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◐ Forecasted · PAR-27-049

Ancillary Studies to Ongoing Clinical Projects (RP1 Clinical Trial Not Allowed)

National Institutes of Health  ·  HHS

CFDA Numbers

93.846, 93.866

Award Ceiling

Award Floor

Expected Awards

Close Date

Oct 15, 2026

Section I

How to Apply

View on grants_gov ↗

Program Contact


AncillaryStudies@nih.gov
Please contact via e-mail.

Section II

Eligibility

Other Eligible ApplicantsIndian/Native American Tribal Governments (Other than Federally Recognized);Eligible Agencies of the Federal Government;U.S. Territory or Possession;Faith-based or Community-based Organizations;Regional Organizations;Non-domestic (non-U.S.) Entities (Foreign Institutions).

Eligible Applicant Types

00, 01, 02, 04, 05, 06, 07, 08, 11, 12, 13, 20, 22, 23, 25

Section III

Description

This Notice of Funding Opportunity (NOFO) solicits applications that propose to conduct time-sensitive ancillary studies in conjunction with privately or publicly funded, active, ongoing clinical projects (parent projects). The parent project can be an interventional clinical trial, or a clinical study such as an observational study, or a disease-specific repository that will be actively collecting patient samples or clinical data. The parent project(s) should provide a cohort of well-characterized patients, infrastructure, data, and biological samples for the ancillary study. The objective of this NOFO is to provide a flexible mechanism to leverage currently funded resources and maximize the return on existing investments in parent projects. Successful ancillary studies will enhance the scientific content and value of the parent projects, improve the research community’s understanding of a disease or organ system and thus may identify novel targets for diagnosis, treatment, and prevention of disease.

Section IV

Key Dates

Posted
Aug 17, 2026
Closes
Oct 15, 2026