Funder: National Institutes of Health

Due Dates: May 7, 2025 (AIDS - All types) | June 16, 2025 (New) | July 16, 2025 (Renewal/Resubmission/Revision) | September 7, 2025 (AIDS - All types) | October 16, 2025 (New) | November 16, 2025 (Renewal/Resubmission/Revision) | January 7, 2026 (AIDS - All types) | February 16, 2026 (New) | March 16, 2026 (Renewal/Resubmission/Revision) | May 7, 2026 (AIDS - All types) | May 24, 2026 (Final deadline)

Funding Amounts: Up to $275,000 direct costs over 2 years; max $200,000 in any single year.

Summary: Supports early-stage, exploratory basic experimental studies with humans to advance biomedical, behavioral, or clinical research.

Key Information: Only basic science studies involving human participants that meet both NIH clinical trial and basic research definitions are eligible.