Scientists move closer to developing oral insulin pill

TOKYO: (Web Desk) – Researchers at Kumamoto University have made a promising breakthrough in the development of an oral insulin pill, offering hope to millions living with Diabetes who currently depend on daily injections.

For decades, insulin therapy has required injections because the body either does not produce enough insulin or stops producing it altogether. Without proper treatment, high blood sugar levels can lead to severe complications such as kidney damage, vision problems, heart disease, and stroke.

One of the biggest challenges in creating an oral insulin pill has been that insulin, being a protein, is broken down in the digestive system before it can reach the bloodstream.

To overcome this, researchers used a cyclic peptide to protect insulin as it passes through the stomach and intestines. In experiments on diabetic mice, two innovative approaches—binding insulin with zinc-stabilized peptide complexes and directly attaching it to peptides—successfully controlled blood sugar levels for up to three days.

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The researchers said their findings confirm that peptide-assisted oral insulin delivery is achievable. They also noted that their approach resolves earlier issues, such as the need for extremely high doses in oral form.

While the results are encouraging, the team stressed that further research, including human clinical trials, is needed before the treatment can become widely available. If successful, an oral insulin pill could significantly improve the quality of life for diabetes patients by eliminating the need for daily injections.