As a general policy, the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) invites investigator-initiated research project applications for ancillary studies to ongoing studies such as those in DILIN supported by the Institute. The goal of any ancillary study must complement but not overlap or interfere with the primary and secondary objectives of DILIN. Moreover, each applicant must agree to abide by DILIN procedures for conducting these studies. Qualified and interested investigators are invited to consult DILIN’s Ancillary Studies Guidelines.

We highly recommend investigators to explore the NIDDK Central Biorepository which includes the publicly available DILIN clinical data and bio-samples collected in DILIN. Please visit the NIDDK Central Biorepository for the prospective study: https://repository.niddk.nih.gov/studies/dilin-pro/, and retrospective study: https://repository.niddk.nih.gov/studies/dilin-retro/.

We also recommend that interested investigators contact one of the DILIN investigators who are also members of the DILIN  Steering Committee at https://dilin.org/contact-us/ for potential collaborations and ancillary studies proposals. All proposed ancillary studies collaborations should be submitted to the Ancillary Studies Committee through the data coordinating center in time for subsequent review, prior to submission to a funding agency. The DILIN Ancillary Studies and Steering Committees meet monthly with mutual aims to provide review and approval of internal and external ancillary studies and sample and data stewardship.