Funder: National Institutes of Health

Due Dates: April 9, 2025 (New/Renewal/Resubmission/Revision) | August 6, 2025 (New/Renewal/Resubmission/Revision) | December 5, 2025 (New/Renewal/Resubmission/Revision)

Funding Amounts: Up to $400,000 direct costs over 2 years; no more than $250,000 in any single year; project period max 2 years.

Summary: Supports time-sensitive, innovative ancillary studies leveraging ongoing clinical projects in NIAMS mission areas; clinical trials are not allowed.

Key Information: Applications must justify time-sensitivity and include parent project approval; only non-clinical trial R21s are eligible.