What this program funds
The K23 is the mentored career-development award for clinicians whose research runs through direct interaction with patients: clinical trials, human physiology studies, patient-centered outcomes, behavioral interventions, and similar work. Like its sibling the K08, it provides several years of salary support and research costs so an early-career clinician can protect most of their time for research training on the path to independence — the difference is that here the human subject is the scientific method.
Eligibility in plain English
- You hold a clinical doctorate (MD, DO, DDS/DMD, DVM, PharmD, or equivalent) and have completed, or are completing, clinical training.
- You must be a U.S. citizen or permanent resident.
- Your project is patient-oriented research — research conducted with human subjects where you interact directly with them. Bench or purely records-based work points to the K08 instead.
- You commit typically 75% of professional effort to research and career development, with some institutes allowing a lower minimum for certain procedure-heavy specialties — check the announcement.
- Confirm specifics with your sponsored-programs office and the current funding opportunity announcement.
What you'll need to submit
- Specific Aims (1 page).
- The combined candidate and research sections (12 pages total): Candidate's Background; Career Goals and Objectives; Career Development / Training Activities; and Research Strategy.
- The PHS Human Subjects and Clinical Trials Information form — usually substantial for a K23, including recruitment, protections, and (if the study qualifies as a clinical trial) design details.
- Mentor, co-mentor, and advisory statements; K23 committees typically include methodological expertise such as biostatistics.
- Institutional commitment letter guaranteeing protected time.
- Reference letters (typically 3–5), submitted separately by referees.
- Biographical Sketches (via SciENcv), budget and justification, and a Data Management and Sharing Plan.
Tips for this mechanism
- Recruitment feasibility decides K23 reviews. Show the patient population exists at your site with numbers — clinic volumes, registry counts, a pilot's actual accrual rate — and a fallback plan. "We see many such patients" convinces no one.
- Put a methodologist on the mentoring team. The most common scientific weakness in K23s is analytic design; a named biostatistician or trials methodologist with committed effort answers it before it's asked.
- Right-size the clinical study to the mechanism. A K23 should carry a definitive training study, not an underpowered phase III. Pilot endpoints, mechanism, and feasibility outcomes are the honest scale.
Related programs
- NIH K08 (the laboratory/translational sibling)
- NIH K99/R00 (transition award; open to non-citizens)
- NIH K24 (mid-career patient-oriented mentoring award — your future mentor may hold one)
- NIH K12/KL2 institutional career-development programs