Breast Cancer, Cancer Research, JAMA, Weight Research / 13.05.2026
GLP-1 Medications Associated With Improved Survival and Lower Recurrence Risk in Breast Cancer Patients With Obesity or Diabetes in Observational Study
MedicalResearch.com Interview with:
[caption id="attachment_73639" align="alignleft" width="125"]
Dr. Fuemmeler[/caption]
Bernard F. Fuemmeler, PhD, MPH
Professor and Gordon D. Ginder, MD Chair in Cancer Research
Associate Director of Population Science, Massey Comprehensive Cancer Center
Director of Research, Family Medicine and Population Health
[caption id="attachment_73640" align="alignleft" width="125"]
Dr. Tatum[/caption]
Kristina L. Tatum, PsyD, MS
Instructor
Department of Social and Behavioral Sciences
School of Public Health
A large population-based analysis of more than 841,000 breast cancer patients across the United States examines whether GLP-1 receptor agonist use is associated with improved survival and lower recurrence risk — with findings that researchers describe as very promising.
MedicalResearch.com: What is the background for this study? What are the main findings? Response: Glucagon-like peptide-1 receptor agonists, or GLP-1RAs, have been used since 2005 and as the GLP1RAs treatments and delivery methods have improved, their use has markedly increased. Now it is estimated that nearly 1 in 8 US adults report ever using a GLP-1RA, which includes many people who are using them to treat obesity, diabetes, heart disease, and sleep apnea. There has been some preclinical data from mouse models to suggest that maybe GLP1RAs have an anticancer effect reducing the effects of obesity on tumor growth or progression. We were interested to understand to what extent GLP1RA use among cancer patients might be associated with cancer outcomes, like length of survival after cancer treatment or the chance of recurrence. In our large population-based study using an aggregate of de-identified electronic health record data from more than 841,000 patients with breast cancer across the US, we found that GLP-1 RAs use was associated with significantly improved survival and lower recurrence risk among patients with obesity or type 2 diabetes. Among patients with obesity, GLP-1 RAs use was associated with approximately 65% lower risk of death and a 56% lower risk of recurrence over 10 years compared with nonuse. We also observed substantially improved outcomes among patients with type 2 diabetes compared with insulin or metformin.
Dr. Fuemmeler[/caption]
Bernard F. Fuemmeler, PhD, MPH
Professor and Gordon D. Ginder, MD Chair in Cancer Research
Associate Director of Population Science, Massey Comprehensive Cancer Center
Director of Research, Family Medicine and Population Health
[caption id="attachment_73640" align="alignleft" width="125"]
Dr. Tatum[/caption]
Kristina L. Tatum, PsyD, MS
Instructor
Department of Social and Behavioral Sciences
School of Public Health
A large population-based analysis of more than 841,000 breast cancer patients across the United States examines whether GLP-1 receptor agonist use is associated with improved survival and lower recurrence risk — with findings that researchers describe as very promising.
MedicalResearch.com: What is the background for this study? What are the main findings? Response: Glucagon-like peptide-1 receptor agonists, or GLP-1RAs, have been used since 2005 and as the GLP1RAs treatments and delivery methods have improved, their use has markedly increased. Now it is estimated that nearly 1 in 8 US adults report ever using a GLP-1RA, which includes many people who are using them to treat obesity, diabetes, heart disease, and sleep apnea. There has been some preclinical data from mouse models to suggest that maybe GLP1RAs have an anticancer effect reducing the effects of obesity on tumor growth or progression. We were interested to understand to what extent GLP1RA use among cancer patients might be associated with cancer outcomes, like length of survival after cancer treatment or the chance of recurrence. In our large population-based study using an aggregate of de-identified electronic health record data from more than 841,000 patients with breast cancer across the US, we found that GLP-1 RAs use was associated with significantly improved survival and lower recurrence risk among patients with obesity or type 2 diabetes. Among patients with obesity, GLP-1 RAs use was associated with approximately 65% lower risk of death and a 56% lower risk of recurrence over 10 years compared with nonuse. We also observed substantially improved outcomes among patients with type 2 diabetes compared with insulin or metformin.
