Validation Studies of Analytical Methods for Dietary Supplement Constituents (Admin Supp - Clinical Trial Not Allowed) | PA 20 252

Opportunity Information: Apply for PA 20 252

The National Institutes of Health (NIH) funding opportunity titled "Validation Studies of Analytical Methods for Dietary Supplement Constituents (Admin Supp - Clinical Trial Not Allowed)" (PA 20 252) supports administrative supplements to existing NIH awards so researchers can complete and publish formal single-laboratory validation studies for analytical methods used in dietary supplement and natural product research. The core purpose is to improve rigor and reproducibility in the field by ensuring that key experimental materials and biological samples are accurately characterized using methods that are proven to be reliable, accurate, and fit-for-purpose. In practical terms, NIH is emphasizing that strong dietary supplement science depends on knowing exactly what is in the supplement, raw ingredient, reference material, or biological sample being studied, and being able to measure those constituents consistently.

This opportunity is specifically about validating analytical methods that identify and/or quantify dietary supplement-relevant ingredients or constituents, or their metabolites. That includes methods designed to measure active compounds or marker compounds that help define a botanical or supplement product, as well as methods that detect problematic substances such as adulterants, contaminants, or other potentially harmful compounds. The scope extends beyond supplement products themselves to cover experimental reagents and raw materials used in research, and clinical specimens like urine or plasma where metabolites or constituents may be measured. Examples of target analytes mentioned include phytochemicals and nutrients, along with potentially deleterious substances such as pesticides and mycotoxins, reflecting NIH interest in both efficacy-related components and safety-related contaminants.

A key constraint is that the method proposed for validation must already exist and must already be developed or used as part of the active parent grant's specific aims. In other words, this is not intended to fund early method development from scratch; it is meant to strengthen and formalize validation work around a method that is already in use under an ongoing NIH-supported project. The supplement mechanism is intended to cover the additional work required to perform a structured validation study and disseminate the results, typically through publication, so that other researchers can adopt methods that have been carefully vetted.

The announcement makes clear that only single-laboratory validation studies are supported. Multi-laboratory validation studies are explicitly not allowed under this FOA, which keeps the focus on formal validation within one laboratory setting rather than broader inter-lab collaborative validation efforts. The FOA also states that clinical trials are not allowed, meaning applicants should not propose prospective human interventional studies designed to evaluate health outcomes. Work involving analysis of clinical specimens can be appropriate when it supports method validation, but it must not cross into clinical trial territory.

Eligibility is broad across many U.S.-based organization types, including state, county, and local governments; public and private institutions of higher education; federally recognized tribal governments; tribal organizations; independent school districts; special district governments; public housing authorities; nonprofits with and without 501(c)(3) status; for-profit organizations (other than small businesses) and small businesses; and other domestic entities that meet NIH requirements. The FOA also highlights additional eligible applicant categories such as Historically Black Colleges and Universities (HBCUs), Hispanic-serving institutions, Tribally Controlled Colleges and Universities (TCCUs), Alaska Native and Native Hawaiian Serving Institutions, Asian American Native American Pacific Islander Serving Institutions (AANAPISIs), faith-based or community-based organizations, eligible federal agencies, regional organizations, and U.S. territories or possessions. At the same time, it draws a firm boundary around foreign involvement: non-U.S. entities (foreign organizations and foreign institutions) are not eligible to apply, non-U.S. components of U.S. organizations are not eligible, and foreign components as defined by NIH policy are not allowed.

Administratively, the opportunity is an NIH discretionary grant mechanism categorized under areas such as education, environment, food and nutrition, and health, with CFDA numbers listed as 93.113, 93.213, 93.321, 93.393, and 93.847. The original closing date provided in the source is April 15, 2022, and the opportunity was created on July 30, 2020. The overall message of the FOA is that NIH wants the community to have access to well-documented, rigorously validated analytical methods that can be trusted to measure dietary supplement constituents and metabolites accurately, thereby strengthening both basic and clinical research built on those measurements.

• The National Institutes of Health in the education, environment, food and nutrition, health sector is offering a public funding opportunity titled "Validation Studies of Analytical Methods for Dietary Supplement Constituents (Admin Supp - Clinical Trial Not Allowed)" and is now available to receive applicants.
• Interested and eligible applicants and submit their applications by referencing the CFDA number(s): 93.113, 93.213, 93.321, 93.393, 93.847.
• This funding opportunity was created on 2020-07-30.
• Applicants must submit their applications by 2022-04-15. (Agency may still review applications by suitable applicants for the remaining/unused allocated funding in 2026.)
• Eligible applicants include: 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/Indian housing authorities, Native American tribal organizations (other than Federally recognized tribal governments), Nonprofits having a 501 (c) (3) status with the IRS, other than institutions of higher education, Nonprofits that do not have a 501 (c) (3) status with the IRS, other than institutions of higher education, Private institutions of higher education, For-profit organizations other than small businesses, Small businesses, Others.

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