Mechanism for Time-Sensitive Substance Use Research (R21 Clinical Trial Optional) | PAR 24 298

Opportunity Information: Apply for PAR 24 298

The NIH funding opportunity titled "Mechanism for Time-Sensitive Substance Use Research (R21 Clinical Trial Optional)" (PAR-24-298) is designed to support fast-moving, short-term pilot, feasibility, or exploratory studies that have to happen quickly in order to be scientifically useful. The central idea is that certain substance use problems, policy shifts, service system changes, or public safety developments can unfold so rapidly that a traditional grant timeline would miss the window to collect critical data. Because of that, applicants need to make a strong case that the question they want to answer is genuinely time-sensitive and that rapid review and funding are necessary to capture information that will soon be unavailable or substantially altered by events such as imminent policy implementation or sudden changes in drug supply and harms.

The NOFO focuses on substance use epidemiology and health services research, and it highlights five priority areas where urgent research opportunities often arise. First, it supports studies responding to sudden and severe emerging drug issues, such as an abrupt spike in overdoses or a rapid increase in use of a specific substance like opioids or synthetic cannabinoids within a particular community. Second, it supports research on emerging marijuana trends, especially as marijuana laws and regulations continue to shift across jurisdictions and create new, time-bound natural experiments. Third, it invites proposals addressing unexpected and time-sensitive prescription drug misuse research opportunities, for example when a state, county, or local government launches a new initiative, implements a new rule, or changes monitoring and prescribing practices in a way that creates a short-lived chance to evaluate impact. Fourth, it supports studies tied to unexpected and time-sensitive medical system issues, including opportunities to understand how addiction prevention, treatment, harm reduction, and recovery services are delivered as the health care system evolves (such as changes in coverage, care delivery models, or integration of services). Fifth, it includes time-sensitive criminal or juvenile justice-related opportunities, particularly when new system-level or structural changes affect drug use patterns, access to evidence-based care, diversion programs, reentry services, or the availability of health care services for justice-involved populations.

This award uses the NIH R21 mechanism, which generally aligns with early-stage, exploratory work intended to generate foundational evidence, test methods, or establish feasibility rather than to fund large, multi-year definitive trials. The listing notes "Clinical Trial Optional," meaning clinical trials are not required, but may be proposed if they are appropriate for the rapid, exploratory aims and fit NIH requirements. The opportunity falls under the NIH assistance listing CFDA number 93.279, and it is categorized as a discretionary grant within education and health-related funding activities. The posted original closing date is 2027-09-09.

Eligibility is broad and includes many types of U.S.-based organizations and government entities. Eligible applicants include state, county, city or township governments; special district governments; independent school districts; public and state-controlled institutions of higher education; private institutions of higher education; federally recognized Native American tribal governments; tribal organizations other than federally recognized tribal governments; public housing authorities and Indian housing authorities; nonprofit organizations both with and without 501(c)(3) status (as long as they are not institutions of higher education in the categories specified); for-profit organizations other than small businesses; and small businesses. The NOFO also explicitly calls out additional eligible applicant types such as Historically Black Colleges and Universities (HBCUs), Hispanic-serving Institutions, Tribally Controlled Colleges and Universities (TCCUs), Alaska Native and Native Hawaiian Serving Institutions, and Asian American Native American Pacific Islander Serving Institutions (AANAPISISs), as well as faith-based or community-based organizations, eligible federal agencies, regional organizations, and U.S. territories or possessions. At the same time, it clearly restricts non-U.S. participation: non-domestic (non-U.S.) entities are not eligible to apply, non-domestic components of U.S. organizations are not eligible, and foreign components as defined by the NIH Grants Policy Statement are not allowed.

In practical terms, the program is aimed at applicants who can move quickly, leverage real-time or near-real-time data sources, and execute a focused study during a narrow window when conditions are changing. Competitive proposals will typically define a specific urgent event or impending change, explain why waiting for standard review would undermine the research, and describe an efficient, feasible plan to collect and analyze data in time to inform public health response, service delivery decisions, or policy implementation related to substance use and associated health outcomes.

• The National Institutes of Health in the education, health sector is offering a public funding opportunity titled "Mechanism for Time-Sensitive Substance Use Research (R21 Clinical Trial Optional)" and is now available to receive applicants.
• Interested and eligible applicants and submit their applications by referencing the CFDA number(s): 93.279.
• This funding opportunity was created on 2024-09-20.
• Applicants must submit their applications by 2027-09-09.
• 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.

Apply for PAR 24 298

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