Evidence from multiple sources indicates that the Trump administration implemented significant cuts and delays to cancer research funding around and after January 2025, though some nuances exist regarding the nature and timing of these actions.
Trump admin cut cancer research funds after January 2025

Cancer experts alarmed over ‘gut-wrenching’ Trump plan to cut research spending by billions - Trump administration | The Guardian
Source: theguardian.com
Key Evidence
The Guardian reports a $2.7 billion planned cut to the National Cancer Institute in 2025.
theguardian.comtheguardian.comCancer experts alarmed over ‘gut-wrenching’ Trump plan to cut research spending...
Snopes confirms that NIH meetings to allocate funds were paused starting January 2025 despite court orders to resume funding.
snopes.comsnopes.comTrump didn't 'cancel cancer research' — but his directives paused NIH meetings...
STAT and Forbes document elimination or delay of funds for specific cancer research programs in early 2025.
statnews.comstatnews.comTrump budget cuts blindside cancer researchers and patients
forbes.comforbes.comTrump Administration Delays Funding To Cancer Research
What the Evidence Shows
Multiple reputable sources report that the Trump administration planned and executed substantial cuts to cancer research funding in 2025, including billions of dollars cut from the National Cancer Institute (NCI) and other research programs. The Guardian highlights a plan to cut nearly $2.7 billion from the NCI, alarming experts about potential increased mortality.theguardian.comtheguardian.comCancer experts alarmed over ‘gut-wrenching’ Trump plan to cut research spending...
theguardian.comtheguardian.com‘Impossible to rebuild’: NIH scientists say Trump cuts will imperil life-saving...
Several sources describe delays and freezes in funding disbursement rather than outright cancellations. For example, Snopes clarifies that while the administration did not 'cancel' cancer research, it paused NIH meetings responsible for allocating funds, causing delays despite court orders to resume funding.snopes.comsnopes.comTrump didn't 'cancel cancer research' — but his directives paused NIH meetings...
STAT and Forbes report that specific Congressionally Directed Medical Research Programs (CDMRP) lost funding, affecting research on certain cancers such as kidney cancer. This suggests targeted cuts within broader cancer research funding.statnews.comstatnews.comTrump budget cuts blindside cancer researchers and patients
forbes.comforbes.comTrump Administration Delays Funding To Cancer Research
Cancer Therapy Advisor provides anecdotal evidence from researchers grappling with these funding losses, indicating real-world impacts on ongoing projects.cancertherapyadvisor.comcancertherapyadvisor.comCancer Research Funding Cuts: Researchers Grapple With Losses
Wired frames the cuts as part of a broader attempt by the Trump administration to eliminate funding for studies it deemed politically undesirable, which included hundreds of millions of dollars for cancer research.wired.comwired.comHow Trump Killed Cancer Research
The timing is consistent with actions occurring after January 2025, including a temporary freeze starting late January 2025 and continuing delays through mid-2025.
In summary, while the claim that the Trump administration cut cancer research funds after January 2025 is supported by multiple independent sources, it is important to note that some actions involved delays and freezes rather than immediate cancellations. The cuts were substantial and had significant impacts on cancer research funding and projects.