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CIBMTR Sample Inventory

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Sample Types and Inventory Summary

The Research Sample Repository contains approximately 2.6 million sample aliquots from more than 46,430 first allogeneic related and unrelated transplant recipient/donor (or cord blood) pairs with complete, validated clinical outcome data from the CIBMTR Observational Database. The majority of the paired samples have complete high-resolution data available for HLA-A, B, C, DRB1/3/4/5, DQ and DP loci.

Sample Types

Samples in the Research Sample Repository are stored as:

  • Whole blood
  • Cryopreserved whole blood
  • Plasma
  • Blood spotted on filter paper
  • Peripheral blood mononuclear cells (PBMC) viable and non-viable
  • B-Lymphoblastoid cell lines (B-LCL) viable and non-viable
  • Granulocytes
  • Serum
  • DNA
  • Whole genome amplified DNA

Available sample types vary by sample source and year of collection. Sample sources include: adult and pediatric related/unrelated donors, cord blood and transplant recipients. Samples from recipients are drawn before the patient’s conditioning regimen begins. Prior to January 1, 2000, 100-day post-transplant samples were also drawn.

Inventory Summary

Research Sample Repository Inventory as of September 2018
Number of unrelated Donor/Recipient pairs: 40,606
Number of unrelated Cord blood/Recipient pairs: 6,645
Number of unique unrelated Donor ID: 70,029
Number of unique unrelated Recipient ID: 63,196
Number of unique Cord ID: 12,122
Number of unique related Donor ID: 8,915
Number of unique related Recipient ID: 9,281
Number of related Donor/Recipient Pairs: 7,855


View a detailed summary of available recipient and/or donor samples from first transplants, which includes information about the sample inventory by variable, including: age, gender, high-resolution typing, disease status, graft type, conditioning regimen, GVHD prophylaxis, and more: Repository Sample Inventory (PDF).

More information

For information about the availability of sample types or specific inventory queries, contact research-repos@nmdp.org.


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Last Updated: 9/6/2018 8:31 AM
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