Well Told Grants

Grants / Department of Health and Human Services / National Institutes of Health

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

Closed Closed March 11, 2026 Opportunity PAR-24-298

This grant is closed. Who won this program's grants before is below, and similar open grants are at the end of the page. It is in our archive of National Institutes of Health notices from 2024.

National Institutes of Health offered grants to nonprofits, colleges and universities, state and local governments, tribes, small businesses and businesses. Applications closed on March 11, 2026.

From the official notice on Grants.gov, last changed March 11, 2026. Checked November 7, 2026.

About this NIH notice

Projects funded under PAR-24-298 were run by National Institute on Drug Abuse (NIDA, 1 project). Contact the program officer at the institute that fits your project before you apply; the notice lists them.

Application due dates, page limits and budget limits are set in the notice. Read PAR-24-298 in the NIH Guide.

Key dates

PostedSeptember 20, 2024
DeadlineMarch 11, 2026
Archived by Grants.govApril 10, 2026

Who can apply

This opportunity was open to nonprofits, colleges and universities, state and local governments, tribes, small businesses and businesses.

All 15 applicant types the notice lists

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 not allowed.

More grants for nonprofits, colleges and universities, state and local governments, tribes, small businesses, businesses.

Is this a realistic fit?

What the grant funds

This Notice of Funding Opportunity (NOFO) will support pilot, feasibility or exploratory research in 5 priority areas in substance use epidemiology and health services, including: 1) responses to sudden and severe emerging drug issues (e.g. the ability to look into a large and sudden spike in opioid or synthetic cannabinoid use/overdoses in a particular community); 2) responses to emerging marijuana trends and topics related to the shifting policy landscape; 3) responses to unexpected and time-sensitive prescription drug abuse research opportunities (e.g., new state or local efforts); 4) responses to unexpected and time-sensitive medical system issues (e.g. opportunities to understand addiction services in the evolving health care system); and 5) responses to unexpected and time-sensitive criminal or juvenile justice opportunities (e.g. new system and/or structural level changes) that relate to drug abuse and access and provision of health care service. It should be clear that the knowledge gained from the proposed study is time-sensitive and that an expedited rapid review and funding are required in order for the scientific question to be answered (i.e. an imminent policy change will not allow for standard review and funding timeline).

Category: Education, Health.

Funded under PAR-24-298 so far

NIH funded 1 project under PAR-24-298 in fiscal 2026, at 1 institution. The median yearly award was $233,250.

Recently funded projects
ProjectInstitutionFiscal yearAward
Community-based multi-method assessment of medetomidine and adulterated fentanyl withdrawal R21Johns Hopkins University2026$233,250

From NIH RePORTER, which lists each project once per fiscal year it was funded. Amounts are the yearly award.

Who has won Drug Use and Addiction Research Programs grants before

From fiscal 2021 to 2025, Drug Use and Addiction Research Programs (93.279) awarded $7.3 billion across 5,071 grant awards, an average of $1.4 million per award.

Largest recipients, fiscal 2021 to 2025
RecipientStateAwardsAmount
Yale UnivConnecticut150$305 million
The Johns Hopkins UniversityMaryland156$262 million
University of California, San DiegoCalifornia120$242 million
University of Pittsburgh - of the Commonwealth System of Higher EducationPennsylvania100$182 million
New York UniversityNew York62$173 million

Top states: California ($1.1 billion), New York ($773 million), Massachusetts ($613 million), Pennsylvania ($488 million), Maryland ($434 million).

Applying now

This notice no longer takes applications. Agencies often post the same opportunity again under a new number, so check the program's notices on Grants.gov and the similar open grants below.

The notice on Grants.gov keeps its full text and attachments, which is useful for planning a resubmission.

Questions people ask

Is PAR-24-298 still open?

No. It closed on March 11, 2026.

Who can apply for Mechanism for Time-Sensitive Substance Use Research (R21 Clinical Trial Optional)?

National Institutes of Health accepted applications from nonprofits, colleges and universities, state and local governments, tribes, small businesses and businesses. The notice adds further conditions, so read its eligibility section.

What is the deadline for Mechanism for Time-Sensitive Substance Use Research (R21 Clinical Trial Optional)?

Closed March 11, 2026. Applications are no longer accepted; the program's newer notices are on this page when there are any.

Who has been funded under PAR-24-298?

NIH RePORTER lists 1 project funded under PAR-24-298 in fiscal 2026, at 1 institution.

Who has won Drug Use and Addiction Research Programs grants before?

The largest recipients over five fiscal years were Yale Univ, The Johns Hopkins University, University of California, San Diego. The program made 5,071 awards worth $7.3 billion in that time.

Similar open grants