Recent Advances in Weight Management and Diabetes
GLP-1/GIP/glucagon receptor agonists
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Semaglutide (Ozempic®, Wegovy®): Originally for Type 2 diabetes, its higher-dose form, Wegovy, has been approved specifically for chronic weight management. It has demonstrated an average weight loss of around 15% of body weight in clinical trials.
Tirzepatide (Mounjaro®, Zepbound®): This is a dual agonist that targets both GLP-1 and GIP receptors. It has shown even greater efficacy in weight loss and blood sugar control than single-action GLP-1 agonists, with patients achieving an average of up to 20% weight loss.
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Retatrutide, developed by Eli Lilly, is a new investigational product in phase 3 trials that works in three ways (tri-agonist). It targets several body systems at once, improving effectiveness and patient outcomes.
These medicines are a new type of treatment for people with obesity, type 2 diabetes, or metabolic problems. They work by activating three natural hormone pathways in your body at the same time:
GLP-1 (Glucagon-Like Peptide-1)
Helps you feel full sooner and eat less.
Slows down how quickly food leaves your stomach.
Lowers blood sugar by helping your body release insulin when you need it.
2. GIP (Glucose-Dependent Insulinotropic Polypeptide)
Works with GLP-1 to boost insulin release after meals.
May also improve how your body handles fat.
3. Glucagon Receptor Activation
Increases how much energy your body burns.
Helps reduce fat stores, especially around the liver.
Overall effect:
Helps with weight loss by reducing appetite and increasing energy use.
Improves blood sugar control.
May also support heart and liver health.
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Freestyle Libre and Dexcom G6 have been approved by NICE.
Continuous Glucose Monitors (CGMs)
A Continuous Glucose Monitor (CGM) is a small device that tracks blood sugar continuously without finger pricks. A sensor under the skin measures glucose in the fluid and sends data wirelessly to your phone or reader every few minutes. You get real-time readings and can spot trends.
Benefits:
No frequent finger-prick tests
Real-time glucose levels and trends
Alerts for high or low sugar
Better diabetes management
More confidence during exercise, sleep, and meals
Closed Loop Systems (Artificial Pancreas)
A closed-loop system automatically manages blood sugar by linking three parts:
Continuous Glucose Monitor (CGM) → measures your glucose levels in real time.
Insulin Pump → delivers insulin into your body.
Smart Algorithm → calculates how much insulin you need and tells the pump what to do.
Because all three work together, the system can automatically adjust insulin delivery — a bit like an “artificial pancreas.”
Benefits
Fewer finger-prick tests
Better glucose control — keeps levels steadier and reduces “highs” and “lows”
Less mental effort — the system does much of the adjusting for you
More freedom — easier to manage diabetes while sleeping, exercising, or eating