Step # | Step Name | Key Differentiating Requirements |
---|---|---|
1 | Hypothesis generation | a. Identify interesting categories of participants from primary study |
b. Access existing data and specimen information for those participants | ||
c. Provide sufficient information to external investigators for them to propose ancillary studies | ||
2 | Proposal review | a. Review availability of existing specimens |
b. Review priorities for use of remaining specimens, possibly reserving specimens | ||
c. Evaluate overlap and comparability of existing data and proposed measurements/analyses | ||
3 | Creation of protocol or plan | a. Decide which existing participant data and specimens to use. |
b. Plan expectations for collecting new ancillary data complementary to existing primary data | ||
4 | Consent verification or acquisition | a. Determine whether consent exists and is sufficient for desired analyses |
b. Obtain additional consent if necessary | ||
5 | Retrieval of existing data | a. Compile relevant subset of primary study data required for the ancillary study |
b. If external investigators are leading the ancillary study, share this subset of data with them. | ||
6 | Delivery and analysis of specimens | a. Request, locate, ship and track existing specimens, as well as manage material transfer agreements |
b. Maintain identifiers relevant to primary study during further specimen analysis | ||
7 | Data integration | a. Retain context and provenance from both primary and ancillary studies, including processing and quality control information |
b. Retain origination information (primary vs. ancillary) | ||
c. Resolve differences (representation, quality control, etc.) and join ancillary and primary data | ||
8 | Data/specimen repatriation | a. Contribute ancillary study data (raw and/or processed) back to the primary study |
b. Retain data context, provenance, processing and other metadata from ancillary study | ||
c. Return unused specimens | ||
9 | Publication | a. Coordinate preparation and review of publications across primary and ancillary investigators |