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  HLA Type Public NCBP Cord Blood Unit Search




A Preliminary Count of Available Units in the New York Blood Center's National Cord Blood Program Inventory that Match a Patient's HLA Type

The purpose of this feature is to provide a preliminary view of a patient's likelihood of finding a suitable match from the NYBC's National Cord Blood Program inventory of publicly banked cord blood units. This "public" online search capability can be used by any interested party and is carried out at low resolution (serological) level of HLA (Human Leukocyte Antigen) matching. In general, the more matches found at this level, the higher the chance that a "formal" search using high resolution HLA typing will find good matches for the patient.

PLEASE NOTE: The "public" search is NOT a "formal" search request. Only Transplant Centers can submit a formal search request (currently via fax and soon through the Transplant Center Log-In section of the website).

Before you actually submit your search, please note that:

  • This public search provides the number of cord blood units available at the time of the search in the NYBC's National Cord Blood Program inventory that match the patient's HLA type at the 6/6, 5/6 or 4/6 low resolution level.The inventory changes daily.
  • In general, transplant recipients do better when they get a cord blood unit that closely matches their HLA type at high resolution and/or has a good cell dose. Patients can also do well with a cord blood unit that is only a 4/6 match but has a relatively high cell dose.
  • The public search does NOT consider the cell dose available in these units.

To do a public search, all you need to have is the patient's HLA type. If you do not know it, please ask the patient's physician of transplant coordinator for this information. Next, follow these three simple steps:

STEP 1: Scroll down to the Public Cord Blood Search Box;

STEP 2: Read the instructions and select your HLA types from the drop-down menus. Please note the following as you enter your HLA types: For this preliminary search, each HLA antigen is entered as two digits. If your HLA typing report shows more than two digits for some or all antigens, use just the first two digits to select the HLA antigen from the drop-down menu below. For example, if the first HLA-A antigen is 0204, select 02 for HLA-A1; if the second A antigen is 2401, select 24 for HLA-A2. However, in a few cases, all four digits must be used. Each of these exceptions is listed as a four digit type in the drop-down menus.

STEP 3: Click "Search" and send your inquiry online.

Enter patient's HLA types using the drop down menus below.
First HLA
Second HLA


RESULTS: You will receive an immediate, real-time report of the numbers of possible matches on your screen. Useful and important instructions are contained in your Preliminary Results Report. We urge you to print it out, read it, then consider and follow the suggestions noted.


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Cord blood is an investigational product not licensed by the FDA.