# Exploratory/Developmental Research on Guillain Barre Syndrome (GBS) and Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) (R21 - Clinical Trial Not Allowed)

Source: https://welltoldgrants.com/grants/rfa-ns-25-025-exploratory-developmental-research-on-guillain-barre/  
Official notice: https://www.grants.gov/search-results-detail/357090

> National Institutes of Health offered grants of up to $3.0 million to nonprofits, colleges and universities, state and local governments, tribes, small businesses and businesses. It expected to make $3.0 million in total. Applications closed on November 14, 2025.

| Field | Value |
|---|---|
| Opportunity number | RFA-NS-25-025 |
| Agency | National Institutes of Health |
| Status | Forecast |
| Deadline | November 14, 2025 |
| Award ceiling | $3.0 million |
| Award floor | not stated |
| Expected awards | not stated |
| Total funding | $3.0 million |
| Cost sharing | not required |
| Assistance Listings | 93.853 |

## 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

The purpose of this initiative are to accelerate research leading to improved understanding and treatments for Guillain Barre Syndrome (GBS) and Chronic Inflammatory Demyelinating Polyneuropathy (CIDP). Responsive applications would propose studies of immunological mechanisms of nerve damage/dysfunction, contributing genetic/epigenetic factors, novel animal/cellular model systems, discovery of novel diagnostic or treatment response biomarkers, novel treatments or mechanisms of action of existing treatments.

## Questions people ask

### Is RFA-NS-25-025 still open?

No. It closed on November 14, 2025.

### Who can apply for Exploratory/Developmental Research on Guillain Barre Syndrome (GBS) and Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) (R21 - Clinical Trial Not Allowed)?

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 Exploratory/Developmental Research on Guillain Barre Syndrome (GBS) and Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) (R21 - Clinical Trial Not Allowed)?

Closed November 14, 2025. Applications are no longer accepted; the program's newer notices are on this page when there are any.

### How much funding is available?

Awards of up to $3.0 million each. About $3.0 million in total.

### Who has been funded under RFA-NS-25-025?

NIH RePORTER lists 6 projects funded under RFA-NS-25-025 in fiscal 2026, at 6 institutions. The most were at Ohio State University, University of South Carolina at Columbia, University of Texas HLTH Sci Ctr Houston.

### Who has won Extramural Research Programs in the Neurosciences and Neurological Disorders grants before?

The largest recipients over five fiscal years were The General Hospital Corporation, The Regents of the University of California, San Francisco, The Johns Hopkins University. The program made 8,641 awards worth $9.1 billion in that time.