# Development and Application of PET and SPECT Imaging Ligands as Biomarkers for Drug Discovery and for Pathophysiological Studies of CNS Disorders (R01 Clinical Trial Optional)

Source: https://welltoldgrants.com/grants/par-25-036-development-and-application-of-pet-and-spect-imaging/  
Official notice: https://www.grants.gov/search-results-detail/357006

> National Institutes of Health offered grants to nonprofits, colleges and universities, state and local governments, tribes, small businesses and businesses. Applications closed on May 7, 2026.

| Field | Value |
|---|---|
| Opportunity number | PAR-25-036 |
| Agency | National Institutes of Health |
| Status | Forecast |
| Deadline | May 7, 2026 |
| Award ceiling | not stated |
| Award floor | not stated |
| Expected awards | not stated |
| Total funding | not stated |
| Cost sharing | not required |
| Assistance Listings | 93.242, 93.866 |

## 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/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 (see text field entitled "Additional Information on Eligibility" for clarification)

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.

## What the grant funds

This Notice of Funding Opportunity (NOFO) invites research grant applications that propose the development and evaluation of novel radioligands for positron emission tomography (PET) or single photon emission computed tomography (SPECT) imaging in human brain and the incorporation of, pilot or clinical feasibility evaluation from previously collected data in pre-clinical studies. These studies are expected to provide the requisite data needed to advance promising PET ligands for use in clinical research.

## Questions people ask

### Is PAR-25-036 still open?

No. It closed on May 7, 2026.

### Who can apply for Development and Application of PET and SPECT Imaging Ligands as Biomarkers for Drug Discovery and for Pathophysiological Studies of CNS Disorders (R01 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 Development and Application of PET and SPECT Imaging Ligands as Biomarkers for Drug Discovery and for Pathophysiological Studies of CNS Disorders (R01 Clinical Trial Optional)?

Closed May 7, 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-25-036?

NIH RePORTER lists 1 project funded under PAR-25-036 in fiscal 2026, at 1 institution.

### Who has won Mental Health Research Grants grants before?

The largest recipients over five fiscal years were Yale Univ, University of Pittsburgh - of the Commonwealth System of Higher Education, University of California, Los Angeles. The program made 6,785 awards worth $8.8 billion in that time.