NCCIH Natural Product Early Phase Clinical Trial Award (R33 Clinical Trial Required)

Updated Oct 20, 2026

Grant from the National Institutes of Health, open to small businesses. Closes Nov 13, 2026, 24 days left.

Opportunity number	PAR-25-270
Agency	National Institutes of Health
Funding type	Grant
Field	Health
Award ceiling	$1.1 million
Total program funding	$1.1 million
Cost sharing or matching	Not required
Assistance listing	93.213
Posted	Dec 2, 2024
Closes	Nov 13, 2026 (24 days left)
Add the deadline to	Google Calendar

Who can apply

State governments
County governments
City or township governments
Special district governments
Independent school districts
Public and state controlled institutions of higher education
Native American tribal governments (federally recognized)
Public housing authorities and Indian housing authorities
Native American tribal organizations (other than federally recognized tribal governments)
Nonprofits with 501(c)(3) status, other than institutions of higher education
Nonprofits without 501(c)(3) status, other than institutions of higher education
Private institutions of higher education
For-profit organizations other than small businesses
Small businesses
Others (see the eligibility notes)

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.

Description

This Notice of Funding Opportunity (NOFO) encourages applications for investigator-initiated, early phase, clinical trials of natural products (i.e., botanicals, dietary supplements, and probiotics), which have a strong scientific premise to justify further clinical testing. For this NOFO, natural products include promising nutritional regimens that standardize the amount of a specific naturally occurring nutritional compound (e.g., omega-3 fatty acids, anthocyanidins, or polyphenols) and have compelling preliminary evidence.

Under this NOFO, trials must be designed so that results, whether positive or negative, will provide information of high scientific utility and will support decisions about further development or testing of the natural product. This NOFO will provide up to 3 years support for studies to replicate the impact of the natural product on target engagement when used by humans, and assess whether there is an association between the degree of the impact on target engagement and functional or clinical outcomes in a patient population.

Applications are encouraged to design studies to determine how to optimize the impact of the natural product on target engagement by optimizing the delivery of the natural product through examination of different doses or formulations. In addition, applications can be designed to combine the natural product with another treatment approach that is known to engage the same target; or study the impact of the natural product in a target population that is more responsive.

Clinical trials submitted under this NOFO are expected to be hypothesis based, milestone-driven, and directly related to the research priorities and mission of NCCIH. This R33 funding mechanism is intended to accelerate the translation of emerging basic science findings about natural products into early-stage clinical testing to determine whether continued clinical research is warranted.

This NOFO will not support efficacy or effectiveness trials, nor will

Full announcement and how to apply on Grants.gov

Health grants right now

There are 350 open federal grants in health that small businesses may apply for; 33 close within 30 days. The median award ceiling is $500,000; this grant offers up to $1.1 million. The agencies offering the most are National Institutes of Health, Centers for Disease Control and Prevention - ERA and Centers for Disease Control - NCBDDD. Grants in this field stay open a median of 1031 days; this one is open for 711 days.

Who has won this program before

University Of Massachusetts Medical School $139.0 million · from Aug 22, 2018
Baylor College Of Medicine $47.8 million · from Sep 28, 2011
University Of California, LOS Angeles $36.7 million · from Sep 26, 2014
President And Fellows Of Harvard College $27.9 million · from Apr 19, 2023
Regents Of The University Of Minnesota $21.6 million · from Sep 23, 2022

The largest grants and cooperative agreements under assistance listing 93.213 with funding activity since Oct 1, 2025, from USAspending.gov. Amounts are each award's total.