Well Told Grants

Grants / Department of Health and Human Services / National Institutes of Health

NHLBI Clinical Trial Pilot Studies (R34 Clinical Trial Optional)

Open Closes March 16, 2027 (136 days left) Opportunity PAR-25-032

National Institutes of Health is offering grants to nonprofits, colleges and universities, state and local governments, tribes, small businesses and businesses. Applications close on March 16, 2027.

From the official notice on Grants.gov, last changed October 20, 2026. Checked October 31, 2026.

Key dates

PostedDecember 18, 2024
DeadlineMarch 16, 2027
Archived by Grants.govApril 15, 2027

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Who can apply

This opportunity is open to nonprofits, colleges and universities, state and local governments, tribes, small businesses and businesses.

Other Eligible Applicants include the following: Alaska Native and Native Hawaiian Serving Institutions; Asian American Native American Pacific Islander Serving Institutions (AANAPISISs); Eligible Agencies of the Federal Government; Faith-based or Community-based Organizations; Hispanic-serving Institutions; Historically Black Colleges and Universities (HBCUs); Indian/Native American Tribal Governments (Other than Federally Recognized); Non-domestic (non-U.S.) Entities (Foreign Organizations); Regional Organizations; Tribally Controlled Colleges and Universities (TCCUs) ; U.S. Territory or Possession; Non-domestic (non-U.S.) Entities (Foreign Organizations) are not 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.

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Is this a realistic fit?

What the grant funds

This Notice of Funding Opportunity Announcement (NOFO) intends to supports studies that are both necessary and sufficient to inform the planning of a Phase II-IV clinical trial within NHLBI's mission. The NHLBI expects that applications to this NOFO will describe the planned clinical trial and in so doing demonstrate that the proposed (R34) research is scientifically necessary to design or plan the subsequent trial. Furthermore, this NOFO will support research projects that are designed to provide results that will be sufficient to inform the future trial without further studies. The planned Phase II, III, or IV trial must be primarily intended to test the efficacy, safety, clinical management, or implementation of intervention(s) in the prevention and/or treatment of heart, lung, blood, and sleep disorders. In contrast to the study start up or preparation phase of NHLBI funding opportunities for clinical trials (as described at https://www.nhlbi.nih.gov/grants-and-training/funding-opportunities-and-contacts/clinical-trials-optimization), the R34 mechanism is intended to provide new information that answers a scientific or operational question(s) which may be pragmatic in nature and, therefore, informs the final development of a Phase II-IV clinical trial. Regardless of the results of the R34, support of the proposed future clinical trial will require a new application.

Category: Health.

How to apply

  1. Read the full notice and attachments on Grants.gov and the agency's announcement. The notice is the official source for deadlines and requirements.
  2. Make sure your organization has an active SAM.gov registration and Unique Entity ID; registration can take several weeks.
  3. Register on Grants.gov and submit through Workspace before the deadline and time given in the notice. Our application guide walks through each step.

Questions go to National Institutes of Health, grantsinfo@nih.gov, 301-402-2541.

Open the official notice

Questions people ask

Who can apply for NHLBI Clinical Trial Pilot Studies (R34 Clinical Trial Optional)?

National Institutes of Health accepts applications from nonprofits, colleges and universities, state and local governments, tribes, small businesses and businesses. The notice adds further conditions, so read its eligibility section.

What is the deadline for NHLBI Clinical Trial Pilot Studies (R34 Clinical Trial Optional)?

Closes March 16, 2027 (136 days left). Confirm the date and time in the official notice on Grants.gov.

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