Single-Site Investigator-Initiated Clinical Trials (R61/R33 Clinical Trial Required)
NIH funds single-site investigator-initiated NHLBI-relevant clinical trials, including efficacy, comparative effectiveness, pragmatic, and dissemination/implementation trials, under a two-phase R61/R33 mechanism with milestones.
⚑ Clinical trial required · Single-site only · R61/R33 milestone-driven bi-phasic mechanism · Foreign organizations/components allowed, but foreign subawards/subcontracts are not allowed under this NOFO after 2025-05-01
Unit fits — one characterization, each unit's own rules
| Physical Sciences & Engineering (demo) | 70 strong | technical depth: substantial; funds basic research |
| IPPRA | 58 good | peripheral portfolio topic: public_health; signature methods: community engaged; social/behavioral work is substantial; funds basic research; biomedical core — IPPRA health lane is communication/crisis/policy (capped); clinical-trial/biomedical core — IPPRA angle is policy/community (capped) |
| Tom Love Innovation Hub | 15 none | deep-tech content; no commercialization signal |
Description
This Notice of Funding Opportunity (NOFO) supports applications to develop and conduct investigator-initiated single site clinical trials including efficacy, comparative effectiveness, pragmatic and/or dissemination and implementation science clinical trials. Trials using innovative designs such as platform trials, adaptive, and Bayesian designs are encouraged. These trials may include ones that test different therapeutic, behavioral, dissemination and implementation science clinical trials and/or prevention strategies. Trials for which this NOFO applies must be relevant to the research mission of the NHLBI and meet the NIH definition of a clinical trial (see NOT-OD-15-015). For additional information about the mission, strategic vision, and research priorities of the NHLBI, applicants are encouraged to consult the NHLBI website.This NOFO will utilize a bi-phasic, milestone-driven mechanism of award. The objective of the application is to present the scientific rationale for the clinical trial and a comprehensive scientific and operational plan that describes it. The application should address project management, participant recruitment and retention, performance milestones, scientific conduct of the trial, and dissemination of results. The multiple PD/PI model is strongly encouraged but not required. Applicants are encouraged to include a PD/PI with expertise in biostatistics, clinical trial design, and coordination. The application should also describe its approaches to increase community engagement from conceptual design of the intervention through implementation and sustainability, close gaps in health outcomes within the US population, and increase health for all.
Eligibility
Refer to Section III. Eligibility Information in the NOFO for additional information on eligibility.Foreign Organizations/International CollaborationsNon-domestic (non-U.S.) Entities (Foreign Organizations) are eligible to apply.Non-domestic (non-U.S.) components of U.S. Organizations are eligible to apply.Foreign components, as defined in the NIH Grants Policy Statement, are allowed.NIH will no longer issue awards (i.e., new, renewal, or non-competing continuation) to domestic or foreign entities that involve foreign subawards/subcontracts. All NIH-funded research involving foreign subawards/subcontracts must be submitted in response to a NOFO that is specifically designated for funded international collaborations. This new requirement was effective, May 1, 2025.Applications involving foreign subawards/subcontracts submitted in response to this NOFO will be deemed noncompliant and will not be considered for funding. This policy applies to all monetary international collaborations resulting in foreign subawards/subcontracts, however, it does not preclude unfunded international collaborations or foreign components, funding for foreign consultants, or procurement of unique equipment or supplies from foreign vendors.
Apply
View on Grants.gov → CONTACT: National Institutes of Health <NHLBIDCVSClinical@mail.nih.gov>
Proposal brief SEE AN EXAMPLE →
A one-page internal memo: fit assessment, submission requirements, document scaffold, and next steps dated back from the deadline — tailored to your project idea if you add one.
Proposal shell · National Institutes of Health conventions SEE AN NIH EXAMPLE →
Funder-faithful document skeletons — National Institutes of Health's document set with section headings, page limits, reviewer guidance, and writing prompts; add a project idea to get [DRAFT] starter bullets. Download as .md for Word or Overleaf.