SUMMARYBeginning in FY 2011, NCI adopted a new approach to the selection of grant applications for funding that sets a zone within which nearly all applications are selected for funding. In both 2011 and 2012, that zone extended to the 7th percentile. Beyond that point, all applications are considered, resulting in a final success rate of 15% in 2011. The charts and table below summarize the overall funding patterns for R01s and R21s in various categories of investigators.
Funding Patterns for R01 applications:
Figure 1 summarizes the number of R01 applications received and grants funded at each percentile, among all investigators. As is evident, the number of grants funded decreased in direct proportion to the percentile ranking. Nevertheless, 48% of the grants funded had rankings greater than the 7th percentile.
NCI FY2011 Competing R01 Applications and Awards
Figure 1: All Investigators: Experienced, New and Early Stage
Figure 1 includes data from all categories of investigators: experienced investigators who have had NIH grants in the past, new investigators who previously have not had a substantial independent NIH award, and early stage investigators who are within 10 years of completing their training and have not had a previous grant. If applications from only experienced investigators are considered, the same pattern of funding success is observed (Figure 2).
Figure 2: Experienced Investigators
In striking contrast, if R01 applications only from new investigators (Figure 3) or only from early stage investigators (Figure 4) are considered, there is a much broader spread in the percentile rankings of applications, extending to higher percentiles, that were selected for funding. This distribution, across a wide range of scores, reflects NCI's commitment to ensuring that the overall success rate for new investigators approximates that for established investigators.
Figures 1-4: Excludes applications that did not receive a percentile ranking. When an amended application is considered in the same fiscal year as the original, only the one with the better ranking is counted.
Funding patterns for R21 grant applications:
The funding patterns for R21 grant applications differ markedly from those of the R01. This difference is explained by the fact that NCI receives a disproportionate number of applications relative to the number of R21 grants that can be funded (Table 1). Thus, the cut-off for funding of R21 grant applications is more stringent than that for R01 applications for all investigators (Figure 5-7). Thirty percent of the grants funded had rankings beyond the 7th percentile.
In contrast to the case with the R01 funding patterns, success rates for R21 funding of applications from new and early stage investigators are significantly lower than for established investigators (8% versus 14% success rates, respectively) (Table 1). The difference in success rates for R21 compared to R01 applications from new investigators is striking: 8% compared with 13%. This disparity results from the fact that R01, but not R21 applications, from new investigators are given preferential consideration.
Figures 5-7: Excludes applications that did not receive a percentile ranking. When an amended application is considered in the same fiscal year as the original, only the one with the better ranking is counted.
Table 1: Fiscal Year 2011 R01 and R21 All Investigators Success Rates
|Total Applications||Number with Percentiles of 25 or better||Number with Percentiles of 10 or better||Funded||Success Rate|
|Experienced Investigator - Total||3,005||837||396||468||16%|
|**Early Stage Investigator||545||143||37||91||17%|
Total applications include all new and competing renewals that received a percentile, those with just an impact score as well as triaged or not recommended for funding.
When an amended application is considered in the same fiscal year as the original, only the one with the better percentile is counted.
* Includes Early Stage Investigators
** Included in New Investigators
 A percentile is a score that ranks competing applications against others in the same study section in the past year. It is intended to allow a comparison of impact scores of applications across all study sections. The impact score is given by scientific reviewers based on the overall impact that the project is likely to have on the research field(s) involved.
 The success rate is the percentage of applications received that are funded. It is calculated by dividing the number of funded grants by the number of applications received. When an amended application is considered in the same fiscal year as the original, only the one with the better score is counted in the number of applications received.
 The NIH does not separate the categories, nor report the R21 grants in terms of experienced or new investigators. The NCI was able to apply the R01 rules to the R21 to extract, and generate the data that distinguishes the 2 groups in these graphs.