Understanding the Pathogenesis and Etiology of Type 1 Diabetes Using Biosamples and Subjects from Clinical Studies (DP3) | Apply Online

Opportunity Summary:

This government grant opportunity, titled "Understanding the Pathogenesis and Etiology of Type 1 Diabetes Using Biosamples and Subjects from Clinical Studies (DP3)," is a National Institutes of Health (NIH) Funding Opportunity Announcement (FOA) that focuses on advancing research into why type 1 diabetes develops (etiology) and how the disease process unfolds (pathogenesis). The central idea is to leverage a major strength of modern type 1 diabetes research: access to people and biological samples collected through well-designed clinical trials and longitudinal clinical studies. Rather than starting from scratch with new recruitment and sample collection, the FOA encourages investigators to build on existing cohorts where participants have already been carefully characterized, particularly in ways that matter for type 1 diabetes risk, such as clinical phenotype data and genetic risk information.

The FOA is specifically aimed at collaborative projects that use subjects and/or biosamples from clinical trials and studies involving individuals who have been phenotypically and genetically characterized for risk of developing type 1 diabetes. In practice, that means proposals are expected to make strong use of existing human data and sample resources, such as stored blood, serum, plasma, immune cells, DNA, or other specimen types collected under standardized clinical study conditions. This emphasis reflects the reality that type 1 diabetes is a complex, multi-factorial autoimmune disease, and teasing apart cause, timing, and mechanisms often requires studying human subjects across different stages of risk and progression, ideally using deeply annotated clinical and genetic information.

Administratively, this is a discretionary grant program run under the NIH umbrella and issued as a grant funding instrument. The opportunity is identified by Funding Opportunity Number RFA-DK-15-018. It was posted on August 4, 2015, with an original and current closing date of November 12, 2015, and it was archived on December 13, 2015. Even though it is archived, the details matter for understanding the intent and structure of the program and for anyone tracking prior NIH initiatives in type 1 diabetes research.

In terms of funding scale, the FOA listed an estimated total funding amount of $4,000,000 and anticipated about 4 awards. The award ceiling was $1,600,000. No cost sharing or matching requirement was listed, which generally means applicants were not required to contribute non-federal funds as a condition of eligibility, making it more accessible to a broad range of research organizations.

The activity category was listed under Food and Nutrition Health, and the CFDA numbers associated with the announcement were 93.847 (Diabetes, Digestive, and Kidney Diseases Extramural Research), 93.855 (Allergy and Infectious Diseases Research), and 93.856 (Microbiology and Infectious Diseases Research). Those program codes signal that the NIH viewed the scientific scope as crossing traditional boundaries: type 1 diabetes sits at the intersection of endocrinology and metabolism, immunology, infectious disease hypotheses, and microbial/environmental influences, and this FOA was positioned to support work that could span those areas.

Eligibility was intentionally broad. Eligible applicants included many types of U.S.-based entities such as public and private institutions of higher education, nonprofits (including both 501(c)(3) and non-501(c)(3) organizations), small businesses, for-profit organizations other than small businesses, and multiple levels of government (state, county, city/township), plus special district governments, independent school districts, and public housing authorities/Indian housing authorities. The FOA also explicitly included a wide set of other eligible applicants such as Historically Black Colleges and Universities (HBCUs), Hispanic-serving Institutions, Tribal Colleges and Universities (TCCUs), Alaska Native and Native Hawaiian Serving Institutions, Asian American and Native American Pacific Islander Serving Institutions (AANAPISIs), faith-based and community-based organizations, regional organizations, U.S. territories or possessions, and eligible agencies of the federal government. Notably, eligibility also extended to non-domestic (non-U.S.) entities (foreign organizations), which signals NIH openness to international collaboration or unique foreign cohorts and expertise, as long as the project fit NIH requirements and the scientific rationale was strong.

Conceptually, the FOA is best understood as an effort to speed discovery by using high-value human clinical study resources to answer hard mechanistic questions about type 1 diabetes. It favors studies that can connect genetic risk and detailed clinical phenotypes with biological signals found in biosamples, potentially illuminating immune pathways, triggers, early markers of disease development, and the sequence of events that leads from risk to autoimmunity to clinical diabetes. Because it highlights subjects already characterized for risk, it implicitly supports research into pre-symptomatic stages of type 1 diabetes, where insight into early immune changes or environmental contributors could be especially impactful for prediction and prevention strategies.

For applicants at the time, the practical implication was that a competitive proposal would likely need (1) clear access to relevant clinical trial or study participants and/or stored biosamples, (2) a strong plan for using existing phenotypic and genetic characterization, and (3) a collaborative structure capable of integrating clinical data, laboratory assays, and analytical approaches to produce credible insights into etiology and pathogenesis. The announcement also provided an additional information link through the NIH grants guide and listed NIH Office of Extramural Research (OER) webmaster contacts for access or linking issues, underscoring that the authoritative requirements and application instructions were maintained in the full FOA text on the NIH site.

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