Exploratory/Developmental Clinical Research Grants in Obesity (R21) | Apply Online

Opportunity Summary:

The grant opportunity "Exploratory/Developmental Clinical Research Grants in Obesity (R21)" (Funding Opportunity Number PA 09 124) is a National Institutes of Health (NIH) funding announcement designed to speed up the discovery and early testing of promising ways to prevent or treat overweight and obesity in both adults and children. It is led by several NIH components working together, including the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), the National Heart, Lung and Blood Institute (NHLBI), the National Cancer Institute (NCI), the National Center for Complementary and Alternative Medicine (NCCAM, now known as NCCIH), and the Office of Dietary Supplements (ODS). The central idea is to support early stage, innovative clinical research that can quickly move the field toward more effective interventions, including approaches that may still be preliminary but have strong potential to open new directions or generate critical proof-of-concept evidence.

The scope of what NIH is looking for under this announcement is intentionally broad, but it is clearly centered on clinical and translational relevance. Applicants are encouraged to propose exploratory or developmental clinical studies, meaning projects that may involve early testing of an intervention, development of clinical methods, pilot clinical trials, feasibility studies, or other short, focused clinical efforts that can justify and shape larger definitive trials later. The FOA also allows exploratory epidemiological research, as long as it is framed with a clear purpose of informing translational or clinical research. In practical terms, this means epidemiology projects should not be purely descriptive; they should be positioned to identify targets, risk factors, mechanisms, or populations in ways that directly support the design or rationale of clinical interventions for obesity prevention or treatment.

Funding is provided through the NIH R21 mechanism, which is specifically intended for exploratory and developmental projects. R21 awards are commonly used when investigators need support to generate early human data, demonstrate feasibility, refine protocols, or test a novel hypothesis before seeking larger scale funding. This mechanism is typically associated with a shorter project period and limited budgets compared with larger NIH clinical trial mechanisms. The announcement lists an award ceiling of 200,000, which generally reflects the smaller, pilot nature of R21-supported work. At the same time, the FOA emphasizes that the actual size and duration of awards may vary depending on the proposed research, and that NIH will ultimately determine the number and amount of awards based on the volume, quality, duration, and costs of applications received rather than committing to a fixed number of funded projects.

A notable feature of this opportunity is the wide range of eligible applicants. Beyond universities and medical centers, eligibility extends to state and local governments, tribal governments and tribal organizations, public and private institutions of higher education, nonprofit organizations (including those with and without 501(c)(3) status), for-profit entities (including but not limited to small businesses), independent school districts, public housing authorities, and other regional organizations. The eligibility section explicitly includes historically underrepresented or special-serving institutions and community-connected entities, such as Historically Black Colleges and Universities (HBCUs), Hispanic-serving institutions, Alaska Native and Native Hawaiian Serving Institutions, Tribally Controlled Colleges and Universities (TCCUs), faith-based or community-based organizations, and U.S. territories or possessions. It also allows non-U.S. entities (foreign organizations), signaling that NIH was open to strong projects regardless of geography when they align with the scientific goals and meet NIH requirements.

Administratively, this is categorized as a discretionary grant under NIH, with activity areas tied to health, food and nutrition, and related biomedical research domains. The catalog numbers associated with this opportunity reflect the multi-institute nature of the initiative, spanning complementary and integrative health research, cancer cause and prevention research, cardiovascular diseases research, and diabetes/digestive/kidney diseases extramural research. There is no cost sharing or matching requirement, which means applicants are not required to contribute their own funds as a condition of the award. The opportunity was posted on March 11, 2009, and had an original and final closing date of May 7, 2012, with an archive date of June 7, 2012, indicating it is no longer active but remains available as a reference for the program’s objectives and structure.

Overall, PA 09 124 was built to encourage creative, early stage clinical obesity research that could quickly produce actionable insights, whether by piloting an intervention, working out the practical and scientific details needed for a later large trial, or using targeted epidemiologic work to set up the next translational step. The participating NIH institutes and offices underline that obesity is viewed as a cross-cutting health issue connected to cardiometabolic disease, cancer risk and prevention, dietary supplement considerations, and integrative health approaches, and the R21 format is meant to lower the barrier for testing new ideas that could lead to more definitive prevention and treatment strategies.

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