Pathway to Independence Award for Early-Stage Postdoctoral Researchers (K99/R00 – Independent Clinical Trial Not Allowed)
🏛 National Institutes of Health (HHS-NIH11)
✓ Free, no account · Source: Grants.gov · Last verified Jul 16, 2026
Can you apply?
This grant is for postdoctoral researchers who are early in their careers and seeking to establish research independence in fields supported by the National Cancer Institute (NCI). Applicants must hold a doctoral degree (MD, PhD, DO, DDS, DVM, or equivalent) and be within 5 years post-degree at the time of application. The K99/R00 award provides two phases: a mentored K99 phase (up to 3 years) focused on career development and research training, and an independent R00 research phase (up to 3 years). This mechanism explicitly does not support independent clinical trials, making it suited for basic science, translational, and clinical research (non-trial) in cancer biology and related areas. Applicants must secure a mentor and sponsoring institution, typically a research-intensive university or medical center.
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Program description
The purpose of the NCI Pathway to Independence Award for Early-Stage Postdoctoral Researchers (K99/R00) program is to increase and maintain a strong cohort of new and talented, NCI-supported, independent investigators. This program is designed for postdoctoral fellows with research and/or clinical doctoral degrees who do not require an extended period of mentored research training beyond their doctoral degrees. The objective of this award is to facilitate a timely transition of these fellows from their mentored, postdoctoral research positions to independent tenure-track (or equivalent) faculty positions. The program will provide independent NCI research support during this transition to help awardees to launch competitive, independent research careers. Researchers in the scientific areas of cancer control, cancer prevention and cancer data sciences are especially encouraged to work with their institutions to apply.
This Notice of Funding Opportunity (NOFO) is designed specifically for candidates proposing research that does not involve leading an independent clinical trial, a clinical trial feasibility study, or an ancillary clinical trial. Under this NOFO candidates are permitted to propose a research experience in a clinical trial led by a mentor or co-mentor. Those proposing a clinical trial or an ancillary clinical trial as lead investigator, should apply to the companion NOFOs (PAR-23-287 or PAR-23-288).
Who can apply
Eligible applicants
- 501(c)(3) Public Charity
- City / Municipal Government
- County Government
- Nonprofits
- Postdoctoral Researcher
- Private University
- Public Authority
- Public K-12 School
- Public University
- Researcher (independent)
- Small Business (SBA-defined)
- Special District
- State Government
- Tribal Nation
- Tribal Organization
How to apply
Application links
Required documents
- SF-424 (R&R) federal grant application form
- Project Narrative (Research Plan, typically 6–15 pages) describing K99 mentored research and R00 independent research plans
- Biographical Sketch (NIH format) for applicant and mentor(s)
- Budget and Budget Justification (for K99 and R00 phases separately)
- Mentor Letter of Support (describing mentoring approach, timeline, and institutional commitment)
- Institutional Endorsement Letter (from department chair or research administrator confirming resources and mentoring support)
- Letters of Support from collaborators (if applicable)
- Publication list and relevant reprints or manuscripts (to establish research record and potential)
- NIH Biosketches for all senior/key personnel involved in mentoring
- Facilities and Resources document describing available space, equipment, and administrative support
Program contact
- 👤 National Institutes of Health
- 📧 grantsinfo@nih.gov
- 📞 301-402-2541
Funding track record
Recent awards under CFDA 93.398 from the last 3 years — real organizations that won funding through this same program.
Top 10 Largest Recent Awards
-
$23,853,515
-
$22,820,040
-
$17,454,036
-
$15,407,472
-
$14,832,927
-
$14,410,208
-
$14,234,718
-
$14,219,981
-
$13,766,537
-
$13,734,930
Top States by Funding
- CA 14 awards $114.6M
- MA 10 awards $104.9M
- TX 9 awards $102.7M
- NY 9 awards $65.8M
- NC 6 awards $62.1M
Source: USAspending.gov — federal spending transparency. Data covers last 3 years.
Funding history
Annual funding for this program — Federal obligations (CFDA 93.398). How funding has trended year over year.
| 2024 | $228,173,992 | |
| 2025 | $213,201,522 | |
| 2026 est. | $135,455,000 |
FAQ
Who is eligible to apply for this K99/R00 award?
Postdoctoral researchers with a doctoral degree (MD, PhD, DO, DDS, DVM, or equivalent) who are within 5 years of earning that degree. You must be a U.S. citizen, national, or permanent resident, and you need a qualified mentor and institutional sponsorship.
Can I use this award to conduct an independent clinical trial?
No. The K99/R00 for NCI explicitly excludes independent clinical trials. You can conduct clinical research that is not a full independent trial, but large RCTs designed and led by you are not permitted under this mechanism.
What happens during the K99 and R00 phases?
The K99 phase (up to 3 years) is mentored research focused on developing your independence and establishing preliminary data. The R00 phase (up to 3 years, after you secure an independent position) transitions you to independent research leadership at a new institution.
How competitive is this award, and what are typical success rates?
K99/R00 awards are highly competitive. Success rates typically range from 15–25%, so a strong research proposal, outstanding mentor and institutional support, and clear evidence of research potential are essential.
What is the typical funding level for K99/R00 awards?
Typical budgets range from $150,000 to $300,000 annually (combined direct and indirect costs), though exact amounts depend on scientific need. Budget should support salary, research, and professional development activities.
💡 Tips for applicants
- Build a compelling mentor relationship: Your mentor must demonstrate strong commitment and expertise in your field. Reviewers heavily weight mentor-mentee fit, so invest time in defining collaborative roles and development milestones.
- Establish preliminary data in the K99 phase: Use the mentored phase to generate strong, publishable preliminary findings that demonstrate scientific merit and your potential for independence. This strengthens your R00 transition competitiveness.
- Plan a clear transition to independence: Outline specific steps you will take during K99 (e.g., publishing first-author papers, gaining grant-writing experience, teaching) to prepare for independent R00 research at a new institution.
- Align your research with NCI strategic priorities: Review NCI's current focus areas (e.g., cancer immunotherapy, precision oncology, health disparities). Your research should address a recognized cancer research gap and leverage your unique expertise.
- Secure institutional commitment and resources: Your sponsoring institution must commit to protected research time, equipment, and administrative support. Letters of support from department leadership and your mentor strengthen your application credibility.
⚠️ Common mistakes
Common reasons K99/R00 applications are rejected include: (1) Lack of clear research independence plan—reviewers expect evidence that you will transition from mentee to independent investigator, not simply continue your mentor's research. (2) Weak or unconvincing preliminary data—you must demonstrate scientific feasibility and your own intellectual contribution; mentors' prior work alone is insufficient. (3) Proposing clinical trials as the primary research approach—this mechanism excludes independent trial design, so applicants must emphasize non-trial research methodologies or observational studies aligned with their mentoring phase goals.
Similar grants
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- OPEN NCI Pathway to Independence Award (K99/R00 Clinical Trial Required) — National Institutes of Health
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