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Expanding the Target Landscape by Drugging the Undruggable (R21 Clinical Trial Not Allowed)

National Institutes of Health

The purpose of this Notice of Funding Opportunity (NOFO) is to solicit applications for exploratory and early-stage projects that focus on undruggable target classes within intractable human disease. Applicants will identify a human disease relevant undruggable target class and develop a method or a

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Funding
See official notice
Deadline
February 18, 2028
Status
OPEN
Category
Health & Medical
Opens
June 17, 2025
Directory link check
October 27, 2026

About this opportunity

The purpose of this Notice of Funding Opportunity (NOFO) is to solicit applications for exploratory and early-stage projects that focus on undruggable target classes within intractable human disease. Applicants will identify a human disease relevant undruggable target class and develop a method or agent that is selective for one or more targets within that target class. This NOFO is intended to jumpstart research that demonstrates innovative strategies to modulate targets that cannot be addressed by established therapeutic types, furthering the development of methods and/or agents selective for undruggable target classes.

Eligibility recorded

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); 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.

Applicant types

State governmentsCounty governmentsCity or township governmentsSpecial district governmentsIndependent school districtsPublic and state-controlled institutions of higher educationFederally recognized tribal governmentsPublic housing authorities and Indian housing authoritiesNative American tribal organizations501(c)(3) nonprofits other than higher-education institutionsNonprofits without 501(c)(3) status other than higher-education institutionsPrivate institutions of higher educationFor-profit organizations other than small businessesSmall businessesOther eligible applicants

Focus areas

Health

Recorded notice evidence

What to verify for Expanding the Target Landscape by Drugging the Undruggable (R21 Clinical Trial Not Allowed)

Applicant evidence

  • Applicant type: State governments
  • Applicant type: County governments
  • Applicant type: City or township governments
  • Applicant type: Special district governments
  • Applicant type: Independent school districts
  • Applicant type: Public and state-controlled institutions of higher education
  • Applicant type: Federally recognized tribal governments
  • Applicant type: Public housing authorities and Indian housing authorities

Opportunity boundaries

  • Recorded funding: See official notice
  • Recorded deadline: February 18, 2028; confirm the closing time.
  • Recorded focus: Health
Fields to verify directly: funding amount. A missing directory value does not remove a restriction.
Connect every eligibility claim, registration, attachment and deadline to the current notice. Open the specific official notice →

Application checklist

How to evaluate and apply for Expanding the Target Landscape by Drugging the Undruggable (R21 Clinical Trial Not Allowed)

Use this record for discovery, then connect every requirement and date to the current official notice and its amendments.

Recorded applicant fit

State governments, County governments, City or township governments, Special district governments, Independent school districts, Public and state-controlled institutions of higher education

Recorded geography

No structured geographic scope is recorded.

Recorded deadline

February 18, 2028 — confirm the closing time.

Eligibility summary: 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); 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.

Recorded focus: Health

1Confirm fitMatch entity type, location, project scope, exclusions and cost share.
2Read the noticeCollect amendments, budget rules, attachments and portal instructions.
3Plan timingRecord the funder’s time zone, registrations and internal review dates.
4Submit officiallyUse the funder’s route and save the submission confirmation.

Official sources

Directory link check: October 27, 2026. Always recheck the live notice before relying on it.

Open specific official notice →

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