The use of specimens at the repositories for research beyond the study for which they were originally collected requires a formal study proposal. This proposal is called a New Works Concept Sheet, or NWCS.

The NWCS proposal submission and review process happens outside this website. Each clinical trial network has a different submission process. Review the applicable submission process and follow the network's instructions.

Before you submit...

Please be sure to do the following before submitting a proposal:

  • Use the search tool to see what types of specimens are available.

  • Review articles already published about studies that collected specimens at the repositories. Links to these articles can be found using the search tool .

  • Review the NWCS submission process for the network that collected the specimens.