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ACCEPTING APPLICATIONS · GRANT

Enhancing Mechanistic Research on Precision Probiotic Therapies (R61/R33 Clinical Trial Optional)

National Institutes of Health · Health

Accepting applications. The agency is taking applications now through Grants.gov.
Deadline
Jun 2, 2027 (221 days left)
Who can apply
Others
Award range
Not stated
Expected awards
Not stated
Total program funding
Not stated
Your own money required
No cost sharing or matching required
Opportunity number
PAR-25-211
Posted
Oct 31, 2024
Assistance listing
93.866

More on who can apply

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 Pos

What it funds

The purpose of this notice of funding opportunity (NOFO) is to support highly innovative mechanistic research to accelerate precision probiotic interventions using a milestone-driven, biphasic award mechanism, R61/R33 Phased Innovation Award. Specifically, this NOFO solicits applications that will characterize person-specific features affecting probiotic responses to identify subgroups of probiotic responders and to enhance probiotic clinical outcomes. The ultimate goal of this NOFO is to identify, understand, and develop strategies to address barriers in precision probiotic therapies to account for the heterogenicity in humans that causes inconsistent probiotic responses. The first phase, funded by the R61, will providing for up to 2 years to identify unique host biological patterns (e.g., native microbiome, immune system, gender, diet, age, genetic background, lifestyle, and health history) that are correlated with heterogeneity of probiotic clinical effects using observational or secondary data analysis studies. The second phase, funded under the R33, will support studies to assess the ability of the unique patterns determined in the R61 phase to detect the improvement of probiotic responsiveness in rigorously designed mechanistic studies in relevant animal models or in human subjects. The combined R61/R33 should not exceed 5 years. Transition from the R61 to the R33 phase of the award will be administratively reviewed and will be determined based on successful completion of Transition Milestones that need to be clearly specified in the R61 phase application. Support for a single phased award that does not need the R61 Exploratory phase is available in the companion (R33) NOFO, PAR-AT-24-XXX (TEMP-25413).

Open the official notice on Grants.gov ↗

What to do next

  1. Open the official notice on Grants.gov and download the full announcement (the NOFO) and any attachments.
  2. Check you can apply: the eligible applicants above, and any detail in the notice's eligibility section.
  3. Register your organization in SAM.gov (choose "all awards") and create a Grants.gov account; allow several weeks the first time.
  4. Apply through Grants.gov exactly as the notice says, before Jun 2, 2027. Late applications are usually not accepted.

New to this? Applying for a federal grant, step by step · Register to apply · How to read the notice · Write the narrative · Build the budget · Agency contact: grantsinfo@nih.gov

From Grants.gov's official daily extract of Oct 25, 2026. The notice on Grants.gov and its attachments are what count. UX Contract is independent and not a government website.

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