Biospecimen Complexity and the Evolution of Biobanks.

Biospecimens are critical in driving health research. There is increased demand for scale and quality of biospecimens that in turn drives biobanking operational costs, influences utilization, and threatens the sustainability of individual biobanks. Biospecimen research has begun to inform the details of new biobanking standards and the steps of the biobanking process that are most important to focus on to achieve higher quality. This focus on quality is currently centered mostly on intrinsic features of biospecimens and their annotating data. This review highlights additional quality features that are important to researchers in determining the fit for purpose in their research. First, we define complex qualities as those that are mostly extrinsic to the individual biospecimen and data, and second, we provide data on the growth in demand for biospecimens with this type of quality in cancer research biobanks. Finally, we discuss why biospecimen complexity is a challenge for biobanks and utilization of existing collections, and provide examples of strategies biobanks can consider to improve their focus on this aspect of quality, as we predict that researcher demand for complex biospecimens will continue to expand in the future.