Contact Information

Primary Contact

Joanne Demchok
Program Director


9000 Rockville Pike
Bethesda, MD 20892


The National Clinical Trials Network Biospecimen Banks (NCTN) receive, store, and distribute human cancer biospecimens collected on NCTN clinical trials. NCTN Biobanks provide cancer researchers with quality, well-annotated biospecimens and associated clinical information. The NCTN Biobanks house solid tumor biospecimens from all organ sites, as well as hematological malignancy specimens.

Available Biospecimens

Biospecimen types available include, but are not limited to:
  1. Formalin-fixed, paraffin-embedded (FFPE) tissue
  2. Fresh frozen tissue
  3. Whole blood, serum, plasma, white blood cells, bone marrow
  4. Nucleic acids
  5. Urine, stool

User Guidelines

To search and access “legacy” biospecimens from completed trials, ALL INVESTIGATORS are asked to please visit the NCTN Navigator or NCTN Biospecimen Banks.
Requests for NCTN Biospecimens from completed NCTN clinical trials may be submitted by investigators in the research community, not only members of the NCTN Groups.


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