Twenty-five years. 4,000 transplants.
The Nebraska Medical Center is celebrating a significant milestone this year. The
Bone Marrow and Stem Cell Transplant Program at The Nebraska Medical Center, known
for its innovation and success in stem cell transplantation, is celebrating its
25-year anniversary.
The program was founded in 1983 by James Armitage, M.D., hematologist/oncologist
at The Nebraska Medical Center and Shapiro Professor of Medicine, world renowned
for his clinical research in lymphoma and bone and stem cell transplantation. Drawing
patients from across the country and around the world, the Bone Marrow and Stem
Cell Transplant Program is ranked as one of the busiest adult lymphoma and pediatric
programs in the country. The program averages 150 transplants a year and has performed
more than 4,000 transplants since its founding.
There are many reasons why people come from all over the country and around the
world to receive care from the transplant program at The Nebraska Medical Center.
Since its founding 25 years ago, physicians and researchers at The Nebraska Medical
Center program have been pioneers in the field and have been recognized internationally
for a number of ground-breaking advancements. These advancements have helped improve
success rates and have made bone marrow and stem cell transplants a more viable
and promising option for a growing number of patients. This includes those with
malignancies that include primarily lymphomas, leukemias, multiple myeloma as well
as some blood disorders.
The first of these revolutionary achievements was the study and introduction of
autogolous transplantation by Dr. Armitage and his colleagues at The Nebraska Medical
Center, which served as the starting point and foundation for the program’s success.
“At the time, bone marrow transplants were still a very new thing,” explains Dr.
Armitage. “Allogeneic transplants, in which stem cells are harvested from a donor,
were increasingly being done, but they were quite dangerous and risky. We wanted
to find a way to help people who had otherwise incurable lymphoma. So we developed
a hypothesis and began testing autogolous transplants as another option for these
people.”
Autogolous transplants involve using the patient’s own stem cells, which reduces
the complexity of the procedure and eliminates rejection issues such as graft versus
host disease. This condition, which occurs in more than half of all allogeneic transplants,
says Dr. Armitage, occurs when the new immune cells recognize that they are not
in the right body and attack the other cells of the body. Today, autogolous transplants
are the preferred form of transplantation for more than three-quarters of lymphoma
patients, says Dr. Armitage.
Another milestone in the field of bone marrow and stem cell transplantation was
the development of stem cell transplantation, which was introduced in 1984 by Margaret
Kessinger, M.D., hematologist/oncologist at The Nebraska Medical Center. The use
of peripheral blood-derived stem cells, as opposed to bone marrow-derived stem cells,
has become the standard of care for transplantation. This has helped improve outcomes
for autogolous transplant patients, contributed to much quicker recovery times and
decreased infection rates. Peripheral blood-derived stem cell transplant is similar
to bone marrow transplant except the cells are collected from those circulating
in the blood rather than bone marrow. Bone marrow is the spongy tissue found inside
the bones. It produces the body’s blood cells and cells of the immune system. The
blood cells of the bone marrow, white blood cells, red blood cells, platelets and
others, all come from one type of cell called the stem cell.
The process for removing stem cells is much easier, quicker and more comfortable
for the patient, notes Julie Vose, M.D., chief of Hematology/Oncology at the University
of Nebraska Medical Center. For instance, bone marrow removal required general anesthesia
and was performed by using numerous needles to inject the patient until enough marrow
had been withdrawn. In comparison, stem cells are removed in a two-to three-hour
process in which a catheter is placed into the chest and inserted into a large blood
vessel. The blood is circulated through a special machine that separates out the
stem cells from the rest of the blood. The stem cells are then frozen and stored
until they are ready to be re-infused back into the patient.
Physicians and researchers at The Nebraska Medical Center have also been extensively
involved in the study and use of colony stimulating factors, also called growth
factors. Growth factors are drugs that are used to stimulate the growth of cells
before the collection of stem cells and are used during and after transplant. “By
being able to stimulate and increase the growth of stem cells after transplant,
today we are seeing decreased infections, lower death rates, fewer transfusions
and reduced recovery time in the hospital,” says Dr. Vose.
Other important treatment advancements that have had a significant impact in improving
the outcomes for patients, says Dr. Vose, include improvements in supportive care
techniques, anti-rejection medications and the ability to prevent and treat complications,
especially infections.
“Twenty years ago, 30 to 40 percent of adult patients died from complications of
an autogolous transplant,” says Dr. Vose. “Today, that number is down to 1 to 2
percent.”
In addition, adult transplant candidates used to be limited to those younger than
60 years of age. Today, transplants are performed on individuals as old as 75 years
old. Survival rates average 50 to 60 percent, depending on the type of malignancy,
compared to approximately 20 to 40 percent 10 years ago.
“Research is critical,” says Dr. Armitage. “As leaders in research, we are able
to offer our patients new and promising therapies before anyone else. You can either
watch others do it or you can be the ones doing it, and we are definitely leaders
in this area.”
Pediatric transplants are another component of the Bone Marrow and Stem Cell Transplant
Program. Started by Peter Coccia, M.D., hematologist/oncologist at The Nebraska
Medical Center, in 1987, the program has performed more than 335 transplants. Transplants
in the pediatric population are normally reserved for patients with more aggressive
disease and is far less common than adult transplants. The majority of pediatric
transplants are performed on patients with acute lymphoblastic leukemia. More than
80 percent of these patients will be cured with conventional chemotherapy, says
Al Grovas, M.D., hematologist/oncologist and clinical director for the Pediatric
Bone Marrow and Stem Cell Transplant Program, leaving about 20 percent of patients
who will need a stem cell transplant. “The knowledge curve has risen steadily since
the first pediatric transplant in 1987,” says Dr. Grovas. “And with that, improved
success rates have followed suit.”
“The Nebraska Medical Center program is unique in that it shares the same transplant
unit as the adult program,” notes Dr. Grovas. “This provides us the advantage of
sharing all of the same resources and the expertise of our experienced nursing staff
and other healthcare professionals.”
The Nebraska Medical Center program is also part of the National Institutes of Health/National
Cancer Institute Bone Marrow Transplant Clinical Trials Network. This is a consortium
of 16 transplant centers across the country that collaborate on clinical trials
in order to derive data from a larger population of patients and to allow for greater
sharing of information between centers. Through this network, doctors can study
and refine their techniques to diagnose, treat and follow patients to provide them
with optimal care.
There’s no program like ours at The Nebraska Medical Center in the region, notes
Theresa Franco, executive director of the Cancer program. “We have experienced physicians
focused around specific diseases, an investigational mentality and pioneering treatments.
We have built this program on total commitment, total expertise and total engagement
of our patients and families.
Dr. Armitage says his ultimate hope is that the Bone Marrow and Stem Cell Transplant
Program will some day go out of business. “Because that would mean that we had learned
enough about treating these cancers that patients would no longer need transplants,”
he says. And you can be sure that Dr. Armitage and researchers at The Nebraska Medical
Center will have played a major role in that scenario should it some day come to
fruition.