Maximizing the Scientific Value of the NHLBI Biologic Biospecimen Repository: Scientific Opportunities for Exploratory Research (R21)

Funding Agency:
National Institutes of Health

This Funding Opportunity Announcement (FOA) will support meritorious exploratory research relevant to the NHLBI mission ( using the existing biospecimen collections that are stored in the NHLBI Biologic Specimen Repository (Biorepository), thereby maximizing the scientific value of the stored collections and providing researchers with an opportunity to generate preliminary data for subsequent research proposals.


  • Letter of Intent Due Date(s): 30 days prior to the application due date
  • Application Due Date(s): June 21, 2022; Oct 19, 2022; June 20, 2023; Oct 19, 2023; June 20, 2024; Oct 21, 2024
  • AIDS Application Due Dates: Aug 9, 2022; Dec 7, 2022; Aug 9, 2023; Dec 7, 2023; Aug 9, 2024; Dec 10, 2024

​RFA-HL-23-018 Expiration Date December 11, 2024

Agency Website



Amount Description

Application budgets may not exceed $75,000 direct costs per year.

The scope of the proposed project should determine the project period. The maximum project period is 2 years.   

Funding Type





Medical - Basic Science
Medical - Clinical Science
Medical - Translational

External Deadline

June 20, 2024