Pre-application: Opportunities for Collaborative Research at the NIH Clinical Center (X02 Clinical Trial Optional)

Funding Agency:
National Institutes of Health

The goal of this program is to support collaborative translational research projects aligned with NIH efforts to enhance the translation of basic biological discoveries into clinical applications that improve health. It encourages high quality science demonstrating the potential to result in understanding an important disease process or lead to new therapeutic interventions, diagnostics, or prevention strategies within the research interests and priorities of the participating NIH Institutes/Centers (ICs).

Specifically, the program seeks to broaden and strengthen patient-centric translational research collaborations between basic and clinical researchers both within and outside NIH to accelerate and enhance translational science by promoting partnerships between NIH intramural investigators (e.g., those conducting research within the labs and clinics of the NIH) and extramural investigators (e.g., those conducting research in labs outside the NIH), and by providing support for extramural investigators to take advantage of the unique research opportunities available at the NIH Clinical Center by conducting clinical research projects in collaboration with NIH intramural investigators.

In order to be eligible for this program, the application must include at least one intramural scientist as a co-Program Director/Principal Investigator (co-PD/PI) and at least some of the clinical research must be conducted at the NIH Clinical Center. Through this collaboration, external researchers may gain access to the NIH Clinical Center and leverage the diverse Clinical Center resources, expertise, and infrastructure available to test promising laboratory- and animal-based discoveries with potential for advancing disease diagnosis, treatment and prevention. The special environment of the Clinical Center can support studies that may not be readily supported elsewhere. This may include collaborations that propose targeted increases in new patients enrolled in protocols at the Clinical Center. For this initiative, patients must be seen at the NIH Clinical Center. Projects that take only minimal advantage of Clinical Center resources, such as projects only utilizing banked samples or data, will not be considered for funding.

This funding opportunity announcement (FOA) encourages X02 pre-applications for Opportunities for Collaborative Research at the NIH Clinical Center. The X02 pre-application is the recommended (not required) first step in the application process for the companion U01 FOA (PAR-21-343). Potential applicants should read both FOAs. Investigators whose X02 pre-applications are meritorious, can be accommodated by the resources of the NIH Clinical Center and the relevant intramural program, and align with the research missions of the participating NIH Institutes, will be notified of the opportunity to submit a U01 application under PAR-21-343 .

No awards will be made under this FOA.



  • Application Due Date(s): December 14, 2021; Dec. 13, 2022; Dec. 13, 2023
  • AIDS Application Due Date(s): December 14, 2021; Dec. 13, 2022; Dec. 13, 2023

PAR-21-342 Expiration Date: December 14, 2023

Agency Website

Amount Description

Awards through the companion U01 application (PAR-21-343) will be up to $500,000 direct costs per year, for a period of up to 5 years.

The scope of the proposed project should determine the project period. The maximum project period is 5 years for projects that include a planning year as part of the research plan. For projects that do not need a planning year, the maximum project period is 4 years.

Potential applicants are reminded to consider the project period limitation for the companion U01 application when developing their research plans for the X02 pre-application.

Funding Type





Environmental & Life Sciences
Medical - Basic Science
Medical - Clinical Science
Medical - Translational

External Deadline

December 13, 2023