NIH Exploratory/Developmental Research Project Grant (Parent R21 Clinical Trial Required)
Last verified by NonDilute: 2026-04-29. Official notice and agency instructions control.
If you have a high-risk clinical trial idea with breakthrough potential, this NIH grant funds early-stage validation before larger trials.
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What this is
This R21 grant funds exploratory and developmental research at the conceptual stage, explicitly requiring at least one clinical trial component. It targets breakthrough ideas in biomedical, behavioral, or clinical research that align with NIH institute missions. Award amounts are not specified in the posting. The mechanism is designed for projects with considerable risk but significant potential, making it suitable for researchers testing novel approaches before larger-scale studies.
Who can apply
Broad eligibility across nonprofits (501(c)(3) and non-exempt), small businesses, for-profit organizations, universities, and government entities. Applicants must propose at least one clinical trial and align with at least one NIH Institute/Center's scientific mission; some centers restrict to mechanistic clinical trial studies only.
Eligible applicant types
- Native American tribal organizations (other than Federally recognized tribal governments)
- County governments
- Others (see text field entitled "Additional Information on Eligibility" for clarification)
- Public housing authorities/Indian housing authorities
- Private institutions of higher education
- Small businesses
- Independent school districts
- Nonprofits that do not have a 501(c)(3) status with the IRS, other than institutions of higher education
- For profit organizations other than small businesses
- State governments
- Public and State controlled institutions of higher education
- Nonprofits having a 501(c)(3) status with the IRS, other than institutions of higher education
- Native American tribal governments (Federally recognized)
- Special district governments
- City or township governments
Full description — from the agency
The NIH Exploratory/Developmental Grant supports exploratory and developmental research projects by providing support for the early and conceptual stages of these projects. These studies may involve considerable risk but may lead to a breakthrough in a particular area, or to the development of novel techniques, agents, methodologies, models, or applications that could have a major impact on a field of biomedical, behavioral, or clinical research. This Parent Notice of Funding Opportunity requires that at least 1 clinical trial be proposed. The proposed project must be related to the programmatic interests of one or more of the participating NIH Institutes and Centers (ICs) based on their scientific missions.Applicants should note that some ICs (see Related Notices) only accept applications proposing mechanistic studies that meet NIH's definition of a clinical trial through this funding opportunity announcement.
Topics: clinical trial research · exploratory biomedical research · NIH R21 grant · early-stage drug development · translational medicine · novel therapeutics · mechanistic studies
Public-source funding discovery only. This summary is generated from public agency data and may be incomplete or stale. NonDilute is not affiliated with, endorsed by, or acting on behalf of any government agency. Official notices and agency instructions control. NonDilute does not determine eligibility, provide grant-writing advice, or guarantee funding.