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

Exploratory Clinical Neuroscience Research on Substance Use Disorders (R61/R33 Clinical Trial Optional)

Open Closes June 16, 2028 (594 days left) Opportunity PAR-27-053

National Institutes of Health is offering grants to nonprofits, colleges and universities, state and local governments, tribes, small businesses and businesses. Applications close on June 16, 2028.

From the official notice on Grants.gov, last changed August 31, 2026. Checked October 31, 2026.

Key dates

PostedAugust 31, 2026
DeadlineJune 16, 2028
Archived by Grants.govAugust 15, 2028

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Who can apply

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

Refer to Section III. Eligibility Information in the NOFO for additional information on eligibility. Foreign Organizations/International CollaborationsNon-domestic (non-U.S.) Entities (Foreign Organizations) are eligible to apply. Non-domestic (non-U.S.) components of U.S. Organizations are eligible to apply. Foreign components, as defined in the NIH Grants Policy Statement, are allowed.NIH will no longer issue awards (i.e., new, renewal, or non-competing continuation) to domestic or foreign entities that involve foreign subawards/subcontracts. All NIH-funded research involving foreign subawards/subcontracts must be submitted in response to a NOFO that is specifically designated for funded international collaborations. See NIH Grants Policy Statement 16.8 Collaborative International Research Awards. Applications involving foreign subawards/subcontracts submitted in response to this NOFO will be deemed noncompliant and will not be considered for funding. This policy applies to all monetary international collaborations resulting in foreign subawards/subcontracts, however, it does not preclude unfunded international collaborations or foreign components, funding for foreign consultants, or procurement of unique equipment or supplies from foreign vendors.

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Is this a realistic fit?

What the grant funds

This notice of funding opportunity (NOFO) uses a R61/R33 Phased Innovation Award activity code to support clinical research applications that are exploratory and developmental in nature and focus on understanding the neurobiological mechanisms underlying substance use disorders (SUD), including fundamental circuitry and behavior relevant to substance use. For projects not requiring a phased research approach, applicants are encouraged to apply under a different funding activity code (e.g., PA-25-305 "Research Project Grant (Parent R01 Clinical Trial Required)" or its subsequent reissue).

Category: Health.

How to apply

  1. Read the full notice and attachments on Grants.gov. The notice is the official source for deadlines and requirements.
  2. Make sure your organization has an active SAM.gov registration and Unique Entity ID; registration can take several weeks.
  3. Register on Grants.gov and submit through Workspace before the deadline and time given in the notice. Our application guide walks through each step.

Questions go to National Institutes of Health, NIDA_DNB_BCNB_r61@nih.gov, 301-402-2541.

Open the official notice

Questions people ask

Who can apply for Exploratory Clinical Neuroscience Research on Substance Use Disorders (R61/R33 Clinical Trial Optional)?

National Institutes of Health accepts 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 Exploratory Clinical Neuroscience Research on Substance Use Disorders (R61/R33 Clinical Trial Optional)?

Closes June 16, 2028 (594 days left). Confirm the date and time in the official notice on Grants.gov.

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