Photo by
Candida auris CDC Image[/caption]
MedicalResearch.com Interview with:
[caption id="attachment_72627" align="alignleft" width="200"]
Prof. Moo-Yong Rhee[/caption]
Professor Moo-Yong Rhee MD, PhD.
Cardiology,
Dr. Thorne[/caption]
Sally Thorne RN, PhD, FAAN, FCAHS, FCAN, CM
Professor Emeritus, School of Nursing
Co-Principal Investigator with :
[caption id="attachment_71969" align="alignleft" width="133"]
Dr. Pesut[/caption]
Dr. Barbara Pesut PhD, RN
Professor in the School of Nursing
Principal Research Chair in Palliative and End of Life Care
University of British Columbia
MedicalResearch.com: What is the background for this study?
Response: Medical assistance in dying (MAiD) was legalized in Canada in June of 2016 for Canadians who were facing a reasonably foreseeable natural death and met an explicit set of eligibility criteria as determined by qualified health care providers (physicians or nurse practitioners). In 2021, the legislation was extended to include the possibility of MAiD for persons who were suffering from a ‘grievous and irremediable’ medical condition but for whom natural death was not immediately foreseeable. As assisted dying represented a significant change in available options for Canadians with terminal or chronic conditions, requiring significant practice adaptations and including numerous legal, social, ethical, moral implications, the health research community has been working in consultation with clinicians, service providers and governments to generate knowledge that ensures safe, ethical and equitable practice in this regard.
Dr. Serena Guo[/caption]
Serena Jingchuan Guo, MD PhD
Assistant Professor
Department of Pharmaceutical Outcomes and Policy
University of Florida College of Pharmacy
[caption id="attachment_71231" align="alignleft" width="125"]
Dr. Hao Dai[/caption]
Hao Dai, PhD
Postdoctoral Fellow
Department of Biostatistics & Health Data Science
Indiana University School of Medicine
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Obesity and type 2 diabetes are both known to increase the risk of several cancers. Glucagon-like peptide 1 receptor agonists (GLP-1RAs) have become very popular for both glycemic control and weight loss, but their long-term effects on cancer risk are still unclear. Using a large real-world dataset, we emulated a target trial comparing more than 43,000 GLP-1RA users to matched non-users.
We found that GLP-1RA use was associated with a significantly lower overall cancer risk.
Dr. Jiyoung Ahn[/caption]
MedicalResearch.com Interview with:
Jiyoung Ahn, PhD
Dr. King[/caption]
Brett King, MD, PHD
Dr. King was named an American Academy of Dermatology (AAD) “Patient Care Hero”
for his work treating patients with severe alopecia areata
Dermatology Physicians of Connecticut
Fairfield, Connecticut
MedicalResearch.com: What is the background for this study? Would you briefly explain the condition of Alopecia Areata?
Response: Alopecia Areata (AA), an autoimmune form of hair loss, is common and its treatment has been revolutionized in the past ~3 years with approvals of 3 JAK inhibitors, bariticinib, ritlecitinib and deuruxolitinib. Prior to these approvals, off label treatments included the JAK inhibitors tofacitinib and ruxolitinib.
Prof. Lemesle[/caption]
Gilles Lemesle, M.D., Ph.D
Lille University Hospital, Lille, France
Dr. Ådén[/caption]
Ulrika Ådén PhD
Professor of Neonatology
Department of Women's and
Children's Health Karolinska
MedicalResearch.com: What is the background for this study?
Response: Children born preterm are at higher risk of cognitive impairment during childhood and later in life. However, an important unresolved question is whether these impairments primarily reflect genetic susceptibility or are driven by the biological consequences of being born too early. Cognitive development is known to have a strong heritable component (~70 %), and previous studies have attempted to disentangle genetic and environmental contributions, for example through sibling comparison designs. Although informative, such approaches have inherent limitations.
In this study, we aimed to investigate long-term cognitive outcomes across a range of gestational age groups including very preterm, moderately preterm, late preterm, and early term, compared to children born full term. Importantly, we accounted for genetic influences as well as a range of potential confounding factors, including prenatal risks and child-specific factors. This approach provides a more nuanced understanding of the extent to which cognitive outcomes associated with preterm birth reflect biological versus inherited risk.