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

Federal funding opportunity PAR-25-210 from National Institutes of Health (Department of Health and Human Services).

Apply on Grants.gov →Application closes June 2, 2027

Posted
October 31, 2024
Closes
June 2, 2027
Cost sharing
No
Instrument
Grant
Assistance listing
93.866, 93.313, 93.393, 93.213, 93.121
Category
Education, Health
Archives
July 8, 2027

Program funding history

Awards made under Assistance Listing 93.866 (one of 5 on this opportunity) across FY2025–FY2027, from public federal spending records.

FY2025 obligated
$3.9B
FY2026 obligated
$3.9B
FY2027 (to date) obligated
$0
Awards in window
10,710

Top recipients: Washington University, the, Regents of the University of Michigan, University of Southern California, The Trustees of Columbia University in the City of New York, Regents of the University of California, San Francisco, the

Source: USAspending.gov · refreshed October 2026 · Program page: awards, recipients and the opportunities under this listing →

Synopsis

The purpose of this notice of funding opportunity (NOFO) is to support highly innovative mechanistic research to accelerate precision probiotic interventions. Specifically, this NOFO solicits R33 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. This NOFO will support studies to assess the ability of the unique patterns of host biology (e.g., native microbiome, immune system, gender, diet, age, genetic background, lifestyle, and health history) that are correlated with probiotic usage to detect the improvement of probiotic responsiveness. Well-suited applications must offer rigorously designed mechanistic studies using relevant/innovative animal models or in human subjects. This NOFO is intended to support projects where potential host biological patterns that are correlated with probiotic usage have been identified, as demonstrated with supportive preliminary data, but require further mechanistic studies to test for their causality or predictability. Applicants pursuing early-stage research to identify host biological patterns that may affect probiotic health outcomes should consider the companion (R61/R33) NOFO PAR-AT-24-XXX (TEMP-25412).

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.

How to apply

Applications go through the official government listing. Grants Radar links you straight to the source — applying is free.

View on Grants.gov   Full announcement

Agency contact: National Institutes of Health · [email protected] · 301-402-2541

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