Researchers in Seoul have identified that worsening blood sugar control and early treatment escalation in new diabetes patients could serve as crucial warning signs for pancreatic cancer, potentially enabling earlier diagnosis and intervention.
Researchers at Severance Hospital in Seoul say the way a person’s new diabetes presents itself may offer an early warning sign of pancreatic cancer. Writing in the journal Gut, the team reported that patients whose blood sugar worsened quickly after diagnosis, or who needed treatment escalated sharply from the outset, were more likely to be diagnosed later with pancreatic cancer. The hospital said the findings could help doctors identify higher-risk patients sooner.
The study drew on South Korea’s National Health Insurance data and followed 116,064 adults over 40 with type 2 diabetes, alongside 286,599 people without diabetes, for as long as 15 years. Patients with newly diagnosed diabetes were grouped by initial treatment intensity: those managed without drugs, those given oral medication and those who required insulin from the start. The risk of pancreatic cancer rose in step with treatment intensity, with the insulin group showing the highest relative risk.
The pattern was even more pronounced in cancers diagnosed within three years of diabetes onset. Severance said that, in that window, the likelihood of pancreatic cancer was several times higher than in people without diabetes, and greatest among those who needed insulin early. The researchers also found that a rapid escalation in treatment during the first six months after diagnosis, particularly a switch from tablets to insulin, was linked to a much steeper rise in risk.
Still, the doctors involved cautioned against panic. They said the absolute chance of pancreatic cancer among all new diabetes patients remained low, at below 1% to 2%. Their argument is not that worsening diabetes usually means cancer, but that it should sometimes prompt closer scrutiny for a disease that is often detected late and is difficult to treat once symptoms become obvious.
Disclaimer: This content is for informational purposes only and is not intended to be a substitute for professional medical judgment, advice, diagnosis, or treatment.
