Open · PAR-25-211 · CFDA 93.121;93.213;93.313;93.393;93.866 · Discretionary
Enhancing Mechanistic Research on Precision Probiotic Therapies (R61/R33 Clinical Trial Optional)
Federal grant opportunity posted by National Institutes of Health, cataloged on Grants.gov.
- Varies
- Award range
- Open
- Status
- 220d
- Days left
- -
- Expected awards
The verdict
Enhancing Mechanistic Research on Precision Probiotic Therapies (R61/R33 Clinical Trial Optional) is an open discretionary opportunity from National Institutes of Health, offering Varies by applicant. Applications close in 220 days. PlainGrants indexes 12,419 other opportunities from National Institutes of Health.
- Varies
- award range
- Open
- 220 days left
- 93.121;93.213;93.313;93.393;93.866
- CFDA program
- 12,419
- other opportunities from National Institutes of Health
Open desk with published close date
Enhancing Mechanistic Research on Precision P… remains open until June 2, 2027 (220 days out). Award range Varies by applicant without a cost-share requirement.
According to Grants.gov (extract vintage 2026-08-10), this record reflects the officially published listing. See methodology.
Deadline tracker
220 days left to apply
Posted Oct 31 → closes Jun 2, 2027
Instrument
Grant
Description
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).
Wide-open applicant board · 15 Grants.gov doors
Enhancing Mechanistic Research on Precision P… prints 15 distinct Grants.gov eligibility doors (State governments; County governments; City or township governments; Special district governments; +11 more). Filter fit before reading award size as demand — most applicant classes appear on the row. The extract does not mark applicant cost-sharing as required. Instrument: Grant. Funding-activity codes span Education · Health (ED;HL). This eligibility-code string dominates the National Institutes of Health book (9,741 peers, 78% of 12,420).
- Code 00
- State governments
- Code 01
- County governments
- Code 02
- City or township governments
- Code 04
- Special district governments
- Code 05
- Independent school districts
- Code 06
- Public / state-controlled institutions of higher education
- Code 07
- Federally recognized tribal governments
- Code 08
- Public / Indian housing authorities
- Code 11
- Native American tribal organizations (other than Federally recognized tribal governments)
- Code 12
- Nonprofits with 501(c)(3) status (other than IHEs)
- Code 13
- Nonprofits without 501(c)(3) status (other than IHEs)
- Code 20
- Private institutions of higher education
- Code 22
- For-profit organizations other than small businesses
- Code 23
- Small businesses
- Code 25
- Others (see official listing text)
Codes are Grants.gov eligibility category values from the extract vintage 2026-08-10. Confirm the full eligibility statement on the official listing or the Grants.gov eligibility reference.
Official Listing on Grants.gov
View full details, application forms, and submission instructions.
Agency Contact
NIH Grants Information grantsinfo@nih.gov
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What to do next
Enhancing Mechanistic Research on Precision P… is open with Varies by applicant awards and 220 days left on the clock.
- Submit through Grants.gov (PAR-25-211) - verify SAM.gov registration and the current NOFO before drafting. Official listing
- Look up CFDA 93.121;93.213;93.313;93.393;93.866 across all indexed listings before you commit to this opportunity alone. Eligibility finder
- National Institutes of Health lists 12,419 other indexed opportunities on PlainGrants. Agency catalog
Opportunity deadlines and eligibility change on Grants.gov; PlainGrants mirrors the extract and is not the submission system.
Disclaimer: This information is sourced from Grants.gov and SAM.gov and is for informational purposes only. Opportunity details, deadlines, and eligibility requirements change frequently. Always verify current information directly on Grants.gov before applying. PlainGrants is not affiliated with any federal agency.
Read our methodology - how this data is sourced, computed, and verified.
| Publisher | PlainGrants |
| Sources | the SAM.gov Assistance Listings and Grants.gov |