Funder: National Institutes of Health
Due Dates: June 23, 2025 (New) | July 23, 2025 (Renewal/Resubmission/Revision) | October 20, 2025 (New) | November 20, 2025 (Renewal/Resubmission/Revision) | February 20, 2026 (New) | March 20, 2026 (Renewal/Resubmission/Revision) | June 22, 2026 (New) | July 22, 2026 (Renewal/Resubmission/Revision) | October 19, 2026 (New) | November 19, 2026 (Renewal/Resubmission/Revision)
Funding Amounts: No budget limit; project period up to 2 years (UG3) + up to 3 years (UH3), max 5 years total.
Summary: Supports milestone-driven, combined Phase 1/2a clinical trials of novel drugs (excluding amyloid/tau targets) for Alzheimer's disease and related dementias.
Key Information: Applications must bundle both UG3 (Phase 1) and UH3 (Phase 2a) activities and include go/no-go safety milestones; definitive efficacy (Phase 3) trials are not eligible.