GLP-1 medication can do much more than deal with weight problems and diabetes, with a rising listing of indications for situations together with coronary heart illness, obstructive sleep apnea, kidney illness, and superior liver illness.
Now, early-stage analysis has begun to counsel that GLP-1 medication like semaglutide (Wegovy, Ozempic) and tirzepatide (Zepbound, Mounjaro) could cut back the chance of sure forms of most cancers and assist stop most cancers from spreading after a prognosis.
Scientists are nonetheless working to grasp why GLP-1s may assist battle most cancers and the way a lot safety these medicines might probably present.
Why Analysis on GLP-1s and Most cancers Deserves Consideration
Actual-world research introduced at medical conferences this yr — together with one organized by ASCO (the American Society of Scientific Oncology) — have scientists feeling energized to additional examine the impression of GLP-1s on most cancers.
“There have been over a dozen abstracts on the ASCO Annual Assembly reporting GLP-1 profit in a number of cancers,” says Elizabeth McDonald, MD, PhD, a professor of radiology and breast most cancers researcher on the Hospital of the College of Pennsylvania in Philadelphia.
Whereas a few of these research checked out cancers recognized to have a connection to weight problems, others centered on cancers not classically related to extra weight, she says.
Taken collectively, the analysis “deserves the eye of most of the people as a result of it seems to point out protecting advantages not solely throughout a number of most cancers varieties but in addition throughout the complete most cancers continuum, from major prevention to stopping development after a most cancers prognosis to metastatic illness to lowering recurrence to growing survival,” Dr. McDonald says.
Treating Weight problems Could Decrease Some Most cancers Dangers
Extra physique weight is a recognized threat issue for a number of cancers, says Solar Kim, MD, an endocrinologist who makes a speciality of kind 2 diabetes, polyendocrine metabolic ovarian syndrome (PMOS), and weight problems at Stanford Well being in California.
- Colorectal most cancers
- Endometrial most cancers
- Postmenopausal breast most cancers
- Gallbladder most cancers
- Kidney most cancers
- Liver most cancers
- Esophageal most cancers
- Ovarian most cancers
- Pancreatic most cancers
- Abdomen most cancers
- A number of myeloma
- Meningioma
- Thyroid most cancers
Weight problems is linked to insulin resistance and power irritation, each of that are prone to drive elevated most cancers threat, says Dr. Kim.
Weight reduction can enhance insulin sensitivity and irritation, which makes it affordable to review whether or not GLP-1 medication might decrease most cancers threat, Kim says.
GLP-1s Could Decrease Most cancers Danger By way of Quite a few Pathways
A giant query is whether or not any GLP-1 anticancer profit comes primarily from weight reduction, or whether or not these medication may have results that transcend weight reduction itself.
A examine revealed in 2025 discovered decrease most cancers threat amongst individuals taking GLP-1s than amongst individuals who had weight-loss surgical procedure, although the surgical procedure group misplaced extra weight, suggesting the medicines fight most cancers by means of a number of pathways, in line with McDonald.
Researchers are specializing in just a few doable explanations:
Whereas this connection doesn’t show GLP-1 medication straight gradual tumor development, it helps the concept that GLP-1 signaling could also be concerned in how some cancers behave, says McDonald.
What the Newest Actual-World Research Present About GLP-1s and Lowered Most cancers Danger
Many of the present proof comes from massive real-world research. These research can present patterns in 1000’s of individuals, however they can’t show that GLP-1s induced the decrease most cancers threat.
Right here’s what the analysis has discovered:
Decrease Total Most cancers Charges in Adults With Weight problems or Obese A JAMA Oncology examine in contrast over 43,000 adults who used GLP-1 medication with an identical variety of matched adults who didn’t. Total most cancers charges had been decrease within the GLP-1 group: 13.6 versus 16.4 cancers per 1,000 person-years.
Decrease Quick-Time period Most cancers Charges in Adults With Weight problems however Not Diabetes An Annals of Oncology examine in contrast individuals with weight problems who began GLP-1s for weight administration with individuals who obtained weight-reduction plan or train counseling.
Much less Development to Stage 4 Illness in Some Folks Already Recognized With Most cancers A examine introduced on the 2026 ASCO assembly checked out individuals with stage 1, 2, or 3 most cancers who began both a GLP-1 drug or a DPP-4 inhibitor after prognosis.
It’s Nonetheless Too Early to Know if GLP-1s Can Sluggish or Stop Most cancers
The largest limitation on what we find out about GLP-1s and most cancers threat is that a lot of the present research are observational. In observational research, scientists analyze present knowledge, making an attempt to match topics and think about potential biases.
That type of analysis is much less conclusive than medical trials that comply with topics over time to create new and theoretically extra dependable knowledge that may do extra to show trigger and impact.
“There’ll all the time be unmeasured confounders in observational knowledge — this is the reason a medical trial is essential to point out causality,” says McDonald.
Kim can be cautious about drawing an excessive amount of from the present knowledge. “Most GLP-1 medical trials have been too quick to totally perceive most cancers growth, which may take years,” she says.
There may be additionally the chance that the present analysis could also be affected by bias, with research displaying advantages for GLP-1s and most cancers extra prone to be revealed, she provides.
Tried-and-True Most cancers Prevention Strategies Are Nonetheless Key
Extra research are underway to higher determine the impression of GLP-1s on most cancers. For now, scientists suggest sticking to tried-and-true methods of preserving most cancers threat as little as doable.
- Attending to and staying at a wholesome weight
- Consuming a nutritious diet
- Getting common bodily exercise
- Maintaining with common well being checkups
- Following really useful most cancers screening schedules
