Funder: National Institutes of Health
Due Dates: June 17, 2025 | October 17, 2025 | February 19, 2026 | June 15, 2026 | October 15, 2026 | February 17, 2027 | June 15, 2027 | October 15, 2027
Funding Amounts: No budget cap; up to 2 years for R61 phase and up to 3 years for R33 phase (max 5 years total); budgets must reflect actual project needs.
Summary: Supports pilot clinical trials to develop and test novel psychosocial therapeutic or preventive interventions for mental disorders, emphasizing experimental therapeutics and target engagement.
Key Information: Clinical trial is required; both R61 and R33 phases must be proposed in a single application; foreign and domestic applicants eligible.