|
|Principal Investigator: Bohdan Pomahac, M.D.|