Closed · PAR-25-037 · CFDA 93.242 · Discretionary

Cellular and Molecular Biology of Complex Brain Disorders (R21 Clinical Trial Not Allowed)

Federal grant opportunity posted by National Institutes of Health, cataloged on Grants.gov.

Varies
Award range
Closed
Status
September 7, 2026
Close date
-
Expected awards

The verdict

Cellular and Molecular Biology of Complex Brain Disorders (R21 Clinical Trial Not Allowed) is a closed discretionary listing from National Institutes of Health that offered Varies by applicant. Future funding cycles may be published under the same CFDA number. PlainGrants indexes 12,419 other opportunities from National Institutes of Health.

Varies
award range
Closed
application status
93.242
CFDA program
12,419
other opportunities from National Institutes of Health

Recently closed NOFO

This listing closed on September 7, 2026. Watch CFDA 93.242 (Mental Health Research Grants) for the next funding cycle. Historical award band was Varies by applicant.

According to Grants.gov (extract vintage 2026-08-10), this record reflects the officially published listing. See methodology.

Deadline tracker

Application window closed

Closed September 7, 2026

Posted Nov 18 Closes Sep 7

Instrument

Grant

Description

This Notice of Funding Opportunity (NOFO) encourages research on the biology of high confidence risk factors associated with complex brain disorders, with a focus on the intracellular, transcellular and circuit substrates of neural function. For the purposes of this NOFO, the term complex can refer to a multifactorial contribution to risk (e.g., polygenic and/or environmental) and/or highly distributed functional features of the brain disorder. Studies may be either hypothesis-generating (unbiased discovery) or hypothesis-testing in design and may utilize in vivo, in situ, or in vitro experimental paradigms, e.g., model organisms or human cell-based assays. While behavioral paradigms and outcome measures can be incorporated into the research design to facilitate the characterization of intracellular, transcellular and circuit mechanisms, these are neither required nor expected. Studies should not attempt to model disorders but instead should aim to elucidate the neurobiological impact of individual or combined risk factor(s), such as the affected molecular and cellular components and their relationships within defined biological process(es). This can include the fundamental biology of these factors, components and processes. The resulting paradigms, component pathways and biological processes should be disseminated with sufficient detail to enrich common and/or federated data resources (e.g., those contributing to the Gene Ontology, Synaptic Gene Ontology, FAIR Data Informatics) in order to bridge the gap between disease risk factors, biological mechanism and therapeutic target identification. The present NOFO (R21 activity code) can be used for applications to develop early stage, high-risk, exploratory approaches or establish proof-of-concept where there is little or no preliminary data. Applicants proposing to develop lines of inquiry where feasibility or proof of concept has been established should apply to the companion R01 NOFO (PAR-xx-xxx).

Wide-open applicant board · 15 Grants.gov doors

Cellular and Molecular Biology of Complex Bra… prints 15 distinct Grants.gov eligibility doors (State governments; County governments; City or township governments; Special district governments; +11 more). Filter fit before reading award size as demand — most applicant classes appear on the row. The extract does not mark applicant cost-sharing as required. Instrument: Grant. Funding-activity code maps to Health (HL). This eligibility-code string dominates the National Institutes of Health book (9,741 peers, 78% of 12,420).

Code 00
State governments
Code 01
County governments
Code 02
City or township governments
Code 04
Special district governments
Code 05
Independent school districts
Code 06
Public / state-controlled institutions of higher education
Code 07
Federally recognized tribal governments
Code 08
Public / Indian housing authorities
Code 11
Native American tribal organizations (other than Federally recognized tribal governments)
Code 12
Nonprofits with 501(c)(3) status (other than IHEs)
Code 13
Nonprofits without 501(c)(3) status (other than IHEs)
Code 20
Private institutions of higher education
Code 22
For-profit organizations other than small businesses
Code 23
Small businesses
Code 25
Others (see official listing text)

Codes are Grants.gov eligibility category values from the extract vintage 2026-08-10. Confirm the full eligibility statement on the official listing or the Grants.gov eligibility reference.

Official Listing on Grants.gov

View full details, application forms, and submission instructions.

View on Grants.gov

Agency Contact

NIH Grants Information grantsinfo@nih.gov

What to do next

Cellular and Molecular Biology of Complex Bra… is closed; use the parent program and agency catalog for the next funding cycle.

  • Parent CFDA 93.242 may publish future NOFOs under the same assistance listing. Open program
  • Mental Health Research Grants indexes 185 Grants.gov listings in this extract. Program profile
  • National Institutes of Health lists 12,419 other indexed opportunities on PlainGrants. Agency catalog

Opportunity deadlines and eligibility change on Grants.gov; PlainGrants mirrors the extract and is not the submission system.

Disclaimer: This information is sourced from Grants.gov and SAM.gov and is for informational purposes only. Opportunity details, deadlines, and eligibility requirements change frequently. Always verify current information directly on Grants.gov before applying. PlainGrants is not affiliated with any federal agency.

Data sourced from the SAM.gov Assistance Listings and Grants.gov. See our methodology for details. Retrieved and formatted by PlainGrants