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Recently, the US has seen a decline in the use of cord blood in transplants, according to a study by the RAND Corporation.
The research revealed a significant increase in the national cord blood inventory but also suggested many cord blood units may go unused because they have a total nucleated cell (TNC) count of less than 1.25 billion cells per unit.
RAND researchers conducted this study by examining past research about cord blood banks, analyzing data on public cord blood bank collection and use, and interviewing stakeholders such as blood bank leaders and transplant center physicians.
The data showed the number of hematopoietic stem cell transplants (HSCTs) performed in the US has increased in recent years.
However, the percentage of HSCTs in which cord blood is used has declined, from about 12% (n=822) of all HSCTs in 2010 to about 8% (n=718) of all HSCTs in 2015.
At the same time, public cord blood banks in the US have greatly increased their inventory. This is, at least in part, because the federal government began offering subsidies to public contractor banks with the goal of helping them obtain 150,000 new units of high-quality cord blood.
The numeric goal has been met, as the inventory currently exceeds 200,000 units. However, many of the units cannot be considered high-quality because they have a TNC count of less than 1.25 billion cells.
The researchers noted that the government subsidies are not structured to discourage the processing and banking of cord blood units with lower TNC counts.
In fact, the team found that about half of the national inventory is made up of cord blood units with TNC counts of less than 1.25 billion cells. They said the probability that such a unit will be used in a given year is about 0.1%, and there’s an 11% chance it will ever be used.
On the other hand, there is a 1% to 3% chance a cord blood unit with a TNC count of more than 1.5 billion will be used in a given year, and there’s a 61% chance it will ever be used.
Therefore, the researchers recommend the federal government find ways to encourage public cord blood banks to collect samples with higher TNC counts, as they will help expand the utility of the national inventory.
Support for this research was provided by the US Department of Health and Human Services, Office of the Assistant Secretary of Health. 
Recently, the US has seen a decline in the use of cord blood in transplants, according to a study by the RAND Corporation.
The research revealed a significant increase in the national cord blood inventory but also suggested many cord blood units may go unused because they have a total nucleated cell (TNC) count of less than 1.25 billion cells per unit.
RAND researchers conducted this study by examining past research about cord blood banks, analyzing data on public cord blood bank collection and use, and interviewing stakeholders such as blood bank leaders and transplant center physicians.
The data showed the number of hematopoietic stem cell transplants (HSCTs) performed in the US has increased in recent years.
However, the percentage of HSCTs in which cord blood is used has declined, from about 12% (n=822) of all HSCTs in 2010 to about 8% (n=718) of all HSCTs in 2015.
At the same time, public cord blood banks in the US have greatly increased their inventory. This is, at least in part, because the federal government began offering subsidies to public contractor banks with the goal of helping them obtain 150,000 new units of high-quality cord blood.
The numeric goal has been met, as the inventory currently exceeds 200,000 units. However, many of the units cannot be considered high-quality because they have a TNC count of less than 1.25 billion cells.
The researchers noted that the government subsidies are not structured to discourage the processing and banking of cord blood units with lower TNC counts.
In fact, the team found that about half of the national inventory is made up of cord blood units with TNC counts of less than 1.25 billion cells. They said the probability that such a unit will be used in a given year is about 0.1%, and there’s an 11% chance it will ever be used.
On the other hand, there is a 1% to 3% chance a cord blood unit with a TNC count of more than 1.5 billion will be used in a given year, and there’s a 61% chance it will ever be used.
Therefore, the researchers recommend the federal government find ways to encourage public cord blood banks to collect samples with higher TNC counts, as they will help expand the utility of the national inventory.
Support for this research was provided by the US Department of Health and Human Services, Office of the Assistant Secretary of Health.
Recently, the US has seen a decline in the use of cord blood in transplants, according to a study by the RAND Corporation.
The research revealed a significant increase in the national cord blood inventory but also suggested many cord blood units may go unused because they have a total nucleated cell (TNC) count of less than 1.25 billion cells per unit.
RAND researchers conducted this study by examining past research about cord blood banks, analyzing data on public cord blood bank collection and use, and interviewing stakeholders such as blood bank leaders and transplant center physicians.
The data showed the number of hematopoietic stem cell transplants (HSCTs) performed in the US has increased in recent years.
However, the percentage of HSCTs in which cord blood is used has declined, from about 12% (n=822) of all HSCTs in 2010 to about 8% (n=718) of all HSCTs in 2015.
At the same time, public cord blood banks in the US have greatly increased their inventory. This is, at least in part, because the federal government began offering subsidies to public contractor banks with the goal of helping them obtain 150,000 new units of high-quality cord blood.
The numeric goal has been met, as the inventory currently exceeds 200,000 units. However, many of the units cannot be considered high-quality because they have a TNC count of less than 1.25 billion cells.
The researchers noted that the government subsidies are not structured to discourage the processing and banking of cord blood units with lower TNC counts.
In fact, the team found that about half of the national inventory is made up of cord blood units with TNC counts of less than 1.25 billion cells. They said the probability that such a unit will be used in a given year is about 0.1%, and there’s an 11% chance it will ever be used.
On the other hand, there is a 1% to 3% chance a cord blood unit with a TNC count of more than 1.5 billion will be used in a given year, and there’s a 61% chance it will ever be used.
Therefore, the researchers recommend the federal government find ways to encourage public cord blood banks to collect samples with higher TNC counts, as they will help expand the utility of the national inventory.
Support for this research was provided by the US Department of Health and Human Services, Office of the Assistant Secretary of Health.