A Scholarly Dialog on Recent Trends in National Institutes of Health's Funding for the Thyroid Field.

Background: The National Institutes of Health (NIH) is the major funding agency for biomedical research in the United States. To initiate a scholarly dialog about research and career development in the thyroid field, here we reviewed recent trends in NIH funding for this area. We used the Research Portfolio Online Reporting Tool database to estimate the level of NIH extramural support during 2013-2022 (number of active grants/year and $amount/year weighed by the total number of active grants/year and $amount/year), provided by the NIH to the thyroid field. We determined that in 2013, the NIH supported ∼140 grants/year, totaling almost $50 million/year, the majority in the form of R01 grants. Within the thyroid field, support was evenly split between thyroid cancer and thyroid hormone metabolism and action subareas. In the subsequent years (2014-2022), the total number of active grants peaked at 150/year ($55 million) in 2014 but progressively decreased to about 100 active grants/year ($30 million) in 2022. This trend occurred while the NIH budget increased from $29 to $46 billion/year. Globally, the number of thyroid-related publications increased by ∼70% during the study period, and the fractional contribution of several countries remained relatively stable, except for China which increased by ∼600%. Remarkably, the fraction of thyroid-related publications in the United States sponsored by the NIH decreased from 5.5% to 3.1% of the global number. Conclusion: These results constitute a very concerning scenario for research and education in the thyroid field. We appeal to the NIH, the professional societies in endocrinology and thyroidology, and all other relevant stakeholders such as thyroid-related professionals and thyroid patients to engage in further discussions to identify the root causes of this trend and implement an action plan to stabilize and eventually reverse this situation.