Voices from the Patient Community

People living with obesity and related conditions often face challenges beyond weight management, including comorbidities, stigma, and bias.

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Science Rooted in Biology

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Patient-Guided Clinical Development

Understanding Obesity

Obesity is a complex biological disease that increases the risk of many other serious diseases and conditions, including Type 2 diabetes, heart failure, kidney disease, sleep apnea, atherosclerotic cardiovascular disease and metabolic dysfunction-associated steatohepatitis.1,2 In 2022, 890 million adults (18 years and older) globally were living with obesity, and 2.5 billion adults were living with overweight.3

Obesity is linked to a marked reduction in quality of life and an array of serious medical complications and conditions.3 Despite the breadth of the disease, the formal recognition of obesity as a chronic disease by the American Medical Association (2013) and the European Health Commission (2021), and medical guidelines recommending pharmacologic treatment in appropriate individuals, only 1%-3% of eligible adults in the U.S. are prescribed medication for chronic weight management.4-6 Addressing the needs of this community is a challenge that we take seriously and view as critical for public health.

In addition to our lead asset maridebart cafraglutide, also known as MariTide (formerly AMG 133), Amgen is also advancing an obesity pipeline, which includes both oral and injectable approaches, composed of both incretin and non-incretin mechanisms. Given the heterogeneity of obesity and the number of people impacted, a variety of approaches will be needed to meet the dynamic needs of people living with overweight, obesity and related conditions, underscoring our commitment to innovation and patient care.

42.5%
In the U.S., more than two in five adults are living with obesity7
2x
The worldwide prevalence of obesity more than doubled between 1990 and 20223
~ 1 billion
The number of people worldwide living with obesity3

References

  1. GBD 2015 Obesity Collaborators; Afshin A, et al. Health Effects of Overweight and Obesity in 195 Countries over 25 Years. N Engl J Med. 2017;377(1):13-27. 
  2. Health Risks of Overweight & Obesity. National Institute of Diabetes and Digestive and Kidney Diseases. https://www.niddk.nih.gov/health-information/weight-management/adult-overweight-obesity/health-risks. Published May 2023. Accessed June 23, 2025. 
  3. World Health Organization: WHO. Obesity and overweight. https://www.who.int/news-room/fact-sheets/detail/obesity-and-overweight. Published March 7, 2025. Accessed June 23, 2025. 
  4. Burki T. European Commission classifies obesity as a chronic disease. Lancet Diabetes Endocrinol. 2021;9(7):418  
  5. American Medical Association House of Delegates, 2013. Recognition of obesity as a disease. Resolution 420 (A-13). May 16, 2013. Chicago, USA. 
  6. Kim C, Ross JS, Jastreboff AM, et al. JAMA. 2025;333(24):2203–2206. 
  7. Fryar CD, Carroll MD, Afful J. Prevalence of overweight, obesity, and severe obesity among adults aged 20 and over: United States, 1960–1962 through 2017–2018. NCHS Health E-Stats, Centers for Disease Control and Prevention. 2020. www.cdc.gov/nchs/data/hestat/obesity-adult-17-18/obesity-adult.htm. Updated February 8, 2021. Accessed June 23, 2025.