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

National Institutes of Health · Opportunity PAR-25-211

Deadline June 2, 2027 266 days left
Award range Not stated
Total program funding
PostedOctober 31, 2024

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 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 not eligible to apply. Foreign components, as defined in the NIH Grants Policy Statement, are allowed.

About this opportunity

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).

Award history — this exact opportunity

NIH RePORTER lists 1 funded award under PAR-25-211 across 1 organization.

Awards by fiscal year 2026: 1
Award size (min / median / max) $546k / $546k / $546k

Total award obligations, not per-year amounts.

Recent awardees include: UNIVERSITY OF MICHIGAN AT ANN ARBOR.

Source: NIH RePORTER, matched on the exact opportunity number. NIH publishes success rates by institute and activity code — source.

Portfolio context — this listing covers more than this opportunity

This opportunity is funded under Assistance Listing 93.121 (“Oral Diseases and Disorders Research”), a broad federal program that made about 300 new awards per year over the last five fiscal years (median award $438k). Those figures describe that whole portfolio — not this specific solicitation, so we don't show them as if they were this opportunity's track record.

Applicant counts per solicitation are not published by any federal agency — no one can honestly sell you that number. NIH publishes success rates by institute and activity code — source.

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