China overtakes the United States in cancer research output
Nature Index
China overtakes the United States in cancer research output
Heating up
In 2024, China overtook the United States in cancer research output in the Nature Index for the first time, taking its place as the leading country in the field. With a 19% jump in Share that year, China’s improvement was much stronger than the United States’, whose output only increased by 5% between 2023 and 2024.
Preferred partner
The United States is the unequivocal leader in cancer-research collaboration, being involved in the top 10 partnerships in the field by bilateral collaboration score. The United States–China collaboration, seen here among other selected US cancer-research partnerships, lost significant ground in 2021, which it might struggle to regain if political tensions between the countries continue.
Leader of the pack
Harvard University, in Cambridge, Massachusetts, is in a class of its own in cancer-related research output in the Nature Index. With a Share of 1,169.18 for the period January 2019 to August 2024, Harvard is well clear of its closest rival in the field, the Chinese Academy of Sciences, in Beijing, with a Share of 768.09 for the period.
Pole position
China outperformed the United States in cancer-related output in 2024, but the United States leads in output for the period 2019–24. The United States dedicates more of its research in the Nature Index to cancer than any other country in the top 50, with 11% of its total Share in the Index for 2019–24 related to the topic. For China, that figure is 9%.
Team effort
Harvard University does the heavy lifting in the United States’ cancer research collaboration, forming 8 of the top 10 international partnerships by bilateral collaboration score in 2019–24. It dominates most of its partnerships, contributing far more than the other institution, as seen here with the leading 5 partnerships.

Source: Nature Index
Nature 640, S65 (2025)
doi: https://doi.org/10.1038/d41586-025-01154-4
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