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NIH Specific Aims Review Before Submission
A mock study section review of your Specific Aims or Research Strategy: what reviewers are likely to question, rehearsal scores and what to fix first.
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How to write an NIH Specific Aims page
An NIH Specific Aims page is a one-page summary of your proposed research: what you will do, why it matters and what will change if it works. A strong one names the problem and the gap in knowledge, and states a testable central hypothesis. It then sets out aims that test it, about three for a typical R01, and closes with the expected outcomes and their impact on the field.
Write it for a reader who is skimming. At least three assigned reviewers read your whole application closely, but NIH notes that many reviewers will be scanning it as they listen to the discussion1. If a scanning reviewer can say back your hypothesis and your aims, the page is doing its job.
Know how reviewers score it
For most research project grants due on or after January 25, 2025, including the R01, R21, R03 and R34, reviewers use NIH's simplified review framework2. It keeps the five familiar criteria but groups them into three factors. Two are scored on NIH's 9-point scale, where 1 is exceptional and 9 is poor, and the third is judged sufficient or not.
What each factor asks of your aims page
| Factor | What reviewers judge | What your aims page needs |
|---|---|---|
| Importance of the research (1 to 9) | Significance and innovation: whether the work fills an important gap, solves a critical problem or creates a valuable advance | A clear problem, the gap, and what the field gains if you succeed |
| Rigor and feasibility (1 to 9) | The approach: unbiased, reproducible data, a justified sample size, and work that can be done in the time proposed | A testable hypothesis, the evidence behind it, and aims sized to the award |
| Expertise and resources (sufficient or not) | Whether the team and the institution have what this work needs | A line on why your team and setting fit the project |
In many meetings, the assigned reviewers' preliminary scores decide which applications are discussed. Those the panel unanimously judges less competitive, typically the bottom half, are not discussed1 and get no final impact score.
Innovation now sits under importance, and NIH notes that a project that is not applying novel concepts or approaches may be of critical importance for the field2. Don't stretch for a novelty claim the work can't carry. Make the importance plain instead.
Build your Specific Aims page in five moves
NIH's form instructions ask you to state the goals of the research, summarize the expected outcomes and their impact, and list the specific objectives3. NIH's examples of an objective include testing a stated hypothesis, solving a specific problem and developing new technology. A simple way to fit all of that on one page is five moves, in this order.
Open with the problem
Two or three sentences on why it matters, in terms a reviewer outside your subfield will follow.
Name the gap
Say what isn't known and why that blocks progress. Everything below answers this sentence.
State the hypothesis
Give the objective of this application and its central hypothesis, with the preliminary data or prior work that makes it worth testing.
List the aims
For each aim, a short title, what it tests, the approach in a line and the result you expect.
Close with the payoff
End with the expected outcomes and what they will let the field do that it can't do now.
If you aren't sure the gap is real, check the literature first. A literature review synthesis of the papers you've read shows where studies agree, where they conflict and what no study has tested yet.
Write aims that stand on their own
Frame each aim as a goal with an expected outcome, not a list of experiments; the experiments belong in the Research Strategy. NIH also advises planning aims, when possible, so that an outcome consistent with the null hypothesis will still contribute to your field4 and let the project continue. In practice, that means avoiding chained aims, where one only works if an earlier one succeeds.
Size the aims to the award. NIH says the typical R01 applicant proposes about three related aims that can be completed during a four- or five-year grant4. Its writing tips add that everything in the budget must be reasonable and justified by the work you propose5, so build the grant budget justification from the aims.
Before. Aim 1: Characterize urinary biomarkers after cardiac surgery. Aim 2: Use the markers found in Aim 1 to predict kidney injury in a second cohort.
After. Aim 1: Test whether a rise in marker A within 6 hours of surgery predicts kidney injury at 48 hours, using 400 banked samples. Aim 2: Test whether a three-marker panel fixed in advance predicts kidney injury in 300 new patients, adding marker A only if Aim 1 supports it.
- A claim, not an activity. "Characterize" describes work. "Test whether" states something the data can support or refute.
- No chain. Aim 2 starts from a panel chosen in advance, so it still runs if Aim 1 finds nothing.
- A null result still counts. If marker A predicts nothing, that is a finding worth reporting, and Aim 2 goes ahead.
Follow the format, and write it yourself
The aims page has a one-page limit, and NIH enforces page limits strictly, counting all the text on the page. Its formatting rules call for 11-point type or larger, no more than 15 characters or 6 lines per inch, and margins of at least half an inch. They also say figures should not be included in the Specific Aims attachment6, so put them in the Research Strategy.
Then make sure the words are yours. NIH's notice NOT-OD-25-132 applies from the September 25, 2025 receipt date. Under it, NIH will not consider applications that are either substantially developed by AI, or contain sections substantially developed by AI, to be original ideas of applicants7. The same notice limits each principal investigator to six applications per calendar year.
Where AI fits, and where it doesn't
NIH says AI may suit limited aspects of preparing an application, and warns it can produce plagiarism or fabricated citations. Unsure whether a use is allowed? Ask your sponsored programs office or the program official named in the funding opportunity.
Test it like a study section
Draft the aims first and get them read early. NIH suggests having pre-readers review a first draft of your aims before you write the other sections. It also recommends feedback from both experts in your field and those who are less familiar with your science5. The second group matters: NIH notes that most of your reviewers won't be experts in your niche.
