Limited Competition: Small Grant Program for NHLBI K01/K08/K23/K25 Recipients (R03 Clinical Trial Optional)
Grant Opportunity Analysis
The National Heart, Lung, and Blood Institute, through NIH, is offering a limited competition R03 grant to help current and recently completed NHLBI K01, K08, K23, and K25 awardees advance research independence. The program supports small, two-year projects that can expand an existing K award line of research or branch into a new study, with the aim of generating preliminary data for a later R01-equivalent application. Projects are expected to use limited resources, applicants must maintain at least 40% protected research effort during the award period, and eligible work may include pilot or feasibility studies, proof-of-concept studies, secondary analyses, or methodological development; foreign organizations and foreign components are not eligible. Applications are due at 5:00 PM local time on dates between July 2026 and November 2028, and the NHLBI contact listed is NHLBI_R03@nih.gov.
Eligible Applicants
Only the following NHLBI K01, K08, K23, and K25 awardees are eligible to apply for this funding opportunity.Refer to Section III. Eligibility Information in the NOFO for additional information on eligibility.Foreign Organizations/International Collaborations:Non-domestic (non-U.S.) Entities (Foreign Organizations) are not eligible to apply.Non-domestic (non-U.S.) components of U.S. Organizations are not eligible to apply.Foreign components, as defined in the NIH Grants Policy Statement, are not allowed.