- The say-back test: give a colleague outside your subfield 5 minutes with the page, then ask them for your hypothesis and aims.
- A self-score: NIH suggests a self-review based on the peer review criteria5 in your funding opportunity, so rate both scored factors from 1 to 9 and say why.
- A failure drill: for each aim, ask what you'd learn, and what would still go ahead, if its hypothesis were wrong.
- A mock critique: write the two weaknesses a reviewer would list first, then fix them.
Before you upload your Specific Aims page
- The problem and the gap make sense to someone outside your subfield
- One central hypothesis or objective, stated plainly
- Each aim is a goal with an expected outcome, not a list of experiments
- No aim depends on another aim succeeding
- The last paragraph says what will change in the field
- One page, 11-point type or larger, half-inch margins, no figures or links
- Every sentence is yours, and every reference has been checked
Your aims also shape the data management and sharing plan, which describes the data the work will produce. For a reviewer's read of your draft, the tool at the top of this page critiques it factor by factor without writing it for you.
How it works
Paste your Specific Aims page or Research Strategy, and add the funding opportunity and any summary statement. River reads the draft the way a study section would, factor by factor, and writes its review into a document in your workspace. Each strength and weakness comes with the passage behind it, and the revisions are ranked by how much they're likely to help.
River critiques and suggests, but it doesn't write your aims. It never invents preliminary data, results or citations. Where an example phrasing would make a suggestion clearer, it gives one sentence for you to rewrite in your own words. When you've revised, paste the new version and River checks it against each weakness it found.
Paste your draft
Your Specific Aims page or Research Strategy, plus the funding opportunity and any summary statement.
River reviews it
It reads the draft factor by factor, as a study section would, and estimates its length against NIH page limits.
Get the critique
Strengths, weaknesses and the passages behind them, rehearsal scores, and revisions ranked by likely impact.
Revise and recheck
Rewrite in your own words, then paste the revision to see whether each weakness is fixed.
What you get
- A critique under NIH's three review factors: importance, rigor and feasibility, and expertise and resources
- Every strength and weakness tied to the exact passage in your draft that prompted it
- Rehearsal scores from 1 to 9 for the two scored factors, with the reasoning behind each
- The three changes most likely to improve your score, then every other revision ranked by impact
- Checks for chained aims, a vague hypothesis, missing rigor elements and likely overruns of NIH's page limits
- The questions reviewers are likely to raise when your application comes up for discussion
Common questions
What is an NIH Specific Aims page?
A Specific Aims page is a one-page attachment in the Research Plan of an NIH application. It states the goals of your project, the specific objectives that will meet them, and the expected outcomes and their impact on the field. NIH suggests drafting it early and asking mentors and colleagues to review it4, since their feedback can save extensive revisions later.
How many specific aims should an NIH grant have?
About three for a typical R01, according to NIH: related aims that can be completed during a four- or five-year grant. An R21 or R03 gets a 6-page Research Strategy instead of 12 pages, so plan fewer or smaller aims there. The count matters less than whether each aim can stand on its own.
Can I use AI to write an NIH grant application?
Not to write it for you. Under notice NOT-OD-25-132, NIH won't treat applications or sections substantially developed by AI as the applicant's original ideas7, though it says AI may help with limited aspects of preparation. If NIH detects AI-developed content after an award, it may refer the matter to the Office of Research Integrity. That is why this tool reviews your draft instead of writing it.
How do I get a mock review of my Specific Aims with River?
Use the box at the top of this page: paste your draft, then add the grant type, the funding opportunity and any summary statement you have. River critiques the draft factor by factor, and for a resubmission it checks each earlier criticism against your revision. The review opens in your free River workspace, where you can edit it or ask follow-up questions.
Are the scores in the mock review real?
No, they are a rehearsal. Real scores come from the study section: each eligible panelist scores a discussed application, and NIH multiplies their average by 10 to get the final impact score1. The rehearsal scores show which factor is weakest and why, so you know where to spend revision time. They don't predict a percentile or a funding decision.
Is my unpublished research kept private?
Your draft and the review stay in your own River workspace unless you share them. River sends your text to the AI model writing the review, and under River's privacy policy, neither River nor its AI providers use it to train models. If your institution limits AI use with unpublished work, follow that policy first.
Is the NIH Specific Aims review free?
Yes, it is free to start. Your mock review opens in a River workspace, where you can edit it, share it with co-investigators or ask River to change it. Paid plans add more AI use and access to the most advanced models.
Sources
National Institutes of Health. “First Level: Peer Review.” grants.nih.gov (opens in a new tab)
National Institutes of Health. “Simplified Peer Review Framework.” grants.nih.gov (opens in a new tab)
National Institutes of Health. “G.400 - PHS 398 Research Plan Form.” grants.nih.gov (opens in a new tab)
National Institutes of Health. “Advice on Application Sections.” grants.nih.gov (opens in a new tab)
National Institutes of Health. “General Grant Writing Tips.” grants.nih.gov (opens in a new tab)
National Institutes of Health. “Format Attachments.” grants.nih.gov (opens in a new tab)
National Institutes of Health. “NOT-OD-25-132: Supporting Fairness and Originality in NIH Research Applications.” grants.nih.gov (opens in a new tab)
Built by
Chandler Supple
Co-founder & CEO, River
Chandler has spent the last six years working in AI, building tools for millions of users and Fortune 100 companies. In 2025, he co-founded River to build a new kind of operating system for AI agents.